Yeast Under a Microscope: Morphology, Staining, and Identification
Yeast identification under the microscope relies on recognizing distinctive cellular features such as budding patterns, pseudohyphae formation, and cell wall characteristics, then applying appropriate staining methods to confirm what is observed. This article provides laboratory students, technicians, researchers, and diagnostic professionals with a practical framework for examining yeast specimens, selecting suitable stains, interpreting morphological findings, and documenting results in a way that supports accurate identification and defensible reporting.
Scope and Context for Microscopic Yeast Examination
Microscopic examination of yeast serves different purposes depending on the laboratory setting. In clinical diagnostics, the goal is often to detect yeast cells in patient samples and provide preliminary information that guides antifungal therapy while culture results are pending. In research laboratories, yeast microscopy supports studies of cell biology, genetics, and drug mechanisms. In industrial settings, microscopy monitors fermentation processes and detects morphological changes that signal stress or contamination.
The yeast cell is a eukaryotic organism with a rigid cell wall, cytoplasmic membrane, nucleus, and various organelles. Under the light microscope, unstained yeast cells appear as refractile, oval or spherical structures that may be difficult to distinguish from debris, erythrocytes, or small fungal elements. Staining methods enhance contrast and reveal structural details that support identification.
The Laboratory Quality Management System Handbook from the World Health Organization emphasizes that all laboratory procedures, including microscopy, must be supported by documented protocols, trained personnel, and quality control measures. This framework applies directly to yeast examination, where accurate results depend on consistent technique and proper interpretation.
Core Principles of Yeast Morphology
Cellular Structure and Appearance
Yeast cells typically measure 3 to 10 micrometers in diameter, though size varies by species and growth conditions. Under bright-field microscopy, unstained cells appear as pale, refractile bodies with a distinct cell wall. The cytoplasm may show vacuoles, which appear as clear areas within the cell, particularly in older cultures.
The cell wall is a defining feature of yeast and other fungi. It provides structural support and protects the cell from osmotic stress. The wall contains chitin, glucans, and mannoproteins, with the specific composition varying among species. The structural-guided identification of two modulators of beta-1,3-glucan synthase FKS1 study describes how beta-1,3-glucan synthase is critical for fungal cell wall formation and serves as a target for antifungal drugs. This knowledge matters for microscopy because cell wall thickness and composition influence how yeast cells take up stains and how they appear under different optical techniques.
Budding and Reproduction
Yeast reproduces asexually by budding, a process in which a daughter cell forms as an outgrowth of the parent cell. The bud enlarges, receives a copy of the nucleus, and eventually separates, leaving a bud scar on the parent cell. Under the microscope, budding appears as a small protrusion on the cell surface that may be round, oval, or elongated depending on the species and growth phase.
Budding patterns provide useful identification clues. Some species produce buds at multiple sites on the cell surface, while others bud only at the poles. The size of the bud relative to the parent cell also varies. In some species, buds remain attached and elongate to form pseudohyphae, which are chains of elongated cells that resemble true hyphae but have constrictions at the septa.
The online monitoring of the morphology of an industrial sugarcane biofuel yeast strain via in situ microscopy study demonstrated that in situ microscopy can reveal single cells, budding yeast cells, and pseudohyphae in industrial fermentation. The study found that single yeast cell volume increased by roughly 40 percent over the lag phase before budding and remained approximately constant thereafter. Pseudohyphae with three or more cells appeared mostly during the stationary phase. This research shows how morphological observation provides real-time information about culture status and stress conditions.
Pseudohyphae and True Hyphae
Pseudohyphae are chains of elongated yeast cells that remain attached after budding. They differ from true hyphae in that pseudohyphae have visible constrictions at the junctions between cells, while true hyphae have parallel walls and septa without constrictions. The distinction matters for species identification because some clinically important yeasts, such as Candida albicans, produce pseudohyphae under certain conditions, while other species do not.
The expression of endonuclease RsaI induces chromosomal rearrangement in the yeast Kluyveromyces marxianus study reported that cells expressing RsaI and grown in galactose medium exhibited an elongated, rod-shaped morphology under a microscope. This observation illustrates that genetic changes and environmental conditions can alter yeast morphology in ways that are visible microscopically.
Capsule and Other Extracellular Structures
Some yeast species produce a polysaccharide capsule that surrounds the cell wall. Cryptococcus neoformans is the most clinically important encapsulated yeast. Under the microscope, the capsule appears as a clear halo around the cell when stained with India ink or nigrosin. The capsule is not visible with Gram stain or most other routine stains.
Staining Techniques for Yeast Identification
Gram Stain
The Gram stain is the most commonly used stain in clinical microbiology and is often the first step in examining specimens for yeast. Yeast cells are Gram positive and appear as purple or blue oval or spherical cells. Budding cells and pseudohyphae are visible with this stain.
The Gram stain procedure involves four steps: crystal violet staining, iodine mordanting, alcohol decolorization, and safranin counterstaining. Yeast cells resist decolorization because their thick cell wall retains the crystal violet-iodine complex. This property distinguishes yeast from most bacteria, which appear pink after decolorization if they are Gram negative.
The microflora investigation experiment from the Russian space station Mir used the Gram stain method to observe bacteria separated from filamentous fungi and yeasts. This study demonstrates the routine application of Gram staining in environmental microbiology and highlights the importance of separating yeast from other microorganisms before detailed examination.
Calcofluor White Stain
Calcofluor white is a fluorescent stain that binds to chitin and cellulose in fungal cell walls. When viewed under a fluorescence microscope with ultraviolet excitation, yeast cells appear bright blue or white against a dark background. This stain is highly sensitive for detecting fungal elements in clinical specimens and is particularly useful for examining samples with low organism burden.
Calcofluor white staining requires a fluorescence microscope equipped with the appropriate filter. The stain is rapid, taking only a few minutes to perform, and can be combined with potassium hydroxide to clear background debris in clinical specimens. The stain does not differentiate yeast species but confirms the presence of fungal elements.
India Ink Preparation
India ink is used to demonstrate the capsule of Cryptococcus neoformans. A drop of specimen is mixed with a drop of India ink on a slide, and a coverslip is applied. The ink particles do not penetrate the capsule, so the capsule appears as a clear zone around the yeast cell against a dark background.
This preparation is simple and rapid but requires careful interpretation. Debris and air bubbles can mimic capsules, and non-encapsulated strains of Cryptococcus will not show the characteristic halo. The India ink preparation is most useful for examining cerebrospinal fluid from patients with suspected cryptococcal meningitis.
Methylene Blue Stain
Methylene blue is a vital stain that can distinguish living from dead yeast cells. Living cells take up the stain slowly and appear pale blue, while dead cells stain dark blue because their damaged membranes allow rapid dye uptake. This property makes methylene blue useful for viability assessment in fermentation and research applications.
The rapid eukaryotic impedimetric biosensing of naproxen and isoniazid study used methylene blue viability staining to confirm metabolic inhibition and membrane damage in yeast cells exposed to pharmaceuticals. The study found that naproxen demonstrated a more pronounced cytotoxic effect, with cell viability dropping to 41.08 percent at 10 mM compared to 68.79 percent for isoniazid. This application shows how methylene blue staining provides quantitative viability data that complements other analytical methods.
Fluorescent Stains and Advanced Techniques
Beyond calcofluor white, several fluorescent stains and techniques enhance yeast visualization. Fluorescent brighteners, lectin conjugates, and antibody-based stains can label specific cell wall components or species-specific antigens. These methods require fluorescence microscopy and appropriate controls.
The visualisation of peroxisomes: a journey through seven decades review describes the evolution of imaging strategies from early cytochemical and electron microscopy methods to modern fluorescence-based and high-resolution techniques for visualizing organelles in yeast and other organisms. This historical perspective shows how microscopy methods have advanced from simple bright-field observation to sophisticated molecular labeling.
The IntAct-U-ExM enables super-resolution imaging of isoform-specific actin networks across species study describes expansion microscopy for imaging actin structures in yeast, mammalian cells, and primary neurons. The method achieved robust visualization of actin patches, cables, and rings in yeast at improved resolution. While this technique is beyond routine diagnostic microscopy, it demonstrates the range of imaging approaches available for yeast research.
At a Glance: Yeast Morphology and Stain Selection
| Feature or Stain | What It Reveals | Best Application | Interpretation Notes |
|---|---|---|---|
| Unstained bright-field | Cell shape, size, vacuoles, refractility | Initial screening of cultures | Limited contrast, debris may mimic yeast |
| Gram stain | Gram-positive cell wall, budding, pseudohyphae | Clinical specimens, culture confirmation | Yeast appear purple, bacteria differentiate by color |
| Calcofluor white | Chitin in cell wall, fluorescent signal | Low-burden specimens, fungal screening | Requires fluorescence microscope, does not identify species |
| India ink | Polysaccharide capsule | Cryptococcus neoformans in CSF | Debris and bubbles can cause false positives |
| Methylene blue | Viability, membrane integrity | Fermentation monitoring, research | Living cells pale, dead cells dark blue |
| Fluorescent antibody | Species-specific antigens | Confirmatory identification | Requires specific reagents and controls |
Practical Workflow for Yeast Examination
Step 1: Specimen Collection and Preparation
Proper specimen collection is essential for reliable microscopy. Clinical specimens should be collected before antifungal therapy begins and transported to the laboratory promptly. Culture samples should be taken from isolated colonies on appropriate media, avoiding mixed cultures that complicate interpretation.
For direct examination of clinical specimens, a wet mount or stained smear is prepared. For culture samples, a small portion of a colony is emulsified in a drop of saline or water on a slide. The preparation should be thin enough that individual cells are visible without crowding.
Step 2: Initial Bright-Field Examination
Begin with unstained examination under low power to locate the specimen, then switch to high power to examine cellular details. Note the size, shape, and arrangement of cells. Look for budding, pseudohyphae, and any unusual features such as capsules or intracellular inclusions.
Record the following observations: cell size range, cell shape, presence and pattern of budding, presence of pseudohyphae or true hyphae, presence of capsules, and any other distinctive features. These observations guide stain selection and provide baseline data for identification.
Step 3: Stain Selection and Application
Choose the stain based on the specimen type and the information needed. For clinical specimens, Gram stain and calcofluor white are the most useful initial stains. For culture identification, Gram stain provides basic morphological information, while specialized stains may be needed for specific features.
The protocol to stain phagocytic macrophages and assess phagocytosis function in phagocytic cells describes a yeast phagocytosis assay that includes yeast staining, phagocytosis of stained yeast, hematoxylin staining of macrophages, and light microscopy imaging. This protocol demonstrates how staining techniques are adapted for specific experimental purposes and provides a model for developing standardized staining procedures.
Step 4: Microscopic Examination and Interpretation
Examine stained preparations systematically, scanning the entire smear before focusing on specific areas. Evaluate the quality of the stain, the distribution of organisms, and the presence of any artifacts. Compare findings with known morphological characteristics of common yeast species.
The multiplexed automated digital microscopy for rapid identification and antimicrobial susceptibility testing of bacteria and yeast directly from clinical samples describes automated approaches to microscopy that can identify organisms directly from clinical samples. While automated systems are not available in all laboratories, they demonstrate the potential for standardized, objective interpretation of microscopic findings.
Step 5: Documentation and Reporting
Document all observations in a standardized format that includes specimen identification, preparation method, stain used, microscopic findings, and interpretation. Include representative images when possible, as these provide a permanent record and support consultation with other laboratory personnel.
The Laboratory Quality Management System Handbook emphasizes that documentation is a critical component of laboratory quality. Accurate records support patient care, quality improvement, and regulatory compliance.
Common Yeast Species and Their Microscopic Features
Candida albicans
Candida albicans is the most common yeast isolated from clinical specimens. Under the microscope, it appears as oval, budding yeast cells measuring 4 to 6 micrometers. In tissue or on certain media, it produces pseudohyphae and true hyphae. The presence of pseudohyphae in clinical specimens suggests active infection instead of colonization.
The meso-Raman approach for rapid yeast cells identification study demonstrated the ability of principal component analysis to differentiate the most common Candida species, namely C. glabrata, C. albicans, C. parapsilosis, and C. tropicalis. While Raman spectroscopy is not routine microscopy, this research shows that species-level differentiation of Candida is possible using optical methods.
Candida glabrata
Candida glabrata appears as small, oval yeast cells measuring 2 to 4 micrometers. It does not produce pseudohyphae or true hyphae, which distinguishes it from C. albicans. The small size and absence of hyphae can make C. glabrata difficult to identify microscopically, and culture-based methods are often needed for confirmation.
Cryptococcus neoformans
Cryptococcus neoformans appears as spherical yeast cells measuring 5 to 10 micrometers with a wide polysaccharide capsule. The capsule is visible with India ink preparation but not with Gram stain. The organism may show narrow-based budding, a feature that helps distinguish it from other yeasts.
Saccharomyces cerevisiae
Saccharomyces cerevisiae is the baker's and brewer's yeast and is also an emerging opportunistic pathogen. It appears as large, oval cells measuring 5 to 10 micrometers with multipolar budding. It does not produce pseudohyphae under most conditions. The creeping yeast: a simple, cheap and robust protocol for the identification of mating type in Saccharomyces cerevisiae study describes a method for identifying mating types based on cell aggregation, demonstrating that macroscopic observations can complement microscopic examination.
Histoplasma capsulatum
Histoplasma capsulatum is a dimorphic fungus that exists as a yeast in tissue and as a mold in culture. The yeast form appears as small, oval cells measuring 2 to 4 micrometers, often within macrophages. The antigens from the yeast phase of Histoplasma capsulatum study examined the morphology of the cell as revealed by the electron microscope, providing detailed structural information about this organism.
Comparison Table for Common Yeast Species
| Species | Cell Size | Shape | Budding Pattern | Pseudohyphae | Distinctive Features |
|---|---|---|---|---|---|
| Candida albicans | 4 to 6 micrometers | Oval | Multipolar | Present in tissue | Germ tube positive |
| Candida glabrata | 2 to 4 micrometers | Small oval | Multipolar | Absent | Small size, no hyphae |
| Cryptococcus neoformans | 5 to 10 micrometers | Spherical | Narrow-based | Absent | Wide capsule with India ink |
| Saccharomyces cerevisiae | 5 to 10 micrometers | Large oval | Multipolar | Rare | Large cells, no capsule |
| Histoplasma capsulatum | 2 to 4 micrometers | Small oval | Single bud | Absent | Intracellular in macrophages |
Quality Controls and Assurance
Positive and Negative Controls
Every staining run should include positive and negative controls to verify that the stain is working correctly. A known yeast culture, such as Saccharomyces cerevisiae or Candida albicans, serves as a positive control. A bacterial culture or sterile saline serves as a negative control. Controls should be processed identically to patient specimens.
The Laboratory Quality Management System Handbook emphasizes that quality control is essential for reliable laboratory results. Staining controls detect problems with reagents, technique, or equipment before they affect patient results.
Reagent Quality and Storage
Stains and reagents have limited shelf life and must be stored according to manufacturer instructions. Expired reagents may produce weak or inconsistent staining. Each new lot of stain should be tested with known positive and negative controls before use in patient testing.
Microscope Maintenance
The microscope must be properly maintained to produce reliable results. Clean lenses, correct alignment, and functional illumination are essential. Fluorescence microscopes require regular checks of the light source and filter performance. The Laboratory Biosafety Manual from the World Health Organization provides guidance on safe handling of specimens and equipment in the laboratory.
Proficiency Testing
Laboratories performing yeast microscopy should participate in proficiency testing programs that provide unknown specimens for identification. These programs evaluate the laboratory's ability to correctly identify organisms and detect problems with technique or interpretation.
Records and Measurements
Standardized Reporting Forms
Use standardized forms to record microscopic findings. The form should include patient or specimen identification, date and time of collection, specimen type, preparation method, stain used, and detailed findings. Include space for describing cell morphology, budding patterns, and any unusual features.
Image Documentation
Capture images of representative fields for the permanent record. Digital images can be stored in the laboratory information system and retrieved for review, consultation, or quality improvement. Images should be labeled with the specimen identifier, stain, and magnification.
Quantitative Measurements
When appropriate, record quantitative measurements such as cell size, bud size, or the proportion of budding cells. These measurements can support species identification and provide baseline data for monitoring culture characteristics over time.
The online monitoring of the morphology of an industrial sugarcane biofuel yeast strain via in situ microscopy study demonstrated that quantitative morphological measurements, such as cell volume changes during lag phase, provide valuable process information. Similar measurements in diagnostic laboratories can support interpretation and quality improvement.
Common Failure Patterns and Troubleshooting
Weak or Absent Staining
Weak staining can result from expired reagents, incorrect reagent concentrations, insufficient staining time, or improper washing. Check reagent expiration dates, verify that the staining protocol was followed correctly, and repeat the stain with fresh reagents if necessary.
Excessive Background Staining
Background staining can obscure yeast cells and complicate interpretation. This problem often results from inadequate washing, thick smears, or debris in the specimen. Prepare thinner smears and ensure thorough washing between staining steps.
Difficulty Distinguishing Yeast from Debris
Unstained yeast cells can be difficult to distinguish from debris, erythrocytes, or air bubbles. Use staining to enhance contrast, and look for characteristic features such as budding, cell walls, and nuclei. Calcofluor white is particularly useful for detecting fungal elements in specimens with abundant debris.
False Negative Results
False negatives can occur when the organism burden is low, the specimen is inadequate, or the stain fails. Examine multiple fields, use a sensitive stain such as calcofluor white for low-burden specimens, and ensure that controls are working correctly.
False Positive Results
False positives can result from artifacts that mimic yeast cells, such as debris, erythrocytes, or stain precipitate. Confirm findings with a second stain or method, and correlate microscopy with clinical information.
Limitations of Microscopic Identification
Species-Level Identification
Microscopy alone cannot identify most yeast species with certainty. While certain features suggest particular species, culture-based methods or molecular testing are required for definitive identification. The identification of yeasts present in sour fermented foods and fodders study illustrates the range of methods used for yeast identification in food microbiology, including biochemical and molecular approaches.
Mixed Cultures
Clinical specimens may contain multiple yeast species or mixtures of yeast and bacteria. Microscopy may not detect all organisms present, and culture is needed to identify all species. The microflora investigation experiment demonstrated the importance of separating bacteria from filamentous fungi and yeasts before detailed examination.
Morphological Variation
Yeast morphology varies with growth conditions, culture age, and environmental stress. Cells from old cultures may appear atypical, and stressed cells may show unusual features. The online monitoring of the morphology of an industrial sugarcane biofuel yeast strain via in situ microscopy study found that thermal stress caused cells to become smaller and exhibit intracellular inhomogeneities. Interpret morphological findings in the context of culture conditions and specimen source.
Automated Identification Systems
Automated microscopy and image analysis systems are being developed for yeast identification. The convolutional neural network segments yeast microscopy images with high accuracy study described a neural network that segments yeast microscopy images with high accuracy, including for buds, and outperformed existing methods on benchmark images. The machine learning-assisted classification of pathogenic yeasts using laser light scattering and conventional microscopy study explored machine learning approaches for yeast classification. These systems may improve standardization and throughput, but they require validation and quality control.
Biosafety Considerations
Specimen Handling
Clinical specimens may contain infectious agents, including pathogenic yeast and other microorganisms. Handle all specimens as potentially infectious and follow standard precautions. The Laboratory Biosafety Manual from the World Health Organization provides guidance on safe handling of specimens, including the use of biological safety cabinets for procedures that generate aerosols.
Culture Handling
Yeast cultures may produce spores or aerosols during manipulation. Open cultures only in a biological safety cabinet, and use appropriate personal protective equipment. Dispose of cultures and contaminated materials according to institutional and regulatory requirements.
Chemical Safety
Stains and reagents may be hazardous. Read safety data sheets before use, and follow recommended handling procedures. Some stains, such as calcofluor white, require careful handling to avoid skin and eye contact.
Waste Disposal
Dispose of stained slides, culture materials, and contaminated supplies in appropriate biohazard waste containers. Follow institutional and regulatory requirements for disposal of infectious waste.
Professional Escalation Criteria
When to Consult a Supervisor or Specialist
Consult a supervisor or specialist when microscopic findings are ambiguous, when species identification is required for patient management, or when quality control problems cannot be resolved. Early consultation can prevent errors and improve patient outcomes.
When to Request Additional Testing
Request additional testing when microscopy suggests a specific organism but confirmation is needed, when the specimen is inadequate for reliable interpretation, or when clinical findings do not correlate with microscopic observations. Culture, antigen testing, or molecular methods may be needed for definitive identification.
When to Report Critical Findings
Report critical findings promptly to the requesting clinician. These include the presence of yeast in sterile body fluids, such as cerebrospinal fluid or blood, and findings that suggest invasive fungal infection. The fast-tracking fungal detection: a rapid flow cytometric method for the detection of yeasts in blood cultures study describes a rapid method for detecting yeast in blood cultures, highlighting the clinical importance of timely detection of candidemia.
Frequently Asked Questions
What does yeast look like under a microscope?
Yeast cells appear as oval or spherical structures measuring 3 to 10 micrometers in diameter. They have a distinct cell wall, clear cytoplasm, and may show vacuoles. Budding cells appear as small protrusions on the parent cell surface. Unstained cells are refractile and may be difficult to distinguish from debris, so staining is often needed for clear visualization.
How can I tell yeast apart from bacteria under the microscope?
Yeast cells are larger than most bacteria, typically measuring 3 to 10 micrometers compared to 0.5 to 2 micrometers for bacteria. Yeast cells have a distinct nucleus and may show budding, while bacteria do not bud. With Gram stain, yeast appear purple and are usually larger and more oval than Gram-positive bacteria. The presence of budding or pseudohyphae confirms yeast.
What is the best stain for yeast identification?
The best stain depends on the specimen and the information needed. Gram stain is the most common initial stain and works well for most clinical specimens. Calcofluor white is more sensitive for detecting fungal elements, especially in specimens with low organism burden. India ink is specific for demonstrating the capsule of Cryptococcus neoformans. Methylene blue is useful for viability assessment.
How do I distinguish pseudohyphae from true hyphae?
Pseudohyphae are chains of elongated yeast cells with visible constrictions at the junctions between cells. True hyphae have parallel walls and septa without constrictions. Pseudohyphae result from budding where daughter cells remain attached and elongate. True hyphae grow by apical extension and have a uniform diameter along their length.
Can I identify yeast species by microscopy alone?
Microscopy alone cannot definitively identify most yeast species. While certain features suggest particular species, such as the capsule of Cryptococcus neoformans or the small size of Candida glabrata, culture-based methods or molecular testing are required for definitive identification. Microscopy provides preliminary information that guides further testing.
Why are my yeast cells not staining well?
Weak staining can result from expired reagents, incorrect reagent concentrations, insufficient staining time, or improper washing. Check reagent expiration dates and verify that the staining protocol was followed correctly. Prepare thinner smears and ensure thorough washing between staining steps. Run positive and negative controls to verify that the stain is working.
What is the difference between a wet mount and a stained preparation?
A wet mount is an unstained preparation of specimen in liquid, used for initial screening and for observing motility or capsules. A stained preparation uses dyes to enhance contrast and reveal structural details. Stained preparations are generally more useful for yeast identification because they highlight cell walls, nuclei, and other features that are difficult to see in wet mounts.
When should I use fluorescence microscopy for yeast examination?
Fluorescence microscopy is useful when the organism burden is low, when background debris interferes with bright-field examination, or when specific fluorescent stains are needed. Calcofluor white is the most commonly used fluorescent stain for yeast and binds to chitin in the cell wall. Fluorescence microscopy requires appropriate equipment and training.
Related Diagnostic Guides
- How to Perform a Gram Stain: Protocol and Quality Control
- Common Gram Staining Errors and How to Fix Them
- Gram Staining Protocol: Reagents, Procedure, and Quality Control
- How to Interpret Gram Stain Results: Morphology, Arrangement, and Color
- How to Prepare a Bacterial Smear for Gram Staining: Step-by-Step Protocol
References and Further Reading
- Laboratory Quality Management System Handbook. World Health Organization.
- Laboratory Biosafety Manual. World Health Organization.
- Assay Guidance Manual. National Center for Advancing Translational Sciences.
- Bioanalytical Method Validation Guidance. U.S. Food and Drug Administration.
- NCBI Literature Resources. National Center for Biotechnology Information.
- Historical landmarks of autophagy research.. Cell research, 2014.
- Meso-Raman approach for rapid yeast cells identification.. Biophysical chemistry, 2019.
- A convolutional neural network segments yeast microscopy images with high accuracy.. Nature communications, 2020.
- Clathrin-mediated endocytosis in budding yeast.. Trends in cell biology, 2012.
- Microflora investigation experiment.. Uchu Seibutsu Kagaku, 2001.
- RQC2 is a major player in peptide release from stalled ribosomes.. Structure (London, England : 1993), 2025.
- Structural-guided identification of two modulators of β-1,3-glucan synthase FKS1.. Nature communications, 2025.
- Creeping yeast: a simple, cheap and robust protocol for the identification of mating type in Saccharomyces cerevisiae.. FEMS yeast research, 2022.
- Visualisation of peroxisomes: a journey through seven decades.. 2026.
- Protocol to stain phagocytic macrophages and assess phagocytosis function in phagocytic cells.. 2026.
- Microfluidics-based cell recognition through optimizing suspended cell staining techniques and artificial intelligence.. 2026.
- Fast-tracking fungal detection: a rapid flow cytometric method for the detection of yeasts in blood cultures.. 2026.
- IntAct-U-ExM enables super-resolution imaging of isoform-specific actin networks across species.. 2026.
- Rapid Eukaryotic Impedimetric Biosensing of Naproxen and Isoniazid: A Proof-of-Concept for Acute Toxicity Monitoring.. 2026.
- Water-soluble yeast β-glucan accelerates oral ulcer healing in rats via collagen synthesis and epithelial regeneration.. 2026.
- Online monitoring of the morphology of an industrial sugarcane biofuel yeast strain via in situ microscopy.. Journal of Microbiological Methods, 2020.
- Preparing of N-P dual-doped auricularia auricula carbon host by yeast fermentation and its application in Li-S batteries. Journal of Saudi Chemical Society, 2024.
- Antimicrobial printed linen fabric by using brewer’s yeast enzyme. Beni-Suef University Journal of Basic and Applied Sciences, 2024.
- Antigens from the yeast phase of Histoplasma capsulatum. I. Morphology of the cell as revealed by the electron microscope.. Experimental Cell Research, 1956.
- Expression of Endonuclease RsaI Induces Chromosomal Rearrangement in the Yeast Kluyveromyces marxianus. Current Issues in Molecular Biology, 2026.
- Effect of Yeast Cell Morphology, Cell Wall Physical Structure and Chemical Composition on Patulin Adsorption. PLoS ONE, 2015.
- Immobilization method of yeast cells for intermittent contact mode imaging using the atomic force microscope.. Ultramicroscopy, 2010.
- Multiplexed Automated Digital Microscopy for Rapid Identification and Antimicrobial Susceptibility Testing of Bacteria and Yeast Directly from Clinical Samples. Clinical Microbiology Newsletter, 2015.
- Identification of yeasts present in sour fermented foods and fodders. Applied Biochemistry and Biotechnology Part B Molecular Biotechnology, 2002.
- A Complete Transfer Learning-Based Pipeline for Discriminating Between Select Pathogenic Yeasts from Microscopy Photographs. Pathogens, 2025.
- Machine Learning-Assisted Classification of Pathogenic Yeasts Using Laser Light Scattering and Conventional Microscopy. Journal of Imaging, 2026.
- Screening and identification of superior yeasts from natural fermented blueberry wine. Journal of Chinese Institute of Food Science and Technology, 2013.
This article is educational and does not replace validated laboratory procedures, institutional biosafety review, manufacturer instructions, or professional interpretation.