SHORT NOTE ON YEAST

1. General Characters and Structure of
Yeast
Dr. V. RAMESH
Assistant Professor & Head In-Charge,
Department of Botany,
Vivekananda College,
Tiruvedakam West – 625 234
Madurai

2. Yeasts are unicellular, eukaryotic fungi with completely different
properties from those of bacteria,
Yeast contains almost the same organelles of a mature eukaryotic
cell.
Nucleus, Golgi apparatus, mitochondria, endoplasmic reticulum,
vacuole, and cytoskeleton are the most important one.
Yeast cell particle size is typically of 5×10μm.
The primary method of reproduction is by budding, and occasionally
by fission.
Yeast can be identified and characterized based on cell morphology,
physiology, immunology, and using molecular biology techniques.
The natural habitat of yeast may be soil, water, plants, animals, and
insects with special habitat of plant tissues.
Many commercial products contain a mixture of varying proportions
of live and dead Saccharomyces cerevisiae cells are available for using
as feed additives in animals nutrition.
General Characters

3. Shape- Sperical, Ovals, Cylindricals
Size – 5-10mm
Cell wall – Chitin
Cell Cytoplasm
Nucleoplasm
Outer Ectoplasm
Inner Endoplasm
Structure of Yeast

4. THANK YOU ALL