cell Structure of fungi unicellular and multicellular

These is notes for botany students

In these slide I explain structure of fungi and unicellular fungi and multicellular fungi
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1. Govt. Sukhram nage college nagri Dhamtari ( c.g. ) 493778 Session – 2023-24 Paper – 3 – Microbiology, Phychology and Mycology . Topic – Cell structure of Fungi – unicellular and multicellular Date – 20-09-2023 Guided by Asst. Prof. L. Rathiya Presented by Chelsi Dewangan M.Sc. 1 sem Botany

2. Cell structure of fungi Content Introduction Characters of fungi Structure of fungi Unicellular fungi Multicellular fungi Comparison between unicellular and multicellular

3. Introduction Mycology – study of fungi. Fungi are a diverse group of organism that play crucial role in ecosystems as Decomposers/ saprophitic Pathogens / parasitic Symbionts. Fig. – Agaricus https://www.popsci.com/science/fungi-diversity-moorea-polynesia/?amp

4. Characters of fungi Fungus is latin word which means mushroom , Heterotrophic – parasitic , saprophytic , symbiotic, Cell wall - Chitin ( polysaccharides) or fungal celluslos , Lack of chlorophyll, Eukaryotic, Store energy in the form of glycogen, They are multicellular , exception- Yeast ( unicellular).

5. structure of fungi Cell wall Made of Chitin and glucan or fungal cellulose. Chitin is polymer of N-acetyl glucosamine unit. Glucan polymer of Glucose. Cellulose is polymer of B- Glucose . Mitochondria Powerhouse of the cell. Generating energy and fuel for metabolic activity. Vacuoles Store and regulate the concentrations. Maintain turgor pressure. Golgi Bodies Responsible for packaging and transport or protein Lipid and other macmolecules . Fig. Structure of hyphae https://www.popsci.com Fig. Structure of hyphae

6. Endoplasmic reticulum Protein synthesis, modification and secretion of key molecule. Hyphae Thread like structure. Provide surface area for nutrients, absorption for growth. Mycelium Network of hyphae. Absorb nutrients from environment. Septa Cross wall structure present in hyphae. Controling nutrients flow. Fruiting body Develop Spores and release https://fungi.com

7. Specialized structure Rhizoids Rhiza - root + oeides – like. Rhizoids are short, delicate, filamentous. Contain protoplasm but no nuclei. Appressorium Germ tube inter the epidermal cell of the host. Haustoria Haustor - drinker. Outgrowth structure into the cell for absorb nutrients. Mycorrhiza Mykes – mushroom+ rhiza - root.

8. Unicellular fungi They are single celled , spherical oval or elongated. Cell wall Cytoplasm Nucleus Plasma membrane Reproduction – by budding or division Example – yeast cell Cryptococcus Neoformans . https://www.dreamstime.com/illustration

9. Multicellular fungi They are composed hyphae thread like structure, filamentous , complex , fruiting body. Hyphae – thread like structure, Mycelium – network of hyphae , Fruiting body - develop spore and release , Septa – cross wall structure Reproduction – both sexually and asexually, Example - Mushroom Fig. – Mushroom Fig. - Structure of hyphae https://www.dreamstime.com/illustration

10. Comparison between unicellular and multicellular Unicellular fungi Cell structure Single cell organism. Both eukaryotes and prokaryotes . Simple cell structure Growth Growth through budding. Reproduction Asexual . By budding. Life cycle Lifespan usually short . Example Yeast Multicellular fungi Cell structure Form extensive hyphal network. Only eukaryotes. Complex cell structure with hyphae Growth Through elongation of hyphae and mycelium. Reproduction Sexual and asexual . Spores releasing from fruiting body. Life cycle Comparatively longer lifespan. Example Mushroom

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