Page 87 - Pharmacognosy-II (06-PG 303)

Thallophytes

Thallophytes are classified into: Algae, Fungi, Lichens.

Saprophytic Fungi

*Yeast *Plant growth regulators (Plant hormones)

*Penicillium: P. nautatum, P. chrysogenum→Penicillin (antibiotic)

P. griseofulvin → griseofulvin (antifungal)

*Asperigellus:

- Some are edible (as in cheese).

- Some are very toxic (as A. flavus) produces highly toxic toxins not affected by heat or

acids (Aflatoxins).

*Cyclosporine: suppresses the activity of the immune system and is administered after an organ
transplant to help prevent rejection of the organ. It's also used to treat some autoimmune diseases.
–fungus Tolypocladium inflatum

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