Tiêu đề 03 Classification of Fungi by Alexopoulos and Mims (1979).pdf ✅

➢ It is proposed by C. J. Alexopoulos and C. W. Mims (1979) ➢ C. J. Alexopoulos and C. W. Mims (1979) placed fungi and slime molds under their own kingdom called Myceteae. ➢ The kingdom is divided into 3 divisions, 8 subdivisions, 11 classes and 1 form class C. J. Alexopoulos C. W. Mims ➢ Achlorophyllous and heterotrophs ➢ Unicellular or filamentous soma (thallus) ➢ Chitinous cell wall ➢ Reserve food material is glycogen and oil droplets ➢ On the basis of presence or absence of cell wall, centriole and flagellate cells in life cycle, the kingdom myceteae divided is into three major divisions: gymnomycota, mastigomycota and amastigomycota

KINGDOM: MYCETEAE DIVISION I GYMNOMYCOTA DIVISION II MASTIGOMYCOTA DIVISION III AMASTIGOMYCOTA ➢ Phagotrophic organism ➢ Lack of cell walls ➢ This division comprises two subdivisions 1. Acrasiogymnomycotina 2. Plasmodiogynomycotina ➢ Absorptive nutrition ➢ Mycelium is coenocytic ➢ Fungi with centrioles ➢ Flagellate cells produced during life cycle ➢ Asexual reproduction typically by zoospores ➢ This division comprises two subdivisions 1. Haplomastigomycotina 2. Diplomastigomycotina ➢ Absorptive nutrition ➢ Mycelium aseptate or septate ➢ Fungi without centriole ➢ Motile cells are absent throughout life cycle ➢ This division comprises four subdivisions 1. Zygomycotina 2. Ascomycotina 3. Basidiomycotina 4. Deuteromycotina
➢ These are commonly known as cellular slime molds ➢ They exist as Individual amoeboid cells ➢ Under unfavourable condition, these individual cells aggregate to form a multicellular slug-like structure called a pseudoplasmodium. ➢ It includes a single class Acrasiomycetes. CLASS 1: Acrasiomycetes ➢ Most abundantly found in upper layers of humus in well established deciduous forests and as well as in soils. ➢ Flagellated cells absent. ➢ E.g., Dictyostelium