Question

characterict features of
*•* Phycomycetes
*•* Ascomycetes
*•* Basidiomycetes
*•* deuteromycetes
point by point​

Answer 1

Answer:

Classification of Fungi - Phycomycetes, Ascomycetes, Basidiomycetes and Deuteromycetes

Many system of classification of fungi have been proposed by various mycologists. Classification are based on the following features.

· Morphology and appearance of the fungus.

· Morphology of reproductive structures.

· Types of spores and method by which they are produced.

· Nature of the life cycle.

· Besides, physiological and biochemical features of fungi help in the classification.

Kingdom Fungi- General Characters

I) According to the sepatation of the mycelium and on the basis of characteristic features of reproduction.

a) Phycomycetes

b) Ascomycetes

c) Basidiomycetes

d) Deuteromycetes

Examples: Mushroom, Puff balls, bracket fungi, Agaricus, Polyporus, Puccinia, Ustilago

d)Deuteromycetes (Fungi Imperfecti): In these fungi only asexual method of reproduction by means of conidia has been observed. Perfect or sexual stages are absent. Hence they are grouped under an artificial group called fungi imperfecti.

collectotrichum

Fusarium

Mycelium: Branched, septate mycelium

Asexual reproduction: Conidia

Sexual Reproduction: Absent or not known

Fruiting body: Absent

Examples: Fusarium, Collectotrichum, Pyricularia, Cercospora

II) Classification of fungi is based largely on the particular life cycle involved.

· Zygomycetes

· Ascomycetes

· Basidiomycetes

· Deuteromycetes

a)Zygomycetes(The Conjugation Fungi): Primitive group of fungi

image

Rhizopus

Mycelium: Branched, filamentous and coenocytic hyphae.

Asexual reproduction: Non motile sporangiospores

Sexual reproduction: Take place by means of gametangial copulation.

Resting spore or zygospore is formed by the fusion of two gametangia

image

Zygospore of Rhizopus

Examples: Common bread mould, Rhizopus, Mucor

Learn more: # Fungal Diseases # MCQ on Kingdom Fungi

Answer 2

Answer:

Phycomycetes

. Aspetate coenocytic hypae.

. Hyphal wall can be made of cellulose

. Known as algal fungi.

. Reproduction can be isogmanous or hetrogamous.

Ascomycetes

. Asexual reproduction.

. Hetrokaryosis and parasexuality.

. Plant disease interaction.

. Lichens .

Basidiomaycetes

. Septate mycelium

. Basidia and basidiospores.

. Clamp connection. Not all Basidiomaycetes produce these, but when a fungus does it will always be a bisidiomycete.

Deuteromycetes

. These fungi are also known as the asexual fungi or fungi imperfecti or mitosporic fungi.

. These fungi will not reproduce asexually so known as the imperfect fungi.

. The certain fungus produces appressoria and haustoria.

. Most of the fungus reproduce by means of conidia.