Question:

The thalloid body of a slime mould (Myxomycetes) is known as -

Updated On: May 17, 2024

Protonema
Plasmodium
Fruiting body
Mycelium

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The Correct Option is B

Solution and Explanation

The members of Myxomycetes are called slim moulds because they contain and secrete slime. They are included in lower fungi. Their somatic phase is a multinucleate, diploid holocarpic plasmodium (a product of syngamy). In plasmodium, propagation occurs, through fission or thick walled cysts or sclerotium like structures. Reproduction takes place by the formation of uninucleate, thick walled resting spores which are produced within minute fruiting bodies like structures, ie, the sporangia, however, the true fruiting bodies are absent in slime moulds. Fruiting bodies and mycelium are absent in lower fungi. Protonema is not formed in fungi.

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Biological Classification

The process of grouping living organisms into categories is called biological classification. The most modern 5-kingdom classification was put ahead by an eminent scientist R.H.Whittaker. The five-kingdom classification is based on the criteria like cell structure, mode of nutrition, body form, and reproduction. One of the most important characteristics of this system is that it follows the evolutionary sequence of living organisms. The organisms are classified into distinct taxa or levels like Kingdom, Phylum, Division, Class, Order, Family, Genus, and Species. The 5 kingdoms are as follows: