27. Oomycetes, as the name suggests (myc- = fungus), looks like fungi; however, they are not....

27. Oomycetes, as the name suggests (myc- = fungus), looks like fungi; however, they are not. What characteristics do they have in common with fungus? What do they have in difference?

Expert Solution

Ans. Oomycetes is a also called "Water molds". They are pathogenic and cause disease such as seedling blights, foliar blights, damping-off, root rots, and downy mildews.

The Similarities between Oomycetes and Fungi are :

Oomycetes and Fungi

Both have heterotrophic mode of nutrition

Both obtains nutrition from absorption

Dont have chlorophyll and thus cant do photosynthesis

Cell having cell wall (chemical nature varies)

Both produces spores as mode of reproduction

Differences Between Oomycetes and Fungi :

Oomycetes	Fungi
Have aseptate and coenocytic tubular hyphae	Either single cell or septate hyphae, with having one or more nuclei per cell
Vegetative phase diploid, except of transient haploid nuclei in gametangia.	Typically dikaryotic or haploid, often with semi stable or stable diploid stage.
No dikaryotic phase.	Have dikaryotic phase in higher groups.
No toxic metabolites	Presence of toxic metabolites, which are aromatic, heterocyclic components or proteins
Produces oospores during reproduction	Doesnt produce oospores. But other types of spores are formed for reproduction.
Major energy reserve is Mycolaminarin	Glycogen
Have mitochondria with tubular cristae	Flattened cristae

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gladiator answered 3 years ago

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