Question

What is conidia? In which group/groups is it found?

Answer 1

Hint: Conidia are nonmotile exogenous spores that grow through abstraction at the tips or sometimes on sides of special hyphae known as conidiophores. It is present in members of Actinomycetes. Main examples of Conidia are – Penicillium and Aspergillus.

Complete answer:
Conidia sometimes termed as asexual chlamydospore or chlamydoconidia. Conidia is an asexual, non-motile spore of a fungus. Asexual reproduction in ascomycetes is by the process of formation of conidia that are borne on specialized stalks usually called conidiophores.
The morphology of these specialized conidiophores is often different between species and, before the development of molecular techniques at the very end of the 20th century.
 There are two main Conidia development –
 > Blastic confidingness - where the spore is already evident before it separates from the conidiogenous hypha that provides rise to it.
 > Thallic confidingness - where first a cross-wall appears as well as it also creates a cell develops into a spore.
Conidia germination-
A conidia may form germ tubes also called germination tubes as well as the conidial anastomosis tubes in specific conditions. These two are some of the specialized hyphae which are formed by fungal conidia. The germ tubes will develop to form the hyphae as well as fungal mycelia.

Note: The conidial anastomosis tubes are morphologically as well as physiologically distinct from germ tubes. After conidia consists of forming conidial anastomosis tubes, they develop in homing towards each other, and the next step of fusion takes place. Once fusion happens, the nuclei can pass through fused CATs.