Eukarya Kukaryotic Microorganisms Introduction, Protozoa, Wall Less Eukaryotes, Spread in Nature, Pathogens of Humans, Basically in Motility

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Your Ad Here	Microbial Diversity-V: Eukarya (Eukaryotic Microorganisms) Eukaryotic microorganisms (treated as protistans and mycophytans by whittaker’s five kingdom system and grouped together, at present, under the domain Eukarya) are the organisms that are unified by their distinct cell-structure and phylogenetic history (Chapter 2). They all posses primarily glycerol fatty acid diaster membrane lipids and eukaryotic rRNA. However, there exists a diverse array of eukaryotic microorganisms like prokaryotes and they are represented by protozoa, slime molds, microfungi and microalgae.
The protozoa are motile, wall-less eukaryotes wide spread in nature and as pathogens of humans and other animals. The slime molds resemble protozoa basically in motility, absence of cell wall and ingestive4 (phagocytotic) mode of nutrition but differ from them in phylogeny and by the fact that their cells undergo a life-cycle where motile cells aggregate to form a multicellular structure called a fruiting body from which spores are produced that give rise to new motile cell progeny. Microfungi lack photosynthetic pigment, have adopted absorptive mode of nutrition, possess chitin as chief constituent in their cell wall, and are either unicellular (yeasts) or filamentous (molds).
They are major agents of biodegradation in nature and are major recyclers of organic matter in soils and other ecosystems. Microalgae are photosynthetic containing chlorophyll-rich organelles called 'chloroplasts' and can thrive in environments possessing only a few minerals, CO2 and light. They inhabit both soil and aquatic habitats and are the major primary producers in nature.	Your Ad Here

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