Question

What are the orders of class Myxophyceae?

Answer 1

Myxophyceae:

1. Blue-green algae are a general term for members of the Myxophyceae (Cyanophyceae) family.
2. The term "blue-green algae" derives from the presence of the predominant pigment c-phycocyanin, a blue-green pigment.
3. In biological classification, the order is a taxonomic rank that is used to classify species and is denoted by nomenclature codes.
4. Life, domain, kingdom, phylum, class, order, family, genus, and species are the well-known ranks in decreasing order, with order coming between class and family.
5. The Myxophyceae family contains 1500 species and 150 genera.

The Myxophyceae class consists of five orders:

1. Chroococcales: Chroococcales are endospore and cell-dividing unicellular or colonial cyanobacteria, e.g.Chroococcus.
2. Chamaesiphonales: The phylum Chamaesiphonales is made up of lithophytes that are either colonial or unicellular epiphytes or spore-producing lithophytes, e.g.Chamaesiphon.
3. Pleurocapsales: An endospore multiplier that includes heterotrichous and filamentous varieties without heterocysts, e.g.Pleurocapsa.
4. Nostocales: Nostocales are made up of filamentous non-heterotrichous types with heterocysts that reproduce via akinetes and hormogonia or by producing cysts,e.g. Nostoc and Anabaena.
5. Stigonematales: In contrast to trichomes, which have numerous rows of cells connected by pits, stigonematales feature heterotrichous filaments with genuine branches,e.g. westiella.