Cyanobacteria

is cyanobacteria, also known as blue-green algae. It is one of the most primitive and oldest algae plants. Its main features are: simple plant body, single cells, all kinds of groups and silky bodies; Because of this, most scholars in modern times advocate the division of cyanobacteria from the plant world, and the original core of bacteria and so on, stand alone as the original nuclear biological world. Cyanobacteria do not have foliophyll, mitochondrials, gorsyl, endosomes and liquid bubbles and other cytomegi, containing colorophyll a
, no colorophyll
b
, containing several types of citrine and carotene, but also contains algal bile (is the general term for algal erythrin, algal cyanobacteria and cyanocybin). Generally speaking, where the amount of
a
and algal cyanotin is large, the cells are mostly blue-green. Similarly, there are a few species containing more algal erythrin, algae are red, such as a kind of cyanobacteria born in the Red Sea, called red sea bouquet algae, because it contains a lot of algal erythrin, algae red, and reproduction is fast, so that the sea water is also red, the Red Sea is named for it. Although cyanobacteria do not have chlorophytes, but in the electroscopic visible cytoples there are many photogasing membranes, called sacs, all kinds of photochromes attached to it, photocodychrome process in this process. The cell walls of cyanobacteria and the cell walls of bacteria have similar chemical compositions, mainly viscous peptides; One is for nutritional reproduction, including direct cell division (i.e., cleavage), group rupture and filamental production of algae, and the other is for certain cyanobacteria can produce endogeneian spores or exogenetic spores, etc., for asexual reproduction. No real sexual reproduction of cyanobacteria has been found. Cyanobacteria appeared on Earth about
35
to
33
billion years ago, and is now known to be about
1500
species, widely distributed throughout the world, but mainly freshwater production. There are a few hot springs that can live from
60
to
85
degrees Celsius, some species and
fill
, moss, ferns and naked plants. There are many cyanobacteria that can directly fix nitrogen in the atmosphere to increase soil fertility and increase crop yields, and some cyanobacteria are food for people, such as the famous hair dish and ordinary candina (ground wood ear). But in some nutrient-rich water bodies, some cyanobacteria often multiply in large numbers in the summer, and form a layer of blue-green and smelly floats on the surface of the water, called "water blooms", and even some species will produce some toxins, exacerbating the deterioration of water quality, fish and other aquatic animals, as well as people and animals are very harmful, serious will cause fish death.