Firmicutes (phylum firmicutes) peptidoglycan cell wall containing a high amount, about 50% -80%, the cell wall thickness of 10-50nm, Gram-positive, bacteria have a spherical, rod-shaped or irregular rod, wire like or branched filaments, etc., the second division and reproduction, few can produce endospores (called spores) or exogenous spores (called conidia), which is capable of nutrition, there is no light nutrition.
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No. 2
Firmicutes (Firmicutes) is a large class of bacteria, the majority of Gram-positive. Minorities, such as the flexible membrane of bacteria Gang (Mollicutes) (eg mycoplasma), and can not be a lack of cell wall of Gram staining method, but also with the rest of Gram-positive bacteria, like the lack of a second layer of the cell membrane. The word originally Firmicutes include all Gram-positive bacteria, but now includes only the low G+ C content Gram-positive bacteria, while high G+ C content were classified as Actinobacteria (Actinobacteria). Firmicutes showed spherical or rod. Firmicutes can produce many endospores, which can resist dehydration and extreme environments. Can be found in many environments endogenous spores, bacteria can produce a lot of famous spores. There is a class Firmicutes, solar energy can be produced by bacteria Branch photosynthesis. Firmicutes are divided into three classes: anaerobic Clostridium classes, facultative or obligate aerobic bacillus classes, and no bacteria cell walls flexible membrane Gang. Before phylogenetic tree shows and series or two types of complex system, so their classification for further study. The famous Firmicutes genus include: Bacillus Gang: Bacillus (Bacillus) Listeria (Listeria) staphylococci (Staphylococcus) Enterococcus (Enterococcus) Lactobacillus (Lactobacillus) Lactococcus (Lactococcus) Leuconostoc (Leuconostoc) chain Lactococcus (Streptococcus) Clostridium Gang: Acetobacter (Acetobacterium) Clostridium (Clostridium) excellent genus (Eubacterium) Sun genus (Heliobacterium) mouse genus (Sporomusa) flexible membrane Gang Mycoplasma bacteria (Mycoplasma) Lo original body is (Spiroplasma) Ureaplasma (Ureaplasma) Erysipelothrix (Erysipelothrix)
Bacilli