Chapter 2 Prokaryotic Microorganisms
Chapter 2 Prokaryotic Microorganisms
Purpose Predominate basic concepts of the prokaryotic microorganism. Study the basic form,cell structure, reproduction method and cultural characteristics of primary prokaryotic microorganisms. Comprehend the close relation between each kind of prokaryotic microorganism and humanity production and our life
Purpose Predominate basic concepts of the prokaryotic microorganism. Study the basic form, cell structure, reproduction method and cultural characteristics of primary prokaryotic microorganisms. Comprehend the close relation between each kind of prokaryotic microorganism and humanity production and our life
What is the prokaryotic microorganism? It is an single-celled organism which doesn't have a nuclear membrane outside the cell nucleus and only has the bare DNA called as the nuclear area.It is entitled the generalized bacterium. Main sorts of the prokaryotic microorganism According to shape characteristic:bacteria (narrow sense),actinomycete cyanobacteria ,mycoplasma ,ricket tsia chlamydia and spirochete. According to physiological and biochemical Indices and molecular biological characteristics true bacteria and Archaeum
What is the prokaryotic microorganism? It is an single-celled organism which doesn’t have a nuclear membrane outside the cell nucleus and only has the bare DNA called as the nuclear area. It is entitled the generalized bacterium. Main sorts of the prokaryotic microorganism ： According to shape characteristic: bacteria (narrow sense),actinomycete ,cyanobacteria ,mycoplasma ,ricket tsia ,chlamydia and spirochete. According to physiological and biochemical Indices and molecular biological characteristics :true bacteria and Archaeum
Section 1 Bacteria Bacteria (narrow sense)is a kind of procaryote.Its special characters are that thin and short cell,simple structure,tough cell wall,fissiparity of two parts and stronger hydrophily trait
Section 1 Bacteria Bacteria (narrow sense) is a kind of procaryote. Its special characters are that thin and short cell, simple structure, tough cell wall, fissiparity of two parts and stronger hydrophily trait
Bacteric locations:aerosphere、water、soil、in the body of propagation Bacteric breed and quantity various kinds,high numbers The influence of bacteria to human society: 1.harmful influence:it's a kind of propagation pathogens which cause the putrescence of food and goods 2.wholesome effect:the manufacture of bacteria zymolytic products,agro-biological pesticide the product of bacterial manure,bacterial leaching microbial preparation,sewage management and so on
Bacteric locations: aerosphere 、water、soil、in the body of propagation Bacteric breed and quantity : various kinds, high numbers The influence of bacteria to human society: 1. harmful influence: it’s a kind of propagation pathogens which cause the putrescence of food and goods . 2.wholesome effect: the manufacture of bacteria zymolytic products, agro-biological pesticide ,the product of bacterial manure, bacterial leaching , microbial preparation, sewage management and so on
1.Modality and bulk of bacteria (1)Modality of bacteria Basic form of bacteria unit: globularity,rod shape and twist
I. Modality and bulk of bacteria （1） Modality of bacteria Basic form of bacteria unit: globularity、rod shape and twist
0 88 0 (h) (c) (d) (c (r) (a)monococcus (b)diplococcus (c)tetracoccus (d)sarcina (e)staphylococcus(f)streptococcus Different shapes coccus Different shapes bacilus (a)coccobacillus (b)single bacilus (c)diplobacillus (a) G6) (e) (d)streptobacillus Different shapes spirochete (a)spirillum (b)leptospira(c)vibrio 6
(a) monococcus (b) diplococcus (c) tetracoccus (d) sarcina (e) staphylococcus (f) streptococcus Different shapes coccus Different shapes bacilus (a) coccobacillus (b) single bacilus (c) diplobacillus (d) streptobacillus Different shapes spirochete (a) spirillum (b) leptospira (c) vibrio
cocci
cocci
bacilli spirillum
bacilli spirillum
Special types of bacteria
Special types of bacteria