Description
[product name] Bacillus subtilis powder
[product appearance] gray white powder, 100-200 mesh
& nbsp;& nbsp;& nbsp; Bacillus subtilis is a kind of Bacillus. Single cell 0.7 ~ 0.8-times; 2 ~ 3 microns, evenly colored. No capsule, surrounded by flagella, capable of movement. Gram positive bacteria, spores 0.6 ~ 0.9× 1.0 ~ 1.5 μ m, oval to columnar, located in the center of the cell or slightly biased, and the cell does not expand after spore formation. The surface of the colony is rough and opaque, dirty white or yellowish. When it grows in liquid medium, it often forms wrinkles. Aerobic bacteria. Protein, various sugars and starch can be used to decompose tryptophan to form indole. It is widely used in genetic research. The synthesis pathway and regulation mechanism of purine nucleotides of this bacterium are clear. It is widely distributed in soil and rotten organic matter, and is easy to reproduce in the soaking juice of withered grass, so it is named< br />
& nbsp;& nbsp;& nbsp; Some strains are alpha- An important producer of amylase and neutral protease; Some strains have strong enzyme systems that degrade nucleotides, so they are often used as parent strains for breeding nucleoside producing strains or preparing 5'- Strains of nucleotidase< br />
[action mechanism]
& nbsp;& nbsp;& nbsp; The active substances produced by Bacillus subtilis during its growth, such as subtilisin, polymyxin, nystatin, bacitracin and so on, have obvious inhibitory effects on pathogenic bacteria or endogenous opportunistic pathogens< br />
[application scope]
& nbsp;& nbsp;& nbsp;& nbsp;& nbsp;& nbsp;& nbsp; Bacillus subtilis is a Biocontrol Bacterium. It is very effective and stable in crops. Bacillus subtilis is produced by artificial mutagenesis and deep liquid fermentation. Bacillus subtilis is non-toxic and harmless to humans and animals, and does not pollute the environment. It can produce a variety of antibiotics and enzymes, and has broad-spectrum antibacterial activity and strong stress resistance. Bacillus subtilis showed good disease control effect on cotton, wheat, pepper, tomato, corn, fruit trees and other crops< br />
[action characteristics]
& nbsp;& nbsp;& nbsp; 1. Bacillus subtilis has competitive advantages:
& nbsp;& nbsp;& nbsp; After being applied to the soil, Bacillus subtilis competes with other microorganisms for oxygen and nutrients, which is competitive and exclusive. It forms a dominant biological population in the roots of crops. In this way, Bacillus subtilis can effectively prevent the invasion of other bacteria, obtain the nutrition of surrounding bacteria, inhibit the growth of pathogenic bacteria, and play the role of disease prevention and disease resistance like a vaccine< br />
& nbsp;& nbsp;& nbsp; 2. Biological antagonism of Bacillus subtilis:
& nbsp;& nbsp;& nbsp; During the growth process, Bacillus subtilis can metabolize and secrete bacteriocin (subtilis, polymyxin, nystatin, etc.), lipopeptide compounds, organic acids, etc. these metabolites can effectively inhibit the growth of pathogenic bacteria or dissolve pathogenic bacteria, so as to kill bacteria and have high resistance to continuous cropping. Chitinase antibacterial protein secreted by Bacillus subtilis has a strong inhibitory effect on a variety of plant pathogens< br />
& nbsp;& nbsp;& nbsp; Lipopeptide compounds secreted by Bacillus subtilis can be used to control wheat powdery mildew, rice blast, scab, sheath blight, anthracnose, cucumber downy mildew, tomato bacterial wilt, gray mold, and other plant diseases< br />
& nbsp;& nbsp;& nbsp; 3. Bactericidal and bacteriolytic effect of Bacillus subtilis:
& nbsp;& nbsp;& nbsp; Bacillus subtilis can grow on the mycelium of the pathogen, decompose and consume the pathogen, break the mycelium and disintegrate the cells, so that the pathogen can not further infect the plant
& nbsp;& nbsp;& nbsp; 4. Bacillus subtilis can significantly promote plant growth
& nbsp;& nbsp;& nbsp; At the same time of disease prevention and resistance, Bacillus subtilis can also induce crops to produce indoleacetic acid and other substances, improve the level of crop growth stimulants, and thus promote crop growth and reproduction< br />
& nbsp;& nbsp;& nbsp; 5. Bacillus subtilis can induce plant resistance
& nbsp;& nbsp;& nbsp; Bacillus subtilis can enhance the disease resistance of plants by inducing their own disease resistance mechanism, and has the effect of inducing plant disease resistance. Bacillus subtilis activates the natural defense mechanism of plants to protect plants from pathogens and reduce harm, which is an important aspect of Bacillus subtilis as a Biocontrol Bacterium< br />
[content standard] 200, 500, 1000, 2000cfu / g
[method of use] microbial feed is made by mixing and granulating with excipients, or by rolling or directly mixing in the later stage< br />
[scope of application] microbial feed manufacturers and ecological farms
[package specification] 25kg/ bag
[shelf life] it is stored indoors at normal temperature, and the shelf life is 24 months
