Introduction and application of Bacillus spores.

Introduction to Bacillaceae, a genus of Bacillus spores, numbered Strain Number ACCC 11060.
0.7 to 0.8 x 2 to 3 microns of individual cells, evenly colored.
film-free, weekly whip hair, can move.
Gram-positive bacteria, spores 0.6 to 0.9 x 1.0 to 1.5 microns, elliptical to column, located in the center of the bacteria or slightly partial, spore formation after the bacteria do not puff.
the surface of the bacteria is rough and opaque, white or slightly yellowish, growing in liquid medium, often forming wrinkled , oxygen-demanding bacteria.
proteins, sugars and starches to break down tryptophan to form pyridine.
as early as 1835, Ehrenberg described "Vibrio subtilis" as the now-familiar "dead grass spores", which were officially named by Cohn in 1872 and are now a model strain of Bacillaceae, one of the earliest bacteria ever found in humans.
, the application of B acillus Subtilis is an important alpha-amyloid production bacteria.
As a safe, efficient, versatile and promising microbial species, Bacillus spores have been widely used in industry, agriculture, medicine, health, food, animal husbandry, aquaculture and scientific research.
with the development of economy and the improvement of scientific research level, the dead grass spores will be closer to people's daily life, it will certainly be a very important industrial microbial species more and more people's general concern and favor.
(1) The application of Bacillus spores in industrial enzyme production Industrial enzyme production is an important part of industrial microbial fermentation.
is one of the most widely used strains of industrial enzymes today, according to incomplete statistics, the enzyme produced by Bacillus spores accounts for 50% of the entire enzyme market.
Because of its high yield, variety, safety and environmental protection, it is widely used in modern industrial production to produce bacteria, and its fermentation production enzymes have played a very important role in food, feed, washing, textile, leather, paper and medicine.
(2) The application of Bacillus spores in the field of biological control As one of the plant disease-resistant bacteria, with strong disease prevention effect in the United States so far, 4 strains of dried grass spores have been commercialized by the Environmental Protection Agency or limited commercial production application license, such as the United States A The company developed SerenadeTM, a living bacterial agent, using the QST713 strain of Bacillus spores, and in 2000 it was registered with the U.S. Environmental Protection Agency (EPA) to combat white powder disease, frost dew disease, epidemic disease, gray mold and other diseases in a variety of crops.
China's use of dead grass spores to prevent and control plant diseases of applied research has also reached the world's advanced level, has been successfully developed and put into production of commodity preparations have sub-bao, hundred resistance, Mai Fengning, tinging and other products.
(3) Bacillus spoores are a good test material for microbiology and molecular biology, and as a genetically engineered subject bacteria, weed spores can express nearly 200 protein genes from primary and endogenous biological sources, and are at the center of both production and genomic and physical mapping.
(4) The application of Bacillus spores in the field of microbial additives Ischable spores is a permitted feed microbial species in China, because it is non-toxic, harmless, often made into microbial additives, used to improve the intestinal function of animals, promote animal growth and prevent disease.
Sporine spores in the preparation of the presence of spores, spores into the animal intestine, in the upper part of the intestine can quickly resuscitate and secrete highly active proteases, lipases, amylases, help to degrade complex carbohydrates in plant feed, the production of antagonist-resistant intestinal pathogenic bacteria, such as peptides, play a role in antibacterial and preventive effects.
addition, Bacillus spores are aerobic bacteria, which can cause anaerobic environment by consuming oxygen in the intestines, promote the reproduction of anaerobic bacteria in the intestines, and maintain the ecological balance of the intestines.
(5) The application of Bacillus bacillus spoulosomia in the field of medical and health research has proved that the live bacterial preparation of Bacillus spores can be used as an oral solution for the treatment of enteritis, bronchitis and diarrhea and other diseases, but also used to prevent and treat infection of the burn surface.
(6) The application of dried grass spores in aquaculture has started late, because it can secrete proteases and other enzymes and antibiotics, so that the pool floor accumulated a large number of residual bait, excretion waste, animal and plant residues and harmful gases (ammonia, hydrogen sulfide, etc.), so that it is first broken down into small molecules (polypeptides, advanced fatty acids, etc.) After decomposition into smaller molecules of organic matter, and eventually decomposed into carbon dioxide, nitrates and sulfates, effectively reduce the COD, BOD in water, so that the water amino nitrogen (NH3-N), nitrous oxide (NO2-N) and sulphides concentration decreased, thus effectively improving water quality, but also for single-cell algae-based phytophytophytophytophytophyloclics to provide nutrients and promote reproduction.
The photocomlithic use of phytophytophytozoic plants also provides oxygen for the breathing and decomposition of organic matter in benign aquatic animals in the pool, thus forming a virtuous ecological cycle in the cultured water bodies, and the various enzymes and antibiotics they secrete can inhibit the growth of other bacteria, thereby reducing or even eliminating pathogens in aquaculture animals.
more and more studies have found that Bacillus spores can play an important role in aquaculture.
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