Bacillus thuringiensis - Wikipedia
Bacillus thuringiensis (or Bt) is a gram-positive, soil-dwelling bacterium, the most commonly used biological pesticide worldwide. B. thuringiensis also occurs naturally in the gut of caterpillars of various types of moths and butterflies , as well on leaf surfaces, aquatic environments, animal feces, insect-rich environments, flour mills and ...
苏云金杆菌（包括许多变种的一类产晶体的芽孢杆菌）_百度百科
苏云金杆菌即苏云金芽孢杆菌（Bacillus thuringiensis，Bt）被发现已有100年的历史，其在害虫防治中发挥了巨大的作用，是近年来研究最深入、开发最迅速、应用最广泛的微生物杀虫剂。
Bacillus thuringiensis (Bt) | Britannica
Bacillus thuringiensis (Bt), soil-dwelling bacterium that naturally produces a toxin that is fatal to certain herbivorous insects. The toxin produced by Bacillus thuringiensis (Bt) has been used as an insecticide spray since the 1920s and is commonly used in organic farming.
Bacillus thuringiensis: A genomics and proteomics perspective
Bacillus thuringiensis (Bt) is a unique bacterium in that it shares a common place with a number of chemical compounds which are used commercially to control insects important to agriculture and public health.
Bacillus thuringiensis - Cornell University
2015年2月25日 · Bacillus thuringiensis (Bt) is a bacterium that was first identified by S. Ishiwata in 1901 in Japanese silkworms presenting flacherie, or flaccid disease. It was later scientifically described and named by E. Berliner in Thüringen, Germany (Knowles 1994) .
Bacillus Thuringiensis - an overview | ScienceDirect Topics
Bacillus thuringiensis (Bt) is a rod-shaped, spore-forming, gram-positive, and aerobic bacteria that produces a protein crystal (the Bt δ-endotoxin) during bacterial spore formation that is capable of causing lysis of gut cells when consumed by susceptible insects (Gill et al., 1992).
Bacillus thuringiensis - microbewiki - Kenyon College
2011年4月22日 · B. thuringiensis (Bt) is a gram-positive, soil-dwelling, spore-forming, rod-shaped bacteria. It is approximately 1 µm in width and 5 µm in length. [3] [11] It grows at body temperature and produces a diamond-shaped crystal from its crystal proteins (Cry proteins) and uses it to fend off insects, predators, and other pathogens. [2]
Bacillus thuringiensis, a remarkable biopesticide: from lab to …
2022年1月1日 · The entomopathogenic bacterium Bacillus thuringiensis (Bt) has been studied widely and intensively in terms of isolation and transmission, characterization, mode of action, improved formulations, and compatibility with natural enemies and Bt crops.
Bacillus thuringiensis Characterization: Morphology, Physiology ...
2017年6月11日 · Among prokaryotes, bacteria of the genus Bacillus (family Bacillaceae) have been used in the microbial control of pests. In this genus, the species Bacillus thuringiensis (Bt) is distinguished by its biopesticide potential. Bt was discovered by Ishiwatta in 1902 in reared Bombyx mori L. (Lepidoptera, Bombycidae) in Japan.
Bacillus Thuringiensis - an overview | ScienceDirect Topics
Several strains of the bacterium have been identified with activity against a range of insects including cabbage looper, tobacco budworm, mosquito, black fly, and more recently nematodes, ants and fruit flies. While the bacterium appears an ideal insecticide (having a toxicity 300 times greater than synthetic pyrethroids), it requires careful use.