Encyclopedia > Bacillus thuringiensis

  Article Content

Bacillus thuringiensis

Bacillus thuringiensis is an aerobic spore-forming bacterium that lives in the caterpillars of some moths and butterflies. It seems that it is the same organism as Bacillus cereus, a soil bacterium, and Bacillus anthracis, the cause of anthrax; the three organisms only differ in their plasmids.

Bacillus thuringiensis produces toxin crystals that are lethal to the caterpillars, but considered harmless to most other organisms, including humans. Therefore, the bacterium and its toxin are used in crop protection. This is done by spraying plants with the bacterium itself, or with an insecticide that contains the bacterial spores. Another way to protect plants is to create transgenic plants that carry the gene for the bacterial toxin, as it is currently done in the USA and Australia for cotton (Bt-cotton) and maize (Bt-Maize).



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
242

... 2nd century - 3rd century - 4th century Decades: 190s 200s 210s 220s 230s - 240s - 250s 260s 270s 280s 290s Years: 237 238 239 240 241 - 242 - 243 244 245 246 ...

 
 
 
This page was created in 28.7 ms