Breeding of Bacillus tkuringiensis (Bt) with High Insecticidal Activity to Spodoptera exigua
- VernacularTitle:对甜菜夜蛾高毒苏云金芽孢杆菌菌株的选育
- Author:
Ji-Xing WU
;
Zai-Er CHEN
;
Zhi-Gang ZHANG
;
- Publication Type:Journal Article
- Keywords:
Bacillus thuringiensis Berliner (Bt), Spodoptera exigua, High insecticidal activity, Breeding.
- From:
Microbiology
1992;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
By the breeding model of physics mutagenests (60Co,UV light) and re-strong in the body of insects, We obtained a Bt strain Bt99985 with high insecticidal activity. The shake flask and 40t tank fermentation tests showed that, this strain showed special activity against Spodoptera exjgua, Comparing with original Bt strain: 93005, CK strain: HD-1-580 and GC-91, the value of potency increased respectively by 429%, 655% and 114% in shake flask test. Comparing with GC-91, the value of potency increased by 180% in 40t tank fermentation test.
