A UV tolerant mutant of Bacillus thuringiensis subsp kurstaki producing melanin

被引：62

作者：

Saxena, D

Ben-Dov, E

Manasherob, R

Barak, Z

Boussiba, S

Zaritsky, A

机构：

[1] Ben Gurion Univ Negev, Dept Life Sci, IL-84105 Beer Sheva, Israel

[2] Coll Judea & Samaria, Inst Res, IL-44837 Ariel, Israel

[3] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Microalgal Biotechnol Lab, IL-84990 Sede Boqer, Israel

来源：

CURRENT MICROBIOLOGY | 2002年 / 44卷 / 01期

关键词：

D O I：

10.1007/s00284-001-0069-6

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

A UV-resistant mutant (Bt-m) of Bacillus thuringiensis subsp. kurstaki, producing a dark brown pigment, identified as melanin, was studied. Bt-m had higher larvicidity against Heliothis armigera than its parent. Survival of Bt-m spores and their insecticidal activity to irradiation at 254 nm and 366 nm were higher than those of the parent. The only toxic polypeptide produced by Bt-m was Cry1Ac (130 kDa); it lost cry1Aa, cry2Aa, and cry2Ab.

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页码：25 / 30

页数：6

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