RESISTANCE TO TOXINS FROM BACILLUS-THURINGIENSIS SUBSP KURSTAKI CAUSES MINIMAL CROSS-RESISTANCE TO BACILLUS-THURINGIENSIS SUBSP AIZAWAI IN THE DIAMONDBACK MOTH (LEPIDOPTERA, PLUTELLIDAE)

被引：100

作者：

TABASHNIK, BE ^{[1
]}

FINSON, N ^{[1
]}

JOHNSON, MW ^{[1
]}

MOAR, WJ ^{[1
]}

机构：

[1] AUBURN UNIV,DEPT ENTOMOL,AUBURN,AL 36849

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 1993年 / 59卷 / 05期

关键词：

D O I：

10.1128/AEM.59.5.1332-1335.1993

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Repeated exposure in the field followed by laboratory selection produced 1,800- to >6,800-fold resistance to formulations of Bacillus thuringiensis subsp. kurstaki in larvae of the diamondback moth, Plutella xylostella. Four toxins from B. thuringiensis subsp. kurstaki [CryIA(a), CryIA(b), CryIA(c), and CryIIA] caused significantly less mortality in resistant larvae than in susceptible larvae. Resistance to B. thuringiensis subsp. kurstaki formulations and toxins did not affect the response to CryIC toxin from B. thuringiensis subsp. aizawai. Larvae resistant to B. thuringiensis subsp. kurstaki showed threefold cross-resistance to formulations of B. thuringiensis subsp. aizawai containing CryIC and CryIA toxins. This minimal cross-resistance may be caused by resistance to CryIA toxins shared by B. thuringiensis subsp. kurstaki and B. thuringiensis subsp. aizawai

引用

页码：1332 / 1335

页数：4

共 31 条

[1]

BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3

[2] BACILLUS-THURINGIENSIS - INSECTS AND BEYOND [J].