CLOSTRIDIUM-BIFERMENTANS SEROVAR MALAYSIA - SPORULATION, BIOGENESIS OF INCLUSION-BODIES AND LARVICIDAL EFFECT ON MOSQUITO

被引：17

作者：

CHARLES, JF ^{[1
]}

NICOLAS, L ^{[1
]}

SEBALD, M ^{[1
]}

DEBARJAC, H ^{[1
]}

机构：

[1] INST PASTEUR, UNITE ANAEROBIES, F-75724 PARIS 15, FRANCE

来源：

RESEARCH IN MICROBIOLOGY | 1990年 / 141卷 / 06期

关键词：

Anopheles stephensi; Clostridium bifermentans; Larvicidal activity; Parasporal inclusions; Spore appendages; Sporulation; Ultrastructure;

D O I：

10.1016/0923-2508(90)90066-Y

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Sporulation of Clostridium bifermentans serovar malaysia, which has a larvicidal activity towards mosquitoes, was examined by electron microscopy. Parasporal inclusion bodies lacking a crystalline structure were first dected at t5 (5 h after the end of exponentional growth). Also, the presence of "brush-bottle"-like appendages appearing first at t5 was noted; these remained attached to the spores when released after sporangium lysis. Larvicidal activity assayed on Anopheles stephensi larvae appeared at t0 and increased rapidly to a maximum between t5 and t8. However, a decrease in bacterial toxicity occured with sporangium lysis. © 1990.

引用

页码：721 / 733

页数：13

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