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10.25100/socolen.v16i2.10156
Submitted: 24-06-2020
Published: 15-07-1990

A NEW ISOLATION OF Bacillus thuringiensis FROM COLOMBIA, TOXIC FOR MOSQUITO LARVES

Corporación para Investigaciones Biológicas (CIB)
Corporación para Investigaciones Biológicas (CIB)
Corporación para Investigaciones Biológicas (CIB)
Corporación para Investigaciones Biológicas (CIB)

How to Cite

1.
ORDUZ S, CORREA M, MONTOYA AE, ROJAS W. A NEW ISOLATION OF Bacillus thuringiensis FROM COLOMBIA, TOXIC FOR MOSQUITO LARVES. Rev. Colomb. Entomol. [Internet]. 1990 Jul. 15 [cited 2026 Oct. 24];16(2):28-32. Available from: https://revistacolombianaentomologia.univalle.edu.co/index.php/SOCOLEN/article/view/10156
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Abstract

During a survey conducted in Colom­bia, an isolate of Bacillus thuringien­sis showed toxicity towards Culex quinquefaciatus larvae. Parasporal crystals were spherical or irregular in shape and showed a great degree of similarity with those produced by the reference strain B. thuringiensis subsp. israelensis. Supernatant fraction of the whole culture was not toxic. Oxidase, catalase, urease, argynine decarboxyla­se, amylase, lecithinase, acetil-methil-. carbinol and gelatinase production was positive. Hemolysis on sheep blood agar was "a" type. Production of heat stable B-exotoxin was negative. The isolate CIB-131 showed natural resistance to several antibiotics and was sensible to cephoperazone,cephalotin, nalidixic acid, and trimetoprin sulfa­methoxazole.

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How to Cite

1.
ORDUZ S, CORREA M, MONTOYA AE, ROJAS W. A NEW ISOLATION OF Bacillus thuringiensis FROM COLOMBIA, TOXIC FOR MOSQUITO LARVES. Rev. Colomb. Entomol. [Internet]. 1990 Jul. 15 [cited 2026 Oct. 24];16(2):28-32. Available from: https://revistacolombianaentomologia.univalle.edu.co/index.php/SOCOLEN/article/view/10156
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