A UV tolerant mutant of Bacillus thuringiensis subsp. kurstaki producing melanin

Deepak Saxena, Eitan Ben-Dov, Robert Manasherob, Z. Barak, Sammy Boussiba, Arieh Zaritsky

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)25-30
Number of pages6
JournalCurrent Microbiology
Volume44
Issue number1
DOIs
StatePublished - Jan 1 2002

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Bacillus thuringiensis
Poisons
Melanins
Spores
Peptides

ASJC Scopus subject areas

  • Microbiology

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A UV tolerant mutant of Bacillus thuringiensis subsp. kurstaki producing melanin. / Saxena, Deepak; Ben-Dov, Eitan; Manasherob, Robert; Barak, Z.; Boussiba, Sammy; Zaritsky, Arieh.

In: Current Microbiology, Vol. 44, No. 1, 01.01.2002, p. 25-30.

Research output: Contribution to journalArticle

Saxena, D, Ben-Dov, E, Manasherob, R, Barak, Z, Boussiba, S & Zaritsky, A 2002, 'A UV tolerant mutant of Bacillus thuringiensis subsp. kurstaki producing melanin', Current Microbiology, vol. 44, no. 1, pp. 25-30. https://doi.org/10.1007/s00284-001-0069-6
Saxena, Deepak ; Ben-Dov, Eitan ; Manasherob, Robert ; Barak, Z. ; Boussiba, Sammy ; Zaritsky, Arieh. / A UV tolerant mutant of Bacillus thuringiensis subsp. kurstaki producing melanin. In: Current Microbiology. 2002 ; Vol. 44, No. 1. pp. 25-30.
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