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Effects of UV‐light on Bacillus sphaericus and its protection by chemicals
Author(s) -
Çökmüs Cumhur,
HakkiSayar A.,
Saçilik Sefa C.,
Osmanağaoğlu Özlem,
Berber Ísmet
Publication year - 2000
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/1521-4028(200008)40:4<215::aid-jobm215>3.0.co;2-h
Subject(s) - bacillus sphaericus , microbiology and biotechnology , chemistry , biology , toxicology , bacillales , bacteria , bacillus subtilis , genetics
Although when UV‐irradiated seven most toxic strains of Bacillus sphaericus lost their viabilities between 2.5–4.5 min, their larvicidal activity was protected for longer periods. Benzaldehyde, cin‐namaldehyde, salicylaldehyde, methylene blue and yeast extract showed good protective effect for spore viability and larvicidal activity from UV inactivation in B. sphaericus . This protective effect has also been confirmed by SDS‐PAGE analyses whereby the 42 kDa and 51 kDa toxic proteins bands did not disappear following UV treatment.