Biochemical alterations in Bradyrhizobium sp USDA 3187 induced by the fungicide Mancozeb

被引：7
|
作者：
Fabra, A [1 ]
Angelini, J [1 ]
Donolo, A [1 ]
Permigiani, M [1 ]
Castro, S [1 ]
机构：
[1] Univ Nacl Rio Cuarto, Fac Ciencias Exactas Fis Quim & Nat, RA-5800 Rio Cuarto, Argentina
来源：
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY | 1998年 / 73卷 / 03期
关键词：
Bradyrhizobium sp; fungicide; Mancozeb;
D O I：
10.1023/A:1000987524112
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
We have previously shown that fungicide Mancozeb causes a 50% decrease in Bradyrhizobium sp USDA 3187 growth rate and affects the bacteria-root symbiotic interaction. In order to elucidate the fungicide toxicity mechanism we determined the effects of Mancozeb on cell chemical composition, glutathione (GSH) content (molecule involved in the detoxification process), glutathione S-transferase (GST) activity and on polyamine, exopolysaccharides, capsular polysaccharides and lipopolysaccharides. Mancozeb produced biochemical alterations in membrane composition, polysaccharides and polyamines. In spite of the increment of GSH content and GST activity, they are not enough to prevent the growth diminution.
引用
收藏
页码：223 / 228
页数：6
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