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Degradation of iprodione by a novel strain Azospirillum sp. A1-3 isolated from Tibet

文献类型： 外文期刊

作者： Pan, Hu 1 ; Zhu, Beike 2 ; Li, Jin 3 ; Zhou, Ziqiong 4 ; Bu, Wenbin 2 ; Dai, Yanna 1 ; Lu, Xiangyang 2 ; Liu, Huhu 2 ; Tian, Yun 2 ;

作者机构： 1.Tibet Acad Agr & Anim Husb Sci, Inst Agr Prod Qual Stand & Testing Res, Lhasa, Peoples R China

2.Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Peoples R China

3.Changzhi Univ, Dept Life Sci, Changzhi, Peoples R China

4.Tibet Inst Agr & Anim Husb, Sch Food Sci, Nyingchi, Peoples R China

关键词： Azospirillum; novel taxa; iprodione; degradation pathway; bioremediation

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.2； 五年影响因子：6.2 ）

ISSN：

年卷期： 2023 年 13 卷

页码：

收录情况： SCI

摘要： A bacterial strain A1-3 with iprodione-degrading capabilities was isolated from the soil for vegetable growing under greenhouses at Lhasa, Tibet. Based on phenotypic, phylogenetic, and genotypic data, strain A1-3 was considered to represent a novel species of genus Azospirillum. It was able to use iprodione as the sole source of carbon and energy for growth, 27.96 mg/L (50.80%) iprodione was reduced within 108 h at 25 degrees C. During the degradation of iprodione by Azospirillum sp. A1-3, iprodione was firstly degraded to N-(3,5-dichlorophenyl)-2,4-dioxoimidazolidine, and then to (3,5-dichlorophenylurea) acetic acid. However, (3,5-dichlorophenylurea) acetic acid cannot be degraded to 3,5-dichloroaniline by Azospirillum sp. A1-3. A ipaH gene which has a highly similarity (98.72-99.92%) with other previously reported ipaH genes, was presented in Azospirillum sp. A1-3. Azospirillum novel strain with the ability of iprodione degradation associated with nitrogen fixation has never been reported to date, and Azospirillum sp. A1-3 might be a promising candidate for application in the bioremediation of iprodione-contaminated environments.

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