Rhizosphere bacteria show a stronger response to antibiotic-based biopesticide than to conventional pesticides

文献类型： 外文期刊

第一作者： Xie, Jiabei

作者： Xie, Jiabei;Lv, Zhaoyang;Ge, Beibei;Wicaksono, Wisnu Adi;Berg, Gabriele;Cernava, Tomislav;Berg, Gabriele;Berg, Gabriele;Cernava, Tomislav

作者机构：

关键词： Agrochemicals; Wuyiencin; Off-Target Effects; Plant Microbiome; Bacterial Communities

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：13.6； 五年影响因子：12.7 ）

ISSN： 0304-3894

年卷期： 2023 年 458 卷

页码：

收录情况： SCI

摘要： The plant microbiota can substantially contribute to various functions related to host health, fitness, and productivity. Therefore, maintaining the integrity of the microbiota is beginning to be seen as a crucial factor in modern agriculture. Here, we evaluated the effects of two chemical pesticides (azoxystrobin and carbendazim) and an antibiotic-based biopesticide (wuyiencin) on the rhizosphere microbiome of tomato plants. It was found that all treatments resulted in changes in the bacterial community structure to varying degrees. The most pronounced changes were observed with the biopesticide, which resulted in an enrichment of Streptomyces in the microbiome. In contrast, the relative abundance of Actinobacteria decreased in samples that were treated with low and high dosages of carbendazim. Clostridia were enriched after the applications of azoxystrobin and wuyiencin. When functioning of the microbiome was assessed, it was shown that genes encoding multidrug efflux pumps and ABC transporters related to nutrient uptake were enriched. This enrichment is likely to overcome potentially negative effects linked to the exposure to the employed substances. The study provides new insights into the potential of different pesticides to modulate native plant microbiomes, and thus highlights the importance to include such evaluations when new active agents are developed.

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