Rhizosphere bacteria show a stronger response to antibiotic-based biopesticide than to conventional pesticides
Rhizosphere bacteria show a stronger response to antibiotic-based biopesticide than to conventional pesticides
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.
Agrochemicals, Bacterial Communities, Off-Target Effects, Plant Microbiome, Wuyiencin
Xie, Jiabei
a4da4480-5efd-4f37-af64-2d2398c1206c
Wicaksono, Wisnu Adi
61c631cb-96eb-420f-b6a2-23ef92918892
Lv, Zhaoyang
583179f7-2906-43ee-8999-ac5512564c2c
Berg, Gabriele
5bc6c28c-525d-4f45-b167-5af82c888c6d
Cernava, Tomislav
a13d65aa-2529-479a-ba90-69ebbc4ba07f
Ge, Beibei
ea8ee1ea-3ea0-4f1d-b0a7-2f58aaedca1f
15 September 2023
Xie, Jiabei
a4da4480-5efd-4f37-af64-2d2398c1206c
Wicaksono, Wisnu Adi
61c631cb-96eb-420f-b6a2-23ef92918892
Lv, Zhaoyang
583179f7-2906-43ee-8999-ac5512564c2c
Berg, Gabriele
5bc6c28c-525d-4f45-b167-5af82c888c6d
Cernava, Tomislav
a13d65aa-2529-479a-ba90-69ebbc4ba07f
Ge, Beibei
ea8ee1ea-3ea0-4f1d-b0a7-2f58aaedca1f
Xie, Jiabei, Wicaksono, Wisnu Adi, Lv, Zhaoyang, Berg, Gabriele, Cernava, Tomislav and Ge, Beibei
(2023)
Rhizosphere bacteria show a stronger response to antibiotic-based biopesticide than to conventional pesticides.
Journal of Hazardous Materials, 458, [132035].
(doi:10.1016/j.jhazmat.2023.132035).
Abstract
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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Accepted/In Press date: 9 July 2023
Published date: 15 September 2023
Additional Information:
Funding Information:
We acknowledge the financial support from National Natural Science Foundation of China (Grant No. 32172493 and 32050410297 ).
Publisher Copyright:
© 2023 Elsevier B.V.
Keywords:
Agrochemicals, Bacterial Communities, Off-Target Effects, Plant Microbiome, Wuyiencin
Identifiers
Local EPrints ID: 481229
URI: http://eprints.soton.ac.uk/id/eprint/481229
ISSN: 0304-3894
PURE UUID: 035d14c4-2d9a-4523-a135-881ab558279f
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Date deposited: 21 Aug 2023 16:31
Last modified: 17 Mar 2024 04:18
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Contributors
Author:
Jiabei Xie
Author:
Wisnu Adi Wicaksono
Author:
Zhaoyang Lv
Author:
Gabriele Berg
Author:
Tomislav Cernava
Author:
Beibei Ge
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