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Ecological strategies of biological and chemical control agents on wildfire disease of tobacco (Nicotiana tabacum L.)

BACKGROUND: To investigate the ecological effects of chemical and biological control methods on tobacco wildfire disease, a plot field experiment was conducted to compare the control efficiency and mechanisms of a chemical pesticide (kasugamycin wettable powder, KWP) and a biological control agent (...

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Autores principales: Liu, Tianbo, Gu, Yabing, Zhou, Zhicheng, Liu, Zhenghua, Yin, Huaqun, Qin, Chong, Yi, Tuyong, Tao, Jiemeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8212473/
https://www.ncbi.nlm.nih.gov/pubmed/34139992
http://dx.doi.org/10.1186/s12866-021-02237-8
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author Liu, Tianbo
Gu, Yabing
Zhou, Zhicheng
Liu, Zhenghua
Yin, Huaqun
Qin, Chong
Yi, Tuyong
Tao, Jiemeng
author_facet Liu, Tianbo
Gu, Yabing
Zhou, Zhicheng
Liu, Zhenghua
Yin, Huaqun
Qin, Chong
Yi, Tuyong
Tao, Jiemeng
author_sort Liu, Tianbo
collection PubMed
description BACKGROUND: To investigate the ecological effects of chemical and biological control methods on tobacco wildfire disease, a plot field experiment was conducted to compare the control efficiency and mechanisms of a chemical pesticide (kasugamycin wettable powder, KWP) and a biological control agent (BCA) through high-throughput sequencing of bacterial 16S rRNA genes. RESULTS: The results showed that the BCA displayed better performance in decreasing the disease index and morbidity of tobacco than the chemical pesticide. By monitoring the endophytic community within tobacco leaves, it was found that the control effects of these two methods might be mediated by different changes in the endophytic bacterial communities and community assembly patterns. The application of either method decreased the taxonomic diversity of the leaf endophytic community. Compared to the BCA, KWP showed a more significant effect on the endophytic community structure, while the endophytic community treated with the BCA was able to return to the original state, which presented much lower disease infection. The disease control efficiency of KWP and BCA treatments might be achieved by increasing the abundance of Sphingomonas and Streptophyta, respectively. Furthermore, an analysis of the ecological processes in community assembly indicated that the BCA strengthened the homogeneous and variable selection, while KWP enhanced ecological drift. CONCLUSIONS: The results suggested different control mechanisms between KWP and BCA treatments, which will help in developing diverse ecological strategies for plant disease control. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12866-021-02237-8.
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spelling pubmed-82124732021-06-22 Ecological strategies of biological and chemical control agents on wildfire disease of tobacco (Nicotiana tabacum L.) Liu, Tianbo Gu, Yabing Zhou, Zhicheng Liu, Zhenghua Yin, Huaqun Qin, Chong Yi, Tuyong Tao, Jiemeng BMC Microbiol Research BACKGROUND: To investigate the ecological effects of chemical and biological control methods on tobacco wildfire disease, a plot field experiment was conducted to compare the control efficiency and mechanisms of a chemical pesticide (kasugamycin wettable powder, KWP) and a biological control agent (BCA) through high-throughput sequencing of bacterial 16S rRNA genes. RESULTS: The results showed that the BCA displayed better performance in decreasing the disease index and morbidity of tobacco than the chemical pesticide. By monitoring the endophytic community within tobacco leaves, it was found that the control effects of these two methods might be mediated by different changes in the endophytic bacterial communities and community assembly patterns. The application of either method decreased the taxonomic diversity of the leaf endophytic community. Compared to the BCA, KWP showed a more significant effect on the endophytic community structure, while the endophytic community treated with the BCA was able to return to the original state, which presented much lower disease infection. The disease control efficiency of KWP and BCA treatments might be achieved by increasing the abundance of Sphingomonas and Streptophyta, respectively. Furthermore, an analysis of the ecological processes in community assembly indicated that the BCA strengthened the homogeneous and variable selection, while KWP enhanced ecological drift. CONCLUSIONS: The results suggested different control mechanisms between KWP and BCA treatments, which will help in developing diverse ecological strategies for plant disease control. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12866-021-02237-8. BioMed Central 2021-06-17 /pmc/articles/PMC8212473/ /pubmed/34139992 http://dx.doi.org/10.1186/s12866-021-02237-8 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Liu, Tianbo
Gu, Yabing
Zhou, Zhicheng
Liu, Zhenghua
Yin, Huaqun
Qin, Chong
Yi, Tuyong
Tao, Jiemeng
Ecological strategies of biological and chemical control agents on wildfire disease of tobacco (Nicotiana tabacum L.)
title Ecological strategies of biological and chemical control agents on wildfire disease of tobacco (Nicotiana tabacum L.)
title_full Ecological strategies of biological and chemical control agents on wildfire disease of tobacco (Nicotiana tabacum L.)
title_fullStr Ecological strategies of biological and chemical control agents on wildfire disease of tobacco (Nicotiana tabacum L.)
title_full_unstemmed Ecological strategies of biological and chemical control agents on wildfire disease of tobacco (Nicotiana tabacum L.)
title_short Ecological strategies of biological and chemical control agents on wildfire disease of tobacco (Nicotiana tabacum L.)
title_sort ecological strategies of biological and chemical control agents on wildfire disease of tobacco (nicotiana tabacum l.)
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8212473/
https://www.ncbi.nlm.nih.gov/pubmed/34139992
http://dx.doi.org/10.1186/s12866-021-02237-8
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