Bacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations

Abstract Plant-parasitic nematodes wreak havoc on crops by root parasitism worldwide. An approach to combat nematode root parasitism is the application of antagonistic microbes like the rhizobacterium Bacillus firmus I-1582 which is promoted as biological control agent. Although B. firmus is a known...

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Autores principales:	Mengmeng Huang, Aylin Bulut, Bidhya Shrestha, Christiane Matera, Florian M. W. Grundler, A. Sylvia S. Schleker
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c89d9a306ad246b8ab55dbddaee56365
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spelling	oai:doaj.org-article:c89d9a306ad246b8ab55dbddaee563652021-12-02T15:23:07ZBacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations10.1038/s41598-021-93567-02045-2322https://doaj.org/article/c89d9a306ad246b8ab55dbddaee563652021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93567-0https://doaj.org/toc/2045-2322Abstract Plant-parasitic nematodes wreak havoc on crops by root parasitism worldwide. An approach to combat nematode root parasitism is the application of antagonistic microbes like the rhizobacterium Bacillus firmus I-1582 which is promoted as biological control agent. Although B. firmus is a known nematode antagonist in general, the underlying mechanisms about its interaction with nematodes and plants have not yet been elucidated. Therefore, we explored the influence of B. firmus I-1582 as well as its extracellular and secreted molecules on plant–nematode interaction utilizing the plant–pathogen system Arabidopsis thaliana–Heterodera schachtii. We demonstrated that B. firmus I-1582 is attracted by A. thaliana root exudates, particularly by those of young plants. The bacterium colonized the root and showed a strictly pH-dependent development and plant growth promotion effect. Our results revealed that root colonization by B. firmus I-1582 significantly protected A. thaliana from infestation by the beet cyst nematode whereas dead bacterial cells or the culture supernatant were not effective. The bacterium also negatively affected nematode reproduction as well as pathogenicity and development of next generation nematodes. The obtained results highlight B. firmus I-1582 as a promising biocontrol agent that is well suited as an element of integrated control management strategies in sustainable agriculture.Mengmeng HuangAylin BulutBidhya ShresthaChristiane MateraFlorian M. W. GrundlerA. Sylvia S. SchlekerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mengmeng Huang Aylin Bulut Bidhya Shrestha Christiane Matera Florian M. W. Grundler A. Sylvia S. Schleker Bacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations
description	Abstract Plant-parasitic nematodes wreak havoc on crops by root parasitism worldwide. An approach to combat nematode root parasitism is the application of antagonistic microbes like the rhizobacterium Bacillus firmus I-1582 which is promoted as biological control agent. Although B. firmus is a known nematode antagonist in general, the underlying mechanisms about its interaction with nematodes and plants have not yet been elucidated. Therefore, we explored the influence of B. firmus I-1582 as well as its extracellular and secreted molecules on plant–nematode interaction utilizing the plant–pathogen system Arabidopsis thaliana–Heterodera schachtii. We demonstrated that B. firmus I-1582 is attracted by A. thaliana root exudates, particularly by those of young plants. The bacterium colonized the root and showed a strictly pH-dependent development and plant growth promotion effect. Our results revealed that root colonization by B. firmus I-1582 significantly protected A. thaliana from infestation by the beet cyst nematode whereas dead bacterial cells or the culture supernatant were not effective. The bacterium also negatively affected nematode reproduction as well as pathogenicity and development of next generation nematodes. The obtained results highlight B. firmus I-1582 as a promising biocontrol agent that is well suited as an element of integrated control management strategies in sustainable agriculture.
format	article
author	Mengmeng Huang Aylin Bulut Bidhya Shrestha Christiane Matera Florian M. W. Grundler A. Sylvia S. Schleker
author_facet	Mengmeng Huang Aylin Bulut Bidhya Shrestha Christiane Matera Florian M. W. Grundler A. Sylvia S. Schleker
author_sort	Mengmeng Huang
title	Bacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations
title_short	Bacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations
title_full	Bacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations
title_fullStr	Bacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations
title_full_unstemmed	Bacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations
title_sort	bacillus firmus i-1582 promotes plant growth and impairs infection and development of the cyst nematode heterodera schachtii over two generations
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c89d9a306ad246b8ab55dbddaee56365
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Bacillus firmus I-1582 promotes plant growth and impairs infection and development of the cyst nematode Heterodera schachtii over two generations

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