Methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.

Plant inoculation with endophytic bacteria that normally live inside the plant without harming the host is a highly promising approach for biological disease control. The mechanism of resistance induction by beneficial bacteria is poorly understood, because pathways are only partly known and systemi...

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Autores principales:	Pavlo Ardanov, Angela Sessitsch, Hely Häggman, Natalia Kozyrovska, Anna Maria Pirttilä
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/918ffc100b564b09afbef764d5bc7baf
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spelling	oai:doaj.org-article:918ffc100b564b09afbef764d5bc7baf2021-11-18T08:13:18ZMethylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.1932-620310.1371/journal.pone.0046802https://doaj.org/article/918ffc100b564b09afbef764d5bc7baf2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23056459/?tool=EBIhttps://doaj.org/toc/1932-6203Plant inoculation with endophytic bacteria that normally live inside the plant without harming the host is a highly promising approach for biological disease control. The mechanism of resistance induction by beneficial bacteria is poorly understood, because pathways are only partly known and systemic responses are typically not seen. The innate endophytic community structures change in response to external factors such as inoculation, and bacterial endophytes can exhibit direct or indirect antagonism towards pathogens. Earlier we showed that resistance induction by an endophytic Methylobacterium sp. in potato towards Pectobacterium atrosepticum was dependent on the density of the inoculum, whereas the bacterium itself had no antagonistic activity. To elucidate the role of innate endophyte communities in plant responses, we studied community changes in both in vitro and greenhouse experiments using various combinations of plants, endophyte inoculants, and pathogens. Induction of resistance was studied in several potato (Solanum tuberosum L.) cultivars by Methylobacterium sp. IMBG290 against the pathogens P. atrosepticum, Phytophthora infestans and Pseudomonas syringae pv. tomato DC3000, and in pine (Pinus sylvestris L.) by M. extorquens DSM13060 against Gremmeniella abietina. The capacities of the inoculated endophytic Methylobacterium spp. strains to induce resistance were dependent on the plant cultivar, pathogen, and on the density of Methylobacterium spp. inoculum. Composition of the endophyte community changed in response to inoculation in shoot tissues and correlated with resistance or susceptibility to the disease. Our results demonstrate that endophytic Methylobacterium spp. strains have varying effects on plant disease resistance, which can be modulated through the endophyte community of the host.Pavlo ArdanovAngela SessitschHely HäggmanNatalia KozyrovskaAnna Maria PirttiläPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 10, p e46802 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pavlo Ardanov Angela Sessitsch Hely Häggman Natalia Kozyrovska Anna Maria Pirttilä Methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.
description	Plant inoculation with endophytic bacteria that normally live inside the plant without harming the host is a highly promising approach for biological disease control. The mechanism of resistance induction by beneficial bacteria is poorly understood, because pathways are only partly known and systemic responses are typically not seen. The innate endophytic community structures change in response to external factors such as inoculation, and bacterial endophytes can exhibit direct or indirect antagonism towards pathogens. Earlier we showed that resistance induction by an endophytic Methylobacterium sp. in potato towards Pectobacterium atrosepticum was dependent on the density of the inoculum, whereas the bacterium itself had no antagonistic activity. To elucidate the role of innate endophyte communities in plant responses, we studied community changes in both in vitro and greenhouse experiments using various combinations of plants, endophyte inoculants, and pathogens. Induction of resistance was studied in several potato (Solanum tuberosum L.) cultivars by Methylobacterium sp. IMBG290 against the pathogens P. atrosepticum, Phytophthora infestans and Pseudomonas syringae pv. tomato DC3000, and in pine (Pinus sylvestris L.) by M. extorquens DSM13060 against Gremmeniella abietina. The capacities of the inoculated endophytic Methylobacterium spp. strains to induce resistance were dependent on the plant cultivar, pathogen, and on the density of Methylobacterium spp. inoculum. Composition of the endophyte community changed in response to inoculation in shoot tissues and correlated with resistance or susceptibility to the disease. Our results demonstrate that endophytic Methylobacterium spp. strains have varying effects on plant disease resistance, which can be modulated through the endophyte community of the host.
format	article
author	Pavlo Ardanov Angela Sessitsch Hely Häggman Natalia Kozyrovska Anna Maria Pirttilä
author_facet	Pavlo Ardanov Angela Sessitsch Hely Häggman Natalia Kozyrovska Anna Maria Pirttilä
author_sort	Pavlo Ardanov
title	Methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.
title_short	Methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.
title_full	Methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.
title_fullStr	Methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.
title_full_unstemmed	Methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.
title_sort	methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/918ffc100b564b09afbef764d5bc7baf
work_keys_str_mv	AT pavloardanov methylobacteriuminducedendophytecommunitychangescorrespondwithprotectionofplantsagainstpathogenattack AT angelasessitsch methylobacteriuminducedendophytecommunitychangescorrespondwithprotectionofplantsagainstpathogenattack AT helyhaggman methylobacteriuminducedendophytecommunitychangescorrespondwithprotectionofplantsagainstpathogenattack AT nataliakozyrovska methylobacteriuminducedendophytecommunitychangescorrespondwithprotectionofplantsagainstpathogenattack AT annamariapirttila methylobacteriuminducedendophytecommunitychangescorrespondwithprotectionofplantsagainstpathogenattack
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Methylobacterium-induced endophyte community changes correspond with protection of plants against pathogen attack.

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