ChagnonBradley2015
Reference
Chagnon, P.-L., Bradley, R.L. (2015) The relative importance of host vigor and hormonal response to pathogens in controlling the development of arbuscular mycorrhizal fungi. Soil Biology and Biochemistry, 83:40-42. (Scopus )
Abstract
Plants are routinely colonized by both beneficial and detrimental microorganisms. These two microbial guilds may indirectly interact with each other via their host, either by modifying its vigor, or by altering its hormonal/defense status. Here, we studied indirect interactions between arbuscular mycorrhizal (AM) fungi and three plant pathogens. We show that AM fungal sporulation was only triggered by the least aggressive fungal pathogen, which is known to induce a jasmonate-based hormonal response by the host without affecting its vegetative growth and vigor. Conversely, the most aggressive fungal pathogen considerably reduced host vigor but did not alter AM fungal growth and sporulation. Our results thus suggest that the plant hormonal system is an important component of indirect interactions between AM fungi and plant pathogens.
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@ARTICLE { ChagnonBradley2015,
AUTHOR = { Chagnon, P.-L. and Bradley, R.L. },
TITLE = { The relative importance of host vigor and hormonal response to pathogens in controlling the development of arbuscular mycorrhizal fungi },
JOURNAL = { Soil Biology and Biochemistry },
YEAR = { 2015 },
VOLUME = { 83 },
PAGES = { 40-42 },
NOTE = { cited By 0 },
ABSTRACT = { Plants are routinely colonized by both beneficial and detrimental microorganisms. These two microbial guilds may indirectly interact with each other via their host, either by modifying its vigor, or by altering its hormonal/defense status. Here, we studied indirect interactions between arbuscular mycorrhizal (AM) fungi and three plant pathogens. We show that AM fungal sporulation was only triggered by the least aggressive fungal pathogen, which is known to induce a jasmonate-based hormonal response by the host without affecting its vegetative growth and vigor. Conversely, the most aggressive fungal pathogen considerably reduced host vigor but did not alter AM fungal growth and sporulation. Our results thus suggest that the plant hormonal system is an important component of indirect interactions between AM fungi and plant pathogens. },
AUTHOR_KEYWORDS = { Arbuscular mycorrhizal fungi; Jasmonic acid; Multitrophic interactions; Pathogens; Salicylic acid; Sporulation },
CODEN = { SBIOA },
DOCUMENT_TYPE = { Article },
DOI = { 10.1016/j.soilbio.2015.01.005 },
ISSN = { 00380717 },
KEYWORDS = { Fungi; Salicylic acid, Arbuscular mycorrhizal fungi; Fungal pathogen; Hormonal response; Hormonal systems; Indirect interactions; Jasmonic acids; Sporulation; Vegetative growth, Pathogens, arbuscular mycorrhiza; fungal disease; fungus; growth; hormone; host-pathogen interaction; organic acid; physiological response; vigor, Fungi },
SOURCE = { Scopus },
URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84921918912&partnerID=40&md5=8caebed9bfdd22edcce9ba7617976a44 },
}