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Environmental growth conditions of Trichoderma spp. affects indole acetic acid derivatives, volatile organic compounds, and plant growth promotion

dc.contributor.authorNieto Jacobo, Maria Fernanda
dc.contributor.authorSteyaert, Johanna M.
dc.contributor.authorSalazar Badillo, Fatima Berenice
dc.contributor.authorNguyen, Dianne Vi
dc.contributor.authorRostás, Michael
dc.contributor.authorBraithwaite, Mark
dc.contributor.authorDe Souza, Jorge T.
dc.contributor.authorJiménez Bremont, Juan Francisco
dc.contributor.authorOhkura, Mana
dc.contributor.authorStewart, Alison
dc.contributor.authorMendoza Mendoza, Artemio
dc.date.accessioned2018-03-23T23:59:25Z
dc.date.available2018-03-23T23:59:25Z
dc.date.issued2017-02
dc.identifier.citationNieto-Jacobo MF, Steyaert JM, Salazar-Badillo FB, Nguyen DV, Rostás M, Braithwaite M, De Souza JT, Jimenez-Bremont JF, Ohkura M, Stewart A and Mendoza-Mendoza A (2017) Environmental Growth Conditions of Trichoderma spp. Affects Indole Acetic Acid Derivatives, Volatile Organic Compounds, and Plant Growth Promotion. Front. Plant Sci. 8:102. doi: 10.3389/fpls.2017.00102
dc.identifier.urihttp://hdl.handle.net/11627/3688
dc.description.abstract"Trichoderma species are soil-borne filamentous fungi widely utilized for their many plant health benefits, such as conferring improved growth, disease resistance and abiotic stress tolerance to their hosts. Many Trichoderma species are able to produce the auxin phytohormone indole-3-acetic acid (IAA), and its production has been suggested to promote root growth. Here we show that the production of IAA is strain dependent and diverse external stimuli are associated with its production. In in vitro assays, Arabidopsis primary root length was negatively affected by the interaction with some Trichoderma strains. In soil experiments, a continuum effect on plant growth was shown and this was also strain dependent. In plate assays, some strains of Trichoderma spp. inhibited the expression of the auxin reporter gene DR5 in Arabidopsis primary roots but not secondary roots. When Trichoderma spp. and A. thaliana were physically separated, enhancement of both shoot and root biomass, increased root production and chlorophyll content were observed, which strongly suggested that volatile production by the fungus influenced the parameters analyzed. Trichoderma strains T. virens Gv29.8, T. atroviride IMI206040, T. sp. "atroviride B" LU132, and T. asperellum LU1370 were demonstrated to promote plant growth through volatile production. However, contrasting differences were observed with LU1370 which had a negative effect on plant growth in soil but a positive effect in plate assays. Altogether our results suggest that the mechanisms and molecules involved in plant growth promotion by Trichoderma spp. are multivariable and are affected by the environmental conditions."
dc.publisherFrontiers Media S.A.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectTrichoderma
dc.subjectAuxins
dc.subject3-indole-acetic acid
dc.subjectPlant growth promotion
dc.subjectVolatile organic compounds
dc.subject6-PP
dc.subject.classificationBIOLOGÍA MOLECULAR
dc.titleEnvironmental growth conditions of Trichoderma spp. affects indole acetic acid derivatives, volatile organic compounds, and plant growth promotion
dc.typearticle
dc.identifier.doihttps://doi.org/10.3389/fpls.2017.00102
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional