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Environmental Growth Conditions of Trichoderma spp. Affects Indole Acetic Acid Derivatives, Volatile Organic Compounds, and Plant Growth Promotion

Nieto-Jacobo, Maria F ; Steyaert, Johanna M ; Salazar-Badillo, Fatima B ; Nguyen, Dianne Vi ; Rostás, Michael ; Braithwaite, Mark ; De Souza, Jorge T ; Jimenez-Bremont, Juan F ; Ohkura, Mana ; Stewart, Alison ; Mendoza-Mendoza, Artemio

Frontiers in plant science, 2017-02, Vol.8, p.102-102 [Periódico revisado por pares]

Switzerland: Frontiers Media S.A

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  • Título:
    Environmental Growth Conditions of Trichoderma spp. Affects Indole Acetic Acid Derivatives, Volatile Organic Compounds, and Plant Growth Promotion
  • Autor: Nieto-Jacobo, Maria F ; Steyaert, Johanna M ; Salazar-Badillo, Fatima B ; Nguyen, Dianne Vi ; Rostás, Michael ; Braithwaite, Mark ; De Souza, Jorge T ; Jimenez-Bremont, Juan F ; Ohkura, Mana ; Stewart, Alison ; Mendoza-Mendoza, Artemio
  • Assuntos: Plant Science
  • É parte de: Frontiers in plant science, 2017-02, Vol.8, p.102-102
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Reviewed by: Masoomeh Shams-Ghahfarokhi, Tarbiat Modares University, Iran; Rachid Lahlali, Ecole Nationale d'Agriculture de Meknès, Morocco
    This article was submitted to Plant Microbe Interactions, a section of the journal Frontiers in Plant Science
    Present Address: Mark Braithwaite, Plant Diagnostics Limited, Templeton, Christchurch, New Zealand
    Edited by: Essaid Ait Barka, University of Reims Champagne-Ardenne, France
    In Memoriam: This paper is dedicated to the memory of the late Annabel Clouston.
  • Descrição: 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 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 assays, primary root length was negatively affected by the interaction with some strains. In soil experiments, a continuum effect on plant growth was shown and this was also strain dependent. In plate assays, some strains of spp. inhibited the expression of the auxin reporter gene DR5 in primary roots but not secondary roots. When spp. and 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. strains Gv29.8, IMI206040, . sp. " LU132, and 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 spp. are multivariable and are affected by the environmental conditions.
  • Editor: Switzerland: Frontiers Media S.A
  • Idioma: Inglês
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