Mycorrhiza l tomato plants fine tunes the growth‐defencebalance upon N depleted root environments
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Other documents of the author: Sánchez-Bel, Paloma; Sanmartín, Neus; Pastor, Victoria; Mateu Garcia, Diego; Cerezo García, Miguel; Vidal-Albalat, Andreu; Pastor Fernández, Julia; Pozo, Maria J.; Flors, Victor
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2508
comunitat-uji-handle3:10234/6999
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https://doi.org/10.1111/pce.13105 |
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Title
Mycorrhiza l tomato plants fine tunes the growth‐defencebalance upon N depleted root environmentsAuthor (s)
Date
2018Publisher
WileyISSN
0140-7791; 1365-3040Bibliographic citation
Sánchez‐Bel P, Sanmartín N, Pastor V,et al. Mycorrhizal tomato plants fine tunes the growth‐defencebalance upon N depleted root environments. Plant Cell Environ.2018;41:406–420.https://doi.org/10.1111/pce.13105420Type
info:eu-repo/semantics/articlePublisher version
https://onlinelibrary.wiley.com/doi/10.1111/pce.13105Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
In low nutritive environments, the uptake of N by arbuscular mycorrhizal (AM) fungi may confercompetitive advantages for the host. The present study aims to understand how mycorrhizaltomato plants perceive and then ... [+]
In low nutritive environments, the uptake of N by arbuscular mycorrhizal (AM) fungi may confercompetitive advantages for the host. The present study aims to understand how mycorrhizaltomato plants perceive and then prepare for an N depletion in the root environment. Plantscolonized by Rhizophagus irregularis displayed improved responses to a lack of N thannonmycorrhizal (NM) plants. These responses were accomplished by a complex metabolic andtranscriptional rearrangement that mostly affected the gibberellic acid and jasmonic acid path-ways involving DELLA and JAZ1 genes, which were responsive to changes in the C/N imbalanceof the plant. N starved mycorrhizal plants showed lower C/N equilibrium in the shoots thanstarved NM plants and concomitantly a downregulation of the JAZ1 repressor and the increasedexpression of the DELLA gene, which translated into a more active oxylipin pathway in mycorrhi-zal plants. In addition, the results support a priorization in AM plants of stress responses overgrowth. Therefore, these plants were better prepared for an expected stress. Furthermore, mostmetabolites that were severely reduced in NM plants following the N depletion remained unal-tered in starved AM plants compared with those normally fertilized, suggesting that the symbiosisbuffered the stress, improving plant development in a stressed environment. [-]
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Plant Cell Environ. 2018;41Investigation project
AGL2012‐39923 ; AGL2015‐64990‐2RRights
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info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
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