期刊
JOURNAL OF PLANT PHYSIOLOGY
卷 169, 期 6, 页码 614-620出版社
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.jplph.2011.12.016
关键词
Arabidopsis thaliana; Induced systemic resistance; Systemic acquired resistance; Transcriptomic analysis; Trichoderma harzianum
资金
- Junta de Castilla y Leon [SA260A11-2, GR67]
- Ministerio de Ciencia e Innovacion (Spain) [AGL2009-13431-C02-01, AGL2008-0512/AGR]
- Castilla y Leon Education Council
- Social European Fund
Trichoderma harzianum is a fungus used as biocontrol agent using its antagonistic abilities against phytopathogenic fungi, although it has also direct effects on plants, increasing or accelerating their growth and resistance to diseases and the tolerance to abiotic stresses. We analyzed Arabidopsis thaliana gene expression changes after 24 h of incubation in the presence of T. harzianum T34 using the Affymetrix GeneChip Arabidopsis ATH1. Because this microarray contains more than 22,500 probe sets representing approximately 24,000 genes, we were able to construct a global picture of the molecular physiology of the plant at 24 h of T. harzianum-Arabidopsis interaction. We identified several differentially expressed genes that are involved in plant responses to stress, regulation of transcription, signal transduction or plant metabolism. Our data support the hypothesis that salicylic acid- and jasmonic acid-related genes were down-regulated in A. thaliana after 24 h of incubation in the presence of T. harzianum T34, while several genes related to abiotic stress responses were up-regulated. These systemic changes elicited by T. harzianum in Arabidopsis are discussed. (C) 2012 Elsevier GmbH. All rights reserved.
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