Transcriptional Profiling of Rice Leaves Undergoing a Hypersensitive Response Like Reaction Induced by Xanthomonas oryzae pv. oryzae Cellulase

Jha, Gopaljee ; Patel, Hitendra Kumar ; Dasgupta, Madhumita ; Palaparthi, Ramesh ; Sonti, Ramesh V. (2009) Transcriptional Profiling of Rice Leaves Undergoing a Hypersensitive Response Like Reaction Induced by Xanthomonas oryzae pv. oryzae Cellulase Rice Genetics I, 3 (1). pp. 1-21.

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Official URL: https://doi.org/10.1007/s12284-009-9033-z

Related URL: http://dx.doi.org/10.1007/s12284-009-9033-z

Abstract

A secreted cellulase of Xanthomonas oryzae pv. oryzae induces innate immune responses in rice including a hypersensitive response (HR) like reaction. Microarray analysis was conducted using RNA isolated 12 h following ClsA treatment of leaves. BLAST searches were performed for the 267 (152 up- and 115 downregulated) differentially expressed (≥2-fold) genes. A number of defense and stress-response functions are upregulated while a number of functions involved in metabolism and transport are downregulated following induction of HR. A significant proportion of the differentially expressed genes (41/267) are predicted to encode transcription factors. Co-infiltration of X. oryzae pv. oryzae suppresses ClsA-induced expression of two transcription factors, OsAP2/ethylene response factor (ERF) and OsRERJ1, that are predicted to be involved in the jasmonic-acid-mediated defense pathway. Transient transfer of OsAP2/ERF via Agrobacterium results in the induction of callose deposition, programmed cell death, and resistance against subsequent X. oryzae pv. oryzae infection.

Item Type:Article
Source:Copyright of this article belongs to International Rice Research Institute
Keywords:Cell wall degrading enzymes; Innate immunity; Plant defense response; Jasmonic acid; Hypersensitive response; Microarray; Programmed cell death.
ID Code:141850
Deposited On:27 Dec 2025 11:54
Last Modified:27 Dec 2025 11:54

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