Identification of putative defense-related genes in Japanese pear against <Emphasis Type="Italic">Alternaria alternata</Emphasis> infection using suppression subtractive hybridization and expression analysis |
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| Authors: | Mayumi Egusa Haruna Ochi Takashi Tsuge Hiroshi Otani Motoichiro Kodama |
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| Institution: | (1) The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan;(2) Laboratory of Plant Pathology, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan;(3) Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan |
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| Abstract: | The Japanese pear pathotype of Alternaria alternata, a toxin-dependent necrotrophic pathogen, causes black spot of Japanese pear by producing the host-specific AK-toxin. Pre-inoculation
with nonpathogenic A. alternata or pretreatment with an elicitor prepared from A. alternata reduced disease symptoms caused by the pathogen. Salicylic acid- and jasmonic acid-dependent signaling pathways are not involved
in the induced resistance to infection by the pathogen. The expression of multiple defense-related genes in Japanese pear
leaves inoculated with nonpathogenic A. alternata was examined using suppression subtractive hybridization.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users.
The nucleotide sequence data reported are available in the DDBJ/EMBL/GenBank database as accessions DC993229–DC993535. |
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| Keywords: | Alternaria alternata Induced resistance Host-specific toxin Japanese pear Pyrus pyrifolia Suppression subtractive hybridization |
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