Rpi-blb2-mediated hypersensitive cell death caused by phytophthora infestans AVRblb2 requires SGT1, but not EDS1, NDR1, salicylic acid-, jasmonic acid-, or ethylene-mediated signaling

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dc.contributor.authorSang Keun Oh-
dc.contributor.authorSuk Yoon Kwon-
dc.contributor.authorD Choi-
dc.date.accessioned2017-04-19T09:56:12Z-
dc.date.available2017-04-19T09:56:12Z-
dc.date.issued2014-
dc.identifier.issnI000-0113-
dc.identifier.uri10.5423/PPJ.OA.03.2014.0027ko
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/12184-
dc.description.abstractPotato Rpi-blb2 encodes a protein with a coiled-coil-nu-cleotide binding site and leucine-rich repeat (CC-NBS-LRR) motif that recognizes the Phytophthora infestans AVRblb2 effector and triggers hypersensitive cell death (HCD). To better understand the components required for Rpi-blb2-mediated HCD in plants, we used virus-induced gene silencing to repress candidate genes in Rpi-blb2-transgenic Nicotiana benthamiana plants and assayed the plants for AVRblb2 effector. Rpi-blb2 triggers HCD through NbSGT1-mediated pathways, but not NbEDS1-or NbNDR1-mediated pathways. In addition, the role of salicylic acid (SA), jasmonic acid (JA), and ethylene (ET) in Rpi-blb2-mediated HCD were analyzed by monitoring of the responses of NbICS1-, NbCOI1-, or NbEIN2-silenced or Rpi-blb2::NahG-transgenic plants. Rpi-blb2-mediated HCD in response to AVRblb2 was not associated with SA accumulation. Thus, SA affects Rpi-blb2-mediated resistance against P. infestans, but not Rpi-blb2-mediated HCD in response to AVRblb2. Additionally, JA and ET signaling were not required for Rpi-blb2-mediated HCD in N. benthamiana. Taken together, these findings suggest that NbSGT1 is a unique positive regulator of Rpi-blb2-mediated HCD in response to AVRblb2, but EDS1, NDR1, SA, JA, and ET are not required.-
dc.publisherKorea Soc-Assoc-Inst-
dc.titleRpi-blb2-mediated hypersensitive cell death caused by phytophthora infestans AVRblb2 requires SGT1, but not EDS1, NDR1, salicylic acid-, jasmonic acid-, or ethylene-mediated signaling-
dc.title.alternativeRpi-blb2-mediated hypersensitive cell death caused by phytophthora infestans AVRblb2 requires SGT1, but not EDS1, NDR1, salicylic acid-, jasmonic acid-, or ethylene-mediated signaling-
dc.typeArticle-
dc.citation.titlePlant Pathology Journal-
dc.citation.number3-
dc.citation.endPage260-
dc.citation.startPage254-
dc.citation.volume30-
dc.contributor.affiliatedAuthorSang Keun Oh-
dc.contributor.affiliatedAuthorSuk Yoon Kwon-
dc.contributor.alternativeName오상근-
dc.contributor.alternativeName권석윤-
dc.contributor.alternativeName최도일-
dc.identifier.bibliographicCitationPlant Pathology Journal, vol. 30, no. 3, pp. 254-260-
dc.identifier.doi10.5423/PPJ.OA.03.2014.0027-
dc.subject.keywordAVRblb2 effector-
dc.subject.keywordEDS1-
dc.subject.keywordHypersensitive cell death-
dc.subject.keywordNDR1-
dc.subject.keywordRpi-blb2-
dc.subject.keywordSGT1-
dc.subject.localAVRblb2 effector-
dc.subject.localEDS1-
dc.subject.localHypersensitive cell death-
dc.subject.localNDR1-
dc.subject.localRpi-blb2-
dc.subject.localSGT1-
dc.description.journalClassY-
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