文献类型：期刊文献

英文题名：Plant grafting relieves asymmetry of jasmonic acid response induced by wounding between scion and rootstock in tomato hypocotyl

作者：Wang, Jiaqi[1,2,3,4,5];Li, Dongliang[3,4];Chen, Ni[2,3,4];Chen, Jingjing[3,4];Mu, Changjun[6];Yin, Kuide[1];He, Yuke[5];Liu, Heng[1,2,3,4,5]

机构：[1]Hei Longjiang Bayi Agr Univ, Plant & Microbe Interact Lab, Daqing, Heilongjiang, Peoples R China;[2]Shaoxing Univ, Coll Life Sci, Shaoxing, Zhejiang, Peoples R China;[3]Chinese Acad Trop Agr Sci, Minist Agr, South Subtrop Crop Res Inst, Zhanjiang, Guangdong, Peoples R China;[4]Chinese Acad Trop Agr Sci, Inst South Subtrop Crop Res Inst, Natl Field Genebank Trop Fruit, Zhanjiang, Peoples R China;[5]Chinese Acad Sci, Shanghai Inst Plant Physiol & Ecol, Natl Key Lab Plant Mol Genet, Shanghai, Peoples R China;[6]Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Cell Act & Stress Adaptat, Lanzhou, Peoples R China

年份：2020

卷号：15

期号：11

外文期刊名：PLOS ONE

收录：SCI-EXPANDED(收录号：WOS:000595863100014)、、Scopus(收录号：2-s2.0-85096817857)、WOS

基金：This work was supported by grants from Central Public-interest Scientific Institution Basal Research Fund for the Chinese Academy of Tropical Agricultural Sciences (No. 1630062020001), and Species and Varieties Resources Protection Project of Ministry of Agricultural and Rural Affairs (No.125163006000160004). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

语种：英文

外文摘要：Plant grafting is a sequential wound healing process. However, whether wounding induces a different jasmonic acid (JA) response within half a day (12 h) after grafting or non-grafting remains unclear. Using the tomato hypocotyl grafting method, we show that grafting alleviates the asymmetrical accumulation of JA and jasmonic acid isoleucine conjugate (JA-Ile) in scion and rootstock caused by wounding, and from 2 h after tomato micrografting, grafting obviously restored the level of JA-Ile in the scion and rootstock. Meanwhile, five JA-related genes, SlLOX11, SlAOS, SlCOI1, SlLAPA and SlJA2L, are detected and show significant changes in transcriptional expression patterns within 12 h of grafting, from asymmetrical to symmetrical, when the expression of 30 JA- and defense-related genes were analyzed. The results indicated that grafting alleviates the asymmetrical JA and defense response between scion and rootstock of the tomato hypocotyl within 12 h as induced by wounding. Moreover, we demonstrate that in the very early hours after grafting, JA-related genes may be involved in a molecular mechanism that changes asymmetrical expression as induced by wounding between scion and rootstock, thereby promoting wound healing and grafting success.