The proteome landscape of the root cap reveals a role for the jacalin-associated lectin JAL10 in the salt-induced endoplasmic reticulum stress pathway
作者机构：Department of BiologyIndian Institute of Science Education and Research(IISER)TirupatiTirupati 517507Andhra PradeshIndia Leibniz Institute of Vegetable and Ornamental CropsTheodor-Echtermeyer-Weg 114979 GroßbeerenGermany
出 版 物：《Plant Communications》 (植物通讯（英文）)
年 卷 期：2023年第4卷第6期
页 面：179-196页
核心收录：
学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学]
基 金：supported by IISER Tirupati and by an Early Career Research award from the Science and Engineering Research Board Department of Science and Technology Govt.of India(ECR/2016/001071)to E.R.K.K.D.acknowledges the CSIR-JRF fellowship and Bi-nationally supervised doctoral degree scholarship from DAAD(91730390)for her PhD.A.M.and A.P.G.acknowledge funding from IISER Tirupati for graduate studies.S.C.acknowledges funding from IISER Tirupati and the Ramalingaswami Re-entry Fellowship(BT/RLF/Re-entry/05/2018)Department of Biotechnology Government of India
主 题：Arabidopsis root cap cell-type specific proteomics salt stress ER stress jacalin-associated lectin
摘 要：Rapid climate change has led to enhanced soil salinity,one of the major determinants of land degradation,resulting in low agricultural *** has a strong negative impact on food security and environmental *** display various physiological,developmental,and cellular responses to deal with salt *** studies have highlighted the root cap as the primary stress sensor and revealed its crucial role in *** root cap covers the primary root meristem and is the first cell type to sense and respond to soil salinity,relaying the signal to neighboring cell ***,it remains unclear how root-cap cells perceive salt stress and contribute to the salt-stress ***,we performed a root-cap cell-specific proteomics study to identify changes in the proteome caused by salt *** study revealed a very specific salt-stress response pattern in root-cap cells compared with non-rootcap cells and identified several novel proteins unique to the root ***-cap-specific protein–protein interaction(PPI)networks derived by superimposing proteomics data onto known global PPI networks revealed that the endoplasmic reticulum(ER)stress pathway is specifically activated in root-cap cells upon salt ***,we identified root-cap-specific jacalin-associated lectins(JALs)expressed in response to salt stress.A JAL10-GFP fusion protein was shown to be localized to the *** of jal10 mutants indicated a role for JAL10 in regulating the ER stress pathway in response to *** together,our findings highlight the participation of specific root-cap proteins in salt-stress response ***,root-cap-specific JAL proteins and their role in the salt-mediated ER stress pathway open a new avenue for exploring tolerance mechanisms and devising better strategies to increase plant salinity tolerance and enhance agricultural productivity.
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