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| 1 | Emerging Roles of Sphingolipid Signaling in Plant Response to Biotic and Abiotic Stresses显示文摘Plant sphingolipids are not only structural components of the plasma membrane and other endomembrane systems but also act as signaling molecules during biotic and abiotic stresses.However,the roles of sphingolipids in plant signal transduction in response to environmental cues are yet to be investigated in detail. In this review,we discuss the signaling roles of sphingolipid metabolites with a focus on plant sphingolipids.We also mention some microbial sphingolipids that initiate signals during their interaction with plants, because of the limited literatures on their plant analogs.The equilibrium of nonphosphorylated and phosphorylated sphingolipid species determine the destiny of plant cells,whereas molecular connections among the enzymes responsible for this equilibrium in a coordinated signaling network are poorly understood.A mechanistic link between the phytohormone-sphingolipid interplay has also not yet been fully understood and many key participants involved in this complex interaction operating under stress conditions await to be identified.Future research is needed to fill these gaps and to better understand the signal pathways of plant sphingolipids and their interplay with other signals in response to environmental stresses. | Usman Ali Hehuan Li Xuemin Wang Liang Guo | 2018 | Molecular Plant2018，11，11： | 4 |
| 2 | Sphingolipid metabolism, transport, and functions in plants:Recent progress and future perspectives显示文摘Sphingolipids,which comprise membrane systems together with other lipids,are ubiquitous in cellular organisms.They show a high degree of diversity across plant species and vary in their structures,properties,and functions.Benefiting from the development of lipidomic techniques,over 300 plant sphingolipids have been identified.Generally divided into free long-chain bases(LCBs),ceramides,glycosylceramides(GlcCers)and glycosyl inositol phosphoceramides(GIPCs),plant sphingolipids exhibit organized aggregation within lipid membranes to form raft domains with sterols.Accumulating evidence has revealed that sphingolipids obey certain trafficking and distribution rules and confer unique properties to membranes.Functional studies using sphingolipid biosynthetic mutants demonstrate that sphingolipids participate in plant developmental regulation,stimulus sensing,and stress responses.Here,we present an updated metabolism/degradation map and summarize the structures of plant sphingolipids,review recent progress in understanding the functions of sphingolipids in plant development and stress responses,and review sphingolipid distribution and trafficking in plant cells.We also highlight some important challenges and issues that we may face during the process of studying sphingolipids. | Ning-Jing Liu Li-Pan Hou Jing-Jing Bao Ling-Jian Wang Xiao-Ya Chen | 2021 | Plant Communications2021，2，5： | 1 |
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