期刊
PLANT JOURNAL
卷 90, 期 4, 页码 698-707出版社
WILEY
DOI: 10.1111/tpj.13492
关键词
calcium; cell-to-cell communication; plasmodesmata; reactive oxygen species; systemic signaling
资金
- National Science Foundation [MCB-1329723, MCB-1613462, IOS-1557899, IOS-1353886, IOS-0639964, IOS-0743954, IOS-1557787]
- NASA [NNX14AT25G]
- OVPRI research funding (University of Nevada, Reno)
- University of North Texas, College of Arts and Sciences from BARD [IS-4652-13 R]
- United States-Israel Binational Agricultural Research and Development Fund
- Nevada Agricultural Experiment Station [NEV00382, NEV00384]
- Israel Science Foundation [938/11]
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [1557899] Funding Source: National Science Foundation
- Direct For Biological Sciences
- Div Of Molecular and Cellular Bioscience [1329723] Funding Source: National Science Foundation
- NASA [NNX14AT25G, 674010] Funding Source: Federal RePORTER
Plants show a rapid systemic response to a wide range of environmental stresses, where the signals from the site of stimulus perception are transmitted to distal organs to elicit plant-wide responses. A wide range of signaling molecules are trafficked through the plant, but a trio of potentially interacting messengers, reactive oxygen species (ROS), Ca2+ and electrical signaling ('trio signaling') appear to form a network supporting rapid signal transmission. The molecular components underlying this rapid communication are beginning to be identified, such as the ROS producing NAPDH oxidase RBOHD, the ion channel two pore channel 1 (TPC1), and glutamate receptor-like channels GLR3.3 and GLR3.6. The plant cell wall presents a plant-specific route for possible propagation of signals from cell to cell. However, the degree to which the cell wall limits information exchange between cells via transfer of small molecules through an extracellular route, or whether it provides an environment to facilitate transmission of regulators such as ROS or H+ remains to be determined. Similarly, the role of plasmodesmata as both conduits and gatekeepers for the propagation of rapid cell-to-cell signaling remains a key open question. Regardless of how signals move from cell to cell, they help prepare distant parts of the plant for impending challenges from specific biotic or abiotic stresses.
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