Journal
PLANT SCIENCE
Volume 270, Issue -, Pages 292-300Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.plantsci.2018.03.001
Keywords
Heterotrimeric G-proteins; G proteins; plants; Arabidopsis; G alpha; G beta; G gamma; XLG proteins; RGS protein; RLKs
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Funding
- NIFA/AFRI [2015-67013-22964]
- NSF [IOS-1557942, MCB-1714693]
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Heterotrimeric G-proteins are key signaling components involved during the regulation of a multitude of growth and developmental pathways in all eukaryotes. Although the core proteins (G alpha, G beta, G gamma subunits) and their basic biochemistries are conserved between plants and non-plant systems, seemingly different inherent properties of specific components, altered wirings of G-protein network architectures, and the presence of novel receptors and effector proteins make plant G-protein signaling mechanisms somewhat distinct from the well-established animal paradigm. G-protein research in plants is getting a lot of attention recently due to the emerging roles of these proteins in controlling many agronomically important traits. New findings on both canonical and novel G protein components and their conserved and unique signaling mechanisms are expected to improve our understanding of this important module in affecting critical plant growth and development pathways and eventually their utilization to produce plants for the future needs. In this review, we briefly summarize what is currently known in plant G-protein research, describe new findings and how they are changing our perceptions of the field, and discuss important issues that still need to be addressed.
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