ROSY1, a novel regulator of gravitropic response is a stigmasterol binding protein

Copyright © 2016 The Authors. Published by Elsevier GmbH.. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Journal of plant physiology. - 1979. - 196-197(2016) vom: 01. Juni, Seite 28-40
1. Verfasser: Dalal, Jyoti (VerfasserIn)
Weitere Verfasser: Lewis, Daniel R, Tietz, Olaf, Brown, Erica M, Brown, Christopher S, Palme, Klaus, Muday, Gloria K, Sederoff, Heike W
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Arabidopsis Auxin Gravity Lipid Membrane composition Root Sterol Arabidopsis Proteins Carrier Proteins mehr... Indoleacetic Acids ROSY1 protein, Arabidopsis Stigmasterol 99WUK5D0Y8
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520 |a Copyright © 2016 The Authors. Published by Elsevier GmbH.. All rights reserved. 
520 |a The gravitropic bending in plant roots is caused by asymmetric cell elongation. This requires an asymmetric increase in cell surface and therefore plasma membrane components such as lipids, sterols, and membrane proteins. We have identified an early gravity-regulated protein in Arabidopsis thaliana root apices that binds stigmasterol and phosphoethanolamines. This root-specific protein interacts with the membrane transport protein synaptotagmin-1 and was therefore named InteractoR Of SYnaptotagmin1 (ROSY1). While interactions between ML-domain proteins with membrane transport proteins and their impact have been reported from animal cell systems, this is the first report of such an interaction in a plant system. Homozygous mutants of ROSY1 exhibit decreased basipetal auxin transport, a faster root gravitropic response, and an increase in salt stress tolerance. Our results suggest that ROSY1 plays a role in root gravitropism, possibly by facilitating membrane trafficking and asymmetric cell elongation via its interaction with synaptotagmin-1 
650 4 |a Journal Article 
650 4 |a Arabidopsis 
650 4 |a Auxin 
650 4 |a Gravity 
650 4 |a Lipid 
650 4 |a Membrane composition 
650 4 |a Root 
650 4 |a Sterol 
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650 7 |a Carrier Proteins  |2 NLM 
650 7 |a Indoleacetic Acids  |2 NLM 
650 7 |a ROSY1 protein, Arabidopsis  |2 NLM 
650 7 |a Stigmasterol  |2 NLM 
650 7 |a 99WUK5D0Y8  |2 NLM 
700 1 |a Lewis, Daniel R  |e verfasserin  |4 aut 
700 1 |a Tietz, Olaf  |e verfasserin  |4 aut 
700 1 |a Brown, Erica M  |e verfasserin  |4 aut 
700 1 |a Brown, Christopher S  |e verfasserin  |4 aut 
700 1 |a Palme, Klaus  |e verfasserin  |4 aut 
700 1 |a Muday, Gloria K  |e verfasserin  |4 aut 
700 1 |a Sederoff, Heike W  |e verfasserin  |4 aut 
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773 1 8 |g volume:196-197  |g year:2016  |g day:01  |g month:06  |g pages:28-40 
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