Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS)

Arabidopsis small GTPase RabF1 (ARA6) functions in endosomal vesicle transport and may play a crucial role in recycling and degradation of molecules, thus involved in stress responses. Here we have reported that complementary overexpression lines RabF1(OE) (overexpression), GTPase mutants RabF1(Q93L...

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Autores principales: Yin, Congfei, Karim, Sazzad, Zhang, Hongsheng, Aronsson, Henrik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343845/
https://www.ncbi.nlm.nih.gov/pubmed/28157156
http://dx.doi.org/10.3390/ijms18020309
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author Yin, Congfei
Karim, Sazzad
Zhang, Hongsheng
Aronsson, Henrik
author_facet Yin, Congfei
Karim, Sazzad
Zhang, Hongsheng
Aronsson, Henrik
author_sort Yin, Congfei
collection PubMed
description Arabidopsis small GTPase RabF1 (ARA6) functions in endosomal vesicle transport and may play a crucial role in recycling and degradation of molecules, thus involved in stress responses. Here we have reported that complementary overexpression lines RabF1(OE) (overexpression), GTPase mutants RabF1(Q93L) (constitutively active) and RabF1(S47N) (dominant negative) lines show longer root growth than wild-type, rabF1 knockout and N-myristoylation deletion (Δ1−29, N-terminus) complementary overexpression mutant plants under salt induced stress, which indicates that N-myristoylation of RabF1 is indispensable for salt tolerance. Moreover, RabF1 is highly expressed during senescence and RabF1(OE) lines were more tolerant of dark-induced senescence (DIS) than wild-type and rabF1.
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spelling pubmed-53438452017-03-16 Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS) Yin, Congfei Karim, Sazzad Zhang, Hongsheng Aronsson, Henrik Int J Mol Sci Article Arabidopsis small GTPase RabF1 (ARA6) functions in endosomal vesicle transport and may play a crucial role in recycling and degradation of molecules, thus involved in stress responses. Here we have reported that complementary overexpression lines RabF1(OE) (overexpression), GTPase mutants RabF1(Q93L) (constitutively active) and RabF1(S47N) (dominant negative) lines show longer root growth than wild-type, rabF1 knockout and N-myristoylation deletion (Δ1−29, N-terminus) complementary overexpression mutant plants under salt induced stress, which indicates that N-myristoylation of RabF1 is indispensable for salt tolerance. Moreover, RabF1 is highly expressed during senescence and RabF1(OE) lines were more tolerant of dark-induced senescence (DIS) than wild-type and rabF1. MDPI 2017-02-01 /pmc/articles/PMC5343845/ /pubmed/28157156 http://dx.doi.org/10.3390/ijms18020309 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yin, Congfei
Karim, Sazzad
Zhang, Hongsheng
Aronsson, Henrik
Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS)
title Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS)
title_full Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS)
title_fullStr Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS)
title_full_unstemmed Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS)
title_short Arabidopsis RabF1 (ARA6) Is Involved in Salt Stress and Dark-Induced Senescence (DIS)
title_sort arabidopsis rabf1 (ara6) is involved in salt stress and dark-induced senescence (dis)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343845/
https://www.ncbi.nlm.nih.gov/pubmed/28157156
http://dx.doi.org/10.3390/ijms18020309
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