Abstract
Endosomal trafficking plays an integral role in various eukaryotic cellular activities and
is vital for higher-order functions in multicellular organisms. RAB GTPases are important proteins
that influence various aspects of membrane traffic, which consequently influence many cellular
functions and responses. Compared to yeast and mammals, plants have evolved a unique set of
plant-specific RABs that play a significant role in their development. RABs form the largest family
of small guanosine triphosphate (GTP)-binding proteins, and are divided into eight sub-families
named RAB1, RAB2, RAB5, RAB6, RAB7, RAB8, RAB11 and RAB18. Recent studies on different
species suggest that RAB proteins play crucial roles in intracellular trafficking and cytokinesis,
in autophagy, plant microbe interactions and in biotic and abiotic stress responses. This review recaptures
and summarizes the roles of RABs in plant cell functions and in enhancing plant survival
under stress conditions.
Keywords:
Abiotic stress, biotic stress, GTP binding protein, RAB, Guanosine triphosphate, vesicle trafficking.
Graphical Abstract
[1]
Bos, J.L. Ras.GTPases. Oxford University Press; Hall, A., Ed.; Oxford, 2000, pp. 67-88.
[15]
Gallegos, M.E.; Balakrishnan, S.; Chandramouli, P.; Arora, S.; Azameera, A.; Babushekar, A.; Bargoma, E.; Bokhari, A.; Chava, S.K.; Das, P.; Desai, M.; Decena, D.; Saramma, S.D.; Dey, B.; Doss, A.L.; Gor, N.; Gudiputi, L.; Guo, C.; Hande, S.; Jensen, M.; Jones, S.; Jones, N.; Jorgens, D.; Karamchedu, P.; Kamrani, K.; Kolora, L.D.; Kristensen, L.; Kwan, K.; Lau, H.; Maharaj, P.; Mander, N.; Mangipudi, K.; Menakuru, H.; Mody, V.; Mohanty, S.; Mukkamala, S.; Mundra, S.A.; Nagaraju, S.; Narayanaswamy, R.; Ndungu-Case, C.; Noorbakhsh, M.; Patel, J.; Patel, P.; Pendem, S.V.; Ponakala, A.; Rath, M.; Robles, M.C.; Rokkam, D.; Roth, C.; Sasidharan, P.; Shah, S.; Tandon, S.; Suprai, J.; Truong, T.Q.; Uthayaruban, R.; Varma, A.; Ved, U.; Wang, Z.; Yu, Z. The
C. elegans rab family: identification, classification and toolkit construction.
PLoS One, 2012,
7(11), e49387.
[
http://dx.doi.org/10.1371/journal.pone.0049387] [PMID:
23185324]
[22]
Warren, G.; Mellman, I. “Protein trafficking between membranes”.Cell; Lewin, B., Ed.; Sudbury: Jones & Bartlett, 2006, pp. 153-204.
[33]
Tripathy, M.K.; Reddy, M.K.; Deswal, R.; Sopory, S.K. Towards developing transgenic rice for salinity and drought tolerance: role of Rab7.Muralidharan K and Siddiq EA, eds. 2013. International dialogue on perception and prospects of designer rice; Society for advancement of rice research, Directorate of rice research, Hyderabad 500030, India, 2013, pp. 228-237.
[115]
Yin, C.; Karim, S.; Zhang, H.; Aronsson, H. Arabidopsis RabF1 (ARA6) is involved in salt stress and dark-induced senescence (DIS). Int. J. Mol. Sci., 2017.