TY - JOUR
T1 - Plant dehydrins and stress tolerance
T2 - Versatile proteins for complex mechanisms
AU - Hanin, Moez
AU - Brini, Faïçal
AU - Ebel, Chantal
AU - Toda, Yosuke
AU - Takeda, Shin
AU - Masmoudi, Khaled
PY - 2011/10
Y1 - 2011/10
N2 - Dehydrins (DHNs), or group 2 LEA (Late Embryogenesis Abundant) proteins, play a fundamental role in plant response and adaptation to abiotic stresses. They accumulate typically in maturing seeds or are induced in vegetative tissues following salinity, dehydration, cold and freezing stress. The generally accepted classification of dehydrins is based on their structural features, such as the presence of conserved sequences, designated as Y, S and K segments. The K segment representing a highly conserved 15 amino acid motif forming amphiphilic α-helix is especially important since it has been found in all dehydrins. Since more than 20 y, they are thought to play an important protective role during cellular dehydration but their precise function remains unclear. This review outlines the current status of the progress made toward the structural, physico-chemical and functional characterization of plant dehydrins and how these features could be exploited in improving stress tolerance in plants.
AB - Dehydrins (DHNs), or group 2 LEA (Late Embryogenesis Abundant) proteins, play a fundamental role in plant response and adaptation to abiotic stresses. They accumulate typically in maturing seeds or are induced in vegetative tissues following salinity, dehydration, cold and freezing stress. The generally accepted classification of dehydrins is based on their structural features, such as the presence of conserved sequences, designated as Y, S and K segments. The K segment representing a highly conserved 15 amino acid motif forming amphiphilic α-helix is especially important since it has been found in all dehydrins. Since more than 20 y, they are thought to play an important protective role during cellular dehydration but their precise function remains unclear. This review outlines the current status of the progress made toward the structural, physico-chemical and functional characterization of plant dehydrins and how these features could be exploited in improving stress tolerance in plants.
KW - Abiotic stress
KW - Cold acclimation
KW - Dehydration stress
KW - Dehydrins
KW - Drought
KW - Freezing tolerance
KW - LEA proteins
UR - http://www.scopus.com/inward/record.url?scp=80053607426&partnerID=8YFLogxK
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U2 - 10.4161/psb.6.10.17088
DO - 10.4161/psb.6.10.17088
M3 - Review article
C2 - 21897131
AN - SCOPUS:80053607426
SN - 1559-2316
VL - 6
SP - 1503
EP - 1509
JO - Plant Signaling and Behavior
JF - Plant Signaling and Behavior
IS - 10
ER -