TY - JOUR
T1 - Brassinosteroids and their role in response of plants to abiotic stresses
AU - Fariduddin, Q.
AU - Yusuf, M.
AU - Ahmad, I.
AU - Ahmad, A.
N1 - Funding Information:
Submitted 10 October 2012, last revision 24 June 2013, accepted 29 July 2013. Abbreviations: 28norCS - 28-norcasterone; 6deoxoCS - 6-deoxocasterone; 6-deoxoTY - 6-deoxotyphasterol; BL - brassinolide; BRI1 - brassinosteroids insensitive I; BRs - brassinosteroids; CAT - catalase; CS - castasterone; EBL - 24-epibrassinolide; HBL - 28-homobrassinolide; LRR - leucine rich repeat; MT-sHSP - mitochondrial small heat shock protein; NPR1 - non-expressor of pathogenesis related genes 1; P5C - pyrroline-5-carboxylase; POX - peroxidase; PR-1 - pathogenesis related 1; PS II - photosystem II; ROS - reactive oxygen species; S/T kinase - serine/threonine kinase; SOD - superoxide dismutase; TE - teasterone; TY - typhasterol. Acknowledgements: M. Yusuf gratefully acknowledges the financial assistance rendered by the University Grant Commission, New Delhi, India in a form of the Dr. D.S. Kothari Postdoctoral Fellowship [F.4-2/2006(BSR) 13-608/2012/BSR]. * Corresponding author; fax: (+91) 571 2702016, e-mail: [email protected]
PY - 2014/3/1
Y1 - 2014/3/1
N2 - Brassinosteroids (BRs) are polyhydroxylated steroidal plant hormones that play pivotal role in the regulation of various plant growth and development processes. BR biosynthetic or signaling mutants clearly indicate that these plant steroids are essential for regulating a variety of physiological processes including cellular expansion and proliferation, vascular differentiation, male fertility, timing senescence, and leaf development. Moreover, BRs regulate the expression of hundreds of genes, affect the activity of numerous metabolic pathways, and help to control overall developmental programs leading to morphogenesis. On the other hand, the potential application of BRs in agriculture to improve growth and yield under various stress conditions including drought, salinity, extreme temperatures, and heavy metal (Cd, Cu, Al, and Ni) toxicity, is of immense significance as these stresses severely hamper the normal metabolism of plants. Keeping in mind the multifaceted role of BRs, an attempt has been made to cover the various aspects mediated by BRs particularly under stress conditions and a possible mechanism of action of BRs has also been suggested.
AB - Brassinosteroids (BRs) are polyhydroxylated steroidal plant hormones that play pivotal role in the regulation of various plant growth and development processes. BR biosynthetic or signaling mutants clearly indicate that these plant steroids are essential for regulating a variety of physiological processes including cellular expansion and proliferation, vascular differentiation, male fertility, timing senescence, and leaf development. Moreover, BRs regulate the expression of hundreds of genes, affect the activity of numerous metabolic pathways, and help to control overall developmental programs leading to morphogenesis. On the other hand, the potential application of BRs in agriculture to improve growth and yield under various stress conditions including drought, salinity, extreme temperatures, and heavy metal (Cd, Cu, Al, and Ni) toxicity, is of immense significance as these stresses severely hamper the normal metabolism of plants. Keeping in mind the multifaceted role of BRs, an attempt has been made to cover the various aspects mediated by BRs particularly under stress conditions and a possible mechanism of action of BRs has also been suggested.
KW - antioxidant system
KW - drought
KW - heavy metals
KW - high temperature
KW - low temperature
KW - oxidative stress
KW - photosynthesis
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U2 - 10.1007/s10535-013-0374-5
DO - 10.1007/s10535-013-0374-5
M3 - Review article
AN - SCOPUS:84893744979
SN - 0006-3134
VL - 58
SP - 9
EP - 17
JO - Biologia Plantarum
JF - Biologia Plantarum
IS - 1
ER -