000 00595nab|a22002177a|4500
999 _c62543
_d62535
001 62543
003 MX-TxCIM
005 20200911204849.0
008 200907s2020||||xxu|||p|op||||00||0|eng|d
022 _a0098-8472
024 8 _ahttps://doi.org/10.1016/j.envexpbot.2020.104192
040 _aMX-TxCIM
041 _aeng
100 0 _aTianxiao Sun
_915733
245 1 0 _aNatural variation analysis of perennial ryegrass in response to abiotic stress highlights LpHSFC1b as a positive regulator of heat stress
260 _aElmsford, NY (USA) :
_bElsevier,
_c2020.
500 _aPeer review
520 _aPerennial ryegrass (Lolium perenne L.) is a cool-season forage and turf grass species cultivated world-wide. Natural variations of stress tolerance of perennial ryegrass varieties and mechanisms of stress tolerance are of great interest for breeders. In this study, stress tolerances of seventeen varieties and function of HSFC1b have been characterized. The results showed seventeen varieties exhibited contrasting tolerance to drought, heat and cold stresses. Tolerant varieties had higher proline than sensitive ones after stress treatments. Drought, heat and cold stresses extensively reprogrammed transcriptome of perennial ryegrass and modulated expression of 4797, 4329 and 4635 genes, respectively. LpHSFC1b was significantly induced after stress treatments and characterized as the core regulators through protein interaction network analysis. Ectopic expression of LpHSFC1b in Arabidopsis improved plant thermotolerance, but not drought and cold tolerances. Transgenic Arabidopsis had decreased electrolyte leakage (EL), malondialdehyde (MDA) content and chlorosis⁄necrosis severity indices, and increased expression of heat stress responsive genes. These data indicated that perennial ryegrass exhibited divergent stress tolerances, and HSFC1b likely functioned as a positive regulator in heat stress response, that may provide detailed insight for understanding of abiotic stress response clues in perennial ryegrass.
546 _aText in English
591 _aJiafa Chen : No CIMMYT Affiliation
650 7 _2AGROVOC
_915734
_aCold
650 7 _2AGROVOC
_91080
_aDrought
650 7 _2AGROVOC
_91143
_aHeat
650 7 _2AGROVOC
_915735
_aLolium perenne
700 0 _aKun Shao
_915736
700 0 _aYan Huang
_915737
700 0 _aYuyang Lei
_915738
700 0 _aLuyun Tan
_915739
700 0 _aZhulong Chan
_915740
773 0 _tEnvironmental and Experimental Botany
_gv. 179, art. 104192
_dElmsford, NY (USA) : Elsevier, 2020.
_x0098-8472
_wu444262
942 _cJA
_n0
_2ddc