000 nab a22 7a 4500
999 _c62556
_d62548
001 62556
003 MX-TxCIM
005 20200911205319.0
008 200602s2020 ne |||p|op||| 00| 0 eng d
022 _a0981-9428
024 8 _ahttps://doi.org/10.1016/j.plaphy.2020.07.031
040 _aMX-TxCIM
041 _aeng
100 1 _915763
_aMeena, R.P.
245 1 0 _aNovel ASR isolated from drought stress responsive SSH library in pearl millet confers multiple abiotic stress tolerance in PgASR3 transgenic Arabidopsis
260 _aAmsterdam (Netherlands) :
_bElsevier,
_c2020.
500 _aPeer review
520 _aA genomic resource of drought stress responsive genes/ESTs was generated using Suppression Subtractive Hybridization (SSH) approach in a drought stress tolerant Pennisetum glaucum genotype 841B. Fifty five days old plants were subjected to drought stress after withholding water for different time intervals (10 days, 15 days, 20 days and 25 days). A forward subtractive cDNA library was prepared from isolated RNA of leaf tissue. Differential gene expression under drought stress was validated for selected nine contigs by RT-qPCR. A transcript homologous to Setaria italica ASR3 upregulated under drought stress was isolated from genotype 841B and characterized. Heterologous expression of PgASR3 was validated in Arabidopsis and confirmed under multiple abiotic stress conditions. A total of four independent transgenic lines overexpressing gene PgASR3 were analyzed by Southern blot at T1 stage. For drought stress tolerance, three independent lines (T2 stage) were analyzed by biochemical and physiological assays at seedling stage. The growth rate (shoot and root length) of transgenic seedlings improved as compared to WT seedling under differenct abiotic stress conditions. The three transgenic lines were also validated for drought stress tolerance and RT-qPCR analysis, at maturity stage. Under drought stress conditions, the mature transgenic lines showed higher levels of RWC, chlorophyll and proline but lower levels of MDA as compared to WT plants. PgASR3 gene isolated and validated in this study can be utilized for developing abiotic stress tolerant crops.
546 _aText in English
650 7 _2AGROVOC
_93448
_aAbiotic stress
650 7 _2AGROVOC
_91081
_aDrought stress
650 7 _2AGROVOC
_92433
_aPennisetum glaucum
650 7 _2AGROVOC
_915764
_aTransgenics
700 1 _915765
_aVishwakarma, H.
700 1 _915766
_aGhosh, G.
700 1 _915767
_aGaikwad, K.
700 1 _915768
_aChellapilla, T.S.
700 1 _915769
_aSingh, M.P
700 1 _915770
_aPadaria, J.C.
773 0 _dAmsterdam (Netherlands) : Elsevier, 2020.
_gv. 156, p. 7-19
_tPlant Physiology and Biochemistry
_x0981-9428
_wu91708
942 _2ddc
_cJA
_n0