Arid
DOI10.1007/s11248-007-9086-y
Stress inducible expression of the DREB1A transcription factor from xeric, Hordeum spontaneum L. in turf and forage grass (Paspalum notatum Flugge) enhances abiotic stress tolerance
James, Victoria A.; Neibaur, Isaac; Altpeter, Fredy
通讯作者Altpeter, Fredy
来源期刊TRANSGENIC RESEARCH
ISSN0962-8819
出版年2008
卷号17期号:1页码:93-104
英文摘要

The dehydration-responsive element binding proteins (DREB1)/C-repeat (CRT) binding factors (CBF) function as transcription activators and bind to the DRE/CRT cis-acting element commonly present in the promoters of abiotic stress-regulated genes. A DREB1A transcription factor ortholog was isolated from a xeric, wild barley (Hordeum spontaneum L.) accession, originating from the Negev desert. Sequence comparison revealed a very high degree of sequence conservation of HsDREB1A to the published barley (Hordeum vulgare L.) DREB1A. Constitutive expression of the HsDREB1A gene was able to trans-activate a reporter gene under transcriptional control of the stress-inducible HVA1s and Dhn8 promoters. HsDREB1A was subcloned under transcriptional control of the stress-inducible barley HVA1s promoter and introduced into the apomictic bahiagrass (Paspalum notatum Flugge) cultivar ’Argentine’. HsDREB1A integration and stress inducible expression was detected in primary transgenic bahiagrass plants and apomictic seed progeny by Southern blot, RT-PCR and northern blot analysis respectively. Transgenic bahiagrass plants with stress-inducible expression of HsDREB1A survived severe salt stress and repeated cycles of severe dehydration stress under controlled environment conditions, in contrast to non-transgenic plants. The observed abiotic stress tolerance is very desirable in turf and forage grasses like bahiagrass, where seasonal droughts and irrigation restrictions affect establishment, persistence or productivity of this perennial crop.


英文关键词DREB1A transcription factor Hordeum spontaneum bahiagrass turfgrass forage transgenic plants freezing tolerance drought tolerance salt tolerance
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000251869000009
WOS关键词RESPONSIVE GENE-EXPRESSION ; ABA SIGNAL-TRANSDUCTION ; PROTEIN PHOSPHATASE 2C ; THALIANA L HEYNH ; LOW-TEMPERATURE ; ARABIDOPSIS-THALIANA ; COLD-ACCLIMATION ; FREEZING TOLERANCE ; FUNCTIONAL-ANALYSIS ; TRANSGENIC RICE
WOS类目Biochemical Research Methods ; Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS研究方向Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/159311
作者单位Univ Florida, Inst Genet, Dept Agron, Plant Mol & Cell Biol Program, Gainesville, FL 32611 USA
推荐引用方式
GB/T 7714
James, Victoria A.,Neibaur, Isaac,Altpeter, Fredy. Stress inducible expression of the DREB1A transcription factor from xeric, Hordeum spontaneum L. in turf and forage grass (Paspalum notatum Flugge) enhances abiotic stress tolerance[J],2008,17(1):93-104.
APA James, Victoria A.,Neibaur, Isaac,&Altpeter, Fredy.(2008).Stress inducible expression of the DREB1A transcription factor from xeric, Hordeum spontaneum L. in turf and forage grass (Paspalum notatum Flugge) enhances abiotic stress tolerance.TRANSGENIC RESEARCH,17(1),93-104.
MLA James, Victoria A.,et al."Stress inducible expression of the DREB1A transcription factor from xeric, Hordeum spontaneum L. in turf and forage grass (Paspalum notatum Flugge) enhances abiotic stress tolerance".TRANSGENIC RESEARCH 17.1(2008):93-104.
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