%0 Journal Article %1 Miao2014 %A Miao, Hongxia %A Wang, Yuan %A Liu, Juhua %A Jia, Caihong %A Hu, Wei %A Sun, Peiguang %A Jin, Zhiqiang %A Xu, Biyu %D 2014 %J Electronic Journal of Biotechnology %K MaASR1 online %N 0 %P - %R http://dx.doi.org/10.1016/j.ejbt.2014.09.002 %T Molecular cloning and expression analysis of the MaASR1 gene in banana and functional characterization under salt stress %U http://www.sciencedirect.com/science/article/pii/S0717345814001122 %X AbstractBackground Abscisic acid (ABA)-, stress- and ripening-induced protein (ASR) is plant-specific hydrophilic transcriptional regulators involved in sucrose stress and wounding in banana. However, it is not known whether banana \ASR\ genes confer salt stress tolerance. The contexts of the study was to analysis the sequence characterization of banana ASR1, and identify its expression patterns and function under salt stress using quantitative real-time \PCR\ (qPCR) and overexpression in Arabidopsis. The purpose was to evaluate the role of banana \ASR1\ to salt stress tolerance employed by plants. Results A full-length cDNA isolated from banana fruit was named MaASR1, and it had a 432 bp open reading frame (ORF) encoding 143 amino acids. MaASR1 was preferential expression in roots and leaves compared to low expression in fruits, rhizomes and flowers. Under salt stress, the expression of MaASR1 quickly increased and highest expression level was detected in roots and leaves at 4 h, and then gradually decreased. These results suggested that MaASR1 expression was induced under salt stress. MaASR1 protein was localized in the nucleus and plasma membrane. MaASR1 was transformed to Arabidopsis and verified by southern and northern analysis, transgenic lines Ł14\ and Ł38\ integrated one and two copies of MaASR1, respectively, while overexpression in transgenic lines provided evidence for the role of MaASR1 to salt stress tolerance. Conclusions This study demonstrated that overexpression of MaASR1 in Arabidopsis confers salt stress tolerance by reducing the expression of ABA/stress-responsive genes, but does not affect the expression of the ABA-independent pathway and biosynthesis pathway genes.

@article{Miao2014, abstract = {AbstractBackground Abscisic acid (ABA)-, stress- and ripening-induced protein (ASR) is plant-specific hydrophilic transcriptional regulators involved in sucrose stress and wounding in banana. However, it is not known whether banana \{ASR\} genes confer salt stress tolerance. The contexts of the study was to analysis the sequence characterization of banana ASR1, and identify its expression patterns and function under salt stress using quantitative real-time \{PCR\} (qPCR) and overexpression in Arabidopsis. The purpose was to evaluate the role of banana \{ASR1\} to salt stress tolerance employed by plants. Results A full-length cDNA isolated from banana fruit was named MaASR1, and it had a 432 bp open reading frame (ORF) encoding 143 amino acids. MaASR1 was preferential expression in roots and leaves compared to low expression in fruits, rhizomes and flowers. Under salt stress, the expression of MaASR1 quickly increased and highest expression level was detected in roots and leaves at 4 h, and then gradually decreased. These results suggested that MaASR1 expression was induced under salt stress. MaASR1 protein was localized in the nucleus and plasma membrane. MaASR1 was transformed to Arabidopsis and verified by southern and northern analysis, transgenic lines \{L14\} and \{L38\} integrated one and two copies of MaASR1, respectively, while overexpression in transgenic lines provided evidence for the role of MaASR1 to salt stress tolerance. Conclusions This study demonstrated that overexpression of MaASR1 in Arabidopsis confers salt stress tolerance by reducing the expression of ABA/stress-responsive genes, but does not affect the expression of the ABA-independent pathway and biosynthesis pathway genes. }, added-at = {2014-09-26T09:22:36.000+0200}, author = {Miao, Hongxia and Wang, Yuan and Liu, Juhua and Jia, Caihong and Hu, Wei and Sun, Peiguang and Jin, Zhiqiang and Xu, Biyu}, biburl = {https://www.bibsonomy.org/bibtex/23448f8757ab32bd5118cbd4a07e3a9d8/liloubio}, description = {Molecular cloning and expression analysis of the MaASR1 gene in banana and functional characterization under salt stress}, doi = {http://dx.doi.org/10.1016/j.ejbt.2014.09.002}, interhash = {c29952d1042b0cf75121a538c2b5e780}, intrahash = {3448f8757ab32bd5118cbd4a07e3a9d8}, issn = {0717-3458}, journal = {Electronic Journal of Biotechnology }, keywords = {MaASR1 online}, number = 0, pages = { - }, timestamp = {2014-09-26T09:22:36.000+0200}, title = {Molecular cloning and expression analysis of the MaASR1 gene in banana and functional characterization under salt stress }, url = {http://www.sciencedirect.com/science/article/pii/S0717345814001122}, year = 2014 }