Over-expression of OsHsfA7 enhanced salt and drought tolerance in transgenic rice
| Autor: | Ai-Ling Liu, Jie Zou, Cui-Fang Liu, Xiao-Yun Zhou, Xian-Wen Zhang, Guang-Yu Luo, Xin-Bo Chen |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | BMB Reports, Vol 46, Iss 1, Pp 31-36 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1976-6696 1976-670X |
| DOI: | 10.5483/BMBRep.2013.46.1.090 |
| Popis: | Heat shock proteins play an important role in plant stresstolerance and are mainly regulated by heat shock transcriptionfactors (Hsfs). In this study, we generated transgenic riceover-expressing OsHsfA7 and carried out morphologicalobservation and stress tolerance assays. Transgenic plantsexhibited less, shorter lateral roots and root hair. Under salttreatment, over-expressing OsHsfA7 rice showed alleviativeappearance of damage symptoms and higher survival rate, leafelectrical conductivity and malondialdehyde content of transgenicplants were lower than those of wild type plants. Meanwhile,transgenic rice seedlings restored normal growth but wild typeplants could not be rescued after drought and re-wateringtreatment. These findings indicate that over-expression ofOsHsfA7 gene can increase tolerance to salt and drought stressesin rice seedlings. [BMB Reports 2013; 46(1): 31-36] |
| Databáze: | Directory of Open Access Journals |
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