| BABA诱导烟草幼苗抵御干旱胁迫的研究 |
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| 引用本文： | 刘松,肖先仪,刘紫薇,陆雪莲,尤本武,郭家明,何宽信,陈学平.BABA诱导烟草幼苗抵御干旱胁迫的研究[J].安徽农业大学学报,2016,43(2):288-293. |
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| 作者姓名： | 刘松 肖先仪 刘紫薇 陆雪莲 尤本武 郭家明 何宽信 陈学平 |
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| 作者单位： | 中国科学技术大学烟草与健康研究中心,合肥,230026;江西省烟草公司,南昌,330025 |
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| 基金项目： | 江西省烟草公司“提高烟草抗逆性的新型调节物质研制及应用”（赣2011.01.001号）和“江西省烟区烟叶品质定位及其区域划分研究”项目（赣2011.01.002号）共同资助。 |
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| 摘 要： | β-氨基丁酸(BABA)是一种高效的植物诱抗剂,能够增强植物对多种胁迫的抵御能力。通过施加外源BABA来减轻干旱胁迫对烟草幼苗的毒害,并从渗透调节物质,抗氧化酶系统来探讨其作用机理。结果表明,在干旱胁迫下,5 mmol·L-1 BABA可以有效地改善烟草幼苗生长状况,提高其相对含水量及存活率。BABA预处理不仅显著提高干旱胁迫下烟草幼苗渗透调节物质可溶性糖、可溶性蛋白和脯氨酸含量,还增强烟草幼苗超氧化物酶(SOD)和过氧化物酶(POD)活性。此外,BABA预处理提高干旱胁迫下烟草幼苗过氧化氢(H2O2)含量,降低丙二醛(MDA)含量。综上,BABA诱导烟草幼苗抵御干旱胁迫是诱导植物渗透调节物质累积及抗氧化酶活性调节的综合结果。
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| 关 键 词： | β-氨基丁酸 干旱胁迫 烟草 |
| 收稿时间： | 2015/11/20 0:00:00 |
Study on BABA-induced resistance to drought stress in tobacco |
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| LIU Song,XIAO Xianyi,LIU Ziwei,LU Xuelian,YOU Benwu,GUO Jiaming,HE Kuanxin and CHEN Xueping.Study on BABA-induced resistance to drought stress in tobacco[J].Journal of Anhui Agricultural University,2016,43(2):288-293. |
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| Authors: | LIU Song XIAO Xianyi LIU Ziwei LU Xuelian YOU Benwu GUO Jiaming HE Kuanxin and CHEN Xueping |
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| Institution: | Tobacco and Health Research Center, University of Science and Technology of China, Hefei 230026,Jiangxi Tobacco Company, Nanchang 330025,Tobacco and Health Research Center, University of Science and Technology of China, Hefei 230026,Tobacco and Health Research Center, University of Science and Technology of China, Hefei 230026,Tobacco and Health Research Center, University of Science and Technology of China, Hefei 230026,Tobacco and Health Research Center, University of Science and Technology of China, Hefei 230026,Jiangxi Tobacco Company, Nanchang 330025 and Tobacco and Health Research Center, University of Science and Technology of China, Hefei 230026 |
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| Abstract: | |
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| Keywords: | β-aminobutyric acid drought stress tobacco |
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