植酸对杂交水稻V20B种子萌发及生理特性的影响2012620204527952.pdf

2012,41(2):6-8. Subtropical Plant Science 植酸对杂交水稻 V20B 种子萌发及 生理特性的影响 1,2 2 1,2 丁君辉 ，彭应龙 ，欧 欧 (1.湖南农业大学 植物激素与生长发育湖南省重点实验室，湖南 长沙 410128 ；2.湖南农业大学 生物科学技术学院，湖 南 长沙 410128) 摘 要：以杂交水稻V20B 为材料，研究外源植酸对种子萌发的影响。结果表明，外源植酸浓度为 10 mmol/L 时能明显抑制种子萌发。生理生化检测表明，植酸对杂交水稻种子萌发过程中 α-淀粉酶活性、可溶性糖和内 源植酸含量变化有不同程度的影响。 关键词：植酸；杂交水稻；种子萌发；生理特性 Doi: 10.3969/j.issn.1009-7791.2012.02.002 中图分类号：Q945.34 文献标识码：A 文章编号：1009-7791(2012)02-0006-03 Effects of Phytic Acid on Physiological Characteristics of Germination of Hybrid Rice Seeds 1,2 2 1,2 DING Jun-hui , PENG Ying-long , OU Ou (1.Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha 410128, Hunan China; 2.College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, Hunan China) Abstract: Hybrid rice seeds V20B were used as experimental material to study the effect of exogenous phytic acid on physiological characteristics of germination of hybrid rice seed. The results showed that seed germination was significantly inhibited by 10 mmol/L exogenous phytic acid. Physiological and biochemical analysis indicated that α-amylases activity, soluble sugar content, and phytic acid were affected in different degrees by exogenous phytic acid during seed germination ． Key words: phytic acid; hybrid rice; seed germination; physiological characteristic 植酸（六磷酸肌醇C H O P ）是植物体中磷的主要储藏形式，广泛存在于植物种子和果实中，禾 6 18 24 6 谷类籽粒中含量丰富，每 1 g糙米含植酸 8.9 mg[1] 。研究