华北农学报 ›› 2014, Vol. 29 ›› Issue (1): 135-139. doi: 10.7668/hbnxb.2014.01.025

所属专题: 水稻

• 论文 • 上一篇    下一篇

高温对优质水稻籽粒淀粉形成及淀粉合成相关酶活性的影响

吕艳梅1,2, 谭伟平3, 肖层林1, 范美蓉4, 廖育林2   

  1. 1. 湖南农业大学, 湖南长沙 410128;
    2. 湖南省农业科学院, 湖南长沙 410125;
    3. 浙江农科种业有限公司, 浙江杭州 310002;
    4. 长沙环境保护职业技术学院, 湖南长沙 410004
  • 收稿日期:2013-11-06 出版日期:2014-02-28
  • 通讯作者: 肖层林(1950-),男,湖南湘潭人,教授,主要从事种子科学研究。
  • 作者简介:吕艳梅(1978-),女,湖南益阳人,助理研究员,博士,主要从事优质稻的选育与推广工作.
  • 基金资助:
    国家“十二五”科技支撑计划项目(2013BAD07B11);国际植物营养研究所(IPNI)资助项目(Hunan-15)

Effect of High Temperature on Starch Formation of Grain and Activities of Enzymes Related to Starch Synthesis of Quality Rice Varieties

Lv Yan-mei1,2, TAN Wei-ping3, XIAO Ceng-lin1, FAN Mei-rong4, LIAO Yu-lin2   

  1. 1. Hunan Agricultural University, Changsha 410128, China;
    2. Hunan Academy of Agriculture Sciences Changsha 410125, China;
    3. Zhejiang Nongke Seed Industry Co., Ltd., Hangzhou 310002,China;
    4. Changsha Environmental Protection College, Changsha 410004, China
  • Received:2013-11-06 Published:2014-02-28

摘要: 为给水稻抗高温胁迫栽培提供依据,采用高温胁迫与自然温度对比的方法,通过盆栽试验和人工气候室控温,研究了花后高温(37℃)胁迫对籽粒淀粉形成及淀粉合成相关酶活性的影响。结果表明,花后高温(37℃)处理后,籽粒支链淀粉及总淀粉积累量均低于对照(CK,常温),表现为CK>T1>T2>T3;但直链淀粉含量均高于对照,表现为CK<T1<T2<T3。同时,高温对2个供试品种籽粒的淀粉形成均较对照有影响,其影响程度因品种而异,花后高温影响SSS、SS、AGpase、GBSS等淀粉合成相关酶的活性,该系列酶活性均出现先升后降的变化趋势,其峰值出现的先后时间不同,由此对产量产生的影响也存在差异。

关键词: 水稻, 高温胁迫, 淀粉, 淀粉合成相关酶

Abstract: The effects of high temperature on grain starch accumulation,Yuzhenxiang and Xiangwanxian 12 were investigated. In grain growing in pots with temperature controlled and moisture controlled green house in different days after anthesis,compared with grain growing in natural temperature as CK. The results showed that amounts of amy-lopectin and starch accumulation in grains declined significantly under heat stress at different stages after anthesis. The order of the treatments were CK T1 T2 T3 after anthesis,but the amounts of amylase showed the opposite trend. High temperature can brought large influence to rice yield and starch formation compared with the field trial,and different cultivated variety had different effect. High temperature on the heading stage could affect activities of enzymes related to starch synthesis of SSS,SS,AGpase and GBSS etc,this series of enzyme rose at first, reached the peak at different times,so it brought great influence on grain yield.

Key words: Rice, The stress of high temperature, Starch, Enzymes related to starch synthesis

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引用本文

吕艳梅, 谭伟平, 肖层林, 范美蓉, 廖育林. 高温对优质水稻籽粒淀粉形成及淀粉合成相关酶活性的影响[J]. 华北农学报, 2014, 29(1): 135-139. doi: 10.7668/hbnxb.2014.01.025.

Lv Yan-mei, TAN Wei-ping, XIAO Ceng-lin, FAN Mei-rong, LIAO Yu-lin. Effect of High Temperature on Starch Formation of Grain and Activities of Enzymes Related to Starch Synthesis of Quality Rice Varieties[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(1): 135-139. doi: 10.7668/hbnxb.2014.01.025.

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