<FONT face="Verdana">北方粳型超级稻灌浆结实期碳水化合物含量和保护酶活性的变化</FONT>

许明,贾德涛,马殿荣,苗微,王楠,陈温福,

doi:10.3969/j.issn.1001-7216.2011.01.009

中国水稻科学 >

2011 , Vol. 25 >Issue 1: 59 - 64

DOI: https://doi.org/10.3969/j.issn.1001-7216.2011.01.009

研究报告

北方粳型超级稻灌浆结实期碳水化合物含量和保护酶活性的变化

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¹沈阳农业大学水稻研究所/农业部北方作物生理生态重点开放实验室/教育部与辽宁省共建北方粳稻遗传育种重点实验室，辽宁沈阳 110161；²辽宁省铁岭市农业科学院，辽宁铁岭 112616； 3辽宁省铁岭市农业技术培训学校，辽宁铁岭 112616； *通讯联系人， E-mail: wfchen5512@yahoo.com.cn

收稿日期: 1900-01-01

修回日期: 1900-01-01

网络出版日期: 2011-01-10

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Changes in Carbohydrate Content and Protective Enzyme Activity of Japonica Type Super Rice During GrainFilling Stage in North China

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¹Rice Research Institute, Shenyang Agricultural University/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture/Key Laboratory of Northern Japonica Rice Breeding of Liaoning, Shenyang 110161, China; ²Tieling Academy of Agricultural Sciences, Tieling 112616, China; ³Tieling Agricultural Technology School, Tieling 112616, China; *Corresponding author, E-mail: wfchen5512@yahoo.com.cn

Received date: 1900-01-01

Revised date: 1900-01-01

Online published: 2011-01-10

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摘要

以北方粳型超级稻品种沈农265和沈农606为试材，以秋光和辽粳294为对照，采用盆栽试验方法，研究了粳稻灌浆结实期碳水化合物和保护酶活性的变化。结果表明，沈农265和沈农606比对照品种具有显著的产量优势。通过对灌浆结实期的籽粒和叶片碳水化合物的测定，发现沈农265叶片中果糖、葡萄糖、蔗糖含量在花后10 d和花后40 d显著高于对照品种秋光，花后40 d沈农265的籽粒淀粉含量显著高于秋光；而沈农606与对照品种辽粳294叶片和籽粒的碳水化合物含量没有显著差异。根系和叶片保护酶的测定结果表明，超级粳稻的根系衰老要早于地上部分，与同期对照品种相比，沈农265和沈农606叶片和根系丙二醛含量较低，超氧化物歧化酶活性和过氧化物酶活性较高，延缓了植株衰老。

关键词： 粳型超级稻; 碳水化合物含量; 保护酶活性; 丙二醛含量

本文引用格式

许明,贾德涛,马殿荣,苗微,王楠,陈温福, . 北方粳型超级稻灌浆结实期碳水化合物含量和保护酶活性的变化[J]. 中国水稻科学, 2011 , 25(1) : 59 -64 . DOI: 10.3969/j.issn.1001-7216.2011.01.009

Abstract

The carbohydrate and malondialdehyde contents and protective enzyme activities in grains and leaves of rice during grainfilling stage were investigated in a pot experiment with typical japonica super rice varieties, Shennong 265 and Shennong 606 as materials and Akihikari and Liaojing 294 as control. The results showed that Shennong 265 and Shennong 606 had significant advantage in yield. Glucose, fructose and sucrose contents in leaves of Shennong 265 were significantly higher than the control Akihikari at 20 days and 40 days after flowering. At 40 days after flowering, starch content in grains of Shennong 265 was also significantly higher than that of the control Akihikari. Shennong 606 showed no significant difference compared with the control Liaojing 294 in carbohydrate contents in grains and leaves during grainfilling stage. Roots displayed early senescence in contrast to aerial parts, which was indicated by earlier peak of protective enzyme activity in roots than in leaves of japonica type super rice. Shennong 265 and Shennong 606 showed delayed senescence because their leaves and roots had low malondialdehyde content, high superoxidase dismutase activity and peroxidase activity compared with the control varieties.

Key words： japonica super rice; carbohydrate content; protective enzyme activity; malondialdehyde content

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