首页> 外文期刊>水稻科学(英文版) >High Temperature During Rice Grain Filling Enhances Aspartate Metabolism in Grains and Results in Accumulation of Aspartate-Family Amino Acids and Protein Components
【24h】

High Temperature During Rice Grain Filling Enhances Aspartate Metabolism in Grains and Results in Accumulation of Aspartate-Family Amino Acids and Protein Components

机译:水稻籽粒灌浆过程中的高温会增强谷物中的天冬氨酸代谢,并导致天冬氨酸家族氨基酸和蛋白质成分积累

获取原文
获取原文并翻译 | 示例
       

摘要

Global warming causes the exacerbation of rice growing environment, which seriously affects rice growth and reproduction, and finally results in the decrease of rice yield and quality. We investigated the activities of aspartate metabolism enzymes in grains, and the contents of Aspartate-family amino acids and protein components to further understand the effects of high temperature(HT) on rice nutritional quality during rice grain filling. Under HT, the average activities of aspartate aminotransferase(AAT) and aspartokinase(AK) in grains significantly increased, the amino acid contents of aspartate(Asp), lysine(Lys), threonine(Thr), methionine(Met) and isoleucine(Ile) and the protein contents of albumin, globulin, prolamin and glutelin also significantly increased. The results indicated that HT enhanced Asp metabolism during rice grain filling and the enhancement of Asp metabolism might play an important role in the increase of Asp-family amino acids and protein components in grains. In case of the partial appraisal of the change of Asp-family amino acids and protein components under HT, we introduced eight indicators(amino acid or protein content, ratio of amino acid or protein, amino acid or protein content per grain and amino acid or protein content per panicle) to estimate the effects of HT. It is suggested that HT during rice grain filling was benefit for the accumulation of Asp-family amino acids and protein components. Combined with the improvement of Asp-family amino acid ratio in grains under HT, it is suggested that HT during grain filling may improve the rice nutritional quality. However, the yields of parts of Asp-family amino acids and protein components were decreased under HT during rice grain filling.

著录项

  • 来源
    《水稻科学(英文版)》 |2013年第5期|343-348|共6页
  • 作者单位

    Key Laboratory of Crop Physiology, Ecology, and Cultivation in Southwest China, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China;

    Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113-8657, Japan;

    Key Laboratory of Crop Physiology, Ecology, and Cultivation in Southwest China, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China;

    Key Laboratory of Crop Physiology, Ecology, and Cultivation in Southwest China, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China;

    Key Laboratory of Crop Physiology, Ecology, and Cultivation in Southwest China, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China;

    Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113-8657, Japan;

    Key Laboratory of Crop Physiology, Ecology, and Cultivation in Southwest China, Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China;

  • 收录信息 中国科技论文与引文数据库(CSTPCD);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号