亚适低温影响植物生长及氮营养的分子生理机制研究进展  

Research Advance on Molecular Physiological Mechanisms of the Effect of Suboptimal Low Temperatures on Plant Growth and Nitrogen Nutrition

作　　者：吴长征 蒲文宣 盛崧[1] 向禹澄 杨伟芹 李文瑞 黄平俊 刘来华[1] WU Changzheng;PU Wenxuan;SHENG Song;XIANG Yucheng;YANG Weiqin;LI Wenrui;HUANG Pingjun;LIU Laihua(Key Lab of Plant-Soil Interaction,Ministry of Education,College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193,China;Tobacco Research Institute of Technology Centre,China Tobacco Hunan Industrial Corporation,Changsha 410074,China)

机构地区：[1]中国农业大学资源与环境学院,植物-土壤互作教育部重点实验室,北京100193 [2]湖南中烟工业有限责任公司技术中心烟叶研究所,长沙410074

出　　处：《中国农业科技导报》2023年第1期16-25,共10页Journal of Agricultural Science and Technology

基　　金：中国烟草总公司湖南中烟科技计划项目(201943000834043)。

摘　　要：早春低温是限制植物生长的环境因子之一,低温胁迫将导致作物严重减产、品质下降、养分利用效率降低。目前,相关研究多关注于温度在15℃以下的植物生理及分子调控过程网络。增施氮肥或激素等能提高植物耐寒能力,总结了亚适低温对植物的生长表型、代谢生理以及氮利用的影响,讨论了植物响应亚适低温并调控氮吸收利用的生物学机制,以期为深入解析植物在亚适低温下的氮高效利用及其分子生理机制提供参考。Low temperatures at early spring is one of the environmental constrains affecting plant growth.Low-temperature stress results in a severe decrease in the crop yield and quality,as well as the effective utilization of plant nutrients including nitrogen.Relevant studies have focused mostly on the analysis of physiological and molecular regulatory networks of plant growth when temperature was lower than 15℃.Exogenous application of certain substances e.g.nitrogen fertilizer or hormone could improve plant cold tolerance,so this article reviewed the influence of the suboptimal temperature on growth phenotype of some major crops,physiological and metabolic change,and nitrogen use,summarized and discussed the biological mechanisms of plant response to the sub-optimum temperature in association with the regulation of nitrogen acquisition and utilization,which was expected to provide reference for future understanding of higher nitrogen use efficiency and its related molecular physiological mechanism under the sub-optimal low temperature.

关 键 词：亚适低温 低温 氮素 吸收利用 分子机制 

分 类 号：Q78[生物学—分子生物学]