《植物生理学报》 2013, 49(5): 425-436

植物光合产物分配的机理模型的研究进展

陈懿^*, 尹鹏达, 陈伟, 潘文杰

贵州省烟草科学研究院, 贵阳550081

通信作者：陈；E-mail: superseven829@sohu.com；Tel: 0851- 4117156

摘　要：

植物光合产物分配具有极其复杂的调控过程, 建立分配机理模型是研究此复杂过程的主要方法之一。光合产物分配 机理主要为: 功能平衡假说、源汇关系假说和相关生长假说。本文主要介绍了近几年国内外学者利用三种假说构建分配机理模型的核心思路及重点公式, 同时分析了三种假说的内在关系。三种假说从不同角度描述了光合产物分配规律和机理, 假说间并非独立存在, 而是相辅相成, 当外界环境变化时植物通过功能调整光合产物向汇的分配达到资源优化利用, 汇强度代表了相关生长中的分配系数, 同时在不同环境条件和生长阶段汇强度对光合产物的竞争也不同。在此基础上, 本文提出未来拟重点加强的5个研究方向。

关键词：光合产物分配; 功能平衡; 源汇关系; 相关生长; 模型

收稿：2013-02-26   修定：2013-04-18

资助：贵州省烟草公司科技重大专项(2007-04)和“十二五”国家烟草专卖局特色优质烟叶开发重大专项(TS-02-20110015)。

Progress of Mechanism Model in Plant Photosynthate Allocation

CHEN Yi*, YIN Peng-Da, CHEN Wei, PAN Wen-Jie

Guizhou Tobacco Research Institute, Guiyang 550081, China

Corresponding author: CHEN Yi; E-mail: superseven829@sohu.com; Tel: 0851- 4117156

Abstract:

Plant photosynthate allocation has extremely complex control process, photosynthate allocation mechanism model is one of the main methods to study this complex process. Photosynthate allocation mecha-nism include: functional equilibrium hypothesis, source-sink relationship hypothesis and allometric relationship hypothesis. This review introduced domestic and international scholar’s core thoughts and key formulasabout photosynthate allocation mechanism model based on three hypothesesduring recent years, at the same time, analysed relation of three hypotheses. Three hypotheses describe photosynthate allocation regulation and mech-anism from different point of view, so there are not exist in isolation, but complementary, plant through adjust photosynthate allocation to sink to achieve optimal utilization of resources when environmental changes, sinks intensity represents distribution coefficient in the allometric relationship, at the same time sinks contend photo-synthate is also different under different environmental conditions and growth stages. This review pointed out the further five research directions.

Key words: photosynthate allocation; functional equilibrium; source-sink relationship; allometric relationship; model