[1]顾万荣,李召虎,翟志席,等.DCPTA和DTA-6对大豆叶片光合及叶绿素荧光特性的调控[J].大豆科学,2008,27(05):777-782.[doi:10.11861/j.issn.1000-9841.2008.05.0777]
　GU Wan-rong,LI Zhao-hu,ZHAI Zhi-xi,et al.Regulation of DCPTA and DTA-6 on Photosynthesis and Chlorophyll Fluorescence Parameters of Soybean Leaves[J].Soybean Science,2008,27(05):777-782.[doi:10.11861/j.issn.1000-9841.2008.05.0777]
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DCPTA和DTA-6对大豆叶片光合及叶绿素荧光特性的调控

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第27卷 期数: 2008年05期 页码: 777-782 栏目: 出版日期: 2008-10-25
Title:
Regulation of DCPTA and DTA-6 on Photosynthesis and Chlorophyll Fluorescence Parameters of Soybean Leaves
文章编号:
1000-9841(2005)06-0777-06
作者:
顾万荣; 李召虎; 翟志席; 段留生;  张明才
中国农业大学农学与生物技术学院农学系，农业部作物栽培与耕作学重点开放实验室，北京 100094
Author(s):
GU Wan-rong;  LI Zhao-hu;  ZHAI Zhi-xi;  DUAN Liu-sheng;  ZHANG Ming-cai
Key Laboratory of Crop Cultivation and Farming System，Ministry of Agriculture，College of Agronomy and Biotechnology，China Agricultural University，Beijing 100094，China
关键词:
植物生长调节剂; DCPTA; DTA-6; 大豆; 光合作用; 叶绿素荧光
Keywords:
Plant growth regulator; DCPTA; DTA-6;  Soybean;  Photosynthesis;  Chlorophyll fluorescence
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2008.05.0777
文献标志码:
A
摘要:
叔胺类活性物质是一类具有高生物活性和低分子量特性的生物活性物质，其中DCPTA和DTA-6是该类化合物的典型代表。目前有关叔胺类活性物质的研究仅在生理效应上，未能揭示叔胺类活性物质对作物生长发育的调控，特别是对光合作用的调控，从而限制了叔胺类活性物质进一步推广应用。以大豆中黄13为材料，在温室和盆栽条件下，研究叶面喷施叔胺类活物质DCPTA和DTA-6对大豆苗期叶片光合特性、光合关键酶以及叶绿素荧光特性的调控机制。结果表明：DCPTA和DTA-6处理提高了大豆叶片光合速率、蒸腾速率、气孔导度和叶绿素含量，降低了细胞间隙CO2浓度和叶绿素a/b值；提高了PEPC羧化酶和RuBP羧化酶活性；提高了大豆叶片PSⅡ最大光化学效率（Fv/Fm）、PSⅡ有效电子产量（ΦPSⅡ）和光化学淬灭(qP)，降低了非光化学淬灭系数（qN）；提高了大豆株高和生物量； DCPTA和DTA-6处理的适宜浓度分别为20 mg.L-1和10 mg.L-1
Abstract:
Tertiary Amines substance is a kind of high bioactive regulators with low molecular weight. DTA-6 and DCPTA are the two representative tertiary compounds，which has various influences on physiological process in plants. Up to now, most work were focused the physiological effect and little has been known about the mechanism of the promotive effect of DTA-6 on plant photosynthesis, which prevent them into practical application.The objective of this work was to find the photosynthetic responses of corn and soybean to foliar application of DTA-6.The effect of DCPTA and DTA-6 on photosynthesis, photosynthetic key enzyme and chlorophyll fluorescence parameters of soybean (cv. Zhonghuang 13) leaves, was studied in pots under greenhouse. DCPTA and DTA-6 were sprayed on leaves at seedling about the first fully explanted leaves, and with water spraying as control. The results indicated the height and biomass were significantly increased by DCPTA and DTA-6. The photosynthetic rate, transpiration rate, stomatal conductance and chlorophyll content were increased, and the intercellular CO2concentration and chlorophyll a/b were decreased by the application of DCPTA and DTA-6. The activities of PEPCase and RuBPcase, maximal photochemical efficiency of PSⅡ (Fv/Fm), effective quantum yield of PSⅡ (ΦPSⅡ), photochemical quenching coefficient (qP) were significantly promoted by the application of DCPTA and DTA-6, but non-photochemical quenching coefficient(qN)was declined. The optimun concentration for soybean was 20 mg.L-1DCPTA and 10 mg.L-1DTA-6.

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备注/Memo

基金项目：国家自然科学基金资助项目（30500306）；国家高技术研究发展计划（863计划）资助项目（2006AA10A213）；国家科技支撑计划资助项目（2006BAD521B01-3）。

作者简介：顾万荣（1980-），男，博士研究生，研究方向为作物化学控制。
通讯作者：张明才，讲师。E-mail:zmc1214@163.com。

更新日期/Last Update: 2014-10-06