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Position: Home > Articles > Effects of elevated CO_2 concentration on physiological characters of three dwarf ornamental bamboo species Chinese Journal of Applied Ecology 2013,24 (9) 2408-2414

CO_2浓度升高对三种地被类观赏竹生理特性的影响

作  者:
庄明浩;陈双林;李迎春;郭子武;杨清平
单  位:
中国林业科学研究院亚热带林业研究所
关键词:
美丽箬竹;黄条金刚竹;白缟椎谷笹竹;CO2浓度升高;膜质过氧化;抗氧化系统
摘  要:
运用开顶式气室(OTCs)模拟大气CO2浓度升高(500、700μmol·mol-1)情景,以环境背景大气为对照,研究CO2浓度升高对3种地被类观赏竹(美丽箬竹、黄条金刚竹和白缟椎谷笹竹)叶片的膜脂过氧化和抗氧化系统的影响及其种间差异.结果表明:试验进行103 d后,500μmol·mol-1CO2浓度下,3种地被类观赏竹的叶片超氧阴离子含量、丙二醛(MDA)含量、相对电导率和可溶性糖含量总体上没有发生明显的变化,但叶片超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)和抗坏血酸过氧化物酶(APX)活性有一定程度的改变;700μmol·mol-1CO2浓度下,3个竹种的叶片MDA含量和相对电导率没有发生明显变化,但对叶片超氧阴离子含量、可溶性糖含量和SOD、POD、CAT、APX活性的影响较为明显.不同竹种对CO2浓度升高环境的适应能力为美丽箬竹>黄条金刚竹>白缟椎谷笹竹.
译  名:
Effects of elevated CO_2 concentration on physiological characters of three dwarf ornamental bamboo species
作  者:
ZHUANG Ming-hao;CHEN Shuang-lin;LI Ying-chun;GUO Zi-wu;YANG Qing-ping;Research institute of Subtropical Forestry,Chinese Forestry Academy;Experimental Centre of Subtropical Forestry,Chinese Forestry Academy;
关键词:
Indocalamus decorus;;Pleioblastus kongosanensis;;Sasa glabra;;elevated CO2 concentration;;lipid peroxidation;;anti-oxidation enzyme system
摘  要:
By using open-top chambers( OTCs) to simulate the scenes of elevated CO2concentrations [500 μmol·mol-1( T1) and 700 μmol·mol-1( T2) ],and taking ambient atmospheric CO2concentration as the control( CK),this paper studied the effects of elevated CO2concentration on the lipid peroxidation and anti-oxidation enzyme system in Indocalamus decorus,Pleioblastus kongosanensis,and Sasa glabra leaves. After 103 days treatment,the O2-·and MDA contents,relative electron conduction,and soluble sugar content in the three dwarf ornamental bamboo species leaves in T1had no obvious change,but the activities of anti-oxidation enzymes( SOD,POD,CAT,and APX) changed to a certain extent. In T2,the MDA content and relative electron conduction had no obvious change,but the O-·2and soluble sugar contents and the anti-oxidation enzymes activities changed obviously. The adaptation capacity of the three bamboo species to elevated CO2concentration was in the order of I. decorus > P. kongosanensis > S. glabra.

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