CO2和O3浓度倍增及其交互作用对大豆叶绿体超微结构的影响

应用生态学报 ›› 2003, Vol. ›› Issue (12): 2229-2232.

CO₂和O₃浓度倍增及其交互作用对大豆叶绿体超微结构的影响

赵天宏^1,2, 史奕¹, 黄国宏¹

1. 中国科学院沈阳应用生态研究所, 陆地生态过程重点实验室, 沈阳 110016;
2. 沈阳农业大学, 沈阳 110161

收稿日期:2003-04-07 修回日期:2003-06-06 出版日期:2003-12-15
通讯作者: 史奕
基金资助:
国家自然科学基金项目(40271111);中国科学院沈阳应用生态研究所领域前沿创新资助项目(SCXMS0302)

Effect of doubled CO₂ and O₃ concentration and their interactions on ultrastructure of soybean chloroplast

ZHAO Tianhong^1,2, SHI Yi¹, HUANG Guohong ¹

1. Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2. Shenyang Agricultural University, Shenyang 110161, China

Received:2003-04-07 Revised:2003-06-06 Online:2003-12-15

摘要/Abstract

摘要： 应用透射电镜观察了模拟大气CO₂和O₃浓度倍增及其交互作用(开顶箱法)对大豆叶肉细胞叶绿体超微结构的影响.结果表明,CO₂浓度倍增促进了大豆叶绿体的发育,内含淀粉粒积累明显增多、体积增大;叶绿体被膜保持完好;叶绿体基粒片层排列整齐.而O₃浓度倍增抑制了叶绿体内淀粉粒的累积,并导致叶绿体被膜破碎,片层解体,严重地破坏了叶绿体的结构和功能.CO₂和O₃浓度倍增的交互作用对叶绿体超微结构有不同程度的破坏,但二者浓度呈梯度增加对叶绿体的损害作用要大于二者浓度持续倍增对叶绿体的影响,进一步表明CO₂正效应对O₃负效应的补偿作用.

Abstract: The effect of doubled CO₂ and O₃ concentration on the ultrastructure of chloroplast in leaf cells of soybean was tested by open top chamber method,and examined under transmission electron microscope. The results showed that under doubled CO₂ concentration,the amount and volume of starch grains in chloroplast increased,but the chloroplast membrane and the lamellar structure still kept integrated. The accumulation of starch grains was restrained,and the chloroplast membrane and the lamellar structure were disorganized under doubled O₃ concentration. The ultrastructure of chloroplast was destroyed in different degrees under the interaction of doubled CO₂ and O₃ concentration. The damage to chloroplast arose from the abrupt doubling of CO₂ and O₃ was more severe than that from gradual increase of CO₂ and O₃ concentration. The negative effect of O₃ was partly compensated by the positive effect of doubled CO₂.

中图分类号:

Q945.1

赵天宏, 史奕, 黄国宏. CO₂和O₃浓度倍增及其交互作用对大豆叶绿体超微结构的影响[J]. 应用生态学报, 2003, (12): 2229-2232.

ZHAO Tianhong, SHI Yi, HUANG Guohong . Effect of doubled CO₂ and O₃ concentration and their interactions on ultrastructure of soybean chloroplast[J]. Chinese Journal of Applied Ecology, 2003, (12): 2229-2232.

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CO₂和O₃浓度倍增及其交互作用对大豆叶绿体超微结构的影响

Effect of doubled CO₂ and O₃ concentration and their interactions on ultrastructure of soybean chloroplast

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