Depression of Photosynthesis, Growth, and Yield in Field-Grown Green Pepper (Capsicum annuum L.) Exposed to Acidic Fog and Ambient Ozone.
Depression of Photosynthesis, Growth, and Yield in Field-Grown Green Pepper (Capsicum annuum L.) Exposed to Acidic Fog and Ambient Ozone.
复制标题
暴露于酸性雾和环境臭氧下的田间青椒 (Capsicum annuum L.) 的光合作用、生长和产量下降。
DOI：
10.1104/pp.88.2.477
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发表时间：
1988
期刊：
影响因子：
7.4
通讯作者：
D. Olszyk
中科院分区：
文献类型：
--
作者：
B. Takemoto;A. Bytnerowicz;D. Olszyk
以田间栽培的绿色辣椒为材料，研究了辣椒生理、伤害、生长和产量反应之间的关系。加州奇迹“）受到两个空气传播的环境压力。主要目的是确定胁迫是否会引起植物反应的改变，并确定任何胁迫诱导的生理或损伤反应的改变是否与对生长或产量的影响相关。响应监测绿色辣椒暴露于模拟酸雾单独，或结合在开放式现场室的臭氧与环境浓度。高酸雾和大气臭氧均通过抑制光合作用抑制绿色辣椒的生长和产量。高酸性雾的应用（即每周两次暴露于pH 1.68的雾，持续11周）导致净光合作用的显着抑制，叶片缓冲能力的降低，以及大量的叶片损伤。这些变化在百分比的基础上紧密地抵消了生长和产量的下降。与此相反，环境臭氧对净光合作用，生长和产量有类似的影响，但提高叶片的缓冲能力，并没有造成明显的伤害。植物响应的污染特定的差异进行了讨论，相对于全植物的碳代谢和生理补偿。
The relationship among physiological, injury, growth, and yield responses was examined in field-grown green pepper (Capsicum annuum L. ;California Wonder') subjected to two airborne environmental stresses. The primary objectives were to determine if the stresses could cause alterations in the plant responses, and to determine if any stress induced alterations in physiological or injury responses were correlated with effects on growth or yield. Responses were monitored in green pepper exposed to simulated acidic fog alone, or in combination with ambient concentrations of ozone in open-top field chambers. Both highly acidic fog and ambient ozone depressed green pepper growth and yield responses via the inhibition of photosynthesis. Applications of highly acidic fog (i.e. two exposures of pH 1.68 fog per week for 11 weeks) caused a significant depression of net photosynthesis, reduction in leaf buffering capacity, and an extensive amount of leaf injury. These alterations closely paralleled decreases in growth and yield on a percentage basis. In contrast, ambient ozone had similar impacts on net photosynthesis, growth and yield, but enhanced leaf buffering capacity, and caused no visible injury. The pollutant-specific differences in plant response are discussed with respect to whole-plant carbon metabolism and physiological compensation.