Environmental Responses of the Post-lower Illumination CO(2) Burst as Related to Leaf Photorespiration.
Environmental Responses of the Post-lower Illumination CO(2) Burst as Related to Leaf Photorespiration.
复制标题
低照度后 CO(2) 爆发的环境响应与叶片光呼吸有关。
DOI：
10.1104/pp.73.1.25
复制
发表时间：
1983
期刊：
影响因子：
7.4
通讯作者：
Clanton C. Black
中科院分区：
文献类型：
--
作者：
H. Max Vines;Z. Tu;Allan M. Armitage;Sheng;Clanton C. Black
随着叶片辐照度的增加，C(3)植物叶片表现出单次瞬态CO(2)爆发。这种低照度后的CO(2)爆发（PLIB）对辐照度、O(2)和CO(2)浓度的变化以及温度的变化都很敏感。当O(2)浓度高于环境时，PLIB逐渐增大，而CO(2)浓度高于环境时，PLIB逐渐减小。PLIB与其他测量光呼吸和光合作用的方法一样，对环境表现出许多响应，因此被提出作为C(3)植物光照叶片光呼吸的测量方法。虽然PLIB不能用作光呼吸的定量测量，但我们认为PLIB是一种快速、简单、相对便宜、无损的方法，可用于评估空气中完整的C(3)叶片的光呼吸。
As leaf irradiance is decreased in increments, a single transient CO(2) burst is exhibited by C(3) plant leaves. This post-lower illumination CO(2) burst (PLIB) is sensitive to changes in irradiance, to changes in the concentrations of O(2) and CO(2), and to temperature. Increasing O(2) concentrations above ambient produces a progressively larger PLIB while increasing CO(2) concentrations above ambient produces a progressively smaller PLIB. The PLIB, which exhibits many responses to environment common with other methods for measuring photorespiration and photosynthesis, is proposed as a measure of photorespiration in illuminated leaves of C(3) plants. Although the PLIB cannot be used as a quantitative measurement of photorespiration, we propose that the PLIB is a rapid, easy, relatively inexpensive, nondestructive method for evaluating photorespiration in intact illuminated C(3) leaves in air.