一些止汗剂的对抗作用。
Some counteractive effects of antitranspirants.
机构信息
Department of Water Science and Engineering, University of California, Davis, California 95616.
出版信息
Plant Physiol. 1972 May;49(5):722-4. doi: 10.1104/pp.49.5.722.
Abstract
Some previously unexpected effects of antitranspirants on stomata and plant growth are described, and their implications are discussed. Antitranspirant films increase the resistance to diffusion of water vapor from stomata. This increases leaf water potential and results in wider stomatal apertures immediately under the film, as well as on those parts of a partially treated leaf which are not covered by the film. Antitranspirants are expected to curtail growth via reduced photosynthesis. However, by increasing plant water potential they can enhance the growth of fruits and shoots.
摘要
本文描述了抗蒸腾剂对气孔和植物生长的一些先前未预料到的影响，并讨论了其意义。抗蒸腾剂薄膜增加了水蒸气从气孔扩散的阻力。这会增加叶片水势，导致薄膜下立即出现更大的气孔孔径，以及部分处理叶片中未被薄膜覆盖的部分。抗蒸腾剂预计会通过降低光合作用来限制植物生长。然而，通过增加植物水势，它们可以促进果实和嫩枝的生长。
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