叶面喷施硝酸盐对丁香叶片气孔动态、光合作用的影响

doi:10.7525/j.issn.1673-5102.2015.06.009

植物研究 ›› 2015, Vol. 35 ›› Issue (6): 843-847.doi: 10.7525/j.issn.1673-5102.2015.06.009

叶面喷施硝酸盐对丁香叶片气孔动态、光合作用的影响

王珂；刁健；杨瑞；胡彦波^*；孙广玉

东北林业大学生命科学学院，哈尔滨　150040

出版日期:2015-11-20 发布日期:2016-01-18
基金资助:

Effects of Leaf-spraying Nitrate on Stomatal Dynamics and Photosynthesis of Syringa oblata Lindl. Leaves

WANG Ke；DIAO Jian；YANG Rui；HU Yan-Bo^*；SUN Guang-Yu

College of Life Science,Northeast Forestry University,Harbin　150040

Online:2015-11-20 Published:2016-01-18
Supported by:

摘要/Abstract

摘要： 以哈尔滨市绿化植物紫丁香（Syringa oblata Lindl.）为研究对象，借助便携式光合测定系统和电子显微镜，研究了叶面喷施硝酸盐（50 mmol·L^-1NaNO₃溶液）对叶片气孔动态（气孔分布、气孔开度）和光合生理过程（光合—呼吸的光诱导、光化学效率、叶绿素含量以及细胞间隙二氧化碳浓度、气孔导度）的影响。结果表明：叶片上、下表皮均有气孔、腺毛分布，喷施处理第5 d时，叶片的气孔开度和导度、光合速率、叶绿素含量等未受到显著影响，但14 d时，气孔关闭、导度下降，光合—呼吸的光诱导过程受到显著影响。

关键词: 紫丁香, 硝酸盐, 光合诱导, 气孔开度, 暗呼吸, 光呼吸

Abstract: With Syringa oblata Lindl. seedling, a greening tree species in Harbin, we investigated the effects of leaf-spraying nitrate(50 mmol·L^-1 NaNO₃) on stomatal behavior and photosynthetic physiology by gas-exchange and electron microscope techniques. We analyzed stomatal distribution in upper and lower epidermis and stomatal opening as well as photosynthesis-dark respiration induction, photochemical efficiency, chlorophyll content, intercellular CO₂ concentration and stomatal conductance. The stomata and glandular hairs are distributed in the upper and lower epidermis, the effects of leaf-spraying depend on treatment time. For five-day treatment, there were no significant differences in the parameters of stomatal behavior and photosynthesis between the treated and controlled leaves. However, 14-day treatment significantly declined stomatal opening and conductance, and inhibited photosynthesis-dark respiration.

Key words: Syringa oblata seedling, nitrate, photosynthesis induction, stomatal opening, dark respiration, photorespiration

中图分类号:

王珂；刁健；杨瑞；胡彦波*；孙广玉. 叶面喷施硝酸盐对丁香叶片气孔动态、光合作用的影响[J]. 植物研究, 2015, 35(6): 843-847.

WANG Ke；DIAO Jian；YANG Rui；HU Yan-Bo*；SUN Guang-Yu. Effects of Leaf-spraying Nitrate on Stomatal Dynamics and Photosynthesis of Syringa oblata Lindl. Leaves[J]. Bulletin of Botanical Research, 2015, 35(6): 843-847.

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叶面喷施硝酸盐对丁香叶片气孔动态、光合作用的影响

Effects of Leaf-spraying Nitrate on Stomatal Dynamics and Photosynthesis of Syringa oblata Lindl. Leaves

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