干旱胁迫环境下的胡杨叶片气孔变化

doi:10.13866/j.azr.2018.05.14

Abstract

Abstract: The study on stomatal characteristics of Populus euphratica leaves is helpful to understand the characteristics of water use and drought resistance mechanism under drought stress. In this paper, three typical profiles of P. euphratica, i.e. Yengisu, Aragan, Yikanbujima, were selected from the lower reaches of the Tarim River. The variation of stomatal density and stomatal length in leaves of P. euphratica under different drought stress gradients was investigated, and the response difference between staminiferousand female plants under drought stress was analyzed. Result are as follows: ① The stomatal density of P. euphratica leaves was increased but the leaf stomatal length was decreased with the increase of drought stress; ② Under drought stress, there were some differences in leaf stomatal density and stomatal length between staminiferous and female P. euphratica plants, which showed that the growth rate of stomatal density in leaf epidermis of staminiferous P. euphratica plant was low under drought stress.The stomatal length of lower epidermis of female P. euphratica plant was significantly longer than that of male; ③ The change of stomatal density and length of P. euphratica leaves reflected that the drought resistance of different sexes was different, and the water retention and drought resistance of staminiferous plant of P. euphratica were higher than those of female plant.

Key words: Populus euphratica, stomatal density, stomatal length, reaches, Tarim River

XIA Zhen-hua, CHEN Ya-ning, ZHU Cheng-gang, ZHOU ying-ying,CHEN xiao-lin. Stomatal Change in Leaves of Population euphratica under Drought Stress[J]., 2018, 35(5): 1111-1117.

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Stomatal Change in Leaves of Population euphratica under Drought Stress

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