新疆师范大学学报（自然科学版）Issue(1)：38-45,8.
新疆不同生境下的22种藓类植物茎和叶的比较解剖学观察
Anatomical Comparison of the Stems and Leaves of 22 Species of Mosses in Different Habitats in Xinjiang
摘要
Abstract
Through cross section of the stems and leaves done by hand ,observing and studying the stems and leaves of 22 species of mosses in different water conditions ,the results showed that the cell wall of mosses’ leaf which were collected from dry condition is very thick ,and reduce the loss of water .Costa was composed from thick wall cells and large main cells ,Their role is that reduce the evaporation of water and guide water respectively .But this structure is not absolutely .Epidermic cell is 1~2 layers ,have a dif-ferentiation of inside and outside of cortex or no differentiation .The mosses that growing in shady and moist condition is different from dry condition ,and itscell wall of leaf is thick ,the costa is thin ,possibly related to the condition .But Pylaisia steerei have no costa .It is possibly that the costa’ s degradation is related to the environment with easy access to water .The epidermic cell is one layers ,have a differentia-tion of inside and outside of cortex .In the aquatic environment cell wall of mosses’leaf is flimsy ,the epi-dermis cell is one layers ,and have no differentiation of cortex ,w hich is mostly composed of large paren-chyma cells ,it can improve the cell metabolism .Whatever living condition ,the cross-sections of stem shape is closely related to the growing and arrangement of leaves .关键词
藓类植物/比较解剖学/生境/徒手切片Key words
Mosses/Anatomical structure/Habitat/Hand sectioning分类
农业科技引用本文复制引用
帕提姑丽·吾买尔,库热西·马木提汗,米娜瓦尔·艾克日木,买买提明·苏来曼..新疆不同生境下的22种藓类植物茎和叶的比较解剖学观察[J].新疆师范大学学报（自然科学版）,2014,(1):38-45,8.基金项目
国家自然科学基金（NO 3．1160040）和自治区高校科研项目计划（XJEDU2011103）。 （）
