本项目以贵州喀斯特高原藓类植物为代表,野外和室内相结合,利用光学显微镜、电子显微镜和组织培养等技术手段，探索藓类蒴齿的形态结构多样性及其对孢子释放功能的影响，对喀斯特生境的适应性特征及规律。内容含：(1)藓类植物蒴齿形态特征研究；(2）藓类植物蒴齿结构特征研究；(3)蒴齿水湿运动行为与孢子释放关系的研究；(4)藓类蒴齿结构的类型及不同类型释放孢子功能的差异研究；(5)湿度、光照、温度和风等环境因子对蒴齿释放孢子的影响；(6)喀斯特地貌对蒴齿释放孢子的影响。. 以贵州高原为中心的中国西南喀斯特山区,是全球喀斯特山地面积最大、分布最集中、类型最复杂的区域之一,具有实施本项目的有利地域条件。本项目对深入研究中国西南喀斯特地区藓类形态结构多样性、功能和适应具有重要意义，并可为贵州喀斯特山区藓类物种的繁殖和保护提供基础性的科学数据和资料。

Peristome is one of important structures for mosses, but related research on this issue is very weak in karst plateau both in China and abroad. By the means of the Electron Microscope, Optical microscope and Plant Tissue Culture. This project will study on diversity of peristome morphology of mosses and their function from karst mountain area in southwest China. Main contents of this project: diversity of peristome morphology of mosses in karst mountain area; variety of peristome structure of mosses in karst mountain area;multiformity of peristome groups of mosses and their adapt features in karst mountain area; diversity of peristome device of mosses in karst mountain area; ecological factor effects for spore discharging of mosses in karst mountain area ;ecological significance of peristome for spore discharge in karst plateau area in southwest China..Karst mountain areas in southwest China are very typical, which occupied a karst distribution of the largest, most concentrated and the most affected areas in the world. This project has important theoretical significance to study the diversity of morphology and structure of mosses and conservation biodiversity in karst mountain areas in southwest China.