庐山上的景天酸代谢植物

本文讨论庐山的景天酸代谢植物的分布、表现特征、代谢途径和生理生态。根据Kluge和Ting判断CAM植物的四条标准,庐山上的CAM植物分布于20多个科,其中有些种类具有重要的经济价值。根据植物对CO_2的固定途径不同,可把庐山上的CAM植物分为两种类型,一种是在个体发育所有阶段中始终保持CAM途径;另一种是随植物生长发育情况和环境条件的变化而改变CO_2固定途径。本文指出庐山上的CAM植物具有对干旱环境的适应性。

PLANTS OF CRASSULACEAN ACID METABOLISM IN LUSHAN MOUNTAIN

This paper discusses the distribution, character, metabolic pathway and physiological ecology of plants of crassulacean acid metabolism in Lushan Mountain. According to the four CAM plant-identifing standards proposed by Kluge and Ting, CAM plants in Lushan Mountain belong to 20-odd families, Some of which are of great economic importance.According to the pathway of carbon dioxide fixation, CAM plants in Lushan Mountain can be divided into two types: those of one type stick to the CAM pathway in all onto genetic stages and those of the other have different pathways of carbon dioxide fixation at different stages of its growth and development or under different environmental conditions. The paper also points out that one of the physiological ecological significance of CAM plants in Lushan Mountain is the adaption to the dry condition.