桃儿七不同器官中营养成分分布状况及其生态学意义  

Nutrition Distribution Pattern in Different Organs of Sinopodophyllum hexandrum(Royle) Ying and Its Ecological Significance.

作　　者：马绍宾[1] 杨桂英[1] 赵念玺[1] 

机构地区：[1]云南大学生物系,昆明650091

出　　处：《生态学杂志》2002年第4期65-67,共3页Chinese Journal of Ecology

基　　金：国家自然科学基金 ( 3986 0 0 2 2 );云南省科委基础应用基金项目 ( 98C0 0 2Q)资助

摘　　要：Nutrition contents including total sugar,protein and mineral elements in different organs of Sinopodophyllum hexandrum (Royle) Ying (Berberidaceae) have been analyzed.The result shows that main nutrition contents (especially phosphorus) are positively correlated with the importance of plant organs in sexual reproduction process.Therefore phosphorus can be used as a good index to calculate reproductive allocation and reproductive effort.The fact that root and rhizome contain more sugar than other organs indicates that root and rhizome have storage function.Higher sugar content in pericarp and placenta adapts to animal dispersal for seed and fruit.Nutrition distribution pattern in different organs reflects reproductive strategy and biochemical-ecological adaptation of the plant.Nutrition contents including total sugar,protein and mineral elements in different organs of Sinopodophyllum hexandrum (Royle) Ying (Berberidaceae) have been analyzed.The result shows that main nutrition contents (especially phosphorus) are positively correlated with the importance of plant organs in sexual reproduction process.Therefore phosphorus can be used as a good index to calculate reproductive allocation and reproductive effort.The fact that root and rhizome contain more sugar than other organs indicates that root and rhizome have storage function.Higher sugar content in pericarp and placenta adapts to animal dispersal for seed and fruit.Nutrition distribution pattern in different organs reflects reproductive strategy and biochemical-ecological adaptation of the plant.

关 键 词：植物生殖 桃儿七 器官 营养成分分布 生态学意义 

分 类 号：Q948[生物学—植物学]