应用生态学报2001，Vol.12Issue(2)：223-225,3.
增强的UV-B辐射对春小麦植株化学成分、
真菌定殖和分解的影响
Effect of enhanced UV-B radiation on chemical composition, fungnl colonization and decomposition of spring wheat plant.
李元 1祖艳群 1王勋陵2
作者信息
- 1. 云南农业大学环境科学系,
- 2. 兰州大学生物系,
- 折叠
摘要
Abstract
Under UV-B radiation, the CHO (soluble carbohydrate) concentration in leaves decreased significantly, while the concentrations of HCel (holocellulose) and protein in leaves and that of HCel in stems increased significantly. HCel concen
tration in roots did not change significantly. Under UV-B radiation, the colonization rates of Penicillium ochro-chloron
and Aspergillus niger on leaves and stems increased significantly during growing phase, those of Trichoderrna koningii
and Aureobasidium pullulans were on the contrary, while that of Aspergillus terreus did not change obviously. Afret 60 and 100 days of decomposition, the decomposition rates of leaves and stems increased significantly. The decomposition rate of leaves was positively correlated with the oncentration of HCel and soluble protein, but negatively with that
of CHO. The decomposition rate of stems was also positively correlated with HCel concentration. Under enhanced UVB radiation, the changes in chemical composition of spring wheat and in fungal colonization rate, and the increase in decomposition rates might resulted in a faster nutrient turnover in heat field ecosystem and a higher nutrient storage in soil.
关键词
UV-B辐射 春小麦 化学成分 真菌定殖 分解分类
农业科技引用本文复制引用
李元,祖艳群,王勋陵..增强的UV-B辐射对春小麦植株化学成分、
真菌定殖和分解的影响[J].应用生态学报,2001,12(2):223-225,3.
