尾叶樱桃(Cerasus dielsiana(Schneid.)Yu et Li)特产于中国亚热带山区,是一种集观赏、食用、药用、材用和生态防护等多用途为一体的代表性野生樱属植物,具有广阔的开发利用前景。本文全面系统地概述了其种质资源在自然地理分布、群落...尾叶樱桃(Cerasus dielsiana(Schneid.)Yu et Li)特产于中国亚热带山区,是一种集观赏、食用、药用、材用和生态防护等多用途为一体的代表性野生樱属植物,具有广阔的开发利用前景。本文全面系统地概述了其种质资源在自然地理分布、群落生态学特性、表型变异规律、系统发育与分类现状、谱系地理及其演化历史、繁育技术、综合利用价值的最新进展。在上述结论的基础上,笔者还提出了当前存在问题与展望,旨在为国产优良樱属种质资源的保育以及新品种的开发利用提供参考。展开更多
The effect of weak light on the peroxidation of membrane_lipid of one_year_old cherries ( Prunus pseudocerasus L. 'Laiyang') was studied by whole_tree shading. The results showed that the net photosynthetic...The effect of weak light on the peroxidation of membrane_lipid of one_year_old cherries ( Prunus pseudocerasus L. 'Laiyang') was studied by whole_tree shading. The results showed that the net photosynthetic rate of cherry leaves under weak light was remarkably lower; the activity peroxidase (POD) increased when light intensity decreased; the activity of catalase (CAT) showed an opposite trend, and it was positively correlated with light intensity; the activity of superoxide dismutase (SOD) increased under 366 μmol·m -2 ·s -1 and 533.8 μmol·m -2 ·s -1 light intensity, but decreased under 228.8 μmol·m -2 ·s -1 and 83.9 μmol·m -2 ·s -1 light intensity. A remarkable increase of malondialdehyde (MDA), a product of membrane_lipid peroxidation, was also observed in cherry leaves when treated with weak light, indicating more serious peroxidation in the membrane.展开更多
文摘尾叶樱桃(Cerasus dielsiana(Schneid.)Yu et Li)特产于中国亚热带山区,是一种集观赏、食用、药用、材用和生态防护等多用途为一体的代表性野生樱属植物,具有广阔的开发利用前景。本文全面系统地概述了其种质资源在自然地理分布、群落生态学特性、表型变异规律、系统发育与分类现状、谱系地理及其演化历史、繁育技术、综合利用价值的最新进展。在上述结论的基础上,笔者还提出了当前存在问题与展望,旨在为国产优良樱属种质资源的保育以及新品种的开发利用提供参考。
文摘The effect of weak light on the peroxidation of membrane_lipid of one_year_old cherries ( Prunus pseudocerasus L. 'Laiyang') was studied by whole_tree shading. The results showed that the net photosynthetic rate of cherry leaves under weak light was remarkably lower; the activity peroxidase (POD) increased when light intensity decreased; the activity of catalase (CAT) showed an opposite trend, and it was positively correlated with light intensity; the activity of superoxide dismutase (SOD) increased under 366 μmol·m -2 ·s -1 and 533.8 μmol·m -2 ·s -1 light intensity, but decreased under 228.8 μmol·m -2 ·s -1 and 83.9 μmol·m -2 ·s -1 light intensity. A remarkable increase of malondialdehyde (MDA), a product of membrane_lipid peroxidation, was also observed in cherry leaves when treated with weak light, indicating more serious peroxidation in the membrane.