水资源保护2018，Vol.34Issue(3)：96-103,8.DOI:10.3880/j.issn.1004-6933.2018.03.16
自然河道中沉水植物苦草对水流的生理响应
Physiological response of Vallisneria natans to water flow in wild river
摘要
Abstract
A field experiment was conducted to investigate the response rule of the growth and physiological parameters of Vallisneria natans to the water flow.The results show that the morphological characteristics of Vallisneria natans can be affected by water flow of 30 ～ 40cm/s.The leaves of Vallisneria natans plants were smaller and narrower in the flowing water than that in static water.The flowing water improved the production of protein and soluble sugar in plant cells,and induced the concentration of active oxygen species,such as H202,to increase during the plant growth and reproductive growth season,resulting in the increase of activity of antioxidant enzymes SOD and CAT to reduce the damage of reactive oxygen.The flow velocity (30 ～40cm/s) had some effects on the growth of Vallisneria natans,but it did not affect the application of Vallisneria natans on the river ecological restoration.关键词
苦草/水流/相对电导率/抗氧化酶/可溶性蛋白/可溶性糖Key words
Vallisneria natans/water flow/relative conductivity/antioxidant enzyme/soluble protein/soluble sugar分类
资源环境引用本文复制引用
张松贺,袁树东,韩冰..自然河道中沉水植物苦草对水流的生理响应[J].水资源保护,2018,34(3):96-103,8.基金项目
国家自然科学基金(51579075和51379063) （51579075和51379063）
江苏省自然科学基金优秀青年项目(BK20160087)) （BK20160087）
