摘要
在建设海绵城市的背景下,为筛选出适用于园林绿化的耐淹植物,对八宝景天(Sedum spectabile)、三七景天(Sedum aizoon)、鸢尾(Iris tectorum)、马蔺(Iris lacteal var.chinensis)、万寿菊(Tagetes erecta)和萱草(Hemerocallis fulva)6种草本植物进行持续水淹胁迫处理.6种生理指标测定结果发现:持续水淹胁迫下,八宝景天、三七景天、鸢尾、马蔺的叶绿素含量、叶绿素a/b值、保护酶SOD、CAT和可溶性蛋白含量显著下降(P<0.05)并低于对照组水平,丙二醛(MDA)大量积累;而万寿菊和萱草则在波动性变化后重新恢复正常水平.经主成分分析和隶属函数分析比较得出六种植物的耐淹性依次为,萱草>万寿菊>马蔺>三七景天>八宝景天>鸢尾.
In the context of construction of ＂Sponge City＂, six herbaceous plants, Sedum spectabile,Sedum aizoon, Iris tectorum, Iris lacteal var. chinensis, Tagetes erecta and Hemerocallis fulva, were choose for screening of flood-resistant plants and treated with continuous waterlogging treatment. Six physiological indexes were analyzed and the results showed that the chlorophyll content, the ratio of chlorophyll a/b, the contents of the super dismutase（SOD）, catalase（CAT） and soluble protein of Sedum spectabile,Sedum aizoon, Iris tectorum and Iris lacteal var. chinensis decreased significantly and lower than the level of the control treatment under the stress of waterlogging, the content of malondialdehyde（MDA） accumulated greatly. However, these physiological indexes of Tagetes erecta and Hemerocallis fulva could be recovered to the normal level after the fluctuation. Using the principle component analysis and subordinative function, the waterlogging tolerance of the six herbaceous plants were ranked as follows： Hemerocallis fulva Tagetes erecta Iris lacteal var.chinensis Sedum aizoon Sedum spectabileIris tectorum.
作者
高琦
沈广爽
杨彤
薛红丽
王凯林
石福臣
Gao Qi;Shen Guangshuang;Yang Tong;Xue Hongli;Wang Kailin;Shi Fuchen(Study of Life Science, Nankai University, Tianjin 300071, China;Tianjin Municipal Engineering Design＆Research Institute, Tianjin 30051, China;Bioengineering Department, Jiuquan Vocational and Technical College, Jiuquan 735000, China)
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第2期1-8,共8页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
天津市市政工程设计研究院科技发展项目(201601271)
市政基础设施耐久性检测平台建设(14TXSYJ C00453)
关键词
草本植物
水淹胁迫
生理响应
耐淹性
herbaceous plants
waterlogging stress
physiological responses
waterlogging tolerance
