海菜花种植水对2种沉水植物抗逆性的影响  

Effects of Planting Water on Stress Resistance of Two Submerged Plants in Ottelia acuminata

作　　者：杨栋林[1,2] 方轶男 潘巍 侯丛林 吴荻 廖文雪[2] YANG Dong-lin;FANG Yi-nan;PAN Wei(Key Laboratory of Rare and Endangered Animals and Plants,Ministry of Education,Guilin,Guangxi 541004;College of Life Sciences,Guangxi Normal University,Guilin,Guangxi 541004)

机构地区：[1]珍稀濒危动植物生态与环境保护教育部重点实验室,广西桂林541004 [2]广西师范大学生命科学学院,广西桂林541004

出　　处：《安徽农业科学》2021年第1期66-69,共4页Journal of Anhui Agricultural Sciences

基　　金：广西高校科学技术研究项目(YB2014056);广西师范大学教育教学改革项目(2017XJGB40)。

摘　　要：海菜花(Ottelia acuminata)作为国家Ⅱ级保护植物,是一种既可观赏又可食用的植物。就海菜花生长过程中产生的次生物质,以种植水的形式对2种沉水植物(菹草和密刺苦草)的生长过程产生的影响进行研究。结果表明,密刺苦草在不同浓度的海菜花种植水中过氧化物酶(POD)和超氧化物歧化酶(SOD)活性明显下降,丙二醛(MDA)含量下降,总叶绿素浓度亦有明显的下降,说明密刺苦草对于海菜花种植水中的化感物质表现出明显抗性,海菜花对于密刺苦草的生长起抑制作用。菹草SOD活性出现了明显下降,MDA含量呈先下降后上升的趋势,叶绿素浓度亦是先下降后上升,但是最初呈现的下降趋势均不明显。说明海菜花的化感作用对于密刺苦草比菹草的敏感,密刺苦草更容易受到海菜花化感物质的影响。As a secondary protected plant in China,Ottelia acuminata is an ornamental and edible plant.In this paper,the secondary substances produced during the growth of sea cauliflower were used to study the effects of planting water on the growth of two submerged plants(Vallisneria natans and Potamogeton crispus).The results showed that the peroxidase(POD)activity,the superoxide dismutase(SOD)activity and the malondialdehyde(MDA)content in different concentrations of sea cauliflower planting water significantly decreased,the chlorophyll concentration also decreased significantly,which indicated that Vallisneria natans showed obvious resistance to allelochemicals in Ottelia acuminatea planting water,and Ottelia acuminata inhibited the growth of Vallisneria natans.The SOD activity of Potamogeton crispus showed a significant decline,the MDA content showed first decline and then upward trend,and the chlorophyll concentration also first declined and then increased,but the initial downward trend was not very obvious.It showed that the allelopathic effect of Ottelia acuminata was more sensitive to Vallisneria natans than Potamogeton crispus,which was more susceptible to the allelopathy of Ottelia acuminatea.

关 键 词：海菜花 种植水 沉水植物 抗逆性 影响 

分 类 号：Q945[生物学—植物学]