文献类型：期刊文献

中文题名：芦苇叶片化感作用对加拿大一枝黄花生长及生理生化特性的影响

英文题名：Allelopathic effects of Phragmites communis leaves on the growth and physiobiochemical characteristics of Solidago canadensis

作者：刘成[1,2] 陈晓德[1] 吴明[2] 贺丽[1] 叶小齐[2] 范庭兴[1]

第一作者：刘成

机构：[1]三峡库区生态环境教育部重点实验室重庆市三峡库区植物生态与资源重点实验室西南大学生命科学学院,重庆北碚400715;[2]中国林业科学研究院亚热带林业研究所国家林业局杭州湾湿地生态系统定位研究站,浙江富阳311400

年份：2014

卷号：23

期号：3

起止页码：182-190

中文期刊名：草业学报

外文期刊名：Acta Prataculturae Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：中央级公益性科研院所基本科研业务费专项(RISF6146);浙江省重点科技创新团队项目(2010R50039);国家“十二五”科技支撑专题(2012BAC13B02)资助

语种：中文

中文关键词：化感;芦苇;加拿大一枝黄花;抗氧化酶;根系活力

外文关键词：allelopathy; Phragmites communis ; Solidago canadensis ; antioxidant enzyme; root activity

分类号：S564.2;Q945.7

摘要：采用砂培法研究了不同浓度（0，0．025，0．050和0．100gDW／mL）芦苇叶水浸提液对入侵植物加拿大一枝黄花的化感效应。结果表明，在试验过程中（O～45d），随芦苇浸提液浓度升高，加拿大一枝黄花基径和株高的累积生长量显著下降，死亡数随浓度升高明显上升；叶绿素含量随处理时间持续降低，且浓度越高叶绿素含量越低，而类胡萝卜素含量则呈先升高后降低之势；低浓度时，过氧化物酶（POD）和超氧化物歧化酶（SOD）活性随处理时间持续上升，但当浓度继续升高，则二者均呈先升高后降低之势；过氧化氢酶活性（CAT）和丙二醛（MDA）含量随芦苇叶浸提液浓度升高而上升，且二者随处理时间呈持续升高之势；可溶性蛋白含量和根系活力随处理浓度升高而降低，且该趋势随处理时间延长而加剧。可见，随浸提液浓度升高和处理时间延长，芦苇对加拿大一枝黄花化感胁迫效应增强。
A sandy culture experiment was conducted to study the allelopathic effects of different concentrations （0, 0.025 g DW/mL, 0. 05 g DW/mL and 0. 1 g DW/mL） of aqueous extract from Phragmites communis leaves on the growth and physiobiochemical characteristics of the invasive plant species Solidago canadensis. During the test （0-45 d）, cumulative growth of basal diameter and height of S. canadensis was significantly reduced with stronger extract concentrations while the mortality significantly increased. Chlorophyll content continued to decrease with time, and the higher the extract concentration the lower the chlorophyll content, while carotenoid content initially increased but then decreased. When treated at a low concentration （0. 025 g DW/mL）, the activities of peroxidase （POD） and superoxide dismutase （SOD） increased as processing time was prolonged, but when the concentration continued to rise, they both increased initially but then decreased. Catalase activity （CAT） and malondialdehyde （MDA） content increased when the concentration of extract in creased, and both increased with processing time. Soluble protein content and root activity decreased at higher concentrations, and the trend was exacerbated with prolonged processing. The results indicate that allelopathic effects of P. communis on S. canadensis became stronger with increased concentration and processing time.