期刊论文

Effects of Pb and Cd combined stress on physiological characteristics of Ardisia japonica

中文

福建农林大学学报(自然科学版)

1671-5470

2021

50

3

390-397

10.13323/j.cnki.j.fafu(nat.sci.).2021.03.015

湖南省教育厅湖南省高等学校“双一流”建设项目（湘教通[2018]469号）； 国家林业局重点学科（林人发[2016]21号）； 湖南高校一流本科专业（园林专业）（湘教通[2019]138号）；

本校为第一机构

以3年生紫金牛为试验材料,研究6个铅(Pb)、镉(Cd)复合胁迫水平对其生理特性的影响,并利用相关性分析和主成分分析进行综合评价.结果表明:Pb浓度500 mg·kg~(-1)复合胁迫使紫金牛生长受抑制,30 d后植株个体出现死亡.对各项指标综合分析表明,紫金牛的MDA含量、植物组织含水量、Chl含量和SS含量与荧光参数F_v/F_m和qP之间具有较强的相关性,可以较好地评价紫金牛对Pb、Cd复合胁迫的响应规律.

To study the impact of heavy metal on the physiological features of woody plant,3-year-old Ardisia japonica was subject to 6 levels of lead (Pb)and cadmium (Cd)combined stress.Various physiological indexes were recorded on 0,15,30,45 and 60 d, and comprehensive assessment was conducted by means of correlation analysis and principal component analysis.The results showed that after undergoing combined stress of Pb concentration500 mg·kg~(-1),the growth of A.japonica was inhibited and several plants died after 30 d.Comprehensive analysis on vario...