期刊论文

Effects of Manganese (Mn) on the performances of photosystems Ⅰ and Ⅱ in Melia azedarach young plant

Zhu, F.

中文

生态学报

1000-0933

2020

40

6

2019-2027

10.5846/stxb201810282325

2017NK2171:湖南省重点研发计划项目 2014-4-62:引进国际先进林业科学技术项目项目) 2013-R09:国家林业和草原局林业软科学研究项目 :湖南省林业厅科技项目

本校为第一且通讯机构

重金属锰严重抑制植物的光合作用,影响Mn污染地区植被恢复。为给Mn污染地区植被恢复提供合适的树种,以木本植物苦楝为研究对象,分别将0、10 g和30 g的MnCl_2(CK、L1和L2)溶于纯水中配成溶液掺入盆栽土壤,通过快速叶绿素荧光诱导动力学曲线、820 nm光吸收曲线以及光合气体交换参数测定技术,研究重金属Mn对苦楝叶片光系统I(PSI)、光系统Ⅱ(PS Ⅱ)性能及其协调性的影响。结果表明,Mn胁迫下,苦楝叶片PSⅡ性能指数(PI_(ABS))表现为L2

Environmental pollution by heavy metals is becoming a serious problem globally. Excess Manganese (M n) can inhibit the photosynthetic process, which consequently results in a reduction of phytoremediation of soils polluted by heavy metals. In this study, Melia azedarach which distributed widely in south China was employed as experimental material. MnCl2(analytically pure) (0, 10 and 30 g) were mixed with pure water first and the mixture solution was divided into 10 equal parts to add to the pots every day, respectively. They were designated as ...