|本期目录/Table of Contents|

[1]姜永雷,唐探,陈嘉裔,等.镉胁迫对水蕨幼苗叶绿素荧光参数和生理指标的影响[J].江苏农业科学,2015,43(09):357-360.
 Jiang Yonglei,et al.Effects of cadmium stress on chlorophyll fluorescence parameters and physiological indices of Ceratopteris thalictroides seedlings[J].Jiangsu Agricultural Sciences,2015,43(09):357-360.
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镉胁迫对水蕨幼苗叶绿素荧光参数和生理指标的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第43卷
期数:
2015年09期
页码:
357-360
栏目:
资源与环境
出版日期:
2015-09-25

文章信息/Info

Title:
Effects of cadmium stress on chlorophyll fluorescence parameters and physiological indices of Ceratopteris thalictroides seedlings
作者:
姜永雷 唐探 陈嘉裔 冯程程 黄晓霞
西南林业大学园林学院,云南昆明 650224
Author(s):
Jiang Yongleiet al
关键词:
镉胁迫水蕨幼苗叶绿素荧光PSⅡ生理指标
Keywords:
-
分类号:
Q945.78;S682.350.1
DOI:
-
文献标志码:
A
摘要:
以一年生水蕨幼苗为试验材料,用不同浓度的CdCl2[0(对照组)、20、40、60 mg/L]溶液进行胁迫处理,研究其叶绿素荧光特性对重金属Cd2+胁迫的响应。结果表明:随着Cd2+浓度的增加,水蕨幼苗叶片的初始荧光Fo和非光化学猝灭系数(qN)呈显著增加趋势,而PSⅡ最大光化学效率(Fv/Fm)、PSⅡ实际光合效率(Yield)、光化学猝灭系数(qP)和电子传递ETR显著降低,说明CdCl2溶液处理下的水蕨幼苗PSⅡ受到损伤,且损伤程度随着处理浓度的增大而加剧。此外,Cd2+胁迫引起水蕨幼苗叶绿素含量下降;且随着Cd2+浓度的增加,细胞内膜脂过氧化产物丙二醛(MDA)和脯氨酸(proline)含量也显著增加。说明水蕨幼苗代谢机制只能抵御较低浓度的Cd2+胁迫,而高浓度的Cd2+处理将对该植株的叶绿素荧光性状及生长发育造成严重的伤害。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2015-09-05
基金项目:“省部级重点学科、省高校重点实验室及校实验室共享平台”资助项目;西南林业大学大学生科技创新基金资助(编号:1366)。
作者简介:姜永雷(1988—),男,河南周口人,硕士研究生,研究方向为园林植物。E-mail:10-29jyl@163.com。
通信作者:黄晓霞,博士,副教授,主要从事植物生理生态研究。E-mail:huangxx@swfu.edu.cn。
更新日期/Last Update: 2015-09-25