|本期目录/Table of Contents|

[1]李笑媛 陈润芍 许安妮 余路路 王新厦 曾 建,**.川芎对镉铅及其复合处理的生理响应*[J].应用与环境生物学报,2019,25(01):1-10.[doi:10.19675/j.cnki.1006-687x.2018.05022]
 LI Xiaoyuan,CHEN Runshao,XU Anni,et al.The physiological response to cadmium, lead and their combination stress in Ligusticum chuanxiong Hort.*[J].Chinese Journal of Applied & Environmental Biology,2019,25(01):1-10.[doi:10.19675/j.cnki.1006-687x.2018.05022]
点击复制

川芎对镉铅及其复合处理的生理响应*()
分享到:

《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年01期
页码:
1-10
栏目:
研究论文
出版日期:
2019-02-25

文章信息/Info

Title:
The physiological response to cadmium, lead and their combination stress in Ligusticum chuanxiong Hort.*
文章编号:
201805022
作者:
李笑媛1 陈润芍1 许安妮1 余路路1 王新厦1 曾 建1 2**
1四川农业大学资源学院 成都 611130
2四川农业大学资源与地理信息技术研究所 成都 611130
Author(s):
LI Xiaoyuan1 CHEN Runshao1 XU Anni1 YU Lulu1 WANG Xinxia1 & ZENG Jian1 2**
1 College of Resources, Sichuan Agricultural University, Chengdu 611130, China?
2 Institute of Natural Resources and Geographic Information Technology, Sichuan Agricultural University, Chengdu 611130, China
关键词:
重金属川芎光合作用富集能力次生代谢产物
Keywords:
heavy metal Ligusticum chuanxiong photosynthesis accumulative ability secondary metabolite
DOI:
10.19675/j.cnki.1006-687x.2018.05022
摘要:
选取四川道地产区的川芎(Ligusticum chuanxiong Hort. )为研究材料,采用盆栽控制进行模拟镉(Cd)、铅(Pb)及其复合处理实验,研究重金属在川芎体内的吸收和分配规律,探讨Cd、Pb及其复合处理下川芎的生理响应机制。实验包括四个处理,分别为对照处理(0 mg kg-1 Cd 和0 mg kg-1 Pb),镉处理(5 mg kg-1 Cd ),铅处理(500 mg kg-1 Pb)及其复合处理(5 mg kg-1 Cd + 500 mg kg-1 Pb)。研究结果表明,Pb主要富集在根部,而Cd富集在根部与根茎;Pb促进了Cd从地下部向地上部的转移,但抑制了Cd在根茎和叶片中的富集,复合处理显著降低了川芎根茎和地上部分Cd的积累。与对照处理相比,Cd、Pb单一处理抑制了川芎叶片的光合作用,显著降低了净光合速率(Pn)、气孔导度(Gs)、胞间CO2浓度(Ci)、蒸腾速率(Tr)、叶绿素a(Chla)、叶片瞬时水分利用效率和根系活力,其中Cd处理对植株的胁迫相较于Pb处理负面影响更加显著。与Cd处理相比,复合处理显著提高了植株的实际光合效率(YII)和光化学淬灭(qP),降低了非光化学淬灭(NPQ),川芎叶片具有更强的光合潜力。在次生代谢产物合成中,Cd处理显著降低根茎中阿魏酸和川芎嗪含量,Pb处理显著降低根茎中藁本内酯含量;相较于Cd单一处理,复合处理显著增加了根茎中阿魏酸的含量。上述结果表明,川芎受到Pb处理的毒害效应弱于Cd处理。复合处理下,川芎通过提高叶片的光合潜力,水分利用效率和根系活力缓解重金属的毒害。
Abstract:
Ligusticum chuanxiong Hort. from geo-authentic habitats in Sichuan province was selected as research material in this experiment. Pot experiments were used to simulate cadmium , lead and their combined treatments in order to investigate the absorption and distribution characteristic of heavy metals, and reveal the physiological response to heavy metal stress in L. chuanxiong. In this experiment, it included four treatments, such as control treatment (0 mg kg-1 Cd and 0 mg kg-1 Pb), cadmium treatment (5 mg kg-1 Cd) , lead treatment (500 mg kg-1 Pb) and their combined treatment (5 mg kg-1 Cd + 500 mg kg-1 Pb). The results showed that Pb was mainly concentrated in the roots , but Cd was enriched in roots and rhizomes. The existence of Pb promoted the transfer of Cd from the underground to the upper part, but inhibited the enrichment of Cd in rhizomes and leaves . In the combined treatment s, the accumulation of Cd in rhizome and aboveground parts of L. chuanxiong was significantly reduced. Compared with the controls, Cd and Pb treatments significantly redu ced the net photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 concentration (Ci), transpiration rate (Tr), chlorophyll a ( Chla) leaf instantaneous, water use efficiency and root activity in L. chuanxiong. Furthermore, the stress effect of Cd treatment was more significant than that of Pb treatment. Compa red with Cd treatment, the photosynthetic potential of L. chuanxiong was improved under the combined treatment by increasing the photosynthetic efficiency (YII) and photochemical quenching (qP) and decreasing the non-photochemical quenching (NPQ). As for secondary metabolites synthesis , Cd treatment significantly decreased ferulic acid and tetramethylpyrazine content in rhizomes , while Pb treatment significantly decreased ligustilide content . Obviously , their combination significantly increased the ferulic acid content in rhizomes in comparison to Cd treatment . These results indicated that the toxicity of Pb was weaker than that of Cd in L. chuanxiong . Under combined treatment, L. chuanxiong can alleviate heavy metal toxicity by increasing photosynthetic potential of leaves , water use efficiency and root activity.

相似文献/References:

[1]谢思琴,顾宗濂,周德智.施垃圾堆肥拌CaCO3对蔬菜中重金属的累积影响[J].应用与环境生物学报,1995,1(03):260.
 Xie Siqin,Gu Zonglian,Zhou Dezhi.EFFECT OF APPLICATION OF GARBAGE COMPOST WITH CaCO3 ON THE ACCUMULATION OF HEAVY METALS IN VEGETABLES[J].Chinese Journal of Applied & Environmental Biology,1995,1(01):260.
[2]许木启,王子健.利用浮游动物群落结构与功能特征监测乐安江-鄱阳湖口重金属污染[J].应用与环境生物学报,1996,2(02):169.
 Xu Muqi,Wang Zijian.MONITORING OF HEAVY METAL POLLUTION IN THE LEAN REVER AND POYANG LAKE WITH ZOOPLANKTONS[J].Chinese Journal of Applied & Environmental Biology,1996,2(01):169.
[3]郑文教,王文卿,林鹏.九龙江口桐花树红树林对重金属的吸收与累积[J].应用与环境生物学报,1996,2(03):207.
 Zheng Wenjiao,Wang Wenqing,Lin Peng.ABSORPTION AND ACCUMULATION OF HEAVY METALS IN AEGICERAS CORNICULATUM MANGROVE FOREST IN THE ESTUARY OF THE JIULONG RIVER IN FUJIAN[J].Chinese Journal of Applied & Environmental Biology,1996,2(01):207.
[4]孙平跃,王,斌.长江口区河蚬体内的重金属含量及其污染评价[J].应用与环境生物学报,2004,10(01):79.
 SUN Pingyue,et al..Metal content and contamination assessment in Corbicula fluminea from the Yangtze River estuary[J].Chinese Journal of Applied & Environmental Biology,2004,10(01):79.
[5]郜瑞莹,王建龙.酿酒酵母生物吸附Cu2+的动力学及吸附平衡研究[J].应用与环境生物学报,2007,13(06):848.
 GAO Ruiying,et al..Kinetics and Equilibrium of Cu2+ Biosorption by Dried Biomass of Saccharomyces cerevisia[J].Chinese Journal of Applied & Environmental Biology,2007,13(01):848.
[6]方临川 黄巧云 蔡鹏 梁巍.XAFS 技术在重金属界面吸附研究中的应用[J].应用与环境生物学报,2008,14(05):737.
[7]杜爱雪 曹理想 张仁铎**.高抗铜青霉菌的筛选及其对重金属的吸附*[J].应用与环境生物学报,2008,14(05):650.
[8]杨学芬,熊邦喜,杨明生.武汉南湖沉积物的重金属污染状况评价[J].应用与环境生物学报,2009,15(04):515.[doi:10.3724/SP.J.1145.2009.00515]
 YANG Xuefen,XIONG Bangxi,YANG Mingsheng.Assessment on Heavy Metal Pollution in Sediments of Lake Nanhu in Wuhan, China[J].Chinese Journal of Applied & Environmental Biology,2009,15(01):515.[doi:10.3724/SP.J.1145.2009.00515]
[9]李凝玉,卢焕萍,李志安,等.籽粒苋对土壤中镉的耐性及积累特征研究[J].应用与环境生物学报,2010,16(01):28.[doi:10.3724/SP.J.1145.2010.00028]
 LI Ningyu,LU Huanping,LI Zhian,et al.Cadmium tolerance and accumulation in Amaranthus hypochondriacus L.[J].Chinese Journal of Applied & Environmental Biology,2010,16(01):28.[doi:10.3724/SP.J.1145.2010.00028]
[10]康福星,龙健,王倩,等.水环境中微生物胞外聚合物(EPS)对重金属和富营养元素的环境生物化学效应及其研究展望[J].应用与环境生物学报,2010,16(01):129.[doi:10.3724/SP.J.1145.2010.00129]
 KANG Fuxing,LONG Jian,WANG Qian,et al.Its Researching Prospect and Environmental & Biochemical Effect of Microbial Extracellular Polymeric Substances to Heavy Metals and Eutrophic Elements[J].Chinese Journal of Applied & Environmental Biology,2010,16(01):129.[doi:10.3724/SP.J.1145.2010.00129]

备注/Memo

备注/Memo:
收稿日期: 2018-05-16 接受日期 Accepted: 2018-07-03
*四川省教育厅项目(15ZA0012)资助
**通讯作者(E-mail:zengjian@sicau.edu.cn)
点击摘要页题目后的“PDF”可下载阅读全文;本文为已录用的作者修定稿,尚未经编辑全面修改。
引用本文请注明出处本刊;发表刊期和页码将以正式出版时的安排为准,但DOI确定不变。

更新日期/Last Update: 2018-07-13