[1]黄瑞芳,王红玲,施士争*.灌木柳树无性系铅积累特性及其与生物量的关系研究[J].江苏林业科技,2020,47(05):32-36.[doi:10.3969/j.issn.1001-7380.2020.05.007]
　Huang Ruifang,Wang Hongling,Shi Shizheng *.Lead accumulation and its relationship with biomass of shrub willow clones[J].Journal of Jiangsu Forestry Science &Technology,2020,47(05):32-36.[doi:10.3969/j.issn.1001-7380.2020.05.007]
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灌木柳树无性系铅积累特性及其与生物量的关系研究()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第47卷
期数:
2020年05期
页码:
32-36
栏目:
试验研究
出版日期:
2020-10-31

文章信息/Info

Title:
Lead accumulation and its relationship with biomass of shrub willow clones
文章编号:
1001-7380（2020）05-0032-05
作者:
黄瑞芳1; 2; 王红玲1; 2; 施士争1; 2*
1.江苏省林业科学研究院，江苏南京211153；
2.江苏省农业种质资源保护与利用平台，江苏南京210014
Author(s):
Huang Ruifang1; 2;  Wang Hongling1; 2;  Shi Shizheng 1; 2*
1.Jiangsu Academy of forestry,Nanjing 211153,China；
2. The Jiangsu Provincial Infrastructure for Conservation and Utilization of Agricultural Germplasm,Nanjing 210014,China
关键词:
灌木柳树; 铅; 胁迫; 积累; 生物量
Keywords:
Shrub willow;  Lead;  Stress;  Accumulation;  Biomass
分类号:
Q946.91+9；Q948.116；S792.12
DOI:
10.3969/j.issn.1001-7380.2020.05.007
文献标志码:
A
摘要:
研究以20个高生物量灌木柳树无性系为试验材料，采用水培法进行铅胁迫处理（300 μM），进行生长表现观察、生物量及铅含量的测定，结果显示： 灌木柳树在受到铅胁迫时，其生长受到不同程度的抑制，其中根部的生长较地上部分被抑制的程度更严重，铅主要积累在根部，达到95.86%—98.21%；在铅胁迫下，灌木柳树生物量与铅含量呈显著负相关，根系生物量与铅总量呈极显著正相关。无性系2513耐性最好，体内铅含量最高，但根系生物量较低，后期可利用微生物、生根剂等手段促进其根系生长与对铅的吸收积累；无性系2542耐性较好，根系生物量较高，固定的铅总量最多，可应用于生物修复。
Abstract:
In this study, 20 willow clones with high biomass were treated with lead stress (300 μM) by hydroponics. Morphological observation, biomass and lead content were measured. The results were as follows: the growth of shrub willow was inhibited, and the root growth was more inhibited than the aboveground part. Lead was mainly accumulated in roots, and the distribution rate reached 95.86%—98.21%. Under lead stress, shrub willow biomass was negatively correlated with lead content, and root biomass was significantly positively correlated with total lead. Clone 2513 had the best tolerance and the highest lead content, but its root biomass was low. Microorganisms and rooting agents could be used to promote root growth and lead absorption and accumulation. Clone 2542 had better tolerance, higher root biomass and the largest amount of fixed lead, which could be used for bioremediation.

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备注/Memo

备注/Memo:
收稿日期：2020-08-09;修回日期：2020-08-29
基金项目：江苏省农业科技自主创新资金项目“灌木柳树修复铅污染土壤的专用品种选育”（CX(19）3044)；江苏省林业科技创新与推广项目“抗逆速生灌木柳新品种区域性试验与示范” （LYKJ[2019]43）
作者简介：黄瑞芳（1987- ），女，安徽合肥人，助理研究员，硕士。主要研究方向为植物修复技术。E-mail:aion126@126.com。
*通信作者:施士争（1968- ），男，江苏宿迁人，研究员，学士。主要从事林木遗传育种方面的研究。E-mail:shshzn@163.com。
更新日期/Last Update: 2020-12-09