[1]黄瑞芳,王红玲,施士争.7个灌木柳无性系铅富集能力比较[J].江苏林业科技,2020,47(01):11-16.[doi:10.3969/j.issn.1001-7380.2020.01.003]
 Huang Ruifang,Wang Hongling,Shi Shizheng.Accumulation ability comparison of 7 hydroponically cultivated shrub Salix species to heavy metal Pb[J].Journal of Jiangsu Forestry Science &Technology,2020,47(01):11-16.[doi:10.3969/j.issn.1001-7380.2020.01.003]
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7个灌木柳无性系铅富集能力比较()
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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01期
页码:
11-16
栏目:
试验研究
出版日期:
2020-03-22

文章信息/Info

Title:
Accumulation ability comparison of 7 hydroponically cultivated shrub Salix species to heavy metal Pb
文章编号:
1001-7380(2020)01-0011-06
作者:
黄瑞芳12王红玲12施士争12
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 Ruifang12Wang Hongling12Shi Shizheng12
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:
灌木柳树无性系富集能力重金属污染生物修复
Keywords:
Shrub willowClonePbAccumulation abilityHeavy metal pollutionBioremediation
分类号:
S792.12;X173;X53
DOI:
10.3969/j.issn.1001-7380.2020.01.003
文献标志码:
A
摘要:
以7个灌木柳无性系为试验材料,采用水培法进行铅胁迫处理( Pb2+处理质量浓度分别为0,20,40和80 mg/L )后,分别测定并计算其生物量、耐性指数、毒性阈值、铅含量和转运系数,比较并分析无性系间对铅富集能力的差异。结果显示:各无性系之间及各处理之间,其生物量差异极显著;随着水培处理中铅质量浓度的升高,各无性系的耐性指数总体上表现为逐步降低的趋势,而无性系植株体内的铅含量总体上则表现为逐步升高的趋势;不同无性系铅富集能力差异明显,铅总量最高的无性系为P681 [(7 432.79±980.72) μg],最低的无性系为P646 [(2 990.64±335.59) μg];毒性阈值最高的无性系为P683(215.780 mg/L),最低的无性系为P646(22.911 mg/L)。认为无性系P61适合低质量浓度铅污染修复,无性系P63和P1024较适合高质量浓度铅污染修复,而无性系P646并不适合用来进行铅污染修复。
Abstract:
Pb tolerance and accumulation ability of 7 shrub willow clones was researched by hydroponic culture. Exposed in 0, 20, 40, 80 mg /L Pb2+ concentrations for 4 weeks, their biomass, tolerance indices(TI), critical toxicity thresholds (EC50), Pb content and translocation factor (TF) were determined. We found that in general, their tolerance and accumulation ability varied depending on Pb2+ concentration. With the increase of Pb2+ treatment concentration, their TI decreased but Pb content increased. There were significant differences in biomass among different clones and treatments. The highest total Pb content occurred in Clone P681 [(7 432.79 +980.72) μg], and the lowest in Clone P646 [(2 990.64 +335.59) μg]. The highest EC50 was in Clone P683 (215.780 mg/L) and the lowest was in Clone P646 (22.911 mg/L).We concluded that Clone P61 was suitable for the bioremediation of low Pb2+ concentration pollution while Clone P63 and P1024 more suitable for high Pb2+ concentration pollution remediation, but Clone P646 was not suitable for bioremediation.

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备注/Memo

备注/Memo:
收稿日期:2019-12-02;修回日期:2019-12-27
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];国家科技支撑项目“黄淮海平原农区净水型农田林网防护系统构建技术研究与示范”(2015BAD07B0504);中央财政林业科技推广项目“苏北杨树更新树种良种繁育及高效培育技术推广”(苏[2017]TG03号)
作者简介:黄瑞芳(1987- ),女,安徽合肥人,助理研究员,硕士。主要研究方向植物修复技术。电子信箱:aion126@126.com。
更新日期/Last Update: 2020-04-15