|Table of Contents|

Effects of Polychlorinated Biphenyls (PCBs) on the Initial Roots and Microstructure of Salix matsudana f.pendula Schneid(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年24
Page:
55-60
Research Field:
Publishing date:

Info

Title:
Effects of Polychlorinated Biphenyls (PCBs) on the Initial Roots and Microstructure of Salix matsudana f.pendula Schneid
Author(s):
LI Ye1; 2; ZHANG Shuang1; 2; LI Yuling1; 2; DU Kejiu1; 2
(1.College of Forestry,Agricultural University of Hebei,Baoding，Hebei 071001;2.Key Laboratory of Tree Species Germplasm Resourse and Forest Protection of Hebei Province，Baoding,Hebei 071000)
Keywords:
polychlorinated biphenyls; Salix matsudana; growing development; microstructure
PACS:
-
DOI:
10.11937/bfyy.201624015
Abstract:
Salix matsudana was used as test material，plantlets of Salix matsudana was cultured separately(MS) or collaboratively (MS+0.1 mg?L-1 6-BA+0.2 mg?L-1 NAA) in medium of containing various concentrations of PCBs，to study the effects of PCBs on external morphology，adventitious root formation and microstructures.The results showed that high levels of PCBs could make the plant albino，exposure separately was more serious than collaboratively，the color of leaves returned green when cultured collaboratively；exposure collaboratively had no significant influence on the time of initial roots and number of Salix matsudana at the concentration of 0.2 mg?L-1 below-ground biomass increased obviously compared with positive control，while 20.0 mg?L-1 showed a marked reduction；explosure separately period reaching 100% of adventitious roots differentiation rate of Salix matsudana at the concentration of 2.0 mg?L-1 was 1.2 days earlier than negative control，20.0 mg?L-1 was the lowest，which accounts for 5.4% of negative control，explosure separately had no effect on other indicator of roots.Adding hormone to medium could be greatly reduced the toxicity of PCBs，for exposure collaboratively the root number were 158.6%，161.8%，263.9% and 161.8% more explosure separately at the same concentration，the ratio of adventitious roots biomass were 1∶2.9，1∶10.4，1∶12.1.Exposure collaboratively，the cell inclusion of root decreases with PCBs concentration increasing，compared with the positive control，the transects of stem showed secondary structure was restrained when treated with PCBs，the roots and the leaves structure showed no significant change when the stem had same change with exposure collaboratively；the root cells of tow groups were damaged in different degree.

References:

 

[1]SAFE S H.Polychlorinated biphenyls (PCBs)：environmental impact，biochemical and toxic responses，and implications for risk assessment[J].CriticalReviews in Toxicology，1994，24(2)：87-149.

[2]BROWN J F，BEDARD D L，BRENNAN M J，et al.Polychlorinatedbiphenyl dechlorination in aquatic sediments[J].Science，1987，236(4802)：709-712.

[3]SAFE S.Polychlorinated biphenyls (PCBs)：Mutagenicity and carcinogenicity[J].Mutat Ｒes，1989，220(1)：31-47.

[4]XU Y，YU Ｒ，ZHANG X，et al.Effects of PCBs and MeSO2-PCBs on adrenocortical steroidogenesis in H295Ｒ human adrenocortical carcinoma cells [J].Chemosphere，2006，63(5)：772-784.

[5]UNEP．The stockholm convention on persistent organic pollutants (POPs)[Z].Sweden:Stockholm，2001.

[6]MEEKER J D，HAUSER R.Exposure to polychlorinated biphenyls (PCBs) and male reproduction[J].Syst Biol Reprod Med，2010，56(2)：122-131.

[7]DRINKER C K，WARREN M F，BENNETT G A.The problem of possible systemic effects from certain chlorinated hydrocarbons[J].J Ind Hyg Toxicol，1937，19(7)：283-311.

[8]STAREK A.Polychlorinated biphenyls-toxicology and health risk[J].Rocz Panstw Zakl Hig，2001，52(3)：187-201.

[9]CARPENTER D O.Polychlorinated biphenyls (PCBs)：routes of exposureand effects on human health[J].Rev Environ Health，2006，21(1)：1-23.

[10]帅建军,熊飞,彭日荷,等.多氯联苯的生物修复[J].遗传,2011(3):219-227.

[11]CAO B，NAGARAJAN K，LOH K C.Biodegradation of aromatic compounds：current status and opportunities for biomolecular approaches[J].Appl Microbiol Biotechnol，2009，85(2)：207-228.

[12]SUSARLA S，MEDINA V F，MCCUTCHEON S C.Phytoremediation：An ecological solution to organic chemical contamination[J].Ecol Eng，2002，18(5)：647-658.

[13]唐红卫,吴师剑,钱瑾.关于多氯联苯测定的探讨[J].上海环境科学，2010,29(3):132-136.

[14]van AKEN B，CORREA P A，SCHNOOR J L.Phytoremediation of polychlorinated biphenyls：new trends and promises[J].Environ Sci Technol，2010，44(8)：2767-2776.

[15]BAKER.The effects of oils on plant physiology[M]//The ecological effects of oil pollution on littoral communities.Essex，England Applied Science Publishers，1973.

[16]CHEKOL T，VOUGH L R，CHANEY R L.Phytoremediation of polychlorinated biphenyl contaminated soils：The rhizosphere effect[J].Environment International，2004，30:799-804.

[17]王冬.多氯联苯（PCBs）的环境生态毒性研究[D].杭州：浙江大学,2006.

[18]刘亚云,孙红斌,陈桂珠，等.红树植物秋茄对PCBs污染沉积物的修复[J].生态学报,2009，2911:6002-6009.

Memo

Memo:
-
Last Update: 2017-02-08