黄河;熊治廷;

• 1:长江大学化学与环境工程学院
• 2:武汉大学资源与环境科学学院

摘要(Abstract)：

采用人工气候箱培养的方法,研究了镉(Cd)、乙草胺(AC)和苄嘧磺隆(BSM)对水稻种子萌发的影响。结果表明,Cd、AC、BSM单一和复合污染均可降低水稻种子的发芽率、发芽指数和活力指数。BSM对萌发率的影响大于AC,而AC对发芽指数的影响大于BSM;污染物对种子萌发时间的影响不明显,而对芽长和根长的影响显著。Cd、AC和BSM均可降低种子淀粉酶的活性,其中AC对α+β淀粉酶活性的影响大于BSM。随着Cd、AC和BSM处理浓度的升高,水稻种子贮藏物质的消耗率逐渐升高,转运率逐渐降低。

关键词(KeyWords)： 镉;除草剂;种子萌发;淀粉酶活性

Abstract:

Keywords:

基金项目(Foundation): 国家教育部骨干教师基金项目;; 长江大学科研发展基金

作者(Author): 黄河;熊治廷;

Email:

DOI:

参考文献(References)：

• [1]CHENY X,HE Y F,LUO Y M,et al.Physiological mechanism of plantroots exposed to cadmium[J].Chemosphere,2003,50(6):789-793.
• [2]赵玉锦,王台.水稻种子萌发过程中α-淀粉酶与萌发速率关系的分析[J].植物学通报,2001,18(2):226-230.
• [3]HOMMAY,HIRATAH.Kinetics of cadmiumand zinc absorption by riceseedling roots[J].Soil Sci Plant Nutr,1984,30:527-532.
• [4]ROS R,MORALES A,SEGURA J,et al.In Vivo and in Vitro effects ofnickel and cadmiumon the plasmalemma ATPase fromrice(Oryza sativaL.)shoots and roots[J].Plant Sci,1992,83:1-6.
• [5]MOYA J L,ROS R,PICAZO I.Influence of cadmium and nickel ongrowth,net photosynthesis and carbohydrate distribution in rice plants[J].Photosynthesis Research,1993,36:75-80.
• [6]OMOKAWAH,WUJ R,HATZIOS KK.Mechanismof safening action ofdymuron and its twomonomethyl analogues againstbensulfuron-methyl in-jury to rice(Oryza sativaL.)[J].Pestic BiochemPhysiol,1996,55:54-63.
• [7]NEMETH-KONDAL,F LEKY G,MOROVJAN G,et al.Sorption behav-iour of acetochlor,atrazine,carbendazim,diazinon,imidacloprid and isopro-turon on hungarian agricultural soil[J].Chemosphere,2002,48:545?552.
• [8]HUANGH,XIONGZT,LI MJ,etal.Effectofcadmiumand herbicidesonthe growth,chlorophylland soluble sugar content in rice seedlings[J].Wu-han University Journal of Natural Sciences,2006,11(3):742-748.
• [9]ZHENGH,YE C.Adsorption and mobility of acetochlor and butachlor onsoil[J].Bull Environ ContamToxico,2002,68:509-516.
• [10]王律先.我国农药工业概况及发展趋势[J].农药,1999,38(10):1-8.
• [11]叶常明,雷志芳,殷兴军,等.含莠去津和乙草胺河水灌溉对苗期水稻危害的研究[J].环境科学进展,1997,5(5):51-57.
• [12]曾庆玲,黄晓华,周青.酸雨对水稻、小麦和油菜种子萌发的影响[J].环境科学,2005,26(1):181-184.
• [13]UNIYALR C,NAUTIYALAR.Seed germination and seedling extensiongrowth in Ougeinia dalbergioides benth.under water and salinity stress[J].NewForests,1998,16:265-272.
• [14]李合生,孙群,赵世杰,等.植物生理生化实验技术与原理[M].北京:高等教育出版社,2000.
• [15]张金彪,黄维南.镉对植物的生理生态效应的研究进展[J].生态学报,2000,20(3):514-523.
• [16]李丽君,郑普山,谢苏婧.镉对玉米种子萌发和生长的影响[J].山西大学学报:自然科学版,2001,24(1):93-94.
• [17]周青,黄晓华,张一.镉对种子萌发的影响[J].农业环境保护,2000,19(3):156-158.
• [18]白嵩,李青芝,白岩,等.水体镉污染对水稻种苗初期生长的影响[J].吉林农业大学学报,2003,25(2):128-130.
• [19]XIONG Z T.Lead uptake and effects on seed germination and plantgrowth in a Pb hyperaecumulatorBrassica PekinensisRupr[J].Bull En-viron Contain Toxicol,1998,60:285-291.
• [20]POSCHENRIEDER C H,GUNS B,BARCEL J.Influence of cadmiumon water relations,stomatal resistance and abscisic acid contentin expan-ding bean leaves[J].Plant Physio,1989,90:1365-1371.