Effects of Cadmium Stress on Biomass and Photosynthetic Characteristics of Stachys floridana

doi:10.7668/hbnxb.2010.04.034

Abstract

Abstract: With pot cultivation，the effects of cadmium stress on the leaf photosynthetic characteristics of Stachys floridana were studied. The results showed that with the increasing of cadmium concentration，the biomass of Stachys floridana decreased significantly . Cadmium reduced the photosynthetic rate(Pn) ，transpiration rate(Tr) and stomatal conductance(Gs) to 25.00%， 35.52%， 54.02% respectively at a concentration of 250 mg /L. The water use efficiency (WUE) was firstly increased，and then decreased. The intercellular CO₂ concentration (Ci) was gradually escalate with the higher cadmium concentration(greater than or equal to 200 mg /L) ，but the increasing of intercellular CO₂ concentration (Ci) was relatively less and the increase amplitude was 2.40%－9.15% .

Key words: Stachys floridana Schuttl.ex Benth., Cadmium stress, Photosynthetic characteristics

CLC Number:

LIU Hui-chao, LIU Meng-gang, YAO Lian-fang, JIA Wen-qing. Effects of Cadmium Stress on Biomass and Photosynthetic Characteristics of Stachys floridana[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(4): 162-165. doi: 10.7668/hbnxb.2010.04.034.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.2010.04.034

http://www.hbnxb.net/EN/Y2010/V25/I4/162

References

[1] 程智慧,孟焕文,周文安,等.地灵高产栽培[J].西北园艺,2003(1):30-32.

[2] 中国农业科学院蔬菜花卉研究所.中国蔬菜品种志·下卷[M].北京:中国农业科技出版社,2001:1128.

[3] 成玉梅,张菊平,李电涛.偃师银条高产栽培技术[J].河南农业科学,2003,8:72

[4] Yamahara J,Kitani T,Kobayashi H,et al.Studies on Stachys sieboldii Miq.II.Anti-anoxia action and the active constituents[J].Journal of the Pharmaceutical Society of Japan,1990,110(12):932-935.

[5] 季宇彬.中药材有效成分药理应用[M].哈尔滨:黑龙江科技出版社,1994:441-442.

[6] 周建利,陈同斌.我国城郊菜地土壤和蔬菜重金属污染研究现状与展望[J].湖北农学院学报,2002,22(5):476-480.

[7] 宋波.北京市菜地土壤和蔬菜镉含量及其健康风险分析[J].环境科学学报,2006,26(8):1343-1353.

[8] Das P,Samantaray S,Rout G R.Studies on cadmium toxicity in plants:a review[J].Environmental Pollution,1997,98(1):29-36.

[9] 刘俊,廖柏寒,周航,等.镉胁迫对大豆花荚期生理生态的影响[J].生态环境学报,2009,18(1):176-182.

[10] 熊愈辉,杨肖娥.镉对植物毒害与植物耐镉机理研究进展[J].安徽农业科学,2006,34(13):2969-2971.

[11] Atal N,Saradhi P P,Mohanty P.Inhibition of the chloroplast photochemical reactions by treatment of wheat seedlings with low concentrations of cadmium:Analysis of electron transport activities and changes in fluorescence yield[J].Plant and Cell Physiology,1991,32(7):943-951.

[12] Okamoto O K,Asano C S,Aidar E,et al.Effects of cadmium on growth and superoxide dismutase activity of the marine microalga Tetraselmis gracilis (Prasinophyceae)[J].Journal of Phycology,1996,32(1):74-79.

[13] Mendelssohn,McKee K L,Kong T.A comparison of physiological indicators of sublethal cadmium stress in wetland plants[J].Environmental and Experimental Botany,2001,46(3):263-275.

[14] 张金彪,黄维南.镉胁迫对草莓光合的影响[J].应用生态学报,2007,18(7):1673-1676.

[15] 陶龙兴,沈波,符冠富,等.水稻开花期高温胁迫的研究概述[J].浙江农业科学,2009,1:4-7.

[16] 朱建玲,徐志防,曹洪麟,等.镉对南美蟛蜞菊光合特性的影响[J].生态环境,2008,17(2):657-660.

[17] 林冬,朱诚,孙宗修.镉敏感水稻突变体在镉胁迫下活性氧代谢的变化[J].环境科学,2006,27(3):561-566.

[18] Siedlecka A,Krupa Z.Interaction between cadmium and iron and its effects on photosynthetic capacity of primary leaves of Phaseolus vulgaris[J].Plant Physiology and Biochemistry,1996,34(6):833-841.

[19] 张磊,于燕玲,张磊.外源镉胁迫对玉米幼苗光合特性的影响[J].华北农学报,2008,23(1):101-104.

[20] 苏玲,章永松,林咸永,等.维管植物的镉毒和耐性机制[J].植物营养与肥料学报,2000,6(1):106-112.

[21] 慈敦伟,姜东,戴廷波,等.镉毒害对小麦幼苗光合及叶绿素荧光特性的影响[J].麦类作物学报,2005,25(5):88-91.

[22] 马新明,李春明,田志强,等.镉污染对烤烟光合特性、产量及其品质的影响[J].生态学报,2006,26(12):4039-4044.

Please choose a citation manager

Content to export