Effect of UV-B radiation and Hg2+ combined treatment on physiological metabolism and growth of black wheat seedlings

Abstract

Abstract: The black wheat seedlings treated with 1.35 w穖^-2 dose of UV-Birradiation and 1.29 mmol稬^-1concentration of Hg²⁺ were studied under laboratory conditions.The results showed that the contents of chlorophyll (Chl) and carotenoids (Car) and rate of PSIIelectron transport decreased,activity of superoxide dismutase (SOD) also decreased but less obvious,while the reduction capacity of TTC in roots decreased.However electrolyte leakage (EL) and content of malondialdehyde (MDA) and H₂O₂ increased.The plant height and fresh weight decreased 12 days treatment after treater.The effect of combined treatment on the content of MDA and H₂O₂were larger than treatment with Hg²⁺only.

Key words: Arid-highland of loess plateau, Different mulching, Soil water, Soil tentpetatute. Soil nutrients

CLC Number:

Q945.11

DU Yingyun, SHI Yi, LIU Zhenwei. Effect of UV-B radiation and Hg²⁺ combined treatment on physiological metabolism and growth of black wheat seedlings[J]. cje, 2004, (5): 111-115.

References

[1] 王宝山.1988.生物自由基与植物膜伤害[J].植物生理学通讯,(2):12～16.
[2] 王勋陵.2002.增强紫外线B辐射对植物及生态系统影响研究的发展趋势[J].西北植物学报,22(3):670～681.
[3] 李柏林,梅慧生.1989.燕麦叶片衰老与活性氧代谢的关系[J].植物生理学报,15(1)6～12.
[4] 李锦树,王洪春,王文英.1983.干旱对玉米叶片细胞膜透性及膜脂的影响[J].植物生理学报,9(3):223～229.
[5] 李鹏,李祺福,黄胤怡,等.2001.抗UV-B辐射植物黄酮类化合物研究进展[J].生态学杂志,20(6):36～40.
[6] 李韶山,刘颂豪.1999.高等植物UV-B效应研究进展[J].激光生物学报,8(3):234～237.
[7] 杜英君,靳月华.2000.远紫外辐射对紫杉幼苗针叶膜脂过氧化及内源保护系统的影响[J].应用生态学报,11(5):660～664.
[8] 谷巍,施国新,张超英,等.2002.Hg2+、Cd2+和Cu2+对菹草光合系统及保护酶系统的毒害作用[J].植物生理与分子生物学学报,28(1):69～74.
[9] 陈国祥,施国新,何兵,等.1999.Hg、Cd对莼菜越冬芽光合膜光化学活性及多肽组分的影响[J].环境科学学报,19(5):521～525.
[10] 岳明,王勋陵.1999.紫外线辐射对小麦竞争性平衡的影响--小麦和燕麦生物量结构与冠层结构[J].环境科学学报,19(5):526～531.
[11] 祭美菊,冯虎元,安黎哲,等.2002.增强的UV-B辐射对植物影响的研究[J].应用生态学报,13(3):359～364.
[12] 强维亚,杨晖,汤红官,等.2003.重金属(Cd)和增强UV-B辐射复合对大豆生长和生理代谢的影响[J].西北植物学报,23(2):235～238.
[13] 蒋明义,郭韶川.1996.渗透胁迫下稻苗中铁催化的膜脂过氧化作用[J].植物生理学报,22(1):6～12.
[14] 靳月华,杜英君,刘桂珍.2001.远紫外辐射诱导紫杉产生的活性氧[J].植物学报,43(4):380～384.
[15] Arnon DI. 1949. Copper enzymes isolated chloroplasts, polyphenol oxydase in Bata vulgaris [J ]. Plant Physiol., 24:1～5.
[16] Beyer WF, Fridsovich I. 1987. Assaying for superoxide dismutase activity: Some large consequences of changes in conditions [ J ].Anal. Biochem., 161: 559～566.
[17] Brandle JR, Campbell WF, Caldwell MM. 1977. Net photosynthesis, electron transport capacity, and ultrastructure of Pisum sativum L. exposed to ultraviolet-B radiation[J]. Plant Physiol., 60:165～169.
[18] Bube SL, Bomman JF. 1992. Response of spruce seedlings to simultaneous exposure to UV-B radiation and cadmium[J]. Plant Physiol. Biochem., 80: 761 ～766.
[19] Larson EH, Bornman JF, Asp H. 1998. Influence of UV-B radiation and Cd2+ chlorophyll fluorescence, growth and nutrient content in Brassica napus [J ]. J . Exp . Bot., 49:1031～1039.
[20] Martin B, Martensson O, Oquist G. 1978. Seasonal effects on photosynthetic electron transport and fluorescence properties in isolated chloroplasts of Pinus sylvestris [J ]. Physiol. Plant, 44:102～109.
[21] Oquist G, Hellgren NO. 1976. The photosynthetic electron transport capacity of chloroplasts prepared from needles of unhardened and hardened seedlings of Pinus sylvestris [J]. Plant Sci. Lett ,7: 359～369.
[22] Rai LC, Tyagi B, Mallick N, et al. 1995. Interative effects of UV-B and copper on photosynthetic activity of the cyanobacterium Anabaena doliolum [ J ] . Environ. Exper. Bot., 35: 177 ～186.
[23] Rai LC, Tyagi B, Mallick N. 1996. Altarlation in photosynthetic characteristics of Anabaena doliolum following exposure to UVB and Pb[J]. Photochem. Photobiol., 64: 658～663.
[24] Rai LC, Tyagi B, Rai PK, et al. 1998. Inferactive effects of UVB and heavy metals (Gu and Pb) on nitrogen and phosphorus metabolism of a N2-fixing cyanobacterium Anadaena doliolum [J]. Environ. Exper. Bot., 39:221 ～231.
[25] Teramura AH, Sullivan JH. 1994. Effect of UV-B radiation on photosynthesis and growth of terrestrial plants[J]. Photosynth.Res., 39:463～473.
[26] Towill L, Weiser E. 1974. Studies on the reduction of 2, 3, 5,-triphenyltetrazolium chloride es viability assay for plant tissue cultures[J]. Can. J. Bot., 53:1097～1102.
[27] Vu CV, Allen JL, Garrard LA. 1982. Effects of supplemental UV-B radiation on primary photosynthetic carboxylating enzymes and soluble proteins in leaves of C3 and C4 crop plants[J ]. Physiol. Plant, 55: 11～16.

Effect of UV-B radiation and Hg²⁺ combined treatment on physiological metabolism and growth of black wheat seedlings

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