全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

Cd胁迫对水稻亲本材料Cd吸收分配的影响

DOI: 10.11654/jaes.2014.12.002, PP. 2288-2295

Keywords: 水稻,Cd安全亲本材料,吸收,转运,亚细胞分布

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用土培试验,以前期筛选出的水稻Cd安全亲本材料D62B为试验材料,以普通材料Luhui17为对照,研究不同生育期水稻Cd安全亲本材料在1、4、16mg·kg-1Cd处理浓度下对Cd的吸收、分配及转运特征.结果表明:(1)在不同Cd处理浓度下,水稻Cd安全亲本材料D62B生长受到了一定程度的抑制,且随Cd处理浓度的提高生物量均显著降低.当Cd处理浓度为16mg·kg-1时,D62B在分蘖期、抽穗期和成熟期的生物量分别较1mg·kg-1Cd处理降低了52.05%、43.06%和32.34%.(2)D62B地上部Cd含量和转移系数在不同生育期均显著低于Luhui17,成熟期谷壳、糙米Cd含量也较低.当Cd处理浓度为1mg·kg-1和4mg·kg-1时,D62B的糙米Cd含量均低于食品安全国家标准0.2mg·kg-1,表现出Cd安全亲本材料的"安全性".(3)随Cd处理浓度的提高,D62B对Cd的吸收速率显著增加,且在分蘖期其吸收速率达到最大.在各处理下,D62B对Cd的吸收速率与Luhui17差异不显著.但D62B对Cd的转运速率在4mg·kg-1和16mg·kg-1Cd处理下则显著低于Luhui17,成熟期差异达到最大,分别为Luhui17的46.52%和66.68%.(4)D62B地上部Cd的亚细胞分布表现为细胞壁>可溶部分>细胞器,Luhui17为可溶部分>细胞壁>细胞器,地下部则均表现为可溶部分>细胞壁>细胞器.随Cd处理浓度的增加,Luhui17地下部细胞壁的分配比例显著降低,在16mg·kg-1Cd处理浓度下,Luhui17细胞壁的分配比例显著低于D62B.综上所述,最终表现出D62B具有籽粒Cd低积累的特点,可为培育Cd安全水稻品种提供优良的种质资源.

References

[1]  邬飞波, 张国平. 不同Cd水平下大麦幼苗生长和Cd及养分吸收的品种间差异[J]. 应用生态学报, 2002, 13(12):1595-1599. WU Fei-bo, ZHANG Guo-ping, Differences between barley cultivars in seedling growth and in uptake of cadmium and nutrients under various Cd levels[J]. Chinese Journal of Applied Ecology, 2002, 13(12):1595-1599.
[2]  Chaney R L, Reeves P G, Ryan J A, et al. An improved understanding of soil Cd risk to human sand low cost methods to phytoextract Cd from contaminated soils to prevent soil Cd risks[J]. Biometals, 2004, 17:549-553.
[3]  史 静, 李正文, 龚伟群, 等. 两种常规水稻Cd、Zn吸收与器官分配的生育期变化:品种、土壤和Cd处理的影响[J]. 生态毒理学报, 2007, 2(1):32-40. SHI Jing, LI Zheng-wen, GONG Wei-qun, et al. Uptake and partitioning of Cd and Zn by two non-hybrid rice cultivars in different growth stages:Effect of cultivars, soil type and Cd spike[J]. Asian Journal of Ecotoxicology, 2007, 2(1):32-40.
[4]  Uraguchi S P, Mori S S, Kuramata M, et al. Root-to-shoot Cd translocation via the xylem is the major process determining shoot and grain cadmium accumulation in rice[J]. Journal of Experimental Botany, 2009, 60(9):2677-2688.
[5]  李 鹏, 葛 滢, 吴龙华, 等. 两种籽粒Cd含量不同水稻的Cd吸收转运及其生理效应差异初探[J]. 中国水稻科学, 2011, 25(3):291-296. LI Peng, GE Ying, WU Long-hua, et al. Uptake and translocation of cadmium and its physiological effects in two rice cultivars differed in grain cadmium concentration[J]. Chinese Journal of Rice Science, 2011, 25(3):291-296.
[6]  郑 陶, 李廷轩, 张锡洲, 等. 水稻Cd高积累品种对Cd的富集特性[J]. 中国农业科学, 2013, 46(7):1492-1500. ZHENG Tao, LI Ting-xuan, ZHANG Xi-zhou, et al. Accumulation characteristics of cadmium-accumulated rice cultivars with high cadmium accumulation[J]. Scientia Agricultura Sinica, 2013, 46(7):1492-1500.
[7]  Zhang H J, Zhang X Z, Li T X, et al. Variation of cadmium uptake, translocation among rice materials and detecting for potential cadmium-safe cultivars[J]. Environmental Earth Sciences, 2014, 71:277-286.
[8]  Liu J G, Qian M, Cai G L, et al. Uptake and translocation of Cd in different rice cultivars and the relation with Cd accumulation in rice grain[J]. Journal of Hazardous Materials, 2007, 143:443-447.
[9]  Fu X P, Dou C M, Chen Y G, et al. Subcellular distribution and chemical forms of cadmium in Phytolacca americana L.[J]. Journal of Hazardous Materials, 2011, 186:103-107.
[10]  Xu Q S, Min H L, Cai S J, et al. Subcellular distribution and toxicity of cadmium in Potamogeton crispus L.[J]. Chemosphere, 2012, 89:114-120.
[11]  周守标, 徐礼生, 吴龙华, 等. Cd和锌在皖景天细胞内的分布及化学形态[J]. 应用生态学报, 2008, 19(11):2515-2520. ZHOU Shou-biao, XU Li-sheng, WU Long-hua, et al. Subcellular distribution and chemical forms of Cd and Zn in Sedum jinianum[J]. Chinese Journal of Applied Ecology, 2008, 19(11):2515-2520.
[12]  万 敏, 周 卫, 林 葆. Cd积累不同类型的小麦细胞Cd的亚细胞和分子分布[J]. 中国农业科学, 2003, 36(6):671-675. WAN Min, ZHOU Wei, LIN Bao. Subcelluar and molecular distribution of cadmium in two wheat genotypes differing in shoot/root Cd partitioning[J]. Scientia Agricultura Sinica, 2003, 36(6):671-675.
[13]  Wu F B, Dong J, Qian Q Q, et al. Subcellular distribution and chemical form of Cd and Cd-Zn interaction in different barley genotypes[J]. Chemosphere, 2005, 60:1437-1446.
[14]  He J Y, Zhu C, Ren Y F, et al. Uptake, subcellular distribution, and chemical forms of cadmium in wild-type and mutant rice[J]. Pedosphere, 2008, 18(3):371-377.
[15]  Naraho N, Gaur P. Effects of cations, including heavy metals, on cadmium uptake by Lemna polyrhiza L.[J]. Biometals, 1995, 8:95-98.
[16]  Wang X, Liu Y G, Zeng G M, et al. Subcellular distribution and chemical forms of cadmium in Bechmeria nivea(L.) Gaud[J]. Environmental and Experimental Botany, 2008, 62:389-395.
[17]  秦 丽, 祖艳群, 李 元. Cd对超积累植物断续菊生长生理的影响[J]. 农业环境科学学报, 2010, 29(增刊):048-052. QIN Li, ZU Yan-qun, LI Yuan. Effects of Cd on the physiological characteristics and growth of the Sonchus asper L. Hill[J]. Journal of Agro-Environment Science, 2010, 29(Suppl):48-52.
[18]  朱志勇, 李友军, 郝玉芬, 等. Cd对小麦(Triticum aestivum)干物质积累、转移及籽粒产量的影响[J]. 农业环境科学学报, 2012, 31(2):252-258. ZHU Zhi-yong, LI You-jun, HAO Yu-fen, et al. Effects of Cd on accumulations and translocation of biomasses and yield of different wheat(Triticum aestirum) cultivars[J]. Journal of Agro-Environment Science, 2012, 31(2):252-258.
[19]  Obata H, Umebayashi M. Effect of cadmium on mineral nutrient concentration in plant differing in tolerance for cadmium[J]. Journal of Plant Nutrition, 1997, 20:97-105.
[20]  Liu X L, Zhang S Z. Intraspecific differences in effects of contamination of cadmium and arsenate on early seedlings growth and metal uptake by wheat[J]. Journal of Environmental Sciences, 2007, 19:1221-1227.
[21]  Brune A, Urbach W, Dietz K J. Compartmentation and transport of zinc in barley primary leaves as basic mechanism involved in zinc tolerance[J]. Plant, Cell and Environment, 2008, 17:153-162.
[22]  Uraguchi S P, Fujiwara T. Cadmium transport and tolerance in rice:Perspectives for reducing grain cadmium accumulation[J]. Rice, 2012, 5(5):1-8.
[23]  李坤权, 刘建国, 陆小龙, 等. 水稻不同品种对Cd吸收及分配的差异[J]. 农业环境科学学报, 2003, 22(5):529-532. LI Kun-quan, LIU Jian-guo, LU Xiao-long, et al. Uptake and distribution of cadmium in different rice cultivars[J]. Journal of Agro-Environment Science, 2003, 22(5):529-532.
[24]  肖美秀, 林文雄, 陈祥旭, 等. Cd在水稻体内的分配规律与水稻Cd耐性的关系[J]. 中国农学通报, 2006, 22(2):379-381. XIAO Mei-xiu, LIN Wen-xiong, CHEN Xiang-xu, et al. The relation between the law of Cd distribution in rice and the Cd-tolerance[J]. Chinese Agricultural Science Bulletin, 2006, 22(2):379-381.
[25]  Kukier U, Chaney R L. Growing rice grain with controlled cadmium concentrations[J]. Journal of Plant Nutrition, 2002, 25(8):1793-1820.
[26]  Ramos I, Esteban E, Lucena J J, et al. Cadmium uptake and subcellular distribution in plants of Lactuca sp. Cd-Mn interaction[J]. Plant Science, 2002, 162:761-767.
[27]  于 辉, 杨中艺, 杨知建, 等. 不同类型Cd积累水稻细胞Cd化学形态及亚细胞和分子分布[J]. 应用生态学报, 2008, 19(10):2221-2226. YU Hui, YANG Zhong-yi, YANG Zhi-jian, et al. Chemical forms and subcellular and molecular distribution of Cd in two Cd-accumulation rice genotypes[J]. Chinese Journal of Applied Ecology, 2008, 19(10):2221-2226.
[28]  Ni T H, Zhang W Y. Subcellular distribution of cadmium in mining ecotype Sedum alfredii[J]. Acta Botanica Sinica, 2003, 45(8):925-928.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133