A pot experiment was conducted to study the absorption, accumulation, distribution and transfer of cadmium (Cd) during various growth stages of indica (CG132R) and japonica rice(Jing 925) under Cd stress. Results showed that the transfer ability of Cd from root to aboveground parts during the tillering stage was stronger than that during the maturity stage. With the increasing concentration of exogenous Cd, the Cd content in different organs of CG132R and Jing 925 increased. Under low soil Cd content, rice plant organs enriched Cd more easily. The proportion of Cd distribution in CG132R and Jing 925 was as follows: root > stem > leaf > brown rice > rice husk. The root was the primary organs of the rice in Cd absorption and accumulation. The Cd content and accumulation in brown rice was 500% as higher in CG132R than that in Jing 925. Further investigation showed that there was a significant difference between CG132R and Jing 925 in Cd absorption,accumulation,transfer and distribution. CG132R had stronger capabilities of absorption, accumulation and transfer of Cd than Jing 925. Higher concentration of Cd in brown rice of CG132R contributed to more stronger capability in absorption and transfer of Cd than that of Jing 925.
LONG Xiaolin， XIANG Xunchao*， XU Yanfang， SU Wenli， KANG Cuifang
. Absorption, Transfer and Distribution of Cd in indica and japonica Rice under Cd Stress[J]. Chinese Journal OF Rice Science, 2014
, 28(2)
: 177
-184
.
DOI: 10.3969/j.issn.1001-7216.2014.02.009
\[1\]Das P, Sam A S, Rout G R. Studies on cadmium toxicity in plants: A review. Environ Poll, 1997, 89: 2936.
\[2\]Grant C A, Buckley W T, Bailey L D, Selles F. Cadmium accumulation in crops. Can J Plant Sci, 1998, 78: 117.
\[3\]Shao G, Chen M, Wang D, et al. Using iron fertilizer to control Cd accumulation in rice plants: A new promising technology. Sci China Series C: Life Sci, 2008, 51(3): 245253.
\[4\]吴启堂， 陈卢， 王广寿. 水稻不同品种对Cd吸收积累的差异和机理研究. 生态学报， 1999， 19(1)： 104107.
\[5\]仲维功， 杨杰， 陈志德， 等. 水稻品种及其器官对土壤重金属元素Pb、Cd、Hg、As积累的差异. 江苏农业学报， 2006， 22(4)：331338.
\[6\]曾翔， 张玉烛， 王凯荣， 等. 不同品种水稻糙米含镉量差异. 生态与农村环境学报， 2006， 22(1)：6769，83.
\[7\]Hart J J, Welch R M,Norvell W A. Characterization of cadmium binding, uptake, and translocation in intact seedlings of bread and durum wheat cultivars. Plant Physiol, 1998, 116: 14131420.
\[8\]顾继光， 周启星. 镉污染土壤的治理及植物修复. 生态科学，2002， 21(4)： 352356.
\[9\]肖美秀， 林文雄， 陈祥旭， 等. 镉在水稻体内的分配规律与水稻镉耐性的关系. 中国农学通报，2006，22(2)：379381.
\[10\]赵秀兰， 刘晓. 不同品种烟草生长和镉及营养元素吸收对镉胁迫响应的差异. 水土保持学报， 2009， 23(1)： 117121，131.
\[11\]Kurz H, Schulz R, Romheld V. Phytoremediation of thallium and cadmium from contaminated soils: possibilities and limitations. Tokyo: Council for Promotion of Ueilization of Organic Materials, 1997: 120132.
\[12\]Li Y M, Chaney R L, Schneiter A A, et al. Genotypic variation in kernel cadmium concentration in sunflower germplasm under varying soil conditions. Crop Sci, 1995, 35: 137141.
\[13\]Dunbar K R, Mclaughlin M J. The uptake and partitioning of cadmium in two cultivars of potato (Solanum Tuberosum L.). J Exp Bot, 2003, 54: 349354.
\[14\]邵国胜， Muhammad J H， 章秀福， 等. 镉胁迫对不同水稻基因型植株生长和抗氧化酶系统的影响. 中国水稻科学， 2004， 18(3)：239244.
\[15\]王凯荣， 龚惠群. 不同生育期镉胁迫对两种水稻的生长、镉吸收及糙米镉含量的影响. 生态环境， 2006， 15(6)： 11971203.
\[16\]刘昭兵， 纪雄辉， 彭华， 等. 不同生育期水稻对Cd、Pb的吸收积累特征及品种差异. 土壤通报， 2011， 42(5)： 11251130.
\[17\]范中亮，季辉，杨菲，等. 不同土壤类型下杂交籼稻地上部器官对重金属镉和铅的富集特征. 中国水稻科学， 2010， 24(2)：183188.
\[18\]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 Haz Mat, 2007, 143: 443447.
\[19\]李坤全， 刘建国， 陆小龙， 等. 水稻不同品种对镉吸收及分配的差异. 农业环境科学学报， 2003， 22(5)：529532.
\[20\]徐燕玲， 陈能场， 徐胜光， 等. 低镉累积水稻品种的筛选方法研究——品种与类型. 农业环境科学学报， 2009， 28(7)：13461352.
\[21\]李鹏， 葛滢， 吴龙华， 等. 两种籽粒镉含量不同水稻的镉吸收转运及其生理效应差异初探. 中国水稻科学， 2011， 25(3)： 291296.
