
1.西南科技大学生命科学与工程学院 绵阳 621010
2.核废物与环境安全国防重点学科实验室 绵阳 621010
郭梦露,女,1986年11月出生,西南科技大学在读硕士研究生,专业研究方向为低放核素的植物修复研究,Email: yitianbian33@126.com
王丹,Email: wangdan@swust.edu.cn
扫 描 看 全 文
郭梦露, 王丹, 徐长合, 等. 植物激素对油菜植株富集133Cs和88Sr的影响[J]. 辐射研究与辐射工艺学报, 2011,29(5):314-320.
GUO Menglu, WANG Dan, XU Changhe, et al. The effect of phytohormones on the 133Cs and 88Sr accumulation in oilseed rape[J]. Journal of Radiation Research and Radiation Processing, 2011,29(5):314-320.
通过水培试验,研究外源植物激素(生长素IAA、赤霉素GA、水杨酸SA)对油菜吸收和累积,133,Cs、,88,Sr的影响。以西南地区普遍种植的甘蓝型油菜为试验材料,利用火焰原子吸收光谱法对油菜苗进行,88,Sr和,133,Cs含量的测定。结果表明:在三种植物激素处理下,油菜地上部和根部的生物量显著高于对照(未加激素),油菜中,133,Cs和,88,Sr富集量也增多。油菜对,133,Cs、,88,Sr吸收规律总体表现出根部含量,>,地上部含量,,133,Cs含量,>,88,Sr含量。三种激素处理下油菜植株对锶铯的总累积量规律为GA,>,SA,>,IAA,,133,Cs和,88,Sr在油菜体内的富集量随IAA浓度的增加而增大,但随GA、SA浓度的的增加表现出下降的趋势,相比之下,中等水平的GA(500mg/L)和SA(500 µmol/L)的施加能显著增加油菜在低水平锶铯(1 mmol/L)胁迫下的生物量、富集量和转移系数。可见,植物激素的添加可强化油菜对,133,Cs和,88,Sr污染的修复效果。
The effect of uptake and distribution of ,133,Cs and ,88,Sr in the common plant-India mustard (,Brassica napus L.,) by exogenous phytohormones (Gibberelin-A,3, GA,3, Salicylates, SA, 3-indole acetic acid, IAA) treatments were studied by using hydroponic experiment. The results shown as follows: the biomass of above-ground and that of roots of oilseed rape were obviously higher than that of contrary (non-hormone), and the accumulation of ,133,Cs and ,88,Sr increased as well, under the three phytohormones treatments. The distribution sequence of ,133,Cs and ,88,Sr in oilseed rape was roots,>,above-grounds, and the contents was ,133,Cs ,>,88,Sr. The accumulation ability of phytohormones was GA,>,SA,>,IAA, the accumulation of ,133,Cs or ,88,Sr increased with the phytohormone concentration. The treatment of mid-level of Gibberelin-A,3, (500 mg/L) and Salicylates acid (500 μmol/L) increased the biomass, enrichment and the translocation factors under the low concentration of ,133,Cs and ,88,Sr stress (1 mmol/L). Therefore, the phyto-extraction efficiency was enhanced in oilseed rape by using exogenous phytohormones.
植物激素油菜植株铯锶富集
PhytohormoneOilseed rape133Cs88SrAccumulation
0
浏览量
0
下载量
3
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621