The effect of phytohormones on the 133Cs and 88Sr accumulation in oilseed rape
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The effect of phytohormones on the 133Cs and 88Sr accumulation in oilseed rape
Journal of Radiation Research and Radiation ProcessingVol. 29, Issue 5, Pages: 314-320(2011)
作者机构:
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
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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 29(5):314-320(2011)
DOI:
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 29(5):314-320(2011)DOI:
The effect of phytohormones on the 133Cs and 88Sr accumulation in oilseed rape
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.