Sulmon Cécile, Gouesbet Gwenola, Binet Françoise, Martin-Laurent Fabrice, El Amrani Abdelhak, Couée Ivan
UMR 6553 ECOBIO, CNRS, Université de Rennes 1, Campus de Beaulieu, bâtiment 14A, F-35042 Rennes Cedex, France.
Environ Pollut. 2007 Jan;145(2):507-15. doi: 10.1016/j.envpol.2006.04.018. Epub 2006 Jun 12.
Growth in the presence of sucrose was shown to confer to Arabidopsis thaliana (thale cress or mustard weed) seedlings, under conditions of in vitro culture, a high level of tolerance to the herbicide atrazine and to other photosynthesis inhibitors. This tolerance was associated with root-to-shoot transfer and accumulation of atrazine in shoots, which resulted in significant decrease of herbicide levels in the growth medium. In soil microcosms, application of exogenous sucrose was found to confer tolerance and capacity to accumulate atrazine in Arabidopsis thaliana plants grown on atrazine-contaminated soil, and resulted in enhanced decontamination of the soil. Application of sucrose to plants grown on herbicide-polluted soil, which increases plant tolerance and xenobiotic absorption, thus appears to be potentially useful for phytoremediation.
研究表明，在体外培养条件下，拟南芥（鼠耳芥或荠菜）幼苗在蔗糖存在的情况下生长，对除草剂阿特拉津和其他光合作用抑制剂具有高度耐受性。这种耐受性与阿特拉津从根部向地上部的转运和积累有关，这导致生长培养基中除草剂水平显著降低。在土壤微观环境中，发现施加外源蔗糖可使生长在受阿特拉津污染土壤上的拟南芥植物具有耐受性和积累阿特拉津的能力，并导致土壤去污能力增强。因此，在受除草剂污染的土壤上种植的植物中施加蔗糖，可提高植物耐受性和异生素吸收，这似乎对植物修复具有潜在用途。
