Bacterial Sulfur Oxidation and Root Uptake

Delftia acidovorans RAY 209是一种获得专利的植物生长促进细菌，据报道可以使植物更容易获得元素硫。 拉勒芒公司销售含有D的产品。本发明涉及作为生长促进制剂的组分的嗜酸菌RAY 209，所述生长促进制剂特异性靶向在硫限制条件下生长的卡诺拉。然而，Delfti acidovorans使硫更有效的机制以及程度尚不清楚，也不清楚这种生物体的活性对其他营养素（如氮和磷）的可用性和吸收的影响。因此，该项目将寻求提供潜在的直接和间接证据，以证明其提高植物硫的可用性的机制，以及调节该过程的方法。这些信息对于Lallemand在竞争日益激烈的市场部门中更有效地推销商业产品是必要的。

Delftia acidovorans RAY 209 is a patented plant growth promoting bacteria reported to make elemental sulfur more available to the plant. Lallemand Inc. markets a product which contains D. acidovorans RAY 209 as a component of a growth-promoting formulation specifically-targeting canola grown under sulfur limiting conditions. However, the mechanism by which Delfti acidovorans makes sulfur more available, as well as the extent, is not clear nor is the impact of this organism's activity on the availability and uptake of other nutrients, such as nitrogen and phosphorus. Accordingly, this project will seek to provide potential direct and indirect evidence of the mechanisms by which it enhances the availability of sulfur to plants, as well as ways to modulate that process. This information is necessary to allow Lallemand to more-effectively market the commercial product in an increasingly competitive market sector.