Dissipation of petroleum contaminants in the rhizosphere is likely the result of enhanced microbial degradation. Plant roots may encourage rhizosphere microbial activity through exudation of nutrients and by providing channels for increased water flow and gas diffusion. Phytoremediation of crude oil in soil was examined in this study using carefully selected plant species monitored over specifi...

CASE REPORTS The clinical characteristics of three patients with circumscribed choroidal haemangioma and subfoveal exudation detected by optical coherence tomography are described in this paper. The three patients were successfully treated with photodynamic therapy. DISCUSSION Photodynamic therapy is the most adequate therapeutic option for circumscribed choroidal hemangioma associated with s...

Lipid in the intestinal lumen is mainly dietary in origin, but there is also an endogenous component from bile, bacteria, and the mucosa (through exudation and cell loss). Perfusion experiments in fasting rats demonstrate that exfoliated cells carry with them into the small intestinal lumen an average of 1.12 mg lipid/30 minutes; lipid classes consisting of phosphatidyl choline (lecithin), trig...

PURPOSE To report a case of familial exudative vitreoretinopathy with a retinal capillary angioma and persistent macular exudation treated with photodynamic therapy. DESIGN Interventional case report. METHODS A 39-year-old woman with familial exudative vitreoretinopathy presented with an intraretinal capillary angioma temporally with persistent macular exudation despite previous vitrectomy ...

Physical Background. Sap exudation refers to the process whereby sugar maple trees (Acer saccharum) are capable of generating significant stem pressure in a leafless state, something that occurs to a lesser extent in only a few other related species such as birch and walnut. This exudation pressure is what causes maple sap to flow from a taphole in sufficient quantities to be harvested and proc...

The relationship between root morphological and physiological responses to variable P supply in different plant species is poorly understood. We compared root morphological and physiological responses to P supply in seven crop species (Zea mays, Triticum aestivum, Brassica napus, Lupinus albus, Glycine max, Vicia faba, Cicer arietinum) treated with or without 100 mg P kg-1 in two soils (acidic ...

Accumulation of K(+) is insensitive to the anion supplied with it at a solution concentration below 1 mm. Rates of K(+) transport to the xylem from the same solutions are, however, dependent upon the anion present and decrease in the order NO(3) (-) >> Cl(-) > SO(4) (2-). Parallel effects on rates of exudation and anion transport result from kind and concentration of anion supplied and time of ...

Seagrass roots host a diverse microbiome that is critical for plant growth and health. Composition of microbial communities can be regulated in part by root exudates, but the specifics of these interactions in seagrass rhizospheres are still largely unknown. As light availability controls primary productivity, reduced light may impact root exudation and consequently the composition of the root ...