5 resultados
The Na(+) and K(+) transport characteristics of Spergularia marina (L.) Griseb. were considered in order to compare the systems by which these two physiologically different cations are managed during initial acquisition and subsequent partitioning in midvegetative plants. Uptake of (22)Na(+) and
In this report, we consider the accumulation in roots, and transport to the shoot, of Na(+) and K(+) in intact lettuce plants (Lactuca sativa cv Black-seeded Simpson). Plants were grown in modified Hoagland medium supplemented with 10 moles NaCl per cubic meter. At this salinity, significant levels
The antihypertensive and diuretic effects of the flavonoids extracted from Spergularia purpurea Pers. (SP) were studied both in normotensive (NTR) and spontaneously hypertensive conscious rats (SHR). Daily oral administration of the flavonoid mixture (5 mg/kg for 1 week) exhibited a significant
Addition of inorganic nitrogen, phosphorus and potassium in a factorial design in two ungrazed Wadden-Sea salt marshes at low and high elevations showed that nitrogen was the limiting nutrient. No effects of nutrient addition were detected in the 1st year, probably due to a considerable rainfall
Ion concentration and saturation water content were measured in various aged leaves of halophytes growing in saline soils east of lake Neusiedlersee (Austria).All species investigated showed a substantial sodium accumulation within the maturing organs accompanied by a considerable potassium decline.