Effect of Aluminum on Uptake & Translocation of Phosphorus by Perennial Ryegrass.
نویسندگان
چکیده
A major effect of aluminum toxicity in plants is the disturbance of phosphorus assimilation. Wright (15) noted similar symptoms in beet plants grown in phosphorus-deficient media and in culture solution containing aluminum, while work at Aberystwyth (13) has shown that ryegrass lines resistant to aluminum toxicity require much higher levels of aluminum to dlevelop aluminunm toxicity/phosphorus deficiency symptoms than do control unselected lines. Burgess and Pember (1) suggested that the action of acid phosphate fertilizer in reducing aluminum toxicity effects was due to a phosphate-aluminum interaction within the root. Further work by Wright, (16, 17, 18) developed the hypothesis that aluminum was precipitated as the phosphate within the root, while Wallihan (14) thought the precipitation was more likely to occur on the root. With the exception of our preliminary communication (10) little work appears to have been carried out on the possible role of metabolic factors in the aluminum/phosphate interaction, although during the preparation of this paper Ragland and Coleman (9), using excised snap bean roots, have reported results similar to some of ours. This paper describes the influence of aluminum on the uptake and translocation of P32-labeled phosphorus and the effect on this interaction of certain metabolic inhibitors.
منابع مشابه
Phosphorus nutrition-mediated effects of arbuscular mycorrhiza on leaf morphology and carbon allocation in perennial ryegrass.
The aim of this work was to disentangle phosphorus status-dependent and -independent effects of arbuscular mycorrhizal fungus (AMF) on leaf morphology and carbon allocation in perennial ryegrass (Lolium perenne). To this end, we assessed the P-response function of morphological components in mycorrhizal and nonmycorrhizal plants of similar size. AMF (Glomus hoi) stimulated relative P-uptake rat...
متن کاملEarly response mechanisms of perennial ryegrass (Lolium perenne) to phosphorus deficiency
BACKGROUND AND AIMS Improving phosphorus (P) nutrient efficiency in Lolium perenne (perennial ryegrass) is likely to result in considerable economic and ecological benefits. To date, research into the molecular and biochemical response of perennial ryegrass to P deficiency has been limited, particularly in relation to the early response mechanisms. This study aimed to identify molecular mechani...
متن کاملThe effects of maleic hydrazide on growth control of perennial ryegrass (lolium perenne L.CV. yarandi)
متن کامل
Effects of Arbuscular Mycorrhiza and Phosphorus Supply on the Growth of Perennial Ryegrass
Aim: The basic aim of this thesis was to disentangle phosphorus status-dependent and -independent effects of arbuscular mycorrhizal fungi (AMF, Glomus hoi) on the components of plant growth: morphology and assimilation rates, in perennial ryegrass (Lolium perenne L.). Materials & Methods: In a first experiment, I assessed phosphorus response functions of leaf and plant morphological components ...
متن کاملEffect of Phosphatic Fertilizers on Chemical Composition and Total Phosphorus Uptake by Wheat (Triticum aestivum L.)
Wheat (Triticum aestivum L.) was grown in earthen pots containing soil of Balkasar Soil Series (Sandy Loam) in green house at the Department of Soil Science and SWC, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi during Rabi season, 2007. The Crop was treated with two levels of Phosphorus (40 and 80 kg P ha-1 ) in the form of SSP, TSP, NP and DAP. A basal doze of 100 kg N and 60 kg K...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Plant physiology
دوره 38 4 شماره
صفحات -
تاریخ انتشار 1963