The Soil and Land Systems discipline was part of the School of Earth and Environmental Sciences until 2013. Since then Soil Science has become part of the School of Agriculture, Food and Wine.
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Browsing Soil and Land Systems by Author "Ayling, Sarah M."
(American Society of Plant Biologists, 1998) Schachtman, Daniel P.; Reid, Robert J.; Ayling, Sarah M.; School of Earth and Environmental Sciences : Soil and Land Systems
P is an important plant macronutrient, making up about 0.2% of a plant's dry weight. It is a component of key molecules such as nucleic acids, phospholipids, and ATP, and, consequently, plants cannot grow without a reliable supply of this nutrient. Pi is also involved in controlling key enzyme reactions and in the regulation of metabolic pathways (Theodorou and Plaxton, 1993). After N, P is the second most frequently limiting macronutrient for plant growth. This update focuses on P in soil and its uptake by plants, transport across cell membranes, and compartmentation and redistribution within the plant. We will concentrate on P in higher plants, although broadly similar mechanisms have been shown to apply in algae and fungi.