Phosphate metabolism in plants

•BY. DILIP K PANDYA

IMPORTANCE OF PHOSPHATE IN PLANT

Phosphate is an important macronutrient in a plant. making up about 0.2% of a plant’s dry weight.

It is a component key of nucleic acids carbohydrate phospholipids ATP

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.

After N, P is the second most frequently limiting macronutrient for plant growth.

Phosphate is mostly presence in soil. Which is uptake by plant using specific transporter present in a cell membrane.

Pi UPTAKE Plant root geometry and morphology are

important for maximizing P uptake.

root systems that have higher ratios of surface area to volume will more connected to soil.

since the concentration of this phosphate in the soil solution is low but plant requirements are high.

Pi Transporter

Plant Energy Reactions

Phosphorus plays a vital role in every plant process that involves energy transfer.

High-energy phosphate, of ADP and ATP, is the source of high energy that is play important role In chemical reactions of the plant.

When ADP and ATP transfer the high-energy phosphate to other molecules (by phosphorylation), Is important process in many plant chemical reaction .

Photosynthesis The most important chemical reaction in nature is photosynthesis.

Photosynthesis utilizes light energy in the presence of chlorophyll to combine carbon dioxide and water into simple Sugars, with the energy being captured in ATP.

The ATP is then available as an energy source for the many other reactions that occur within the plant, and the sugars are used as building blocks to produce other cell structural and storage components.

Phosphorus Deficiency

Optimum growth and development of the plant to proceed at a normal pace require a phosphate molecule.

P-deficient leaves develop a purple colour.

Symptoms of phosphorus