Phosphate is a vital macronutrient for plants, constituting about 0.2% of a plant’s dry weight and is crucial for nucleic acids, ATP, and metabolic pathways. It plays a key role in energy transfer and photosynthesis, where it is involved in the production of ATP from light energy. Phosphorus deficiency can lead to purple coloration in leaves, indicating the importance of adequate phosphate for optimal plant growth.

1. Phosphate metabolism in plants
•BY. DILIP K PANDYA

2. 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

3.  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.

4. 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.

6. Pi Transporter

7. 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 .

8. 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.

10. 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.

11. Symptoms of phosphorus