Plant sap

Plant sap is the fluid transported in xylem cells or phloem sieve tube elements of a plant. These fluids can be derived from two different sources, intracellular and extracellular sap.

Intracellular sap

Intracellular sap is the water inside the vacuole, which is enclosed by the tonoplast (vacuole membrane). This sap contains a variety of organic and inorganic molecules including sugars, organic acids, amino acids, and salts.

Extracellular sap

Extracellular sap, also known as latex, is a sticky milky fluid found in some plants, such as poppy, dandelion, rubber tree, aloe, and banana. It contains a variety of compounds, including alkaloids, glycosides, proteins, and polysaccharides.

Functions

Plant sap serves several functions in the plant. It is involved in nutrient transport, waste removal, and water balance. It also plays a role in plant defense against herbivores and pathogens.

See also

• Cell sap
• Latex
• Sap (disambiguation)

References

Plant sap Resources
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