Reakcje roślin na deficyt fosforanów

• Autorzy: Iwona Ciereszko , Monika Stulgis

Warianty tytułu

EN

Plant responses to phosphate deficiency

Abstrakty

EN

Phosphorus is one of the essential minerals necessary for proper growth, metabolism and development of plants. In many soils in the world the deficiency of inorganic phosphates (Pi) is often observed. It is estimated that natural sources of this element, necessary for production of mineral fertilizers, will be exhausted within ten years. Knowledge of the availability of phosphate is very important in agricultural areas because phosphorus deficiency can significantly reduce the production of crops, mainly grains. This will cause higher costs of food production, especially in developing countries. Plants have evolved two basic types of adaptation to phosphate stress conditions. The first enables the absorption and uptake of Pi by the root system, other mechanisms allow for efficient use of the reduced pool of Pi. The assimilation of Pi can be increased through secretion of various substances by the roots, including the release of organic acids or enzymes – extracellular APases. The mycorrhiza and soil microorganisms also play an important role. Intracellular APases are involved in the release of Pi from internal resources of the plant.

Słowa kluczowe

EN

plants; inorganic phosphates (Pi); assimilation of Pi; Apases

• Wydawca: Instytut Badań Edukacyjnych
• Czasopismo: Edukacja Biologiczna i Środowiskowa
• Rocznik: 2012
• Numer: 4
• Strony: 47-55

Twórcy

autor

Iwona Ciereszko

• Uniwersytet w Białymstoku, Instytut Biologii

autor

Monika Stulgis