Physiological functions of mineral macronutrients

TY - JOUR

T1 - Physiological functions of mineral macronutrients

AU - Maathuis, Frans J. M.

PY - 2009/6

Y1 - 2009/6

N2 - Plants require calcium, magnesium, nitrogen, phosphorous, potassium and sulfur in relatively large amounts (>0.1% of dry mass) and each of these so-called macronutrients is essential for a plant to complete its life cycle. Normally, these minerals are taken up by plant roots from the soil solution in ionic form with the metals Ca2+, Mg2+ and K+ present as free cations, P and S as their oxyanions phosphate (PO43-) and sulfate PO42-) and N as anionic nitrate (NO3-)or cation ammonium (NH4+). Recently, important progress has been made in identifying transport and regulatory mechanisms for macronutrients and the mechanisms of uptake and distribution. These and the main physiological roles of each nutrient will be discussed.

AB - Plants require calcium, magnesium, nitrogen, phosphorous, potassium and sulfur in relatively large amounts (>0.1% of dry mass) and each of these so-called macronutrients is essential for a plant to complete its life cycle. Normally, these minerals are taken up by plant roots from the soil solution in ionic form with the metals Ca2+, Mg2+ and K+ present as free cations, P and S as their oxyanions phosphate (PO43-) and sulfate PO42-) and N as anionic nitrate (NO3-)or cation ammonium (NH4+). Recently, important progress has been made in identifying transport and regulatory mechanisms for macronutrients and the mechanisms of uptake and distribution. These and the main physiological roles of each nutrient will be discussed.

KW - HIGH-AFFINITY POTASSIUM

KW - ARABIDOPSIS-THALIANA

KW - SULFATE TRANSPORTERS

KW - SULFUR METABOLISM

KW - GENE-EXPRESSION

KW - PLANTS

KW - PHOSPHATE

KW - ACID

KW - ACCUMULATION

KW - NUTRITION

UR - http://www.scopus.com/inward/record.url?scp=66949149147&partnerID=8YFLogxK

U2 - 10.1016/j.pbi.2009.04.003

DO - 10.1016/j.pbi.2009.04.003

M3 - Literature review

SN - 1369-5266

VL - 12

SP - 250

EP - 258

JO - CURRENT OPINION IN PLANT BIOLOGY

JF - CURRENT OPINION IN PLANT BIOLOGY

IS - 3

ER -