The multiple plant response to high ammonium conditions

• DOI: 10.4161/psb.5.12.13856
• Publication Date: 2011-04-13T22:46:18Z
• Authors: Alessandra Rogato; Enrica D’Apuzzo; Maurizio Chiurazzi
• Keywords: Assimilation (phonology); Lotus japonicus

Plant evolved a complex profile of responses to cope with changes nutrient availability in the soil. These are based on stringent control expression and/or activity proteins involved nutrients transport and assimilation. Furthermore, sensing signaling system for scanning concentration substrates rooted area transmitting this information plant machinery controlling root development can be extremely useful an efficient response. Ammonium represents plants either preferential nitrogen source or trigger toxicity symptoms depending by its concentration. We propose role high affinity Lotus japonicus ammonium transporter LjAMT1;3 as intracellular sensor achieve convenient modulation conditions potentially toxic external