Increasing nitrogen supply to phosphorus-deficient Medicago sativa decreases shoot growth and enhances root exudation of tartrate to discharge surplus carbon dependent on nitrogen form

• Published in: Plant and soil Vol. 469; no. 1/2; pp. 193 - 211
• Main Authors: He, Honghua, Zhang, Zekun, Peng, Qi, Chang, Chao, Su, Rui, Cheng, Xiao, Li, Yingxin, Pang, Jiayin, Du, Sheng, Lambers, Hans
• Format: Journal Article
• Language: English
• Published: Cham Springer Science + Business Media 01.12.2021; Springer International Publishing; Springer; Springer Nature B.V
• Subjects: Agriculture; Alfalfa; Analysis; biomass; Biomedical and Life Sciences; Carbon; Discharge; Ecology; Exudation; greenhouse experimentation; Growth; Identification and classification; Life Sciences; Medicago sativa; Methods; Nitrogen; nitrogen content; Phosphorus; Plant growth; plant nitrogen content; Plant Physiology; Plant Sciences; Plant-soil relationships; Regular Article; REGULAR ARTICLES; Roots; Shoots (Botany); soil; Soil Science & Conservation; Soils; Australia; China; Alfalfa; Biomass allocation; Fertilisation; Carboxylate release; Nutritional status; Nitrogen to phosphorus ratio

Aims Carboxylate release by roots has been considered a strategy for mobilisation and acquisition of phosphorus (P). However, recently, it was argued that carboxylate release may be a way to discharge surplus carbon produced under conditions that limit plant growth. Plant P status may not be the mai...