Université de Neuchâtel

Secretion activity of white lupin’s cluster roots influences bacterial abundance, function and community structure

Weisskopf, Laure ; Fromin, Nathalie ; Tomasi, Nicola ; Aragno, Michel ; Martinoia, Enrico

In: Plant and Soil, 2005, vol. 268, no. 1, p. 181-194

White lupin (Lupinus albus L. cv. Amiga) reacts to phosphate deficiency by producing cluster roots which exude large amounts of organic acids. The detailed knowledge of the excretion physiology of the different root parts makes it a good model plant to study plant-bacteria interaction. Since the effect of the organic acid exudation by cluster roots on the rhizosphere microflora is still...