Author(s): Faria, Jorge M.S. ; Teixeira, Dora Martins ; Pinto, Ana Paula ; Barrulas, Pedro ; Brito, Isabel ; Carvalho, Mário
Date: 2023
Persistent ID: http://hdl.handle.net/10174/34797
Origin: Repositório Científico da Universidade de Évora
Subject(s): acidic soil; arbuscular mycorrhizal fungi; extraradical mycelium; manganese; sustainable farming; wheat
In the present study, the levels of Al, Fe, Mn and Zn in wheat shoots were quantified by inductively coupled plasma mass spectrometry (ICP-MS). Wheat was grown in an acidic soil with toxic levels of Mn and with intact or disrupted extraradical mycelium (ERM) as the arbuscular mycorrhizal fungi (AMF) inoculum source, resulting from the previous growth of O. compressus. In the presence of an intact ERM, toxic Mn levels were reduced, and the concentrations of Al, Fe and Zn decreased 2.3, 1.5 and 2.3-fold, respectively. Disruption of ERM, that leads to a later and slower AM colonization, induced higher wheat shoot Mn and Zn levels (55% and 28%, respectively), but not Al and Fe. Under Mn toxicity, the colonization of wheat by intact ERM of AMF associated with O. compressus in an acidic soil appears to influence the uptake of Al, Fe and Zn, and positively influence plant growth.
