Possible consequences of an inability of plants to control manganese uptake

Abstract Background This commentary presents several thoughts elicited by the observation of Lambers et al. (Plant Soil, 2021) in this Special Issue that release carboxylates roots increases manganese (Mn) uptake plants. Manganese is a plant nutrient, but toxic excess. Root cells take up Mn from rhizosphere solution through non-specific transporters, whose activities are regulated elements other than Mn, and phytoavailability soil also impacted nutritional status Mn. These complications could result being unable to respond appropriately vagaries phytoavailability. Scope The suggest phenomenon might be used identify species into response P deficiency. We that, for approach colleagues successful, it necessary all plants compared (1) capable increasing root leaf concentration should released, increase these similar extent quantitative, (2) tolerate greater tissue concentrations resulting increased Conclusions observe requirement, critical toxicity capacity accumulation when grown hydroponically nutrient-replete positively correlated among species, which suggests they have evolved parallel, although some orders containing accumulating large shoot typically non-mycorrhizal rhizosphere, such as Proteales, many with trait characterised conventional mycorrhizal associations.