Publication Type: | Journal Article |
Year of Publication: | 2011 |
Authors: | Rosas, A, Rengel, Z, Ribera, A, Mora, Mde La Luz |
Journal: | Journal of Plant Nutrition and Soil Science |
Volume: | 174 |
Issue: | 2 |
Date Published: | 2011 |
ISBN Number: | 1522-2624 |
Keywords: | Lolium, Lolium perenne, metal avoidance, metal toxicity, organic acids, perennial ryegrass, Trifolium, Trifolium repens, white clover |
Abstract: | Phosphorus (P) nutrition has been suggested to play a role in the alleviation of manganese (Mn) toxicity in some higher plant species. However, there are few reports on the role of P in regulating Mn accumulation by forage species. We studied the effect of P nutrition on Mn toxicity in Lolium perenne L. and Trifolium repens L. An increase in Mn concentration in root and shoot tissues was associated with an increase in both P supply and P tissue concentrations. Nevertheless, in both forage species, especially white clover, plant-growth inhibition caused by Mn excess was decreased with increasing P additions. Moreover, the carboxylate exudation that had increased in response to high Mn was gradually reduced by increasing P supply. We suggest that P supply may have a beneficial effect in reducing the severity of Mn toxicity in forage species. |
URL: | http://dx.doi.org/10.1002/jpln.201000104 |
Short Title: | Journal of Plant Nutrition and Soil Science |
Phosphorus nutrition alleviates manganese toxicity in Lolium perenne and Trifolium repens
Taxonomic name: