Memorias de investigación
Research Publications in journals:
Root iron uptake efficiency of Ulmus laevis and U. minor and their distribution in soils of the Iberian Peninsula
Year:2014

Research Areas
  • Natural sciences and health sciences

Information
Abstract
The calcifuge and calcicole character of wild plants has been related to nutrient availability shortages, including iron (Fe)-deficiency. Surprisingly, just a few studies examined the relation between root Fe uptake and plant distribution in different soil types. We assessed the root Fe acquisition efficiency of two Ulmus species with calcareous (Ulmus minor) and siliceous (U. laevis) soil distribution patterns in the Iberian Peninsula. Seedlings of both elm species were grown hydroponically with different Fe concentrations during 6 weeks. Plant physiological responses to Fe-limiting conditions were evaluated as were the ferric reductase activity and proton (H+) extrusion capacity of the roots. Iron deprived elm seedlings of both species were stunted and suffered severe Fe-chlorosis symptoms. After Fe re-supply leaf chlorophyll concentrations rose according to species-dependent patterns. While U. minor leaves and seedlings re-greened evenly, U. laevis did so along the nerves of new growing leaves. U. minor had a higher root ferric reductase activity and H+-extrusion capability than U. laevis and maintained a better nutrient balance when grown under Fe-limiting conditions. The two elm species were found to have different Fe acquisition efficiencies which may be related to their natural distribution in calcareous and siliceous soils of the Iberian Peninsula.
International
Si
JCR
Si
Title
Frontiers in Plant Science
ISBN
1664-462X
Impact factor JCR
3,637
Impact info
Factor impacto 2014
Volume
5
10.3389/fpls.2014.00104
Journal number
104
From page
1
To page
9
Month
SIN MES
Ranking
0
Participants

Research Group, Departaments and Institutes related
  • Creador: Departamento: Sistemas y Recursos Naturales