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. 1994 Jan;104(1):85-90.
doi: 10.1104/pp.104.1.85.

Essentiality of Boron for Symbiotic Dinitrogen Fixation in Pea (Pisum sativum) Rhizobium Nodules

L. Bolanos  1 , E. Esteban, C. De Lorenzo, M. Fernandez-Pascual, M. R. De Felipe, A. Garate, I. Bonilla
Affiliations

Essentiality of Boron for Symbiotic Dinitrogen Fixation in Pea (Pisum sativum) Rhizobium Nodules

L. Bolanos et al. Plant Physiol. 1994 Jan.

Abstract

The effect of boron deficiency on symbiotic nitrogen fixation in pea (Pisum sativum) was examined. The absence of boron in the culture medium resulted in a decrease of the number of nodules and an alteration of nodule development leading to an inhibition of nitrogenase activity. Examination of boron-deficient nodules showed dramatic changes in cell walls and in both peribacteroid and infection thread membranes, suggesting a role for boron in the stability of these structures. These results indicate that boron is a requirement for normal nodule development and functionality.

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