Work

Effect of boron supply on nitrate concentration and its reduction in roots and leaves of tobacco plants

Year: 2009

Type: article

Abstract: Shoot and root mass of tobacco plants treated with only 0.05 µM boron was decreased by 25 and 50 %, respectively, when compared to plants sufficiently supplied with B (2 and 5 µM). Leaf B content of 0.05 µM B-treated plants decreased (about 80-90 %) when compared to 2 µM B treated plants; this drop of B content were not as marked (about 25-45 %) in roots. Leaf and root nitrate contents in B-deficient plants were 45-60 % and 35-45 % lower, respectively, than those from 2 and 5 µM B treated plants. It is suggested that B deficiency might decrease nitrate uptake rather than nitrate reductase activity in tobacco plants.

Source: Biologia Plantarum

DOI: 10.1007/s10535-009-0016-0

Authors: M. A. Matas, A. González-Fontes, J. J. Camacho-Cristóbal

Institution: Universidad Pablo de Olavide

Language: English

Topic: Plant Micronutrient Interactions and Effects

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

Funder: Junta de Andalucía