High nitrate supply reduces growth in maize, from cell to whole plant

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33153004" target="_blank" >RIV/61989592:15310/14:33153004 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S017616171400193X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S017616171400193X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jplph.2014.06.018" target="_blank" >10.1016/j.jplph.2014.06.018</a>

Result language
angličtina
Original language name
High nitrate supply reduces growth in maize, from cell to whole plant
Original language description
Nitrogen (N) is an essential macronutrient that limits agricultural productivity, and both low and high N supply have been suggested to alter plant growth. The overall aim of this work is to study the impact of nitrate (NO3-) in maize yield and the possible causes that induce this alteration. High NO3- doses did not increase the yield of maize grown neither in the field nor under controlled conditions. In fact, plants grown under controlled conditions for 45 days with NO3- concentrations over 5 mM showed a decrease in biomass production. This reduction was perceptible in shoots prior to roots, where phytomer expansion was reduced. Cell size and number were also reduced in the leaves of plants with high NO3-. This alteration was correlated with the increase of 1-aminocyclopropane-1-carboxylic acid in leaves, which was probably translocated from the roots in order to synthesize ethylene. Cytokinins (CKs) also showed a relevant role in this inhibitory effect, increasing in high NO3- plant
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
ED - Physiology
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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