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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

ED - Fyziologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Plant Physiology

ISSN

0176-1617

e-ISSN

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Svazek periodika

173

Číslo periodika v rámci svazku

JAN 15 2015

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

120-129

Kód UT WoS článku

000345633700015

EID výsledku v databázi Scopus

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