Consequences of nitrogen deficiency induced by low external N concentration and by patchy N supply in Picea abies and Thuja occidentalis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F09%3A00029093" target="_blank" >RIV/00216224:14310/09:00029093 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Consequences of nitrogen deficiency induced by low external N concentration and by patchy N supply in Picea abies and Thuja occidentalis

Original language description

We examined the responses of two coniferous species Picea abies and Thuja occidentalis to decreased nitrogen availability.Nitrogen availability was reduced either by lower N concentration in the nutrient solution or by a patchy supply of a high N concentration to only one side root isolated in a split-root setup. Low N availability resulted in lower specific leaf area and photosynthetic rate in Thuja. Photosynthetic nitrogen use efficiency, however, linearly decreased with increasing N content only in Thuja. Patchy N supply caused uneven distribution of newly acquired labeled nitrogen and total N but did not result in significantly greater heterogeneity in the rate of photosynthesis among branches both in Picea and in Thuja plants. Both examined species possess mechanisms that reduce adverse effects of patchy N supply and restricted nitrogen transport in xylem to some parts of crown on their photosynthetic carbon assimilation.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

ED - Physiology

OECD FORD branch

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Project

<a href="/en/project/GA522%2F04%2F0631" target="_blank" >GA522/04/0631: Modifying effect of different vascular architecture on nitrogen utilization in trees</a><br>

Continuities

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

Publication year

2009

Confidentiality

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

Name of the periodical

Trees - Structure and function

ISSN

0931-1890

e-ISSN

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Volume of the periodical

23

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

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UT code for WoS article

000262538700001

EID of the result in the Scopus database

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