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@article{775957,
author = {Gloser, Vít and Sedláček, Pavel and Gloser, Jan},
article_location = {Berlin / Heidelberg},
article_number = {1},
keywords = {sectorial xylem anatomy; PNUE; photosynthesis; 15N labeling},
language = {eng},
issn = {0931-1890},
journal = {Trees - Structure and function},
note = {DOI 10.1007/s00468-008-0248-1},
title = {Consequences of nitrogen deficiency induced by low external N concentration and by patchy N supply in Picea abies and Thuja occidentalis},
url = {http://www.springerlink.com/content/p525l511x24n363k/fulltext.html},
volume = {23},
year = {2009}
}
TY - JOUR
ID - 775957
AU - Gloser, Vít - Sedláček, Pavel - Gloser, Jan
PY - 2009
TI - Consequences of nitrogen deficiency induced by low external N concentration and by patchy N supply in Picea abies and Thuja occidentalis
JF - Trees - Structure and function
VL - 23
IS - 1
SP - 1-9
EP - 1-9
PB - Springer
SN - 09311890
N1 - DOI 10.1007/s00468-008-0248-1
KW - sectorial xylem anatomy
KW - PNUE
KW - photosynthesis
KW - 15N labeling
UR - http://www.springerlink.com/content/p525l511x24n363k/fulltext.html
N2 - 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.
ER -
GLOSER, Vít, Pavel SEDLÁČEK a Jan GLOSER. Consequences of nitrogen deficiency induced by low external N concentration and by patchy N supply in Picea abies and Thuja occidentalis. \textit{Trees - Structure and function}. Berlin / Heidelberg: Springer, roč.~23, č.~1, s.~1-9. ISSN~0931-1890. 2009.
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