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@article{406137,
author = {Gloser, Vít},
article_location = {DORDRECHT},
article_number = {4},
keywords = {AMINO-ACID POOLS; HERBACEOUS PLANTS; NITROPHILIC WEED; WINTERING STAGE; LOLIUM-PERENNE; URTICA-DIOICA; REGROWTH; CARBOHYDRATE; DYNAMICS; PROTEINS},
language = {eng},
issn = {0006-3134},
journal = {Biologia Plantarum},
title = {Seasonal changes of nitrogen storage compounds in a rhizomatous grass Calamagrostis epigeios},
volume = {45},
year = {2002}
}
TY - JOUR
ID - 406137
AU - Gloser, Vít
PY - 2002
TI - Seasonal changes of nitrogen storage compounds in a rhizomatous grass Calamagrostis epigeios
JF - Biologia Plantarum
VL - 45
IS - 4
SP - 563-568
EP - 563-568
PB - KLUWER ACADEMIC PUBL
SN - 00063134
KW - AMINO-ACID POOLS
KW - HERBACEOUS PLANTS
KW - NITROPHILIC WEED
KW - WINTERING STAGE
KW - LOLIUM-PERENNE
KW - URTICA-DIOICA
KW - REGROWTH
KW - CARBOHYDRATE
KW - DYNAMICS
KW - PROTEINS
N2 - The seasonal dynamics in content and distribution of N-rich compounds between overwintering organs of Calamagrostis epigeios were examined. Samples were taken both from plants grown in natural conditions and in containers with controlled nutrient supply. There were significant changes in content of nitrate, free amino acids and soluble protein in all investigated plant parts during the course of a year. Amino acids showed both the highest maximum and seasonal fluctuation among the all N compounds observed and, therefore, appear to have a central role in N storage. Their content rises in the autumn, remains stable during winter and declines quickly at the beginning of spring. The most abundant amino acids in the end of winter storage period - asparagine, arginine and glutamine - constituted about 90% of N in fraction of free amino acids. The portion of N stored in soluble proteins, however, was considerably smaller compare to both amino acids and nitrate. The amount of N stored in rhizomes of C epigeios was smaller than in roots and stubble base before the onset of spring re-growth. This indicates that roots and stubble base are particularly important for winter N storage in this species.
ER -
GLOSER, Vít. Seasonal changes of nitrogen storage compounds in a rhizomatous grass Calamagrostis epigeios. \textit{Biologia Plantarum}. DORDRECHT: KLUWER ACADEMIC PUBL, 2002, roč.~45, č.~4, s.~563-568. ISSN~0006-3134.
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