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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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