Open AccessChanges in total nitrogen, protein, amino acids and NH + 4 in tissues of bilberry, Vaccinium myrtillus, during the growing season
Author(s) -
Lähdesmäki Pekka,
Pakonen Tuulikki,
Saari Esko,
Laine Kari,
Tasanen Leena,
Havas Paavo
Publication year - 1990
Publication title -
ecography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.973
H-Index - 128
eISSN - 1600-0587
pISSN - 0906-7590
DOI - 10.1111/j.1600-0587.1990.tb00586.x
Subject(s) - vaccinium myrtillus , bilberry , nitrogen , amino acid , rhizome , arginine , chemistry , botany , growing season , vaccinium , biology , biochemistry , organic chemistry
Free amino acids and related compounds together with total nitrogen, total protein and soluble small‐molecular nitrogen were analyzed quantitatively in monthly tissue samples from bilberry, Vaccinium myrtillus , from 15 May to 24 September 1985, in Oulu, northern Finland. Pronounced accumulation (at the millimolar level) of soluble low‐molecular‐weight nitrogen in the form of free amino acids was observed at the end of September. Arginine in particular accumulated in the rhizomes and older branches. Protein levels remained relatively constant. Mobilization of amino acids from winter storage into the growing tissues (buds) was evident in May.