Open AccessDETERMINATION OF L-ARGININE CONTENT IN SCOTS PINE NEEDLES USING THE SAKAGUCHI TEST
Author(s) -
Н. П. Чернобровкина,
E. V. Robonen,
К. М. Никерова,
Н. А. Галибина,
Tamara Nikolayevna Makarova,
Andrey Vladimirovich Repin
Publication year - 2020
Publication title -
himiâ rastitelʹnogo syrʹâ
Language(s) - English
Resource type - Journals
eISSN - 1029-5151
pISSN - 1029-5143
DOI - 10.14258/jcprm.2020036645
Subject(s) - arginine , chromogenic , chemistry , scots pine , chromatography , pinus <genus> , amino acid , botany , biochemistry , biology
Arginine can be accumulated in substantial amounts in coniferous plants whose mineral nutrition is regulated. A simple, quick, accurate and inexpensive method for determining the amino acid in coniferous plant organs is needed to improve the technique of raising the arginine level in the plants and making arginine-rich products of their needles. The aim of this study was to modificate a spectrophotometric method for determining arginine in Pinus sylvestris L. needles containing low or abnormally high levels of the amino acid using the Sakaguchi test. Our studies revealed the agents providing for maximum extraction of arginine from needles. Techniques for stripping the extract of organic compounds and chromogenic reagents for the Sakaguchi test were tested, and the wavelengths of maximum optical absorption of solvents in needle arginine content spectrophotometric analysis were determined. This method is simple, reproducible, accurate, and can be employed to quickly analyze pine needles for arginine content, in particular when developing techniques for augmenting it in coniferous plants and making arginine-rich products of coniferous needles.