Isotope composition of carbon and nitrogen in tissues and organs of Betula pendula / Voronin P. Yu.,Mukhin V. A.,Velivetskaya T. A.,Ignat'ev A. V.,Kuznetsov Vl. V. // RUSSIAN JOURNAL OF PLANT PHYSIOLOGY. - 2017. - V. 64, l. 2. - P. 184-189.

ISSN/EISSN:

1021-4437 / 1608-3407

Type:

Article

Abstract:

Ratios of D-13/C-12 and N-15/N-14 isotopes were identified in different parts and organs of drooping birch (Betula pendula Roth) in preforest-steppe and pine-birch forests of the Middle Urals by mass spectrometry. The data were analyzed and interpreted from the perspective of biochemical processes of carbon and nitrogen metabolism in the leaf, cambial tissue, trunk wood, branches, roots, and in the soil. The lighter isotopic composition of carbon is characteristic for the leaves, trunk cambium as well as fine (< 2 mm) roots. The trunk wood is characterized by the basal trend for C-13 enrichment. The heavier carbon isotopic composition inversely related to metabolic activity of organs and tissues, in addition, D-13/C-12 ratio corresponds to the nitrogen content in the organs and tissues, indicating the metabolic control of carbon fractionation in woody plants. The isotopic composition of nitrogen in the aboveground parts of the plant (leaves, trunk cambium, wood) and in the medium and fine roots was significantly depleted in N-15 (delta N-15 varies from 0 to-3aEuro degrees), while main roots (delta N-15 = 0.6 aEuro degrees) and soil (delta N-15 = 2.4-6.7aEuro degrees) were more enriched. The ratio of stable isotopes of carbon and nitrogen is an integrating index of carbon and nitrogen metabolism in plants.

Author keywords:

Betula pendula; soil; carbon and nitrogen metabolism; isotope fractionation; C-13; N-15 VARIABILITY; SOIL

DOI:

10.1134/S1021443717010174

Web of Science ID:

ISI:000396273700006

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1608-3407
Keywords-Plus	VARIABILITY; SOIL
Research-Areas	Plant Sciences
Web-of-Science-Categories	Plant Sciences
Author-Email	pavel@ippras.ru
ResearcherID-Numbers	Kuznetsov, Vladimir/N-7687-2014
Funding-Acknowledgement	Government of the Russian Federation {[}211, 02.A03.21.0006]; Russian Foundation for Basic Research {[}15-04-06881]; Ural Branch of the Russian Academy of Sciences {[}15-12-4-27]
Funding-Text	This study was supported by the Government of the Russian Federation (decree no. 211, the contract no. 02.A03.21.0006), the Russian Foundation for Basic Research, project no. 15-04-06881, and the Ural Branch of the Russian Academy of Sciences, project no. 15-12-4-27.
Number-of-Cited-References	21
Usage-Count-Last-180-days	7
Usage-Count-Since-2013	7
Journal-ISO	Russ. J. Plant Physiol.
Doc-Delivery-Number	EN8TW