Use of Carbon Isotopes to Estimate Incorporation of Added CO2 by Greenhouse-Grown Tomato Plants | Zendy

H.Z. Enoch | Zendy; Israel Carmi | Zendy; J. S. Rounick | Zendy; Mordeckai Magaritz | Zendy

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Use of Carbon Isotopes to Estimate Incorporation of Added CO₂ by Greenhouse-Grown Tomato Plants

Author(s) -

H.Z. Enoch,

Israel Carmi,

J. S. Rounick,

Mordeckai Magaritz

Publication year - 1984

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.76.4.1083

Subject(s) - lycopersicon , greenhouse , natural abundance , isotopes of carbon , chemistry , carbon fibers , isotope , carbon 14 , horticulture , environmental chemistry , environmental science , total organic carbon , biology , chromatography , mathematics , mass spectrometry , physics , composite number , algorithm , quantum mechanics

A method is presented which uses the (13)C and (14)C isotope abundance in CO(2)-enriched greenhouse crops to determine the percentage of plant organic carbon derived from artificially added CO(2). In a greenhouse experiment with CO(2) concentrations elevated to 1100 +/- 100 microliters per liter during part of the daylight hours and maintained at normal atmospheric concentrations (340 microliters per liter) during the rest of the time, it was shown by (14)C analysis that between 41% and 42% of the carbon in tomato plants (Lycopersicon esculentum var 4884) came from the artificially added CO(2). Similar results were obtained from (13)C analyses when the CO(2) pressure-dependent isotope separation was taken into account.

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