Assimilation and conversion of 3,4-benzpyrene by plants under sterile conditions

Journal Article · Tue Jan 01 00:00:00 EST 1974 · Dokl. Biochem. (Engl. Transl.); (United States)

OSTI ID:6744303

Durmishidze, S V; Devdariani, T V; Kavtaradze, L K; Kvartskhava, L S

In this article the authors discuss the results of the oxidative conversion of BP to various individual compounds in plant roots and leaves. The experiments were conducted on 14-day alfalfa plants (Medicago sativa), ryegrass (Lolium multiflorum), chick-pea (Cicer arientinum), cucumbers (Cucumis sativus), pumpkin (Cucurbita), orchard grass (Dactylis glomerata), and vetch (Vicia faba), grown under sterile conditions on Knop's nutrient medium. Labeled 1,2-/sup 14/C-BP was synthesized in several steps using phthalic and 1,2-/sup 14/C-acetic anhydrides as the starting materials. The results of the experiments showed that the roots and leaves of various plants assimilate BP and subject it to profound chemical transformations. The conversion products are transported from the roots to the leaves and from the leaves to the roots. Low-molecular weight compounds, in particular, organic acids, provided most radioactive. The distribution of the radioactivity of the low-molecular weight substances among the plant organs depends on the site of the primary assimilation of 1,2-/sup 14/C-BP. In the case of assimilation of BP by the roots, the most radioactive are the low-molecular weight compounds of the root themselves, while in the case of assimilation of BP by the leaves, the most radioactive are the low-molecular weight compounds of the leaves. The same pattern is observed in the distribution of radioactivity among the organs of plants in the case of organic acids.

• Research Organization: Institute of Plant Biochemistry, Tbilisi (USSR)
• OSTI ID: 6744303
• Journal Information: Dokl. Biochem. (Engl. Transl.); (United States), Vol. 218; Other Information: Translated from Doklady Akademii Nauk SSR; 218: No.6, 1468-1471(Oct 1974)
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
59 BASIC BIOLOGICAL SCIENCES
BENZOPYRENE
METABOLISM
TISSUE DISTRIBUTION
ALFALFA
CARBON 14 COMPOUNDS
CUCUMBERS
GRASS
LEAVES
MOLECULAR WEIGHT
ORGANIC ACIDS
ROOTS
RYE
TRACER TECHNIQUES
VICIA
AROMATICS
BACTERIA
CEREALS
CONDENSED AROMATICS
DISTRIBUTION
FOOD
HYDROCARBONS
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LEGUMINOSAE
MICROORGANISMS
ORGANIC COMPOUNDS
PLANTS
RHIZOBIUM
VEGETABLES
560300* - Chemicals Metabolism & Toxicology
550501 - Metabolism- Tracer Techniques