Differntial cadmium accumulation and phytotoxicity in sixteen tobacco cultivars

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6996013

Clarke, B B; Brennan, E ^[1]

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1. Rutgers Univ. New Brunswick, NJ (US)

Contrary to most agronomic plants, tobacco accumulates a greater proportion of cadmium (Cd) in its foliage than in any other plant part when it is exposed to Cd-contaminated soil or sand. Because tobacco leaves are marketed as a commercial product, this pattern of partitioning is highly undesirable from the standpoint of human toxicity. Recognizing that Cd uptake and translocation is under genetic control, the authors evaluated the distribution of cadmium in 16 tobacco cultivars to determine whether a genotype could be selected that minimizes the accumulation of Cd in the leaf. In order to assess the impact of low levels of cadmium that might originate from superphosphate, fertilizers, sludge, or contaminated rain on plant growth, several growth parameters of Cd-treated and untreated tobacco plants were compared. The results of these studies are presented.

• OSTI ID: 6996013
• Report Number(s): CONF-880679--
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
550400 -- Genetics
560300 -- Chemicals Metabolism & Toxicology
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL ACCUMULATION
CADMIUM
CONTAMINATION
ELEMENTS
FERTILIZERS
GENE REGULATION
GENOTYPE
GROWTH
LAND POLLUTION
METALS
PLANT GROWTH
POLLUTION
POLLUTION SOURCES
SOILS
TOBACCO
TOXICITY