Relationship between uptake of mercury vapor by mushrooms and its catalase activity

Journal Article · Tue Dec 01 04:00:00 EST 1981 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF01611101· OSTI ID:5761291

Ogata, M; Kenmotsu, K; Hirota, N; Naito, M

The uptake of mercury vapor by mushrooms (Shiitake) artifically grown on an oak tree and the uptake in vitro by catalase extracts prepared from mushroom Hay Bacillus and spinach are reported. Mushrooms were exposed to 1.4 mg/Hg/cu m for 11 days. Measurement of total mercury was as previously described (Ogata et al. 1978, 1979). Levels in mushrooms ranged from 0.4 +/- 0.1 ..mu..g/g at 0.5 days to 4.6 +/- 0.2 ..mu..g/g at 10.5 days and steady-state thereafter. In in vitro studies Hy uptake by mushroom catalase extract was estimated by the perborate method. Uptake was found to parallel catalase activity and was inhibited by potassium cyanide, sodium azide, and 3-amino-1,2,4-triazole. Similar results were obtained with Hay Bacillus and spinach catalase extracts. Results suggest that the level of mercury in the mushroom can be used as an indicator of mercury pollution in the environment. It is also suggested that catalase has an important role in uptake of mercury vapor in the plant. 2 tables (JMT)

• Research Organization: Okayama Univ. Medical School, Okayama City, Japan
• OSTI ID: 5761291
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Journal Name: Bull. Environ. Contam. Toxicol.; (United States) Vol. 27:6; ISSN BECTA
• Country of Publication: United States
• Language: English

Related Subjects

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Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BACILLUS
BACTERIA
BIOLOGICAL ACCUMULATION
BIOLOGICAL EFFECTS
CARBOXYLIC ACIDS
CATALASE
CHEMICAL ANALYSIS
ELEMENTS
ENZYME ACTIVITY
ENZYMES
FLUIDS
FOOD
FUNGI
GASES
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
IN VITRO
IN VIVO
MERCURY
METALS
MICROORGANISMS
MUSHROOMS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDOREDUCTASES
PEROXIDASES
PLANTS
PORPHYRINS
QUANTITATIVE CHEMICAL ANALYSIS
SPINACH
UPTAKE
VAPORS
VEGETABLES