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- W182711410 abstract "The toxicity of heavy metals in the environment depends on a number of physicochemical and biological factors. The complexity of these relationships has encouraged the use of bioassays for direct measurement of the [table: see text] impact of toxic metals on selected test species. Fish and daphnid bioassays are well accepted by the scientific and regulatory communities, but their length (48 h or more) and the considerable time and effort needed to culture the test organisms make their application to sample screening problematical. Microbial and biochemical assays based on the inhibition of bioluminescence, enzyme activity, enzyme biosynthesis, growth, respiration, and heat production are typically faster and less expensive than the traditional and fish bioassays. Some of these tests approach or equal the sensitivity of daphnids to heavy metals. Since the soil acts as a sink for airborne and waste-applied metals, the uptake of metals by plants and the associated toxic impacts are important. Growth inhibition, enzyme induction, and production of stress proteins have been considered as toxicity end points. Enzymatic tests have been developed that are specific for heavy metal toxicity. Such tests can facilitate toxicity reduction evaluations. Detection of individual metals in the environment may eventually be possible using biosensors consisting of genetically engineered microorganisms. Direct solid-phase tests for soil, sediment, or sludge toxicity, using bacterial bioluminescence or enzyme activity as end points, have been developed. Such tests may complement traditional solid-phase toxicity tests using nematodes or earthworms as indicator organisms. Based on the work reviewed, we draw the following conclusions: 1. The Microtox assay is sensitive to mercury but would fail to detect the toxicity of certain metals, such as cadmium. Among all the microbial assays reviewed, the bioassay based on growth inhibition of the alga Selenastrum capricornutum appears to give the lowest EC50s, similar to those seen for daphnid bioassays. 2. Biosensors, using genetically engineered microorganisms, offer an elegant means of detecting the presence of specific heavy metals in environmental samples. However, at the present time, they are not designed for assessing heavy metal toxicity. 3. The use of bioassays specific for heavy metal toxicity can be useful for directly assessing the bioavailability of these toxicants in environmental samples, thus avoiding the need for fractionation.+4" @default.
- W182711410 created "2016-06-24" @default.
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- W182711410 date "1995-01-01" @default.
- W182711410 modified "2023-10-14" @default.
- W182711410 title "Heavy Metal Toxicity Testing in Environmental Samples" @default.
- W182711410 cites W1460773226 @default.
- W182711410 cites W151198397 @default.
- W182711410 cites W1552070679 @default.
- W182711410 cites W1574255548 @default.
- W182711410 cites W1581542556 @default.
- W182711410 cites W1674169609 @default.
- W182711410 cites W1715183534 @default.
- W182711410 cites W1733337178 @default.
- W182711410 cites W1799384508 @default.
- W182711410 cites W1869278765 @default.
- W182711410 cites W1949287816 @default.
- W182711410 cites W1964389055 @default.
- W182711410 cites W1967358926 @default.
- W182711410 cites W1967794150 @default.
- W182711410 cites W1971499548 @default.
- W182711410 cites W1971886949 @default.
- W182711410 cites W1973118041 @default.
- W182711410 cites W1977866181 @default.
- W182711410 cites W1980511646 @default.
- W182711410 cites W1980551228 @default.
- W182711410 cites W1980675007 @default.
- W182711410 cites W1982106356 @default.
- W182711410 cites W1982399036 @default.
- W182711410 cites W1984080208 @default.
- W182711410 cites W1986811853 @default.
- W182711410 cites W1988859894 @default.
- W182711410 cites W1990223183 @default.
- W182711410 cites W1990347416 @default.
- W182711410 cites W1991231548 @default.
- W182711410 cites W1993850667 @default.
- W182711410 cites W1994042966 @default.
- W182711410 cites W1995393415 @default.
- W182711410 cites W1996482931 @default.
- W182711410 cites W1999458444 @default.
- W182711410 cites W2000585022 @default.
- W182711410 cites W2001394895 @default.
- W182711410 cites W2001612407 @default.
- W182711410 cites W2002177917 @default.
- W182711410 cites W2002905689 @default.
- W182711410 cites W2002954132 @default.
- W182711410 cites W2003639697 @default.
- W182711410 cites W2004969637 @default.
- W182711410 cites W2005620240 @default.
- W182711410 cites W2009761649 @default.
- W182711410 cites W2012073050 @default.
- W182711410 cites W2012767460 @default.
- W182711410 cites W2014766140 @default.
- W182711410 cites W2018666462 @default.
- W182711410 cites W2019916704 @default.
- W182711410 cites W2022841101 @default.
- W182711410 cites W2024322765 @default.
- W182711410 cites W2024967472 @default.
- W182711410 cites W2026120923 @default.
- W182711410 cites W2028420848 @default.
- W182711410 cites W2031117436 @default.
- W182711410 cites W2034344061 @default.
- W182711410 cites W2037276937 @default.
- W182711410 cites W2038095844 @default.
- W182711410 cites W2041002611 @default.
- W182711410 cites W2041148082 @default.
- W182711410 cites W2042988768 @default.
- W182711410 cites W2044484461 @default.
- W182711410 cites W2044964107 @default.
- W182711410 cites W2047217867 @default.
- W182711410 cites W2047699616 @default.
- W182711410 cites W2047906980 @default.
- W182711410 cites W2050699622 @default.
- W182711410 cites W2052478556 @default.
- W182711410 cites W2052924273 @default.
- W182711410 cites W2056987375 @default.
- W182711410 cites W2057068001 @default.
- W182711410 cites W2057489611 @default.
- W182711410 cites W2058728227 @default.
- W182711410 cites W2059566720 @default.
- W182711410 cites W2060222395 @default.
- W182711410 cites W2060492844 @default.
- W182711410 cites W2060544783 @default.
- W182711410 cites W2061402529 @default.
- W182711410 cites W2064481970 @default.
- W182711410 cites W2067744555 @default.
- W182711410 cites W2068786539 @default.
- W182711410 cites W2069233971 @default.
- W182711410 cites W2072694891 @default.
- W182711410 cites W2074088432 @default.
- W182711410 cites W2074364474 @default.
- W182711410 cites W2075005199 @default.
- W182711410 cites W2079184250 @default.
- W182711410 cites W2082059535 @default.
- W182711410 cites W2082263331 @default.