Abstract：
:Cadmium was bioassayed to observe cytogenetic effects in the water hyacinth (Eichhornia crassipes). Plants were exposed for 96 hr to freshwater containing 0.01, 0.05, 0.10, 1.5, and 10 mg/liter of cadmium. Metal concentrations in tissues were determined by atomic absorption spectrophotometry. The highest level was found in roots, thus root-tip cells were used for cytogenetic studies; after 24 hr of exposure, micronuclei, c-mitotic effects, and pycnosis were detected and after 48 hr polyploidy was observed. A linear relationship between frequencies of micronuclei and cadmium concentrations was found: at 1.5, and 10 mg/liter micronuclei numbers were always the lowest. The inhibition of cell proliferation. shown by the low mitotic index, was proportional to the concentration and time of exposure. From the results presented in this paper it may be concluded that water hyacinth is a good sensor, due to its fast rate of metal accumulation, which allows an easy way to determine the presence of potential mutagenic compounds in water.
journal_name
Environ Resjournal_title
Environmental researchauthors
Rosas I,Carbajal ME,Gómez-Arroyo S,Belmont R,Villalobos-Pietrini Rdoi
10.1016/0013-9351(84)90037-9subject
Has Abstractpub_date
1984-04-01 00:00:00pages
386-95issue
2eissn
0013-9351issn
1096-0953pii
0013-9351(84)90037-9journal_volume
33pub_type
杂志文章abstract：:A cross-sectional study was carried out to determine the effect on health of exposure to different types of ventilation, taking indoor environmental measurements (IEMs) of major contaminants and aeroallergens into account. Three buildings ventilated with heating, ventilating, and air conditioning (HVAC), fan coil unit...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1006/enrs.1997.3764
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journal_title：Environmental research
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1006/enrs.1997.3704
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journal_title：Environmental research
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2018.03.005
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journal_title：Environmental research
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journal_title：Environmental research
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journal_title：Environmental research
pub_type： 杂志文章,meta分析
doi：10.1006/enrs.1998.3859
更新日期：1998-10-01 00:00:00
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pub_type： 杂志文章
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2004.07.010
更新日期：2005-03-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2013.08.012
更新日期：2013-10-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
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journal_title：Environmental research
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2016.01.003
更新日期：2016-04-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
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更新日期：2014-08-01 00:00:00
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journal_title：Environmental research
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更新日期：2020-05-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/0013-9351(83)90119-6
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journal_title：Environmental research
pub_type： 杂志文章
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journal_title：Environmental research
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更新日期：2014-11-01 00:00:00
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journal_title：Environmental research
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更新日期：2020-06-01 00:00:00
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journal_title：Environmental research
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journal_title：Environmental research
pub_type： 杂志文章
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pub_type： 杂志文章
doi：10.1016/j.envres.2016.04.014
更新日期：2016-07-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章,评审
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更新日期：2001-02-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2016.03.029
更新日期：2016-07-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.110256
更新日期：2021-01-01 00:00:00
