Citotoxicidade das águas do Rio do Peixe (São Paulo-Brasil), em células meristemáticas de raiz de Allium cepa L.

Costa, Alessandra Corveloni da

doi:10.14393/bj-v31n1a2015-15069

Cited by 7 publications

(6 citation statements)

References 14 publications

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“…The Chromosomal changes observed (Figure 3) were mainly colchicine, disorganized metaphases, multipolar anaphases and with loss of chromosomes. These results are similar to those observed by Costa, Domingues, Düsman, Almeida, and Vicentini (2015) who analyzed the water of Rio do Peixe (São Paulo), and by Maschio (2009) who examined the water from Municipal Dam of São José do Rio Preto (SP). In spite of the alterations observed, those studies did not evidence cytotoxic characteristics in samples, which corroborates with the present study.…”

Section: Toxicological Testssupporting

confidence: 88%

“…According to Costa et al (2015) these types of chromosomal alterations are due to changes in the formation process of spindle fibers, which prevent equatorial plate organizing and chromosomes to be separated correctly during anaphase. That indicates the presence of eugenic substances (Oliveira, Voltolini, & Barbério, 2011), influenced by toxic compounds that had contact with organisms such as heavy metals and agrochemical compounds (Maschio, 2009;Peron, Canesin, & Cardoso, 2009).…”

Section: Toxicological Testsmentioning

confidence: 99%

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Water quality for rural home supplying in the south of Brazil

Hollas

Pokrywiecki

Prado

et al. 2019

Acta Sci. Biol. Sci.

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Underground and surface water as a result of human activity are increasingly polluted. Mainly due to improper disposal of waste, discharge of effluents, among other actions that compromise the environment. The water analysis is necessary to determine and evaluate the situation of water supply to the population. This study evaluated the supply situation of three rural communities located in the south of Brazil, where the water is carried out through the abstraction of groundwater. Pastures, fields and remnants of native vegetation characterize the region. The water quality used to supply was what motivated the accomplishment of this work. The wells are unprotected in the middle of the pastures near to black cesspits and crops that use frequently agrochemicals. The water quality was characterized over one year by physicalchemical, microbiological and toxicological characteristics. The results were compared to water potability standards in Brazil. In order to ensure sanitary conditions for this population, environmental education actions were carried out given the importance of access the information. It follows that the resources analyzed need disinfection to ensure better and safer water supply.

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Section: Toxicological Testssupporting

confidence: 88%

Section: Toxicological Testsmentioning

confidence: 99%

Water quality for rural home supplying in the south of Brazil

Hollas

Pokrywiecki

Prado

et al. 2019

Acta Sci. Biol. Sci.

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“…The absence of A. cepa cytotoxicity, was also found in waters contaminated with petrochemical derivatives (leaked from a pipeline) (Leme and Marin-Morales, 2008) and effluents from refineries (Gupta and Ahmad, 2012). Similar results, using the same test system as the present study, were found on the surface waters of the Sava River (Croatia) (Radic et al, 2010), on the waters from Ribeirões Varginha River (Califórnia-Paraná-Brazil) and Tabatinga Juan Camilo Pires Salcedo Restrepo et al River (Mandaguari-Paraná-Brasil) (Ferreira et al, 2012), and on the waters from the Peixe River collected in the cities of Garça, Tupã, Flórida Paulista and Ouro Verde (São Paulo-Brazil) (Costa et al, 2015), which also received agricultural, industrial and urban effluents along their courses. Morphological changes and chromosomal alterations were also not observed when exposed to the waters of Trincheira´s River, similar to work by Ferreira et al (2012).…”

Section: Resultssupporting

confidence: 64%

Changes in physicochemical and toxicological parameters of waters of Trincheira's River caused by road construction

et al. 2019

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Road infrastructures can greatly affect natural areas. A trench and a roundabout were constructed in the city of Francisco Beltrão-Paraná-Brazil over a water body called Trincheira's River. The present study evaluated the quality of the waters of Trincheira’s River, in physicochemical and toxicological terms, at four points along its course, during and after the trench and the roundabout construction. The results of the physicochemical analysis showed changes in some parameters analyzed near the road infrastructure, in particular, oils and greases, biochemical oxygen demand and dissolved oxygen. The immobility/mortality test with Artemia salina L. micro shellfish showed that none of the water at the collection points of the river was toxic. The cytotoxicity test with the bioindicator Allium cepa L. revealed no cytotoxic effect in the sample collection done during the road construction. However, after the finalization of the trench and the roundabout construction, a statistically significant increase in the percentage of the mitotic index at the road construction point was noticed. Therefore, awareness and regulatory measures are necessary to oversee activities on water bodies’ shores and environs, to ensure a harmonious relationship between human activity and the ecosystem.

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“…It is a fact that the use and occupation of the land interfere with the quality of a water body, and this interference does not occur only in a localized way, but reaches the whole region that surrounds it (Oliveira et al, 2012;Costa, et al, 2015). Thus, proximity analyses are valuable to detect the use and occupation of the land around the sampling points and to assist in the evaluation of water quality.…”

Section: Introductionmentioning

confidence: 99%

Relationships between land use and water quality obtained for the evaluation of genotoxic effects in plant bioindicators

Sieklicki¹,

Bione²,

Filho³

et al. 2019

Rev. ambiente água

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Anthropic activities as well as land use and occupation are closely linked to water and soil quality. An alternative to assess their influence on water quality in water bodies is through biomonitoring using Allium cepa as a bioindicator organism. This technique allows the detection of cytogenetic abnormalities in Allium cepa root meristematic cells after contact with analyzed water samples. Thus, we evaluated the genotoxic potential of water samples from the Rio das Antas (Antas River) along the urban perimeter of the city of Irati, Paraná, Brazil. With the aid of GeoEye Satellite high-resolution fused orbital images, we searched for possible relationships between the use and occupation of land around this river. Biomonitoring was performed at three different sampling points. Statistical equality between the negative control and Point 1 and between Points 2 and 3 was obtained using Fisher's test and a Principal Coordinate Analysis (PCoA). The former presented a low frequency of abnormalities chromosomes and the latter presented larger averages. In addition, Point 1 had strong influence of tree vegetation. Points 2 and 3, demonstrated a strong influence of urbanized area, with significant degradation of permanent preservation areas (áreas de preservação permanente – (APP). The results showed remarkable anthropogenic interference to the ecosystem. Furthermore, this indicates importance of an APP watercourses functioning to preserve the quality of the water resources.

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Citotoxicidade das águas do Rio do Peixe (São Paulo-Brasil), em células meristemáticas de raiz de Allium cepa L.

Cited by 7 publications

References 14 publications

Water quality for rural home supplying in the south of Brazil

Water quality for rural home supplying in the south of Brazil

Changes in physicochemical and toxicological parameters of waters of Trincheira's River caused by road construction

Relationships between land use and water quality obtained for the evaluation of genotoxic effects in plant bioindicators

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