Efeito de algunus matais pesados nas diferentes caracteristicas anatomicas do caule de Trapa natas L. do Lago Skadar (Montenegro)

Autores

DOI:

https://doi.org/10.14393/BJ-v37n0a2021-54073

Palavras-chave:

Anatomy, Heavy metals, Stem, Trapa natans L.

Resumo

O objetivo da pesquisa apresentada neste artigo foi analisar as características anatômicas do caule de Trapa natans em cinco locais do lago Skadar (L1 - baía de Milovića, L2 - afluência do rio Morača, L3 - Kamenik, L4 - Grmožur, L5 - Lipovik) com diferentes concentrações de Cu, Mn, Zn, Co e Pb, durante o período de verão do ano de 2012. Cortes transversais do caule foram feitos pelo procedimento criotécnico. Para todos os parâmetros anatômicos analisados, foram registrados os valores mínimos no local L2, com a presença de conteúdo máximo para todos os metais investigados. Por outro lado, no local L4 foi registrada a concentração mínima para todos os metais investigados. As plantas coletadas nesse local apresentam os maiores valores médios dos parâmetros anatômicos mais medidos. Os resultados da Análise Discriminante mostraram que plantas de locais diferentes podem ser claramente classificadas em três grupos, de acordo com as características anatômicas quantitativas dos caules, que correspondem ao teor de metais pesados. Foi encontrada uma correlação negativa estatisticamente significativa entre o conteúdo de Mn no caule e os valores de dois caracteres anatômicos (área da seção transversal do caule e conteúdo de Mn, r = - 0,88; p <0,05; número de camadas celulares hipodérmicas e conteúdo de Mn, r = - 0,90 ; p <0,05).

 

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Publicado

2021-12-29

Como Citar

PETROVIC, D., KRIVOKAPIĆ , S.., ANAČKOV, G. e LUKOVIĆ, J., 2021. Efeito de algunus matais pesados nas diferentes caracteristicas anatomicas do caule de Trapa natas L. do Lago Skadar (Montenegro). Bioscience Journal [online], vol. 37, pp. e37083. [Accessed21 novembro 2024]. DOI 10.14393/BJ-v37n0a2021-54073. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/54073.

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Ciências Biológicas