Publications by authors named "Livia Dorsch Rocha"

Article Synopsis
  • The study investigates the effects of humic acids extracted from landfill sludge on plant growth and metabolism, highlighting their potential as a nutrient source.
  • Humic acids exhibit high levels of carbon and nitrogen, which are beneficial for plant nutrition, and 2 mM concentration significantly enhances enzyme activity, particularly H-ATPase.
  • However, the research also notes concerning cytogenetic alterations and mutagenicity, suggesting potential risks associated with using landfill sludge in its raw form despite its nutrient benefits.
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Assessment of water resources requires interdisciplinary studies that include multiple ecosystem aspects. This study evaluated the water quality of Juara Lagoon (ES, Brazil) based on physical and chemical variables, cytogenetic responses in Allium cepa and phytoplankton dynamics. Three sampling sites were defined and water samples were collected during two sampling periods.

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Roots of mangrove trees have an important role in depurating water and sediments by retaining metals that may accumulate in different plant tissues, affecting physiological processes and anatomy. The present study aimed to evaluate adaptive changes in root of Rhizophora mangle in response to different levels of chemical elements (metals/metalloids) in interstitial water and sediments from four neotropical mangroves in Brazil. What sets this study apart from other studies is that we not only investigate adaptive modifications in R.

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Mangroves are dynamic environments under constant influence of anthropic contaminants. The correlation between environmental contamination levels and possible changes in the morphology of plants, evaluated by multivariate statistics helps to highlight matching between these variables. This study aimed to evaluate the uptake and translocation of metals and metalloids in roots and leaves as well as the changes induced in both anatomy and histochemistry of roots of Laguncularia racemosa inhabiting two estuaries of Espírito Santo (Brazil) with different pollution degrees.

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