Publications by authors named "Priscila A Cortez"
Pollen grains have a relatively simple structure and microscopic size, with two or three cells surrounded by the protective sporoderm at maturity. The viability and efficiency of pollen transport from anther to stigma depends on pollen physiological properties, especially the relative water content of the vegetative cell. Pollen transport is a crucial fate for most angiosperms that depends on biotic pollinators and studies focusing on understanding the morpho-physiological properties of pollen grains are still scarce, especially to tropical open physiognomies as the Brazilian Cerrado.
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- Mangroves, particularly the species Avicennia schaueriana, show significant metal contamination from cadmium (Cd), resulting in metabolic, morphological, and cellular disturbances.
- Seedlings exposed to high levels of Cd experienced reduced leaf gas exchanges and died within 10 days, with the roots accumulating the most cadmium.
- The presence of cadmium led to structural changes in plant cells, including lignin deposition, chloroplast deformities, and general cytoplasm disorganization, posing risks to seedling survival and local biodiversity over time.
Morphology, ultrastructure, and element uptake in Calophyllum brasiliense Cambess. (Calophyllaceae J. Agardh) seedlings under cadmium exposure.
Environ Sci Pollut Res Int
June 2017
Cadmium (Cd) is a metal known for its genotoxicity and cytotoxicity, much concerned for its potential environmental and human health impacts. This study evaluates the toxic effect of Cd in Calophyllum brasiliense plants. The plants were cultivated for 30 days in full nutrient solution in order to adapt, and for 15 days in nutrient solution without Cd or with 4, 8, 16, and 32 μmol Cd L.
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