A5075021645- Plant responses to elevated CO2
- Fern and Epiphyte Biology
- Plant and animal studies
- Plant Diversity and Evolution
- Plant Stress Responses and Tolerance
- Plant Parasitism and Resistance
- Plant Micronutrient Interactions and Effects
- Plant tissue culture and regeneration
- Environmental and biological studies
- Growth and nutrition in plants
- Weed Control and Herbicide Applications
- Botanical Research and Applications
- Pesticide and Herbicide Environmental Studies
- Heavy metals in environment
- Plant responses to water stress
- Soil Management and Crop Yield
- Leaf Properties and Growth Measurement
- Seed Germination and Physiology
- Atmospheric chemistry and aerosols
- Insect Pest Control Strategies
- Aeolian processes and effects
- Arsenic contamination and mitigation
- Pineapple and bromelain studies
- Aluminum toxicity and tolerance in plants and animals
- Iron oxide chemistry and applications
Universidade Federal de Viçosa
2016-2025
Instituto Nacional do Câncer
2019
Specimens of Pistia stratiotes were subjected to five concentrations arsenic (As) for seven days. Growth, As absorption, malondialdehyde (MDA) content, photosynthetic pigments, enzymatic activities, amino acids content and anatomical changes assessed. Plant accumulation increased with increasing metalloid in the solution, while growth rate pigment decreased. The MDA increased, indicating oxidative stress. Enzymatic activity at lower doses As, subsequently declining higher concentrations....
Abstract The use of aerial spraying herbicide in large areas is common Brazil, especially glyphosate, which the most extensively used worldwide. A portion can reach non-target species, resulting damage these species and causing severe implications for local biodiversity. Thus, this study aimed to evaluate responses leaves Handroanthus chrysotricus (Mart. Ex DC) Mattos (Bignoniaceae) Garcinia gardneriana (Planch. & Triana) Zappi (Clusiaceae) glyphosate its potential biomonitoring purposes,...
Experiments were conducted in order to characterize the injuries on leaf structure and micromorphology of G. americana evaluate degree susceptibility this species simulated acid rain. Plants exposed rain (pH 3.0) for ten consecutive days. Control plants submitted only distilled water 6.0). Leaf tissue was sampled fixed light scanning electron microscopy. Necrotic interveinal spots blade occurred. Epidermis mesophyll cells collapse, hypertrophy spongy parenchyma cells, accumulation phenolic...
The objective of this study was to evaluate the effects toxic levels aluminum (Al) on growth and external morphology root tips in two maize genotypes with differential Al tolerance. UFVM-100 (Al-sensitive) UFVM-200 (Al-tolerant) were treated 0 50 mM a 0.5 CaCl2 solution at pH 4.5; elongation, content evaluated. Chemical analysis, hematoxylin staining energy dispersive X-ray spectrometry (EDS) showed greater accumulation genotype. inhibition elongation genotype, however, much stronger than...
Acid rain has been detected in natural protected areas of the Atlantic Rainforest Brazil. We evaluated effects simulated acid on leaf blade surface Joannesia princeps, aiming to assess species potential as biosensor acidic precipitation. Seedlings were subjected prepared with pH 4.5 H2SO4-acidulated water and, control treatment, 6.0 deionized water. Severe microstructural damage was youngest leaves, consisting wilting epidermal common cells, which resulted alteration relief due formation...
Paspalum urvillei and Setaria parviflora are two plant species naturally adapted to iron-rich environments such as around iron mines wastes. The aim of our work was characterize how these cope with extreme conditions by comparing them related model species, Oryza sativa viridis, that appeared be much less tolerant Fe excess. Both were able limit the amount accumulated within roots shoots, compared species. Perls/DAB staining in root cross sections indicated responded through build-up plaque...