A5007988147- Aluminum toxicity and tolerance in plants and animals
- Fish biology, ecology, and behavior
- Fish Biology and Ecology Studies
- Plant Micronutrient Interactions and Effects
- Silicon Effects in Agriculture
- Identification and Quantification in Food
- Genetic diversity and population structure
- Crop Yield and Soil Fertility
- Cassava research and cyanide
- Coastal wetland ecosystem dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Plant Taxonomy and Phylogenetics
- Magnetic and Electromagnetic Effects
- Seed Germination and Physiology
- Freshwater macroinvertebrate diversity and ecology
- Soil Management and Crop Yield
- Aquaculture Nutrition and Growth
Universidade Estadual de Maringá
2011-2019
Universidade Federal de Goiás
2010-2011
European Union of Medical Specialists
2004-2008
A.M
The genetic divergence among invasive and native populations of Plagioscion squamosissimus from four Neotropical hydrographic basins was assessed using the hypervariable domain mitochondrial DNA (mtDNA) control region. is to neighbouring Parnaíba Amazon Rivers, latter includes Araguaia–Tocantins drainage, but it in other due introductions. mtDNA nucleotide polymorphism supported hypothesis that constitute same species are separated into two independent evolutionary lineages. Absence observed...
Fish species of the Zungaro genus (Siluriformes, Pimelodidae) are amongst largest migratory fish in Latin America and have considerable economic importance for commercial fishing Brazil.However, natural populations this large catfish experiencing a severe decline.There significant taxonomical inconsistencies fish.Two geographically separated were initially described, one endemic Amazon another Paraná-Paraguay River basins.A taxonomic review had recently proposed that there is only Brazil,...
Invasive populations of macrophytes are widely distributed and have been successfully introduced established in freshwater habitats. Hydrilla verticillata was first recorded 2005 the Upper Paraná River floodplain 2007 at Itaipu Reservoir (Brazil-Paraguay border, ca. 300 km downstream from its record). However, genetic variability within different sites South America is unknown. We used nucleotide sequences corresponding to trnL-trnF fragment cpDNA genetically characterize H. ecosystems...
The purpose of this study was to investigate aluminum tolerance in maize. For purpose, a nutrient solution used with the tolerant (L922) and sensitive (Ast214) homozygous parental lines, segregating generation F2 F2:3 lines derived thereof. Seeds were germinated on paper seedlings transferred containing 4.5 mg L-1 aluminum. In experiments involving groups rows plants intercropped eight completely randomized block design. Results demonstrated bimodal distribution relative frequencies,...
Abstract Genetic and phylogenetic relationships among seven piranha species of the genera Serrasalmus Pygocentrus from Paraná-Paraguay, São Francisco Tocantins River basins were evaluated in present study by partial sequences two mitochondrial genes, Cytochrome b c Oxidase I. Phylogenetic analysis Maximum-Likelihood Bayesian inference performed. Results indicated, general, greater genetic similarity between (P. nattereri P. piraya), rhombeus S. marginatus maculatus, brandtii eigenmanni....
Characidae is the largest and more diversified family from Characiformes presents several classification problems, with genera currently allocated as incertae sedis, such genus Hemigrammus. The upper Paraná river floodplain an environment high fish diversity. There at least one species of Hemigrammus, however there are divergences among some authors about number identification this genus. Therefore goal study was to characterize, using a molecular approach, individuals Hemigrammus compare...
Soluble aluminum in acid soils can induce severe phytotoxic effects, leading to a decrease both the mitotic activity of roots and yield cultivated plants. Intraspecific variability for tolerance has been described many species. However, results from studies on transmission this trait are conflicting because they indicate monogenic quantitative inheritance, prevalently with expression more than one locus. The aim research was evaluate inheritance family maize (Zea mays L.) consisting...
Lonchocarpus cultratus (Vell.) A.M.G. Azevedo and H.C. Lima is an important plant species in areas of natural reforesting South Southeastern Brazil, including riparian areas. This arboreous seems to reproduce by seeds undisturbed forests. In regenerating forests, however, L. has been observed mostly as patches aggregates, consisting highly similar plants, resembling clones. Sprouting from root buds had previously a forest affected fire. the present study, RAPD polymorphism revealed high...
Colossoma macropomum (tambaqui) is a widely grown species in fish farms troughout Brazil, and already showing genetic variability loss some stocks. This study aimed at testing the crossamplification this based on 52 microsatellite loci originally developed for other species. Tambaqui individuals were collected Goiânia, DNA amplification was extracted from muscle tissue. The cross-amplification tests performed changing temperature of each locus, searching standardization. Among tested loci,...
Acid soils contain aluminum that hinders the development of nontolerant plants due to a decrease in roots mitotic activity. This work determined changes caused by protein and carbohydrate total contents apex maize seminal roots. Seedlings from tolerant hybrids were grown nutrient solution containing four concentrations. Although there was no interaction between genotypes concentrations, levels different effects on contents. In presence aluminum, induced both, even though degree response...
In acid soils, aluminum constraints productivity of nonadapted plants. Aluminum most evident phytotoxic effect is the decrease in root growth. Joint use liming and tolerant genotypes would make good soils. However, there are conflicting results from studies on tolerance inheritance maize ( Zea mays L.). The aim this research was to estimate genetic parameters a family nontolerant inbred lines their derived generations F 1 2 backcrosses. Net length seminal roots seedlings, developed nutrient...
Os cerrados ocupam quase um quarto do territorio brasileiro e tem solos acidos com alta saturacao de aluminio, que reduz a produtividade plantas nao adaptadas, pois limita o crescimento das raizes. O uso genotipos tolerantes ao em combinacao calagem, uma estrategia promissora para exploracao agricola dos cerrados. conhecimento mecanismos heranca da tolerância aluminio contribuira obtencao produtivos. objetivo deste trabalho foi determinar se ha efeito materno na resposta cruzamentos...