A5058769646- Plant tissue culture and regeneration
- Growth and nutrition in plants
- Plant Growth Enhancement Techniques
- Plant Stress Responses and Tolerance
- Natural Compound Pharmacology Studies
- Seed Germination and Physiology
- Plant nutrient uptake and metabolism
- Natural product bioactivities and synthesis
- Photosynthetic Processes and Mechanisms
- Crop Yield and Soil Fertility
- Leaf Properties and Growth Measurement
- Nanocomposite Films for Food Packaging
- Seedling growth and survival studies
- Pineapple and bromelain studies
- Nematode management and characterization studies
- Bioactive Compounds and Antitumor Agents
- Agricultural and Food Sciences
- Constructed Wetlands for Wastewater Treatment
- Phytochemistry Medicinal Plant Applications
- Agricultural Science and Fertilization
- Plant Physiology and Cultivation Studies
- Food Quality and Safety Studies
- Plant Micronutrient Interactions and Effects
- Plant Gene Expression Analysis
- Energy, Environment, Economic Growth
Universidade Federal de Alfenas
2014-2023
Universidade Federal de Viçosa
2017
Universidade Estadual de Campinas (UNICAMP)
2011-2014
Research has shown that chitosan induces plant stress tolerance and protection, but few studies have explored chemical modifications of their effects on plants under water stress. Chitosan its derivatives were applied (isolated or in mixture) to maize hybrids sensitive deficit greenhouse conditions through foliar spraying at the pre-flowering stage. After application, was induced for 15 days. Analyses leaves biochemical gas exchange ear leaf performed first fifteenth days period. Production...
It is a fact that the regions cultivate most maize crop do not have fully adequate technologies to measure productivity losses caused by irregularities in water availability. The objective of this study was evaluate physiological characteristics hybrids tolerant (DKB 390) and sensitive (BRS 1030) drought, at V5 growth stage under restriction, order understand mechanisms involved induction tolerance drought chitosan contrasting genotypes. Plants were cultivated pots greenhouse, 100 ppm...
The present study describes for the first time antigenotoxic and antioxidant properties of Stryphnodendron adstringens (Mart.) Coville, Fabaceae ("barbatimão") leaves. aqueous (AEB), water fraction (WFB) ethanolic (EEB) extracts leaves were obtained they presented high content phenolic compounds, flavonoids proanthocyanidins. WFB EEB inhibited genotoxicity induced by cyclophosphamide. DNA lesion formation both decreased significantly (p<0.05) micronucleus formation. All also showed DPPH...
Nitrate reductase (NR) activity is necessary for the synthesis of nitric oxide (NO), a key signaling molecule in plants. Here, we investigated effect NR deficiency on NO production and phenylpropanoid metabolism Arabidopsis thaliana leaves. HPLC–mass spectrometry analysis showed that double mutant (nia1 nia2) deficient sinapoylmalate (SM), main end-product wild-type leaves, resulting accumulation its precursor sinapoylglucose (SG). While real-time PCR revealed no significant difference at...
Garcinia brasiliensis, popularly known as Bacupari, is native to the Amazon and commonly used in folk medicine for its therapeutic properties. This plant rich bioactive compounds like benzophenones. However, there are no works about vitro establishment achievement of secondary metabolites this plant. Thus, aim work was determine growth curve perform biochemical phytochemical analyses calli obtained from procambium segments Bacupari. The followed a sigmoidal pattern, with four distinct phases...
The present study aimed to determine seasonal influences on the physiological characteristics of G. brasiliensis that are associated with production secondary metabolites, as well yield and composition leaf essential oil (EO). We evaluated leaves six-year-old plants at four cardinal points in middle third a canopy replicates during May, August, November, February. There were assessed photosynthesis rate, total phenolic flavonoid contents, phenylalanine (PAL) tyrosine (TAL) ammonia-lyase...
The aim of this work was to evaluate the effect Salicylic acid, 2,4-D and 2-iP on production total phenolic flavonoids as well in levels fukugetin 7-epiclusianone callus Garcinia brasiliensis zygotic embryos. For this, Bacupari were exposed different concentrations (0.0; 0.1; 1; 10; 100 µM) acid (SA) presence or absence 72 μM 28.73 2,4-D. highest concentration occurred treatment with SA subcultured 2-iP, 10 these regulators. Concerning flavonoids, supplementation without sufficient for...
This study aimed to evaluate the effect of putrescine priming on initial growth, chlorophyll fluorescence, primary metabolites accumulation, and antioxidant enzyme activities in two maize hybrids with contrasting drought tolerances. Seeds Zea mays L. DKB 390 (drought tolerant) BRS 1030 sensitive) were primed (10 or 100 µM). Paper rolls moistened distilled water mannitol (-0.6 MPa) maintened at 30°C for 7 d. The growth parameters higher hybrid than hybrid. Putrescine µM) promoted root levels...
In this study was evaluated the influence of glutamine supplementation on endogenous content amino acids, proteins, total phenolics, flavonoids and proanthocyanidins in Bacupari callus. The explants were inoculated MS medium, with half concentration nitrogen salts (MS½) nitrogen-free MS, supplemented (5, 10, 30 60mM) named as Gln5, Gln10, Gln30 Gln60. Amino acids proteins analyzed after 20, 80 140 days secondary metabolites 140th day. There no difference 20th On 80th day treatments MS½...
Bowdichia virgilioides Kunth is a medium size tree used in folk medicine and furniture manufacturing which makes it target of extractive processes. The aim this work was to evaluate the endogenous content polyamines, amino acids, sugars seedlings that presented or not development spontaneously differentiated vegetative propagules their roots. An average thirty percent vitro growing plants cultivated MS basal without growth regulators differentiation propagules. It noted units presents...
The number of debates on sustainability and the emission gases (GHG), that potentiate greenhouse effect, have grown in recent years, mainly regarding structural changes organizational dynamics society. Particularly Brazil, which has an extensive territorial area native vegetation, is responsible for harmful socio-environmental effects both externally internally to country. Thereby, this study aimed characterize GHG Brazil identify sustainable factors influence emissions how these correlate...
Ornamental pineapple is a hardy plant with significant landscaping value. Tissue culture of plants viable for producing high phytosanitary quality. However, one the difficulties this cultivar acclimatization process, which slow and can cause losses. The objective present study was to verify potential inoculation diazotrophic bacteria in vitro ex vivo growth ornamental pineapple. A group bacterial strains selected at Universidade José do Rosário Vellano (UNIFENAS) prioritized study,...
Bowdichia virgilioides Kunth is a tree species native to the Brazilian Cerrado that has been listed as an endangered due its overexploitation in last decades. Given slow and difficult propagation natural environments, plant nurseries appears interesting strategy preserve this species. Therefore, study we employed wide range of temperatures (i.e. from -25°C -196°C) store seeds B. short-term, evaluated efficiency by assessing seed germination rate, speed index, time synchrony, well seedling...