A5030894765- Allelopathy and phytotoxic interactions
- Plant tissue culture and regeneration
- Growth and nutrition in plants
- Essential Oils and Antimicrobial Activity
- Phytochemistry Medicinal Plant Applications
- Weed Control and Herbicide Applications
- Seed Germination and Physiology
- Banana Cultivation and Research
- Chromosomal and Genetic Variations
- Agricultural and Food Sciences
- Pesticide and Herbicide Environmental Studies
- Plant and animal studies
- Psidium guajava Extracts and Applications
- Insect Pest Control Strategies
- Coffee research and impacts
- Plant Parasitism and Resistance
- Fungal Plant Pathogen Control
- Plant Diversity and Evolution
- Piperaceae Chemical and Biological Studies
- Carcinogens and Genotoxicity Assessment
- Biodiesel Production and Applications
- Plant biochemistry and biosynthesis
- Rural Development and Agriculture
- Plant Taxonomy and Phylogenetics
- Pesticide Exposure and Toxicity
Universidade Federal do Espírito Santo
2014-2024
Universidade do Vale do Paraíba
2023
Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde
2023
Terra
2023
Instituto de Tecnologia de Alimentos
2023
Altera (United States)
2023
Biolog (United States)
2023
Universidade Federal de Juiz de Fora
2023
Secretaria Municipal de Cultura
2023
Natura (Brazil)
2018
The essential oil of Plectranthus amboinicus and its chemotypes, carvacrol thymol, were evaluated on the germination root aerial growth Lactuca sativa Sorghum bicolor in acting cell cycle meristematic cells L. sativa. main component found by analysis gas chromatography–mass spectrometry chromatography flame ionization detection was (88.61% area). At a concentration 0.120% (w v–1), chemotypes retarded or inhibited decreased monocot dicot species used bioassays. In addition, all substances...
On November 2015, one of Brazil's most important watersheds was impacted by the mine waste from Fundão dam collapse in Mariana. The traveled over 600 km along Doce River before reaching sea, causing severe devastation its way. Here we assessed trace element concentrations and cytogenotoxic effects released waste. Water samples were collected ten days after disaster two sites non-impacted site. Sampling points located hundreds kilometers downstream collapsed dam. used for quantification to...
Jatropha curcas L. (Euphorbiaceae) is important for biofuel production and as a feed ingredient animal. However, the presence of phorbol esters in oil cake renders seeds toxic. The toxicity J. currently assessed by testing animals, leading to their death. identification toxic nontoxic improved varieties safe use byproducts avoid environmental toxicity. Hence, aim this study was propose short-term bioassay using plant model screen without need sacrifice any animals. evident germination, root...
The excessive use of herbicides has caused a series problems related to human health, environmental pollution, and an increase in the resistance plants commercial herbicides. As alternative, natural compounds their semisynthetic derivatives have been widely studied obtain environmentally friendly more effective than usual ones. In view these factors, aim this work was synthesize new molecules with herbicidal potential using thymol as starting material, phenol that pronounced phytotoxic effect. Novel
We investigated whether essential oil and aqueous ethanolic extracts from M. vittoriana leaves have phytotoxic effects on the germination initial development, cytogenotoxic cell cycle, of model plants. The were characterized used as treatments in phytotoxicity cytotoxicity tests. results indicated a reduction germinative parameters plant growth, with higher concentrations having most evident effects. cycle was also affected mitotic index presence chromosomal nuclear alterations. All showed...
Abstract The intensive application of agrochemicals in crops has negatively impacted the environment and other organisms. use naturally occurring compounds may be an alternative to mitigate these effects. Plants are secondary metabolite reservoirs present allelopathic activity, which is potentially interesting used bioherbicide formulations. In this context, work aimed evaluate phytotoxic cytotoxic effects essential oils extracted from leaves Sparattanthelium botocudorum tupiniquinorum...
The search for more environmental friendly herbicides, aiming at the control of agricultural pests, combinated with less harmfulness to human health and environment has grown. An alternative used by researchers is application products secondary plant metabolism, which are investigated due their potential bioactivities. Thus, species belonging Myrtaceae family in these studies, since this recognized having high biological activity. A genus Psidium cattleyanum, a medicinal effect its fruits...
Abstract There is a growing demand for herbicides that are more effective than conventional ones yet less harmful to ecosystems. Considering this, this study aimed synthesize esters from phenols and phenoxyacetic acid, using compounds with known phytotoxic potential as starting materials. Phenoxyacetic acid was first synthesized then utilized in the synthesis of seven through Steglich esterification, employing DCC ( N , '-dicyclohexylcarbodiimide) DMAP -dimethylpyridin-4-amine) presence...
Herein, the synthesis of nine novel glycerol-derived 4-alkyl-substituted 1,2,3-triazoles, using Cu I -catalyzed alkyne-azide cycloaddition reaction as key step, is reported.The triazoles were characterized by infrared and nuclear magnetic resonance (NMR 1 H 13 C) spectroscopy mass spectrometry.The prepared compounds evaluated with regard to their phytotoxic, antiproliferative, fungicidal activities.The activity was assessed on Colletotrichum gloeosporioides, causative agent papaya...
Due to rising concerns for environmental and human health, many toxic compounds, such as auxin-based herbicides, have been tested in relation their toxicity effect. Especially cyto- phytotoxic assays performed on a number monocot eudicot plant species. In these approaches the level of auxin is compared positive control – usually commercial compound with known effects chemical similarity target compound. However, compounds still lack an indication adequate control. Here, we evaluate cytotoxic...
Chromosome morphometry and nuclear DNA content are useful data for cytotaxonomy understanding the evolutionary history of different taxa. However, chromosome number is only karyotype aspect reported species Dorstenia so far. In this study, genome size arifolia (Lamarck, 1786), bonijesu (Carauta & C. Valente, 1983) elata (Hooker, 1840) was evaluated their accomplished, with aim verifying potential those parameters to understand issues. Mean 2C value ranged from = 3.49 picograms (pg) 5.47 pg...
The control of weeds in agriculture is mainly conducted with the use synthetic herbicides. However, environmental and human health concerns increased resistance to existing herbicides have pressure on researchers find new active ingredients for weed which present low toxicity non-target organisms, are environmentally safe, can be applied at concentrations. It herein described synthesis glycerol-fluorinated triazole derivatives evaluation their phytotoxic cytogenotoxic activities. Starting...
The present investigation aimed to develop inclusion complexes (ICs) from Psidium gaudichaudianum (GAU) essential oil (EO) and its major compound β-caryophyllene (β-CAR), evaluate their herbicidal (against Lolium multiflorum Bidens pilosa) cytogenotoxic (on Lactuca sativa) activities. ICs were obtained using 2-hydroxypropyl-β-cyclodextrin (HPβCD) they prepared avoid or reduce the volatility degradation of GAU EO β-CAR. showed a complexation efficiency 91.5 83.9% for β-CAR, respectively. IC...
The development of tissue cultured-based protocols applied to braúna, an endangeres species, would be though highly desirable. However, contamination-free explants are determinant for the success this technique, which might vulnerable toxicity disinfectants. Here, we aimed at establishing efficient protocol in vitro production axenic seedlings braúna and evaluate disinfectant agents Lactuca sativa model species. Experiments I II: Seeds were treated with sodium hypochlorite (NaOCl) fungicide...