A5004059740- Allelopathy and phytotoxic interactions
- Essential Oils and Antimicrobial Activity
- Phytochemistry Medicinal Plant Applications
- Psidium guajava Extracts and Applications
- Environmental Sustainability and Education
- Piperaceae Chemical and Biological Studies
- Pesticide and Herbicide Environmental Studies
- Weed Control and Herbicide Applications
- Plant tissue culture and regeneration
- Chromosomal and Genetic Variations
- Insect Pest Control Strategies
- Adolescent Sexual and Reproductive Health
- Natural Compound Pharmacology Studies
- Pesticide Exposure and Toxicity
- Advances in Cucurbitaceae Research
- Agricultural and Food Sciences
- Phytochemicals and Antioxidant Activities
- Plant biochemistry and biosynthesis
- Science and Education Research
- Carcinogens and Genotoxicity Assessment
- Plant and animal studies
- Free Radicals and Antioxidants
- Youth, Drugs, and Violence
Universidade Federal do Espírito Santo
2019-2024
Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde
2023
Universidade do Vale do Paraíba
2023
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...
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...
Natural products with biological activity, such as essential oils, can be used in the search for and development of ecological herbicides an alternative to reduce damage caused by synthetic herbicides. This work aimed determine chemical composition phytotoxic properties at concentrations 3000, 1500, 750, 375 187.5 µg/mL, four cultivars Psidium guajava (guava) evaluated on germination root growth plant models Lactuca sativa Sorghum bicolor, well L. cell cycle. Exposure oils reduced bioassays,...
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 search for bioherbicides has been encouraged, and plants used in food or with bioactivity have studied. Therefore, this article aimed to investigate the bioherbicidal potential of essential oils from Psidium cauliflorum P. acidum through a plant toxicity bioassay using Lactuca sativa Sorghum bicolor. seeds were treated both species, along control groups distilled water, dichloromethane, glyphosate. Germination percentage (GP), germination speed index (GSI), root growth (RG), shoot length...
Diferenças cromossômicas foram identificadas em Psidium cattleyanum, com organismos diplóides (2n=22 cromossomos) até citótipos que não são múltiplos do número básico da família (x=11), como 2n=46, 48, 58, 82. Assim, indica a espécie seja um autopoliploide capaz de aumentar produção metabólitos secundários quando comparados as plantas-mãe diploides. Além dos fatores genéticos, os ambientais também podem influenciar no rendimento e composição secundários, principalmente óleos essenciais....
ABSTRACT The genus Psidium is recognized for its economic value and the species that produce essential oils with notable biological activities. This study investigated characteristics of oil from leaves myrtoides cattleyanum under different drying temperatures. We aimed to understand how temperatures affect yield composition oil, as well activity. obtained P. dried in an oven at 40°C showed highest yields (0.86% 1.07%, respectively). β-caryophyllene was major compound all cattleyanum, except...
Abstract Polyploidy, a numerical alteration of the karyotype, is one most important mechanisms in plant speciation and diversification, but could also be detected among populations, cytotypes. For example, Psidium cattleyanum, polyploid complex, has chromosome numbers ranging from 2n=3x=33 to 2n=12x=132. Polyploidization causes an increase DNA content, both modifications may cause growth, physiology, epigenetics. Based on this possibility, here we aim verify influence polyploidization...
O uso generalizado de herbicidas na agricultura moderna visa aumentar a produtividade e reduzir custos.No entanto, tradicionais estão se tornando menos eficazes contra plantas invasoras.Moléculas sintéticas origem natural, com propriedades herbicidas, destacando por sua seletividade,
A composição química dos óleos essenciais fornece informações sobre seus efeitos fitotóxicos, e dentre os constituintes químicos mais abundantes encontrados nos de P. myrtoides, tem-se sesquiterpenos, pertencentes a classe terpenos.Porém, esses compostos podem variar acordo com as condições aos quais são expostos, dessa forma, objetivou-se avaliar o efeito fitotóxico da emulsão do óleo essencial extraído folhas myrtoides submetidas diferentes temperaturas secagem, através bioensaios Lactuca...
de inclusão (CI) do óleo essencial (OE) Psidium cattleyanum (CAT) em 2-hidroxipropil-β-ciclodextrina (HPβCD), previamente preparado e caracterizado, na avaliação da atividade larvicida Aedes aegypti.Assim, tanto o OE quando CI foram aplicados