Análise fitoquímica e potencial alelopático das cascas de Pouteria ramiflora na germinação de alface

Oliveira, Ademir Km; Pereira, Kelly Cl; Muller, Jéssica Ai; Matias, Rosemary

doi:10.1590/s0102-05362014000100007

Cited by 28 publications

(32 citation statements)

References 13 publications

(3 reference statements)

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“…Similar results were obtained in studies of aqueous extract of Artemisia annua L. with lettuce seeds, which showed that seed germination was affected and took longer (MAGIERO et al, 2009). However, Oliveira et al (2014), working with ethanolic and aqueous extracts of leaves Pouteria ramiflora (Mart.) Radlk with the seeds of lettuce and tomato, observed no decrease in germination time at any of the tested concentrations.…”

Section: Resultsmentioning

confidence: 99%

Allelopathic potential and phytochemistry of cambarazinho (Vochysia haenkeana (Spreng.) Mart.) leaves in the germination and development of lettuce and tomato

Rizzi¹,

Pereira²,

Abreu³

et al. 2016

Biosci. J.

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ABSTRACT:The interference of chemicals in the germination and growth of plant species, known as allelopathy, is one of the main ways of eliminating competition for resources through the release of allelochemicals. The aim of this study was to determine the presence of secondary metabolites in extracts prepared from leaves of Vochysia haenkeana, evaluating their allelopathic action on the germination and seedling growth of lettuce and tomato. The plant material was collected in the Taboco region, Mato Grosso do Sul state, and after drying and grinding, underwent extraction with the use of water and ethanol, concentration of 200.0 g L -1 . The method using an ultrasound bath was followed by maceration for 24 h in the refrigerator without the presence of light. The extracts were subjected to classical phytochemical analysis and the determination of pH, electrical conductivity, soluble solids and allelopathic tests. For bioassays, the extracts were diluted at concentrations of 25.0, 50.0, 100.0 and 150.0 g L -1 and the experimental design was completely randomized. There was a reduction in the percentage and speed of germination at concentrations of 25.0 and 50.0 g L -1 in both extracts. The seedling growth was also adversely affected, both in the germination chamber and in the greenhouse. These results are probably associated with the presence of different allelochemicals in the extracts, such as phenolic compounds and flavonoids, indicating that this species presented allelopathic action.

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Section: Resultsmentioning

confidence: 99%

Allelopathic potential and phytochemistry of cambarazinho (Vochysia haenkeana (Spreng.) Mart.) leaves in the germination and development of lettuce and tomato

Rizzi¹,

Pereira²,

Abreu³

et al. 2016

Biosci. J.

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“…The anthraquinones were not recorded for other species of the genus and only recently for the P. ramiflora bark, also collected in the Cerrado region of Mato Grosso do Sul (Oliveira et al, 2014). The same authors showed in the extracts analyzed the presence of phenolic compounds, tannins, coumarins, reducing sugars, and saponins besides the free antraquinones, in the inner and outer shells of the aqueous and ethanolic extract, as well as steroids and triterpenes only in the ethanolic extract.…”

Section: Phytochemical Analysismentioning

confidence: 93%

“…Among the species that present bioactivity there are the tree species Pouteria ramiflora, found in areas of the Brazilian Cerrado and known as curriola, live-in, or deer-fruit, used in folk medicine for its anti-inflammatory and vermifuge properties (Condessa, 2013), besides having allelopathic action (Oliveira et al, 2014).…”

Section: Palavras-chavementioning

confidence: 99%

Phytochemical analysis and fungicide potential of Pouteria ramiflora against Lasiodiplodia theobromae

et al. 2017

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The use of plant extracts can be an alternative to reduce the use of pesticides, to control diseases and pests that affect agricultural production. The aim of this study was the chemical characterization of the extract and fractions of Pouteria ramiflora leaves and to determine its fungistatic potential on Lasiodiplodia theobromae. The ethanolic extract of dried and crushed leaves was obtained by maceration. Part of this extract was sequentially partitioned and the following fractions were obtained: hexane, dichloromethane, chloroform, ethyl acetate, n-butyl, and hydromethanol for subsequent bioassay, and qualitative and quantitative phytochemical analysis. Experimental development comprises of adding a L. theobromae mycelial disk (5 mm), obtained from pure colonies, in the middle of Petri dishes with PDA culture growth (potato-dextrose-agar) plus the aforementioned substances in different concentrations (800; 1,200; 1,600; 2,000, and 2,400 µg/mL), and a control treatment (PDA). The plates were incubated in B.O.D. (25±2°C), and the assessment was performed by measuring the diameter of the colonies until it reaches the edge of the board. The experimental design was completely randomized with five replications, and the treatments were constituted of a factorial of seven extracts/fractions and six concentrations. For the Mycelial Growth Rate Index (MGRI) obtained, the analysis of variance was performed, and when significant, the regression analysis was performed. All extract/fractions decreased MGRI of L. theobromae, as the concentrations were increased. The best MGRI reduction occurred in n-butanolic fraction, and the efficiency of this fraction may be related to the presence of flavonoids and anthraquinones. The extract and fractions of P. ramiflora, a tree from the Cerrado biome in Mato Grosso do Sul, was effective in the control of L. theobromae, which can be used as a control option in organic farming or in integrated management systems.

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“…Triterpenes are the most important group of the terpenoid class. Oliveira et al (2014a) demonstrated the allelopathic effect and the negative interference in the development of root and shoot, and growth of lettuce seedlings using an ethanolic extract of the species Pouteria ramiflora, rich in triterpenes and steroids at different extract concentrations. Triterpenes are also recognized by anti-inflammatory, analgesic, cardiovascular, and antitumor effects (Simões et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

Phytochemical Profile of Pasture Weeds from the Brazilian Cerrado

et al. 2019

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The great diversity of plant species in pastures of the Brazilian Cerrado with distinct ecophysiological characteristics indicates the possibility of finding, in the cellular content of this flora, chemical compounds with potential for use in agriculture and human and animal health. Three steps are necessary to prove this hypothesis: phytochemical prospecting, characterization of secondary metabolites, and studies on the biological activities of these metabolites present in these plants.The chemical profile of secondary metabolites present in five species of the Brazilian Cerrado (Davilla elliptica, Remijia ferruginea, Luehea paniculata, Anacardium occidentale, and Acosmium dasycarpum) was traced in this research. These plant species were collected in pasture areas of Felício dos Santos, Minas Gerais. The samples were dried and submitted to two types of extract (ethanolic and hexanic). By using specific chemical reactions, the presence of coumarins, triterpenes/steroids, and anthracenosides was observed in the hexanic extracts, while the presence of alkaloids, triterpenes/steroids, flavonoids, tannins, reducing compounds, and anthocyanins was observed in the ethanolic extracts. The species presented diverse classes of compounds. However, triterpenes/steroids, tannins, reducing compounds and anthocyanins were found in all species, being the use of the solvent ethanol the most efficient in extracting the compounds. The species D. elliptica presented the highest number of classes of compounds. The widespread application in folk medicine justifies further studies on the biological activity of different metabolites in agriculture and health areas.

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Análise fitoquímica e potencial alelopático das cascas de Pouteria ramiflora na germinação de alface

Cited by 28 publications

References 13 publications

Allelopathic potential and phytochemistry of cambarazinho (Vochysia haenkeana (Spreng.) Mart.) leaves in the germination and development of lettuce and tomato

Allelopathic potential and phytochemistry of cambarazinho (Vochysia haenkeana (Spreng.) Mart.) leaves in the germination and development of lettuce and tomato

Phytochemical analysis and fungicide potential of Pouteria ramiflora against Lasiodiplodia theobromae

Phytochemical Profile of Pasture Weeds from the Brazilian Cerrado

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