Investigation of biological activities of Allamanda blanchetii, the violet Allamanda

Sharmin, Tasnuva; Sarker, Probir Kumar; Islam, Farhana; Chowdhury, Sharmin Reza; Quadery, Tasdique M.; Mian, Md. Yeunus; Rahman, Sabera; Chowdhury, Zahid Sadek; Ullah, Sharif

doi:10.1016/j.jopr.2013.07.010

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…Biological control is becoming increasingly important in integrated pest management programs, especially when discussing integrated production towards sustainable agriculture. Many plant and plant extracts have been reported to have antimicrobial properties against plant pathogenic fungi (Sharmin et al, 2013;Vergnes, 2014;Akladious et al, 2015;Santos et al, 2015). Allamanda species extract has been proved as effective in controlling plant pathogenic fungi (Islam, 2004;Ravikumar et al, 2013;Basar et al, 2011;Mone et al, 2013;Barros et al, 2015;Brito et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

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Extracts From Leaves of Allamanda blanchetti Inducing Mechanism of Defense to Diseases in Sugarcane

Oliveira¹,

Almeida²,

Silva³

et al. 2019

JAS

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This research aims to analyze the effect of the extract from a native plant from Caatinga, Allamanda blanchetti, in the induction of resistance mechanisms in a sugarcane variety smut-susceptible. Initially, it carried out a phytochemical analysis to know the main plant compounds used in this study. Diverse chemicals content in ethanolic extract from A. blanchetii were detected by thin-layer chromatography (TLC). Flavonoids, were more abundant compounds following by terpenes, stereroids and saponins. Under greenhouse conditions the sugarcane plants, SP-791011 (smut-susceptible), were sprayed with extracts from A. blanchetti extracted at cold at concentrations of 1000 ppm and acilbenzolar-S-metil (ASM) (100 mg/L). Leaves were collected at 0, 24 and 48 hours after spraying and used in the RT-PCR analysis for to identify the defense gene expression. Change in gene expression were observed in the different treatments, especially in the expression of pathogenesis-related (PR) genes. The extract of A. blanchetti induced an increase in the glucanase expression and was more effective than ASM inducer. SNPR1 gene show increased in the two treatment. The results indicate that A. blanchetti extracts was able to activate the resistance mechanism as observed in resistant plants. This paper is the first report about the use of Caatinga natural plant extracts inducing resistance genes against Sporisorium scitamineum in sugarcane susceptible genotype.

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Section: Discussionmentioning

confidence: 99%

“…It is native plant of Caatinga, a semi-arid region of Brazil Northeastern, with a great diversity of plants and animals. Many active phytochemicals have been isolated from their leaves and roots (Sharmin et al, 2013;Mone t al. 2013;Savithramma et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Extracts From Leaves of Allamanda blanchetti Inducing Mechanism of Defense to Diseases in Sugarcane

Oliveira¹,

Almeida²,

Silva³

et al. 2019

JAS

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“…Na medicina popular, as folhas de A. blanchetti são usadas para tratamento de problemas no coração e pressão alta (Almeida et al, 2005). Em estudos laboratoriais, os extratos metanólicos das folhas de A. blanchetti efetuaram atividade antioxidante, pelo método da eliminação de radicais livres, assim como toxicidade frente a Artemia salina, e ação trombolítica moderada, os extratos desencadearam proteção às hemácias no processo de hemólise, adicionalmente potencial antibacteriano contra Staphylococcus aeurs (Sharmin et al, 2013). A atividade antibacteriana também foi notada ao testarem extratos aquosos sintetizados da planta inteira, frente a Acidovorax citrulli (Schaad et al 1978) Schaad et al 2009, Pectobacteruim carotovorum subsp.…”

Section: Allamanda Blanchetti a DCunclassified

Látex de plantas da família Apocynaceae: Uma revisão

Melo

Bonilla

Lucena

2021

RSD

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O látex vegetal é excretado pelo sistema de defesa da planta, em resposta a estresses. Em certos casos, o látex pode apresentar toxicidade, mas sua utilização é viável, pois seus componentes podem possuir atividades biológicas variadas, como: antibacteriana; antitumoral; antioxidante; antifúngica, anti-inflamatório; larvicida, dentre outras. Diferentes famílias botânicas produzem látex, uma das principais e mais abrangente é a Apocynaceae. Diante dessa abrangência, torna-se necessário a realização de estudos sobre a aplicabilidade do látex. Deste modo, o presente estudo teve como objetivo promover a busca por trabalhos científicos que descrevessem sobre o uso do látex das espécies: Calotropis procera (Aiton) W.T. Aiton; Cryptostegia grandiflora R. Br; Cryptostegia madagascariensis Bojer; Hancornia speciosa Gomes; Himatanthus drasticus Mart.; Allamanda blanchetti A. DC. por meio de uma revisão bibliográfica. Os trabalhos científicos foram selecionados sob critérios de exclusão e inclusão, nas bases de dados: “Periódicos CAPES”, “Science Direct”, “Scielo”, “PubMed”,”Google Scholar” e “SciFinder” sob um intervalo de tempo de 37 anos (1984-2021), sendo utilizados trabalhos nos idiomas: inglês e português. Os resultados apontam que o látex das espécies, podem atuar como: antimicrobiano, anti-helmíntico, antitumoral, anticâncer, anti-inflamatório, quimioterapêutico, larvicida, inseticida, dentre outras atividades. Conclui-se que, o látex vegetal é uma fonte promissora para a síntese de fármacos, repelentes, cosméticos, e pode estimular pesquisas que visem a extração consciente de recursos naturais.

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“…As part of our ongoing effort to investigate the medicinal plants of Bangladesh and assemble their activities for further systematic evaluation (Sharmin et al, 2013;Sarker et al, 2014), the crude methanol extract of leaves of J. matthewii growing in Bangladesh as well as its organic and aqueous soluble fractions were subjected to the study of antioxidant potential in terms of total phenolic content and free radical scavenging property; cytotoxic, thrombolytic, membrane stabilizing, antimicrobial, peripheral analgesic, anti-diarrheal activities and phenobarbitone sodium-induced sleeping time test for the first time and we, here in, report the Sharmin et al 39 results of our preliminary investigations.…”

Section: Introductionmentioning

confidence: 99%

Investigation of biological activities of Jasminum matthewii

Sharmin¹,

Rahman²,

Tahia³

2017

Afr. J. Pharm. Pharmacol.

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The crude methanol extract of leaves of Jasminum matthewii as well as its hexane, carbon tetrachloride, chloroform and aqueous soluble partitionates were subjected to screening for antioxidant, cytotoxic, thrombolytic, membrane stabilizing, antimicrobial, analgesic, anti-diarrheal and central nervous system depressant activity assays. The antioxidant potential was evaluated in terms of total phenolic content and free radical scavenging activity using butylated hydroxytolune (BHT) and ascorbic acid as standards. Among the test samples of J. matthewii, the highest free radical scavenging activity was demonstrated by the aqueous soluble fraction (IC 50 = 41.55±0.51 µg/ml), whereas in case of brine shrimp lethality bioassay, the hexane soluble fraction revealed the highest cytotoxic activity with LC 50 value 0.19±0.32 μg/ml. In thrombolytic activity assay, the aqueous soluble fraction of J. matthewii extractives showed 62.29±0.29% of clot lysis, whereas standard streptokinase demonstrated 66.77% clot lysis. Among the test samples, the crude methanol extract inhibited 70.15±0.39% haemolysis of red blood cells induced by hypotonic solution. In case of heat-induced condition, the aqueous soluble fraction demonstrated 25.25±0.31% inhibition of haemolysis of red blood cells. None of the test samples revealed any zone of inhibition in disc diffusion assay. In peripheral analgesic activity assay, the crude methanol extract of J. matthewii demonstrated 51.02% inhibition of writhing at a dose of 400 mg/kg body weight dose compared to 74.49% inhibition by standard diclofenac sodium. In anti-diarrheal activity assay, the methanolic crude extract reduced diarrheal feces by 89.00±0.15% at 400 mg/kg dose. J. matthewii extractives potentiated phenobarbitone sodium-induced sleeping time in a dose dependent manner.

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Investigation of biological activities of Allamanda blanchetii, the violet Allamanda

Cited by 6 publications

References 7 publications

Extracts From Leaves of Allamanda blanchetti Inducing Mechanism of Defense to Diseases in Sugarcane

Extracts From Leaves of Allamanda blanchetti Inducing Mechanism of Defense to Diseases in Sugarcane

Látex de plantas da família Apocynaceae: Uma revisão

Investigation of biological activities of Jasminum matthewii

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