Antimicrobial activity from endophytic fungi Arthrinium state of Apiospora montagnei Sacc. and Papulaspora immersa

Ramos, Henrique Pereira; Braun, Glaucia Hollander; Pupo, Mônica Tallarico; Said, Suraia

doi:10.1590/s1516-89132010000300017

Cited by 51 publications

(32 citation statements)

References 16 publications

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“…Although the extracts tested herein did not work effectively against F. solani, there are many reports showing that endophyte extracts may inhibit various pathogenic microorganisms (Assakura et al, 2009;Ramos et al, 2010;Orlandelli et al, 2012;Rhoden et al, 2012;Bezerra, 2015). Therefore, these extracts may be effective in the inhibition other phytopathogens.…”

Section: Antifungal Activity Of the Crude Extractsmentioning

confidence: 62%

“…Particularly, the antimicrobial activity was evaluated, and it was found that the MIC and MBC against S. aureus were 125 and 250 µg/mL, respectively, and against E. coli, the MIC and MBC were 500 and 1000 µg/mL, respectively. Ramos et al (2010), obtained crude extracts from Papulaspora immersa and Arthrinium state endophytic fungi isolated from the roots of Smallanthus sonchifolius (yacón), and investigated the ability of these extracts to inhibit S. aureus, Kocuria rhizophila, Pseudomonas aeruginosa, and E. coli. The MIC of the extract of P. immersa against P. aeruginosa was 90 µg/mL, and the extracts of A. state from A. montagnei Sacc.…”

Section: Discussionmentioning

confidence: 99%

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Investigation of mycoviruses in endophytic and phytopathogenic strains of Colletotrichum from different hosts

et al. 2016

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ABSTRACT. Fungi belonging to the Colletotrichum genus can be categorized as endophytic or phytopathogenic. These fungi can be infected by viruses, termed mycoviruses, which are known to promote hypovirulence in infected fungi. However, there are few studies that have described mycoviral infections of endophytes. The production of secondary metabolites by endophytes with antimicrobial potential in inhibiting numerous pathogens has gained increasing attention. The aim of the current study was to investigate the presence of mycoviruses in endophytic and phytopathogenic fungi of the Colletotrichum genus, as well as to analyze the antimicrobial activity of crude extracts obtained from these samples. To detect the presence of mycoviruses in the samples, dsRNA was extracted, treated with enzymes, and analyzed following electrophoresis in agarose gel. Furthermore, isometric mycoviral particles were observed by transmission electron microscopy. Serial microdilution methodology was used to test crude extracts of Colletotrichum spp for antibacterial activity against Escherichia coli and Staphylococcus aureus, and antifungal activity against Fusarium solani. The results of the molecular and microscopic analyses indicated that a phytopathogenic strain presented infection by mycovirus. The antibacterial activity analysis revealed that the minimum inhibitory concentrations and minimum bactericidal concentrations were low for the fungal extracts of the two endophytes, indicating that these extracts were effective antibacterial agents. However, their antifungal activity against F. solani was not statistically different compared to that of the negative control.

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Section: Antifungal Activity Of the Crude Extractsmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Investigation of mycoviruses in endophytic and phytopathogenic strains of Colletotrichum from different hosts

et al. 2016

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“…The mycelial mass was also separated from the broth by filtration, and the culture broth was partitioned with chloroform. After that the organic solvents were evaporated under vacuum (Ding et al, 2010 andRamos et al, 2010). …”

Section: Antimicrobial Assay Fermentation and Treatment Of The Fermenmentioning

confidence: 99%

Antimicrobial Activity of Endophytic Fungi Isolated from Avicennia marina Plant, Red Sea, Egypt

2012

Egypt. J. Microbiol.

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WENTY ONE endophytic species were isolated from 360 ……segments of Avicennia marina from two different locations of Red Sea mangrove forest in 2009 to 2010. Some of the endophytes were identified to genus or species level using traditional morphological methods, but most were classified as sterile mycelia. The isolated species belonged to 7 genera (Acromonium, Aspergillus, Chaetomium, Cladosporium, Fusarium, Phoma and Ulocladium). Thirty nine isolates of endophytic fungi were selected to detected their antagonistic abilities against Bacillus subtilis, Staphylococcus aureus, Micrococcus luteus, Escherichia coli, Aspergillus niger andAlternaria alternate. The obtained results indicated that some isolates of the same species showed different behavior against used bacteria , while few of these isolates of the same species showed the same behavior. The tested endophytic species did not show any antagonistic ability against Aspergillus niger and Alternaria alternate.

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“…Estudos com o intuito de avaliar a atividade biológica de microrganismos endofíticos, a fim de se obter novos compostos bioativos vêm sendo conduzidos e resultados muito promissores têm sido alcançados (STROBEL et al, 2001;SOUZA et al, 2004;PHONGPAICHIT et al, 2006;FERNANDES et al, 2009;MELO et al, 2009;DING et al, 2010;LV et al, 2010;RAMOS et al, 2010;ROSA et al, 2010).…”

Section: Produção Por Microrganismos Endofíticos De Compostos Bioativunclassified

Aplicação de microrganismos endofíticos na agricultura e na produção de substâncias de interesse econômico

Santos

Varavallo

2011

Semin. Cienc. Biol. Saude

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Os microrganismos que vivem no interior de plantas e habitam de modo geral suas partes aéreas, como folhas e caules, mas não causam aparentemente nenhum dano a seus hospedeiros, são chamados de endofíticos. Além de exercerem diversas funções de importância para o hospedeiro, esses microrganismos são potencialmente úteis na agricultura e na indústria, sobretudo na farmacêutica e de defensivos agrícolas. Por se constituírem em potenciais substitutos de produtos químicos, ao exercerem ações de biocontrole e/ou promoção de crescimento de plantas, favorecendo a preservação do ambiente, vem sendo apontados como alternativa viável para sistemas de produção agrícola ecológica e economicamente sustentáveis. A obtenção de substâncias de interesse econômico, como enzimas, antibióticos e outros fármacos, a partir de microrganismos endofíticos, tem sido frequentemente relatada na literatura científica. Exemplo disso é o taxol, poderoso anticancerígeno que anteriormente era obtido apenas da exploração da planta Taxus brevifolia e, agora pode ser obtido de diferentes gêneros de fungos endofíticos. Avanços como este reforçam a grande potencialidade biotecnológica de tais microrganismos. Este trabalho visa apresentar um panorama sobre potenciais aplicações de microrganismos endofíticos na agricultura e na produção de substâncias de interesse econômico. Palavras-chave: Bactérias endofíticas. Controle biológico. Fungos endofíticos. Promoção de crescimento de plantas. Substâncias de interesse econômico. AbstractEndophytic microorganisms are mainly fungi and bacteria that live inside plants, generally inhabiting aerial parts such as leaves and stems, without causing any apparent damage to their hosts. In addition to many important functions for the host, the endophytic microorganisms are potentially useful in agriculture and industry, especially in pharmaceuticals and agrochemicals. By forming themselves into substitutes for chemicals by exercising stock biocontrol and/or promotion of plant growth, favoring the environmental preservation, has been appointed as a viable alternative agricultural production systems for environmentally and economically sustainable. Obtaining substances of economic interest, such as enzymes, antibiotics and other drugs from endophytic microorganisms has often been reported in the scientific literature. One example is taxol, a powerful anti-cancer substance that was previously obtained only from the exploitation of the plant Taxus brevifolia, and can now be obtained from different genera of endophytic fungi. Advances like this reinforce the great biotechnological potential of such microorganisms. This study presents an overview of potential applications of endophytic microorganisms in agriculture and production of substances of economic interest.

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Antimicrobial activity from endophytic fungi Arthrinium state of Apiospora montagnei Sacc. and Papulaspora immersa

Abstract: ABSTRACT

Cited by 51 publications

References 16 publications

Investigation of mycoviruses in endophytic and phytopathogenic strains of Colletotrichum from different hosts

Investigation of mycoviruses in endophytic and phytopathogenic strains of Colletotrichum from different hosts

Antimicrobial Activity of Endophytic Fungi Isolated from Avicennia marina Plant, Red Sea, Egypt

Aplicação de microrganismos endofíticos na agricultura e na produção de substâncias de interesse econômico

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