Endophytic fungi occurring in Ipomoea carnea tissues and their antimicrobial potentials

Tayung, Kumananda; Sarkar, Meenakshi; Baruah, Pranjal K.

doi:10.1590/s1516-89132012000500003

Cited by 23 publications

(9 citation statements)

References 24 publications

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“…Approximately 300,000 plant species growing in unexplored area on the earth are host to one or more endophytes. 3 , 4 One of these plants is Zingiber spectabile (common name Beehive Ginger), a member of the ginger family, which is used as an ethnobotanical plant in many countries, especially in South-East Asia. Ginger is used as a remedy ingredient to treat a wide range of diseases including cancer 5 and arthritis, 6 , 7 and it is also used as an antioxidant.…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of cyclo-(tryptophanyl-prolyl) and chloramphenicol from Streptomyces sp. SUK 25 with antimethicillin-resistant Staphylococcus aureus activity

Al-shaibani

Jalil

Sidik

et al. 2016

DDDT

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BackgroundZingiber spectabile, commonly known as Beehive Ginger, is used as an ethnobotanical plant in many countries as an appetizer or to treat stomachache, toothache, muscle sprain, and as a cure for swelling, sores and cuts. This is the first report of isolation of Streptomyces strain from the root of this plant. Strain Universiti Kebangsaan 25 (SUK 25) has a very high activity to produce secondary metabolites against methicillin-resistant Staphylococcus aureus (MRSA), which is associated with high morbidity and mortality rates due to acquired multidrug resistance genes and causes medication failure in some clinical cases worldwide. Phylogenetic analysis based on the 16S ribosomal RNA gene sequence exhibited that the most closely related strain was Streptomyces omiyaensis NBRC 13449T (99.0% similarity).AimThis study was conducted to carry out the extraction, identification, and biological evaluation of active metabolites isolated from SUK 25 against three MRSA strains, namely, MRSA ATCC 43300, MRSA ATCC 33591, and MRSA ATCC 49476.Materials and methodsThe production of secondary metabolites by this strain was optimized through Thronton’s media. Isolation, purification, and identification of the bioactive compounds were carried out using reversed-phase high-performance liquid chromatography, high-resolution mass spectrometry, Fourier transform infrared, and one-dimensional and two-dimensional nuclear magnetic resonance.ResultsDuring screening procedure, SUK 25 exhibited good antimicrobial potential against several strains of MRSA. The best biological activity was shown from fraction number VII and its subfractions F2 and F3 with minimum inhibitory concentration values at 16 µg/mL and 8 µg/mL, respectively. These two subfractions were identified as diketopiperazine cyclo-(tryptophanyl-prolyl) and chloramphenicol.ConclusionOn the basis of obtained results, SUK 25 isolated from Z. spectabile can be regarded as a new valuable source to produce secondary metabolites against bacteria, especially MRSA.

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Section: Introductionmentioning

confidence: 99%

Isolation and characterization of cyclo-(tryptophanyl-prolyl) and chloramphenicol from Streptomyces sp. SUK 25 with antimethicillin-resistant Staphylococcus aureus activity

Al-shaibani

Jalil

Sidik

et al. 2016

DDDT

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“…However, few studies can be found in the literature using an isolation temperature of 18°C (Souza et al, 2004). In general, temperatures between 25 and 30°C are commonly used (Lima et al, 2011;Banhos et al, 2014;Bongiorno et al, 2016) or an ambient temperature of 28°C (Costa et al, 2012;Tayung et al, 2012), showing a large variation in this environmental factor (Table 1).…”

Section: Discussionmentioning

confidence: 99%

Antibacterial activity of endophytic fungi isolated from Croton lechleri (Euphorbiaceae)

Vargas¹,

Albuquerque²,

Ribeiro³

et al. 2018

J. Med. Plants Res.

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Croton lechleri is a native species from the Amazon and used with relative frequency in folk medicine in Brazil and other countries. Diversity and antibacterial activity of endophytic fungi associated with this plant were studied here. Samples of leaves and stems were used and 575 endophytic fungi were isolated (307 from leaves and 268 from stems), comprising 284 morphotypes distributed in 13 genera and unknown. The most frequently isolated genera were Phomopsis (30.78%), Penicillium (21.57%) and Pestalotiopsis (16.70%). Diversity and richness of species were higher in leaf tissues. Fifty-five fungi presented antibacterial activity. The fungi with the highest activity were Phomopsis (6.34%), Penicillium (3.17%), and those unknown (5.28%). Penicillium sp. 9 showed the highest antibacterial activity against Enterococcus faecalis and Phomopsis sp. 8 and Phomopsis sp. 9 against Streptococcus pneumoniae and Staphylococcus aureus. Curvularia sp. 1 and a fungus that could not be identified (Unknown sp. 9), showed the highest antibacterial activity against Klebsiella pneumoniae and Escherichia coli, respectively. Only two fungi (Penicillium sp. 9 and Curvularia sp. 1) inhibited the five tested bacteria. Endophytic fungi of C. lechleri harbor a great diversity of endophytic fungi, which have the potential for producing antibacterial compounds.

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“…Poisoned food technique has been used in many such studies in order to evaluate the antifungal potential of the crude extracts against fungal pathogens [65,66]. The literature reviewed also indicated that ethyl acetate solvent was commonly used in the extraction of antimicrobial compounds [67,68]. The percentage inhibition in the radial growth of pathogen caused by different isolates of C. longa was also recorded (Table 3).…”

Section: Evaluation Of Endophytic Fungal Isolates and Crude Fungal Exmentioning

confidence: 99%

Production of Gentisyl Alcohol from Phoma herbarum Endophytic in Curcuma longa L. and Its Antagonistic Activity Towards Leaf Spot Pathogen Colletotrichum gloeosporioides

Gupta

Kaul

Singh

et al. 2016

Appl Biochem Biotechnol

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Endophytes from medicinal plants represent a potential source of bioactive compounds. During the present investigation, fungal endophytes were isolated from turmeric (Curcuma longa), an important medicinal plant. A total of 207 endophytic fungal isolates were obtained from the rhizome of C. longa L. They were grouped into seven genera based on morphological and molecular data. The fungal endophytes of C. longa were evaluated for antifungal activity against Colletotrichum gloeosporioides, the causal organism of leaf spot of turmeric. The disease is a major cause for economic loss in turmeric cultivation. Endophytic Phoma herbarum showed significant activity against C. gloeosporioides and was therefore selected for further studies. A compound gentisyl alcohol was isolated from P. herbarum which showed effective antagonism against C. gloeosporioides. The organism could therefore be used as a biocontrol agent against C. gloeosporioides.

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Endophytic fungi occurring in Ipomoea carnea tissues and their antimicrobial potentials

Abstract: ABSTRACT

Cited by 23 publications

References 24 publications

Isolation and characterization of cyclo-(tryptophanyl-prolyl) and chloramphenicol from Streptomyces sp. SUK 25 with antimethicillin-resistant Staphylococcus aureus activity

Isolation and characterization of cyclo-(tryptophanyl-prolyl) and chloramphenicol from Streptomyces sp. SUK 25 with antimethicillin-resistant Staphylococcus aureus activity

Antibacterial activity of endophytic fungi isolated from Croton lechleri (Euphorbiaceae)

Production of Gentisyl Alcohol from Phoma herbarum Endophytic in Curcuma longa L. and Its Antagonistic Activity Towards Leaf Spot Pathogen Colletotrichum gloeosporioides

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