scholarly journals Antimicrobial activity of Paenibacillus peoriae strain NRRL BD-62 against a broad spectrum of phytopathogenic bacteria and fungi

2003 ◽  
Vol 95 (5) ◽  
pp. 1143-1151 ◽  
Author(s):  
I. Weid ◽  
D.S. Alviano ◽  
A.L.S. Santos ◽  
R.M.A. Soares ◽  
C.S. Alviano ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Broad Spectrum ◽  
Phytopathogenic Bacteria ◽  
Bacteria And Fungi

Synthesis, antibacterial, and antifungal activities of new pyrimidinone derivatives

2015 ◽  
Vol 21 (4) ◽  
pp. 191-194 ◽  
Author(s):  
Oussama Cherif ◽  
Fatma Masmoudi ◽  
Fatma Allouche ◽  
Fakher Chabchoub ◽  
Mohamed Trigui
Keyword(s):  
Antimicrobial Activity ◽  
Broad Spectrum ◽  
Pathogenic Fungi ◽  
Gram Negative Bacteria ◽  
Efficient Synthesis ◽  
Gram Negative ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Bacteria And Fungi ◽  
Antibacterial And Antifungal

AbstractAn efficient synthesis of new pyrrolopyrimidinones 3a-d and isoxazolopyrimidinones 4a-c from the respective aminocyanopyrroles 1a-d and aminocyanoisoxazoles 2a-c is presented. The synthesized compounds were screened for antimicrobial activity against a panel of bacteria and fungi. Compound 4c exhibits remarkable activity against a broad spectrum of Gram-positive and Gram-negative bacteria and pathogenic fungi.

scholarly journals Characteristic of streptomyces species with antimicrobial activity against selected phytopathogenic bacteria and fungi

2015 ◽  
Vol 05 (01) ◽  
pp. 55-59 ◽  
Author(s):  
Silvia Kovácsová ◽  
Soňa Javoreková ◽  
Juraj Medo ◽  
Ivana Charousová ◽  
Jakub Elbl ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Streptomyces Species ◽  
Phytopathogenic Bacteria ◽  
Bacteria And Fungi

scholarly journals Synthesis, Characterization and Biological Evaluation of some Novel Pyrazolo[1,5-a]Pyrimidine Derivatives

2016 ◽  
Vol 65 ◽  
pp. 11-26
Author(s):  
Nilesh M. Thumar ◽  
Ankur A. Kaneria ◽  
Milan Vadodaria ◽  
Kartik Ladva
Keyword(s):  
Antimicrobial Activity ◽  
Broad Spectrum ◽  
Biological Evaluation ◽  
Gram Negative Bacteria ◽  
Pyrimidine Derivatives ◽  
Gram Negative ◽  
H Nmr ◽  
Ketene Dithioacetals ◽  
Convenient Synthesis ◽  
Bacteria And Fungi

A convenient synthesis of substituted Pyrazolo[1,5-a]pyrimidine was carried out by the reaction of different ketene dithioacetals with different aromatic amine in isopropanol in the presence of potassium carbonate. The newly synthesized compound were characterized by1H NMR, IR, Mass and screened for their antimicrobial activity against various strains of bacteria and fungi. From the synthesized different NCEs, compounds 8a, 8d and 8e are broad spectrum drug which can inhibit the growth of gram positive, gram negative bacteria and fungi.

Evaluation of topologically distinct constrained antimicrobial peptides with broad-spectrum antimicrobial activity

2018 ◽  
Vol 16 (32) ◽  
pp. 5764-5770 ◽  
Author(s):  
Fang Yuan ◽  
Yuan Tian ◽  
Weirong Qin ◽  
Jingxu Li ◽  
Dan Yang ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antimicrobial Peptides ◽  
Microbial Activity ◽  
Broad Spectrum ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Conformationally Constrained ◽  
Constrained Peptides ◽  
Hydrophilic Residues ◽  
Bacteria And Fungi

Conformationally constrained peptides with either α-helical or β-hairpin conformations, possessing different topological distribution of hydrophobic and hydrophilic residues, displayed distinct anti-microbial activity towards Gram positive and Gram negative bacteria and fungi.

Antagonism against phytopathogenic bacteria and fungi and phytoregulating activity of streptomycetes of chernozems Moldova

2019 ◽  
Vol 326 (1) ◽  
pp. 131-136
Author(s):  
S.A. Burtseva ◽  
◽  
M.N. Byrsa ◽  
S.N. Maslobrod ◽  
◽  
...  
Keyword(s):  
Phytopathogenic Bacteria ◽  
Bacteria And Fungi

The Study of Bacillus Subtils Antimicrobial Activity on Some of the Pathological Isolates

2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Hussein A Kadhum ◽  
Thualfakar H Hasan2
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Bacterial Growth ◽  
Broad Spectrum ◽  
Inhibitory Activity ◽  
Bacterial Pathogens ◽  
Inhibitory Ability ◽  
Selection Of

The study involved the selection of two isolates from Bacillus subtilis to investigate their inhibitory activity against some bacterial pathogens. B sub-bacteria were found to have a broad spectrum against test bacteria such as Staphylococcus aureus and Pseudomonas aeruginosa. They were about 23-30 mm and less against Klebsiella sp. The sensitivity of some antibodies was tested on the test samples. The results showed that the inhibitory ability of bacterial growth in the test samples using B. subtilis extract was more effective than the antibiotics used.

scholarly journals Antimicrobial metabolite profiling of Nigrospora sphaerica from Adiantum philippense L.

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Kolathuru Puttamadaiah Ramesha ◽  
Nagabhushana Chandra Mohana ◽  
Bettadapura Rameshgowda Nuthan ◽  
Devaraju Rakshith ◽  
Sreedharamurthy Satish
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Xanthomonas Campestris ◽  
Fungal Endophytes ◽  
Leaf Segment ◽  
Spectroscopic Techniques ◽  
Biological Potential ◽  
Bioassay Guided Fractionation ◽  
Antimicrobial Metabolite ◽  
Bacteria And Fungi

Abstract Background Endophyte bestows beneficial aspects to its inhabiting host, along with a contribution to diverse structural attributes with biological potential. In this regard, antimicrobial profiling of fungal endophytes from medicinal plant Adiantum philippense revealed bioactive Nigrospora sphaerica from the leaf segment. Chemical and biological profiling through TLC–bioautography and hyphenated spectroscopic techniques confirmed the presence of phomalactone as an antimicrobial metabolite. Results The chemical investigation of the broth extract by bioassay-guided fractionation confirmed phomalactone as a bioactive antimicrobial secondary metabolite. The antimicrobial activity of phomalactone was found to be highest against Escherichia coli by disc diffusion assay. The MIC was found to be significant against both Escherichia coli and Xanthomonas campestris in the case of bacteria and dermatophyte Candida albicans at 150 μg/ml, respectively. Conclusions Overall, the results highlighted the antimicrobial potential of phomalactone from the endophyte Nigrospora sphaerica exhibiting a broad spectrum of antimicrobial activity against human and phytopathogenic bacteria and fungi. This work is the first report regarding the antibacterial activity of phomalactone.

scholarly journals Plant antimicrobial peptides: structures, functions, and applications

2021 ◽  
Vol 62 (1) ◽  
Author(s):  
Junpeng Li ◽  
Shuping Hu ◽  
Wei Jian ◽  
Chengjian Xie ◽  
Xingyong Yang
Keyword(s):  
Antimicrobial Activity ◽  
Antimicrobial Peptides ◽  
Agricultural Production ◽  
Food Additives ◽  
Antimicrobial Activities ◽  
Gram Positive Bacteria ◽  
Potential Applications ◽  
Potential Applicability ◽  
Bacteria And Fungi ◽  
Positively Charged

AbstractAntimicrobial peptides (AMPs) are a class of short, usually positively charged polypeptides that exist in humans, animals, and plants. Considering the increasing number of drug-resistant pathogens, the antimicrobial activity of AMPs has attracted much attention. AMPs with broad-spectrum antimicrobial activity against many gram-positive bacteria, gram-negative bacteria, and fungi are an important defensive barrier against pathogens for many organisms. With continuing research, many other physiological functions of plant AMPs have been found in addition to their antimicrobial roles, such as regulating plant growth and development and treating many diseases with high efficacy. The potential applicability of plant AMPs in agricultural production, as food additives and disease treatments, has garnered much interest. This review focuses on the types of plant AMPs, their mechanisms of action, the parameters affecting the antimicrobial activities of AMPs, and their potential applications in agricultural production, the food industry, breeding industry, and medical field.

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