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Mini Review

Secondary Metabolites of Actinomycetes and their Antibacterial, Antifungal and Antiviral Properties

producers of bioactive substances, Actinobacteria continue to be an important source of novel secondary metabolites for drug application. In this review, the authors report on the bioactive antimicrobial secondary metabolites of Actinobacteria that were described between 2011 and April 2018. Special attention is paid to the chemical scaffolds, biological activities and origin of these novel antibacterial, antifungal and antiviral compounds. Arenimycin C, chromopeptide lactone RSP 01, kocurin

KATARZYNA JAKUBIEC-KRZESNIAK, ALEKSANDRA RAJNISZ-MATEUSIAK, ADAM GUSPIEL, JOANNA ZIEMSKA, JOLANTA SOLECKA

Polish Journal of Microbiology , ISSUE 3, 259–272

Research Article

Secondary Metabolites Produced by Heterorhabditis Symbionts and Their Application in Agriculture: What We Know and What to Do Next

Gram-negative Photorhabdus bacteria have a dual lifestyle: they are mutualists of Heterorhabditis nematodes and are pathogens of insects. Together, this nematode–bacterium partnership has been used to successfully control a wide range of agricultural insect pests. Photorhabdus produce a diverse array of small molecules that play key biological roles in regulating their dual roles. In particular, several secondary metabolites (SM) produced by this bacterium are known to play a critical role in

S. PATRICIA STOCK, AYAKO KUSAKABE, ROUSEL A. OROZCO

Journal of Nematology , ISSUE 4, 373–383

Original Paper

Characterization and Optimization of Biosynthesis of Bioactive Secondary Metabolites Produced by Streptomyces sp. 8812

The nutritional requirements and environmental conditions for a submerged culture of Streptomyces sp. 8812 were determined. Batch and fed-batch Streptomyces sp. 8812 fermentations were conducted to obtain high activity of secondary metabolites. In the study several factors were examined for their influence on the biosynthesis of the active metabolites-7-hydroxy-6-oxo-2,3,4,6-tetrahydroisoquinoline-3-carboxyl acid (C10H9NO4) and N-acetyl-3,4-dihydroxy-l-phenylalanine (C11H13NO5): changes in

Aleksandra Rajnisz, Adam Guśpiel, Magdalena Postek, Joanna Ziemska, Anna Laskowska, Daniel Rabczenko, Jolanta Solecka

Polish Journal of Microbiology , ISSUE 1, 51–61

Article

Acetic Acid, 2-Undecanone, and (E)-2-Decenal Ultrastructural Malformations on Meloidogyne incognita

The use of natural compounds to control phytonematodes is significantly increasing, as most of the old synthetic pesticides have been banned due to their eco-hostile character. Plant secondary metabolites are now evaluated as biologically active molecules against Meloidogyne spp. but their target site in the nematode body is rarely specified.Herein, we report on the ultrastructure modifications of the Meloidogyne incognita J2 after treatment with nematicidal plant secondary

NIKOLETTA NTALLI, MARLENA RATAJCZAK, CHRISOSTOMOS OPLOS, URANIA MENKISSOGLU-SPIROUDI, ZBIGNIEW ADAMSKI

Journal of Nematology , ISSUE 4, 248–260

original-paper

Antibacterial Activity and Mode of Action of β-caryophyllene on Bacillus cereus

functional groups including alcohol, aldehyde, phenol, ketone, ether, and hydrocarbon groups (Guimarães et al. 2019). These terpenes and terpenoids are secondary metabolites, which are often used as a functional food, food additives, medicines, nutritional supplements, and in the manufacture of cosmetics because they exhibit antibacterial, antioxidant, and anti-inflammatory properties (Zengin and Baysal 2014). Although it has been reported that the antibacterial activity of EOs can be attributed to the

CHEW-LI MOO, SHUN-KAI YANG, MOHD-AZURAIDI OSMAN, MOHD HAFIS YUSWAN, JIUN-YAN LOH, WEI-MENG LIM, SWEE-HUA-ERIN LIM, KOK-SONG LAI

Polish Journal of Microbiology , ISSUE 1, 49–54

Original Paper

Epilithic Biofilms in Lake Baikal: Screening and Diversity of PKS and NRPS Genes in the Genomes of Heterotrophic Bacteria

ELENA SUKHANOVA, EKATERINA ZIMENS, OKSANA KALUZHNAYA, VALENTINA PARFENOVA, OLGA BELYKH

Polish Journal of Microbiology , ISSUE 4, 501–516

Research Article

GENOME SHUFFLING AS AN ALTERNATIVE METHOD OF IMPROVING THE PROPERTIES OF DISTILLERY YEAST

Modern technologies of bioethanol production require distillation yeast characterized by thermotolerance, osmotolerance and increased resistance to secondary metabolites. To date, no strains have been observed in nature which possess all of the above-mentioned characteristics. For many years, intensive research has been carried out to improve the technological properties of industrial strains. A number of methods have been developed to allow genetic improvement of distillery yeasts. One of the

Aleksandra Wawro

Postępy Mikrobiologii - Advancements of Microbiology , ISSUE 3, 278–285

research-article

Fungal communities associated with Heterodera glycines and their potential in biological control: a current update

., 2019) Fungal metabolites in fungal–SCN interactions We have discussed fungi that can colonize eggs and other stages of nematodes and feed off several nematode stages. As lysotrophic organisms, fungi rely on the production of extracellular metabolites and enzymes to externally breakdown substrates into simpler organic molecules before assimilating them (Richards and Talbot, 2018). Some fungi also make specialized secondary metabolites for fitness advantages in specific ecological niches (Fox

Deepak Haarith, Kathryn E. Bushley, Senyu Chen

Journal of Nematology , 1–17

Original Paper

Culturable Endophytes Diversity Isolated from Paeonia ostii and the Genetic Basis for Their Bioactivity

bioactivity of endophyte bioactive products, suggesting that the isolated endophytes are capable of producing a plethora of secondary metabolites. These results suggest that endophytes isolated from P. ostii had abundant population diversity and biosynthetic potential, which further proved that endophytes are valuable reservoirs of novel bioactive compounds.

RUI-XIAN YANG, SHAO-WEN ZHANG, DONG XUE, JUN-HAO XUAN, YUAN-BO ZHANG, BIAO-BIAO PENG

Polish Journal of Microbiology , ISSUE 4, 441–454

original-paper

Marine Sediment Recovered Salinispora sp. Inhibits the Growth of Emerging Bacterial Pathogens and other Multi-Drug-Resistant Bacteria

biosynthetic gene clusters may be fixed at the species level due to a strong selective advantage, which suggests that some secondary metabolites represent ecotype-defining traits for S. tropica and S. arenicola, although not for S. pacifica. The more metabolically diverse species is S. pacifica and these bacteria are currently undergoing series of nascent speciation events, which may lead to fixing pathways at the species level (Ziemert et al. 2014; Millan-Aguinaga et al. 2017). Salinispora strains

LUIS CONTRERAS-CASTRO, SERGIO MARTÍNEZ-GARCÍA, JUAN C. CANCINO-DIAZ, LUIS A. MALDONADO, CLAUDIA J. HERNÁNDEZ-GUERRERO, SERGIO F. MARTÍNEZ-DÍAZ, BÁRBARA GONZÁLEZ-ACOSTA, ERIKA T. QUINTANA

Polish Journal of Microbiology , ISSUE 3, 321–330

original-paper

PCR-based Screening Approach: A Rapid Method to Detect the Biosynthetic Potential of Antimicrobials in Actinobacterial Strains

than 20 gene clusters for the production of secondary metabolites and innovative antibiotics (Busti et al. 2006). In the genome of S. avermitilis there are 25 types of gene clusters for secondary metabolites. From the 25 genes clusters, eight are for type I polyketide, two for type II related polyketide, and eight gene clusters are involved in the biosynthesis of non-ribosomal peptide synthetases (NRPS) compounds (Omura et al. 2001). The conventional method of natural drug discovery is based on the

NAILA NOUREEN, MOHSIN TASSAWAR CHEEMA, SUMAIRA ANWAR, SHAHIDA HASNAIN, IMRAN SAJID

Polish Journal of Microbiology , ISSUE 2, 139–149

Original Paper

Isolation of Bacterial Endophytes from Phalaris arundinacea and their Potential in Diclofenac and Sulfamethoxazole Degradation

as endophytes are exposed to secondary metabolites in the tissues. Therefore, they can possess the potential to degrade aromatic structures, including residues of pharmaceuticals. The endophytic strain MG7 identified as Microbacterium sp., obtained from root tissues of Phalaris arundinacea exposed to DCF and SMX was tested for the ability to remove 2 mg/l of SMX and DCF in monosubstrate cultures and in the presence of phenol as an additional carbon source. The MG7 strain was able to remove

ANNA WĘGRZYN, EWA FELIS

Polish Journal of Microbiology , ISSUE 3, 321–331

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