Antifungal and Antivirulence Activity of Vanillin and Tannic Acid Against Aspergillus fumigatus and Fusarium solani
In this study, we evaluated the antifungal and antivirulence effects of vanillin and tannic acid against Aspergillus fumigatus and Fusarium solani. The minimum inhibitory concentrations of the compounds were determined by the microdilution method in RPMI broth in 96-well microplates according to CLSI. Conidial germination, protease production, biofilm formation, and in vivo therapeutic efficacy assays were performed. The results demonstrated that vanillin and tannic acid had antifungal activity against Aspergillus fumigatus, while tannic acid only exhibited antifungal activity against Fusarium solani. We found that vanilli...
Source: Current Microbiology - April 24, 2024 Category: Microbiology Authors: Ana L R íos-López Jorge D ávila-Aviña Gloria M Gonz ález Orlando Flores-Maldonado Source Type: research
Functional Genome Analysis of a Conditionally Pathogenic Rhizobacterial Strain, Pseudomonas putida AKMP7
This study aims to address important gaps in understanding the molecular mechanisms involved in the conditional/opportunistic pathogenesis of plant-associated, beneficial soil bacteria, using genomics approaches.PMID:38658394 | DOI:10.1007/s00284-024-03677-x (Source: Current Microbiology)
Source: Current Microbiology - April 24, 2024 Category: Microbiology Authors: Raja Gopalan Atish K Behera Alka Srivastava Vrishali Murugkar Chandrasekhar Arigela Nandini Dasgupta Gautam Das Minakshi Grover Sridev Mohapatra Source Type: research
Molecular Characterization of Class 1 Integrons and Carbapenem-Resistant Genes in Enterobacter cloacae Complex Isolates
Curr Microbiol. 2024 Apr 24;81(6):158. doi: 10.1007/s00284-024-03679-9.ABSTRACTEnterobacter cloacae complex (ECC) widely exists in the hospital environment and is one of the important conditional pathogens of hospital-acquired infection. To investigate the distribution of integrons and carbapenem-resistant genes in clinical ECC, 70 isolates of ECC from non-sputum specimens were collected. Class 1 and class 2 integron integrase gene intI1 and intI2, as well as common carbapenem-resistant genes, blaKPC, blaVIM, blaIMP, blaNDM, blaGES, and blaOXA-23, were screened. Gene cassette arrays and common promoters of class 1 integron...
Source: Current Microbiology - April 24, 2024 Category: Microbiology Authors: Yu Zhu Tong Wang Wenwen Zhu Quhao Wei Source Type: research
Antifungal and Antivirulence Activity of Vanillin and Tannic Acid Against Aspergillus fumigatus and Fusarium solani
In this study, we evaluated the antifungal and antivirulence effects of vanillin and tannic acid against Aspergillus fumigatus and Fusarium solani. The minimum inhibitory concentrations of the compounds were determined by the microdilution method in RPMI broth in 96-well microplates according to CLSI. Conidial germination, protease production, biofilm formation, and in vivo therapeutic efficacy assays were performed. The results demonstrated that vanillin and tannic acid had antifungal activity against Aspergillus fumigatus, while tannic acid only exhibited antifungal activity against Fusarium solani. We found that vanilli...
Source: Current Microbiology - April 24, 2024 Category: Microbiology Authors: Ana L R íos-López Jorge D ávila-Aviña Gloria M Gonz ález Orlando Flores-Maldonado Source Type: research
Extent of Virulence and Antibiotic Resistance Genes in Helicobacter pylori and Campylobacteria
Curr Microbiol. 2024 Apr 23;81(6):154. doi: 10.1007/s00284-024-03653-5.ABSTRACTHelicobacter pylori, a member of the clade campylobacteria, is the leading cause of chronic gastritis and gastric cancer. Virulence and antibiotic resistance of H. pylori are of great concern to public health. However, the relationship between virulence and antibiotic resistance genes in H. pylori in relation to other campylobacteria remains unclear. Using the virulence and comprehensive antibiotic resistance databases, we explored all available 354 complete genomes of H. pylori and compared it with 90 species of campylobacteria for virulence an...
Source: Current Microbiology - April 23, 2024 Category: Microbiology Authors: R Shyama Prasad Rao Sudeep D Ghate Larina Pinto Prashanth Suravajhala Prakash Patil Praveenkumar Shetty Nagib Ahsan Source Type: research
Impact of Bacillus cereus SPB-10 on Growth Promotion of Wheat (Triticum aestivum L.) Under Arsenic-Contaminated Soil
This study investigates the impact of bacteria on arsenic reduction in wheat plants, highlighting the potential of microbe-based eco-friendly strategies for plant growth. In the present study, bacterial isolate SPB-10 was survived at high concentration against both form of arsenic (As3+ and As5+). SPB-10 produced 5.2 g/L and 11.3 g/L of exo-polysaccharide at 20 ppm of As3+ and As5+, respectively, whereas qualitative examination revealed the highest siderophores ability. Other PGP attributes such as IAA production were recorded 52.12 mg/L and 95.82 mg/L, phosphate solubilization was 90.23 mg/L and 129 mg/L at 20 ppm of As3+...
Source: Current Microbiology - April 23, 2024 Category: Microbiology Authors: Prabhat K Chauhan Himanshu K Pathak Gopal Dubey Hritik Sharma Sudhir K Upadhyay Source Type: research
Comparative Analysis of Effect of Culture Conditions on Growth and C-Phycocyanin Production in Helical and Linear Spirulina
Curr Microbiol. 2024 Apr 23;81(6):152. doi: 10.1007/s00284-024-03684-y.ABSTRACTSpirulina (Arthrospira and Spirulina spp.) has always been characterized by the helical trichomes, despite the existence of linear forms. A great debate is now open on the morphological flexibility of Spirulina, but it seems that both trichome morphology and C-phycocyanin (C-PC) concentrations are influenced by the culture conditions.This work compared the effect of some key growth factors (medium pH as well as its carbon, potassium, and salt contents) on the growth and C-PC concentration of helical and linear Spirulina strains. Further, two-pha...
Source: Current Microbiology - April 23, 2024 Category: Microbiology Authors: Ibtissam Lijassi Fadia Arahou Zineb Mansouri Anass Wahby Laila Rhazi Imane Wahby Source Type: research
Description and Genomic Characteristics of Diaphorobacter limosus sp. nov., Isolated from a Sewage-Treatment Plant
Curr Microbiol. 2024 Apr 23;81(6):155. doi: 10.1007/s00284-024-03659-z.ABSTRACTA Gram-stain-negative, rod-shaped, non-motile, catalase-positive, denitrifying bacterium, designated strain Y-1T, was isolated from an aeration tank of a sewage treatment plant in China and characterized using polyphasic taxonomic approaches. Strain Y-1T could grow at 10-37 °C (optimum 25 °C), at pH 5.0-10.0 (optimum 7.0) and in the presence of 0-3.0% (w/v) NaCl (optimum 0.5%). The phylogenetic tree based on the 16S rRNA gene sequences revealed that strain Y-1T was a member of genus Diaphorobacter, and showed the highest sequence similarities ...
Source: Current Microbiology - April 23, 2024 Category: Microbiology Authors: Kaiqing Yang Jialin Tan Gengbo Jiang Zhuobiao Ni Qingqi Lin Yuanqing Chao Zhepu Ruan Rongliang Qiu Source Type: research
Biological Synthesis of Silver Nanoparticles from Lavandula mairei Humbert: Antibacterial and Antioxidant Activities
The objective of this study was to synthesize, for the first time, biologically silver nanoparticles (Ag-NPs) from Lavandula mairei Humbert (L. mairei) plant. The biosynthesized Ag-NPs were characterized by UV-visible spectral analysis, X-Ray diffraction Analysis, Fourier transform infrared spectroscopy analysis, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy. Subsequently, the antibacterial and antioxidant activities of Ag-NPs were assessed using the micro-dilution method, DPPH test and FRAP assay, respectively. The green-synthesized Ag-NPs exhibited high antibacterial activity against ESBL-p...
Source: Current Microbiology - April 22, 2024 Category: Microbiology Authors: Soufiane El Megdar Lahbib Fayzi Raja Elkheloui Asma Laktib Mohamed Bourouache Abdellah El Boulani Hicham Abou Oualid Khalil Cherifi Fouad Msanda Mohamed Hassi Rachida Mimouni Fatima Hamadi Source Type: research
Description of Roseibium sediminicola sp. nov. Isolated from Sediment of a Tidal Flat on the Yellow Sea Coast
Curr Microbiol. 2024 Apr 22;81(6):150. doi: 10.1007/s00284-024-03681-1.ABSTRACTA Gram-stain-negative, aerobic, rod-shaped, motile, flagellated bacterial strain, designated as CAU 1639T, was isolated from the tidal flat sediment on the Yellow Sea in the Republic of Korea. Growth of the isolate was observed at 20-37 °C, at pH 5.0-10.5 and with 0-7% (w/v) NaCl. The genomic DNA G + C content was 60.8%. Phylogenetic analysis, grounded on 16S rRNA gene sequencing, revealed that strain CAU 1639T was closely related to species within the genus Roseibium. It shared the highest similarity with Roseibium album CECT 5095T, followed b...
Source: Current Microbiology - April 22, 2024 Category: Microbiology Authors: Soyeon Ahn Veeraya Weerawongwiwat Yunjeong Lee David Hyung-Sun Choi Jong-Hwa Kim Jung-Hoon Yoon Jung-Sook Lee Ampaitip Sukhoom Wonyong Kim Source Type: research
An Eclectic Review on Dicarboxylic Acid Production Through Yeast Cell Factories and Its Industrial Prominence
Curr Microbiol. 2024 Apr 20;81(6):147. doi: 10.1007/s00284-024-03654-4.ABSTRACTDicarboxylic acid (DCA) is a multifaceted chemical intermediate, recoursed to produce many industrially important products such as adhesives, plasticizers, lubricants, polymers, etc. To bypass the shortcomings of the chemical methods of synthesis of DCA and to reduce fossil fuel footprints, bio-based synthesis is gaining attention. In pursuit of an eco-friendly sustainable alternative method of DCA production, microbial cell factories, and renewable organic resources are gaining popularity. Among the plethora of microbial communities, yeast is b...
Source: Current Microbiology - April 20, 2024 Category: Microbiology Authors: Ramalingam Kayalvizhi Jayacumar Sanjana Samuel Jacob Vinod Kumar Source Type: research
Heavy Metals as Catalysts in the Evolution of Antimicrobial Resistance and the Mechanisms Underpinning Co-selection
Curr Microbiol. 2024 Apr 20;81(6):148. doi: 10.1007/s00284-024-03648-2.ABSTRACTThe menace caused by antibiotic resistance in bacteria is acknowledged on a global scale. Concerns over the same are increasing because of the selection pressure exerted by a huge number of different antimicrobial agents, including heavy metals. Heavy metals are non-metabolizable and recalcitrant to degradation, therefore the bacteria can expel the pollutants out of the system and make it less harmful via different mechanisms. The selection of antibiotic-resistant bacteria may be influenced by heavy metals present in environmental reservoirs. Th...
Source: Current Microbiology - April 20, 2024 Category: Microbiology Authors: Chandra Kant Singh Kushneet Kaur Sodhi Pallee Shree V Nitin Source Type: research
Green synthesis of Superparamagnetic Iron Oxide and Silver Nanoparticles in Satureja hortensis Leave Extract: Evaluation of Antifungal Effects on Botryosphaeriaceae Species
Curr Microbiol. 2024 Apr 20;81(6):149. doi: 10.1007/s00284-024-03647-3.ABSTRACTIn recent years, green synthesis methods of metallic nanoparticles (MNPs) have been attractive because of the more facile, cheaper, and appropriate features associated with biomolecules in MNPs biosynthesis. This research represented an easy, fast, and environmentally friendly method to biosynthesis of superparamagnetic iron oxide nanoparticles (SPIONPs) and silver nanoparticles (AgNPs) by the Satureja hortensis leaf extract as stabilizer and reducer. The SPIONPs synthesized in co-precipitation method. The biosynthesized SPIONPs and AgNPs were s...
Source: Current Microbiology - April 20, 2024 Category: Microbiology Authors: Sara Abedini Shahram Pourseyedi Jafar Zolala Hamid Mohammadi Roohollah Abdolshahi Source Type: research
Serratia montpellierensis sp. nov., Isolated from Laboratory-Reared Parasitic Wasps Psyttalia lounsburyii Silvestri and Psyttalia ponerophaga Silvestri (Hymenoptera: Braconidae)
Curr Microbiol. 2024 Apr 18;81(6):146. doi: 10.1007/s00284-024-03666-0.ABSTRACTTwo strains of bacteria, PsyLou2AT and PsyPon4B, were isolated from adult braconid wasps Psyttalia lounsburyii and Psyttalia ponerophaga, respectively. These laboratory-reared wasps were investigated as agents for biological control of the olive fruit fly, Bactrocera oleae. Analysis of 16S rRNA genes of the two isolates demonstrated that they were highly related and belonged to the genus Serratia. Genomic sequencing of these isolates revealed genomes of 5,152,551 bp and 5,154,385 bp for PsyLou2AT and PsyPon4B, respectively, and both genomes had ...
Source: Current Microbiology - April 18, 2024 Category: Microbiology Authors: Michael B Blackburn M élanie Tannières Michael E Sparks Dawn E Gundersen-Rindal Marie-Claude Bon Source Type: research
Serratia montpellierensis sp. nov., Isolated from Laboratory-Reared Parasitic Wasps Psyttalia lounsburyii Silvestri and Psyttalia ponerophaga Silvestri (Hymenoptera: Braconidae)
Curr Microbiol. 2024 Apr 18;81(6):146. doi: 10.1007/s00284-024-03666-0.ABSTRACTTwo strains of bacteria, PsyLou2AT and PsyPon4B, were isolated from adult braconid wasps Psyttalia lounsburyii and Psyttalia ponerophaga, respectively. These laboratory-reared wasps were investigated as agents for biological control of the olive fruit fly, Bactrocera oleae. Analysis of 16S rRNA genes of the two isolates demonstrated that they were highly related and belonged to the genus Serratia. Genomic sequencing of these isolates revealed genomes of 5,152,551 bp and 5,154,385 bp for PsyLou2AT and PsyPon4B, respectively, and both genomes had ...
Source: Current Microbiology - April 18, 2024 Category: Microbiology Authors: Michael B Blackburn M élanie Tannières Michael E Sparks Dawn E Gundersen-Rindal Marie-Claude Bon Source Type: research
