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Indian Journal of Microbiology

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https://www.readbyqxmd.com/read/28611506/indian-science-culture-needs-a-paradigm-shift
#1
Om P Sharma
There is a general impression in the scientific community in our country that the way science is taught, leant and the work culture of research and management of academic and research institutions is not conducive to cutting edge research, innovation and making world leaders. Mentoring continues to be poor with some exceptions. Very often, senior scientists with long innings in science teaching and research express anguish at the status quo in spite of a number of policy documents and recommendations for change...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611505/development-and-optimization-of-a-reverse-transcription-hemi-nested-pcr-primer-for-the-detection-of-potato-mop-top-virus-at-quarantine-inspection-sites-in-korea
#2
S Lee, J Y Lee, H Kim, J H Kim, J Y Rho
Potato mop-top virus (PMTV) is classified as a plant quarantine virus in Korea. It is tested at import inspection sites. In this study, two sets of reverse transcription-hemi-nested polymerase chain reaction primers were developed to diagnose PMTV. In addition, modified- positive control plasmid was developed for the identification of false positive results in plant quarantine. The assay is expected to be useful for improving the detection and diagnosis of PMTV.
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611504/genetic-diversity-of-arcobacter-species-of-animal-and-human-origin-in-andhra-pradesh-india
#3
M Soma Sekhar, T Srinivasa Rao, B K Chinnam, K V Subramanyam, M Metta, N Mohammad Sharif
Arcobacter is an emerging foodborne pathogen having zoonotic significance. Enterobacterial repetitive intergenic consensus (ERIC) PCR and repetitive sequence-based PCR (rep-PCR) analysis of a total of 41 Arcobacter isolates revealed a greater degree of genetic diversity. ERIC-PCR genotyping distinguished 14, 13 and 12 genotypes among 16, 13 and 12 isolates of A. butzleri, A. cryaerophilus and A. skirrowii, respectively. Rep-PCR genotyping distinguished 15, 12 and 11 genotypes among 16, 13 and 12 isolates of A...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611503/exploiting-phosphate-starved-cells-of-scenedesmus-sp-for-the-treatment-of-raw-sewage
#4
Swati Yewalkar-Kulkarni, Gayatri Gera, Sanjay Nene, Kiran Pandare, Bhaskar Kulkarni, Sanjay Kamble
Phosphate depletion is one of the favorable ways to enhance the sewage water treatment with the algae, however, detailed information is essential with respect to internal phosphate concentration and physiology of the algae. The growth rate of the phosphate-starved Scenedesmus cells was reduced drastically after 48 h. Indicating cells entered in the stationary phase of the growth cycle. Fourier Transform Infrared analysis of phosphate-starved Scenedesmus cells showed the reduction in internal phosphate concentration and an increase in carbohydrate/phosphate and carbohydrate/lipid ratio...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611502/deep-sequencing-reveals-highly-variable-gut-microbial-composition-of-invasive-fish-mossambicus-tilapia-oreochromis-mossambicus-collected-from-two-different-habitats
#5
Swapnil Sopan Gaikwad, Yogesh S Shouche, Wasudeo N Gade
Tilapia (Oreochromis mossambicus) is one of the most invasive fish found throughout the World and emerged as a major threat to the indigenous fishes in many countries. Investigating the gut microbial diversity of such fishes is one of the ways to understand its physiology. In the present study, we have explored the gut microbial community structure of tilapia using 16S rRNA gene sequencing on the Illumina Miseq platform. Our study showed significant differences in tilapia gut microbiota collected from different habitats (i...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611501/influence-of-diet-composition-on-cattle-rumen-methanogenesis-a-comparative-metagenomic-analysis-in-indian-and-exotic-cattle
#6
Nidhi R Parmar, Prabhakar D Pandit, Hemant J Purohit, J I Nirmal Kumar, Chaitanya G Joshi
Comparative metagenomics approach has been used in this study to discriminate colonization of methanogenic population in different breeds of cattle. We compared two Indian cattle breeds (Gir and Kankrej) and two exotic cattle (Holstein and Jersey) breeds. Using a defined dietary plan for selected Indian varieties, the diet dependent shifts in microbial community and abundance of the enzymes associated with methanogenesis were studied. This data has been compared with the available rumen metagenome data from Holstein and Jersey dairy cattle...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611500/optimization-of-nutrients-and-culture-conditions-for-alkaline-protease-production-using-two-endophytic-micrococci-micrococcus-aloeverae-and-micrococcus-yunnanensis
#7
Om Prakash, Yogesh Nimonkar, Mahesh S Chavadar, Nidhi Bharti, Shrikant Pawar, Ashutosh Sharma, Yogesh S Shouche
An endophytic species of Micrococcus was isolated from Aloe vera leaf (syn. Aloe barbadensis) and screened for protease production with five other species of Micrococcus. Data indicated that endophytic Micrococcus aloeverae AE-6 MCC 2184(T) and Micrococcus yunnanensis DSM 21948(T) showed efficient protease production potential and secreted active protease at high salt (10%), temperature (40 °C) and in wide range of pH 8-10. Unlike M. yunnanensis DSM 21948(T), protease production by M. aloeverae AE-6 MCC 2184(T) was stringently controlled by pH...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611499/lactobacillus-futsaii-cs3-a-new-gaba-producing-strain-isolated-from-thai-fermented-shrimp-kung-som
#8
Chatthaphisuth Sanchart, Onnicha Rattanaporn, Dietmar Haltrich, Pimpimol Phukpattaranont, Suppasil Maneerat
Kung-Som is a popular traditional Thai fermented shrimp product. It is rich in glutamic acid, which is the major substrate for the biosynthesis of gamma-aminobutyric acid (GABA) by lactic acid bacteria (LAB). In the present study, LAB from Kung-Som were isolated, screened for GABA formation, and the two isolates that transform glutamic acid most efficiently into GABA were identified. Based on the API-CHL50 fermentation profile and a phylogenetic tree of 16S rDNA sequences, strain CS3 and CS5 were identified as Lactobacillus futsaii, which was for the first time shown to be a promising GABA producer...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611498/in-vitro-characterization-of-lactobacillus-plantarum-strains-with-inhibitory-activity-on-enteropathogens-for-use-as-potential-animal-probiotics
#9
Sasikumar Arunachalam Palaniyandi, Karthiyaini Damodharan, Joo-Won Suh, Seung Hwan Yang
The present study evaluates the probiotic properties of three Lactobacillus plantarum strains MJM60319, MJM60298, and MJM60399 possessing antimicrobial activity against animal enteric pathogens. The three strains did not show bioamine production, mucinolytic and hemolytic activity and were susceptible to common antibiotics. The L. plantarum strains survived well in the simulated orogastrointestinal transit condition and showed adherence to Caco-2 cells in vitro. The L. plantarum strains showed strong antimicrobial activity against enterotoxigenic Escherichia coli, Shiga toxin-producing E...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611497/stress-tolerant-viridibacillus-arenosi-strain-ihb-b-7171-from-tea-rhizosphere-as-a-potential-broad-spectrum-microbial-inoculant
#10
Rishu Thakur, K C Sharma, Ashu Gulati, R K Sud, Arvind Gulati
Viridibacillus arenosi strain IHB B 7171 identified based on 16S rRNA gene sequence produced colony forming units (cfu/ml) ranging from 3.3 × 10(4) to 1.2 × 10(10) under pH 5-11, 2.2 × 10(2) to 1.4 × 10(10) for temperature 5-40 °C, 2.4 × 10(2) to 1.1 × 10(10) for PEG 6000 10-30%, 2.2 × 10(2) to 1.4 × 10(10) for 2.5-10% NaCl, 3.1 × 10(3) to 1.7 × 10(9) for 2.5-7.5 mM CaCl2, 2.2 × 10(2) to 1.4 × 10(7) for 2.5-7.5 mM AlCl3, and 3.2 × 10(2) to 1.2 × 10(7) for 2.5-7...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611496/a-bacteriophage-mediated-gold-nanoparticles-synthesis-and-their-anti-biofilm-activity
#11
S S Ahiwale, A V Bankar, S Tagunde, B P Kapadnis
In the present study, gold nanoparticles (AuNPs) synthesis was carried out by using a rare bacteriophage which is morphologically similar to 7-11 phages of the C3 morphotype of tailed phage belonging to Podoviridae family as green route. Effect of various physiological parameters like pH, temperature and concentration of gold chloride salt on AuNPs synthesis was studied. The reaction mixtures have shown vivid colours at various physiological parameters. Phage inspired AuNPs were further characterized by using different techniques such as UV-Vis spectrophotometry, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and dynamic light scattering (DLS)...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611495/antibacterial-anticancer-and-neuroprotective-activities-of-rare-actinobacteria-from-mangrove-forest-soils
#12
Adzzie-Shazleen Azman, Iekhsan Othman, Chee-Mun Fang, Kok-Gan Chan, Bey-Hing Goh, Learn-Han Lee
Mangrove is a complex ecosystem that contains diverse microbial communities, including rare actinobacteria with great potential to produce bioactive compounds. To date, bioactive compounds extracted from mangrove rare actinobacteria have demonstrated diverse biological activities. The discovery of three novel rare actinobacteria by polyphasic approach, namely Microbacterium mangrovi MUSC 115(T), Sinomonas humi MUSC 117(T) and Monashia flava MUSC 78(T) from mangrove soils at Tanjung Lumpur, Peninsular Malaysia have led to the screening on antibacterial, anticancer and neuroprotective activities...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611494/dark-fermentative-biological-hydrogen-production-from-mixed-biowastes-using-defined-mixed-cultures
#13
Sanjay K S Patel, Jung-Kul Lee, Vipin C Kalia
Biological hydrogen (H2) production from the biowastes is widely recognized as a suitable alternative approach to utilize low cost feed instead of costly individual sugars. In the present investigation, pure and mixed biowastes were fermented by defined sets of mixed cultures for hydrolysis and H2 production. Under batch conditions, up to 65, 67 and 70 L H2/kg total solids (2%, TS) were evolved from apple pomace (AP), onion peels (OP) and potato peels (PP) using a combination of hydrolytic mixed culture (MHC5) and mixed microbial cultures (MMC4 or MMC6), respectively...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611493/construction-selection-and-immunogenicity-of-recombinant-fowlpox-candidate-vaccine-co-expressing-hiv-1-gag-and-gp145
#14
Yilong Zhu, Yan Guo, Shouwen Du, Cunxia Liu, Maopeng Wang, Dayong Ren, Fei Zhao, Yanfang Zhang, Wenchao Sun, Yiquan Li, Tingting Cao, Yingyue Jiang, Bin Xing, Bing Bai, Chang Li, Ningyi Jin
An HIV candidate vaccine for the Chinese population was designed by constructing a recombinant fowlpox virus expressing HIV-1 gag and HIV gp145 proteins via homologous recombination and plaque screening using enhanced green fluorescent protein (EGFP) as the reporter gene. EGFP in the recombinant was then knocked out with the Cre/Loxp system yielding rFPVHg-Hp, which was identified at the genomic, transcriptional and translational levels. The immunogenicity of rFPVHg-Hp was analyzed by measuring levels of HIV-specific antibodies and IFN-γ-secreting splenocytes by enzyme-linked immunosorbent assay and IFN enzyme-linked immune spot test in the BALB/c mouse model...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611492/genome-mining-and-predictive-functional-profiling-of-acidophilic-rhizobacterium-pseudomonas-fluorescens-pt14
#15
Pooja Rani, Nitish Kumar Mahato, Anukriti Sharma, Desiraju Lakshmi Narsimha Rao, Komal Kamra, Rup Lal
Pseudomonas fluorescens Pt14 is a non-pathogenic and acidophilic bacterium isolated from acidic soil (pH 4.65). Genome sequencing of strain Pt14 was performed using Single Molecule Real Time (SMRT) sequencing to get insights into unique existence of this strain in acidic environment. Complete genome sequence of this strain revealed a chromosome of 5,841,722 bp having 5354 CDSs and 88 RNAs. Phylogenomic reconstruction based on 16S rRNA gene, Average Nucleotide Identity (ANI) values and marker proteins revealed that strain Pt14 shared a common clade with P...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611491/phytases-of-probiotic-bacteria-characteristics-and-beneficial-aspects
#16
REVIEW
P Priyodip, P Y Prakash, S Balaji
Probiotics play a vital role in clinical applications for the treatment of diarrhea, obesity and urinary tract infections. Phytate, an anti-nutrient, chelates essential minerals that are vital for human health. In the past few decades, research reports emphasize extensively on phytate degradation in animals. There is a growing need for finding alternate strategies of phytate utilization in human, as they are unable to produce phytase. At this juncture, probiotics can be utilized for phytase production to combat mineral deficiency in humans...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611490/gene-specific-dna-sensors-for-diagnosis-of-pathogenic-infections
#17
REVIEW
Manali Datta, Dignya Desai, Ashok Kumar
Gene specific DNA based sensors have potential applications for rapid and real time monitoring of hybridization signal with the target nucleic acid of pathogens. Different types of DNA based sensors and their applications have been studied for rapid and accurate detection of pathogens causing human diseases. These sensors are based on surface plasmon resonance, quantum-dots, molecular beacons, piezoelectric and electrochemical etc. Curbing epidemics at an early stage is one of the massive challenges in healthcare systems...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28611489/bioengineering-of-nitrilases-towards-its-use-as-green-catalyst-applications-and-perspectives
#18
REVIEW
Vinod K Nigam, Tesnim Arfi, Vishal Kumar, Pratyoosh Shukla
Nitrilases are commercial biocatalysts used for the synthesis of plastics, paints, fibers in the chemical industries, pharmaceutical drugs and herbicides for agricultural uses. Nitrilase hydrolyses the nitriles and dinitriles to their corresponding carboxylic acids and ammonia. They have a broad range of substrate specificities as well as enantio-, regio- and chemo-selective properties which make them useful for biotransformation of nitriles to important compounds because of which they are considered as 'Green Catalysts'...
June 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28148991/progress-in-microbial-carotenoids-production
#19
Ramesh Kumar Saini, Young-Soo Keum
Carotenoids are versatile isoprenoids pigments, play a vital role in the cellular system, starting from antioxidant to gene regulation. Carotenoids are widely used in food, nutraceuticals, and cosmetics owing to their vitamin A, antioxidant and anticancer activities. The demand of carotenoids in various sectors has triggered the research to explore a commercially viable and environmentally friendly production. This article presents a short review of progress in carotenoids production from microbial platforms...
March 2017: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/28148990/discovery-of-a-highly-virulent-strain-of-photorhabdus-luminescens-ssp-akhurstii-from-meghalaya-india
#20
Jyoti Kushwah, Puneet Kumar, Veena Garg, Vishal Singh Somvanshi
Photorhabdus is an insect-pathogenic Gram negative enterobacterium found in the gut of Heterorhabditis nematodes. Photorhabdus is highly virulent to insects, and can kill insects rapidly upon injection at very low concentrations of one to few cells. We characterized the virulence of Photorhabdus symbionts isolated from the Heterorhabditis nematodes collected from various parts of India by injecting different concentrations of bacterial cells into fourth instar larval stage of insect Galleria mellonella. Photorhabdus luminescens ssp...
March 2017: Indian Journal of Microbiology
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