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Danial Thomas, P.
- Exploring the Mycological Diversity in Southern Western Ghats
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Authors
Affiliations
1 Dept. of Microbiology, J.J. College of Arts and Science, Shivpuram, Pudukkottai-622422, IN
2 PG & Research Dept. of Botany and Microbiology, A.V.V.M Sri Pushpam College (Autonomous), Poondi – 613 503, Thanjavur Dt, IN
1 Dept. of Microbiology, J.J. College of Arts and Science, Shivpuram, Pudukkottai-622422, IN
2 PG & Research Dept. of Botany and Microbiology, A.V.V.M Sri Pushpam College (Autonomous), Poondi – 613 503, Thanjavur Dt, IN
Source
Research Journal of Science and Technology, Vol 3, No 6 (2011), Pagination: 329-334Abstract
The mycobiota of the soil of the forest floor of South Western Ghats moist deciduous forests was investigated. In the present study soil fungal diversity at four sites were evaluated in a tropical moist broadleaf forest, the ecoregion of southern India. The study period was a full year covering all the four seasons viz. winter, summer, pre-monsoon and post monsoon. We isolated and identified 87 species belonging to 17 genera. Compositional differences were observed among samples from different soil samples like saprophytic species predominating in the litter layer. The total count of genus or species did not always follow the number of cases of isolation. Most of the genera detected belonged to the Ascomycotina with fewer proportions belonging to Deuteromycotina. The genera of highest incidence was found to be Aspergillus 28.73% (25 species) followed by Penicillium, Fusarium and Alternaria sharing 13.79% (12 species), 8.04% (7 species) and 6.89% (6 species) respectively. Curvularia, Mucor and Trichoderma share 5.74% (5 species each). Rhizopus comprises 3.44% (3 species). The other species like Cladosporium, Dreschlera, Curvularia, Emericella, Saccharomyces and Verticillium comprise 2.29% (2 species each). Absidia, Allomyces, Hormodendrum, Neurospora, Sarocladium, etc. comprise one species each. Among these isolates Sarocladium oryzae was found to be a rare species isolated. Hormodendrum was found to be one of a potential cellulose degraders among these isolates. Comparable levels of fungal richness were observed following traditional specimen-based collecting and culturing surveys, but only after extensive sampling.Keywords
Biodiversity, Fungi, Western Ghats, Seasons.
- Actinomycetes Synthesized Nanoparticles and their Antibacterial Activity
Abstract Views :326 |
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Authors
Affiliations
1 Medical Laboratory Science, Dilla University and Referral Hospital, ET
1 Medical Laboratory Science, Dilla University and Referral Hospital, ET
Source
Research Journal of Science and Technology, Vol 9, No 2 (2017), Pagination: 219-223Abstract
One Gram negative bacterium (Bacillus subtilis) and two Gram positive bacteria (Pseudomonas aeruginosa and Escherichia coli) were tested against silver nanoparticles synthesized (Nps) by soil isolated actinomycetes for its antibacterial activities. The zone of inhibition of silver nanoparticles was measured. The results indicated that the silver nanoparticles synthesized from Actinomycetes showed effective antibacterial activity against all the test organisms. Among the three test organisms tested P. aeruginosa showed to be more susceptible (16 mm) against the Nps synthesized with a quantity of 40 μl followed by B.subtilis (11 mm) and E.coli (11 mm) with the same concentration of Nps. Previously the synthesized Nps were confirmed for their existence with the help of UV-Vis, SEM and FTIR. The actinomycetes synthesized Nps were found to be effective enough against pathogenic organisms and can be synthesized in a large scale which needed further research and analysis.Keywords
Actinomycetes, Silver Nitrate, Nanoparticles, Antibacterial.References
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- Guangquan Li , Dan He , Yongqing Qian , Buyuan Guan , Song Gao , Yan Cui , Koji Yokoyama and Li Wang,(2012). FungusMediated Green Synthesis of Silver Nanoparticles Using Aspergillus terreus. Jilin University .Int. J. Mol. Sci. 13, 466 – 476.
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- Hemath Naveen K.S., Gaurav Kumar, Karthik L., Bhaskara Rao K.V (2010). Extracellular biosynthesis of silver nanoparticles using the filamentous fungus Penicillium Sp.VIT University, Scholars Research Library Archives of Applied Sci. Research, 2 (6): 161-167.
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- Selvakumar. P, Viveka .S, Prakash. S, Jasminebeaula .S and Uloga Nathan. R (2012) Antimicrobial activity of extra cellularly synthesized silver nanoparticles from marine derived streptomyce, Rochei .Udaya School Of Engineering. Inl. J. Pharm. Biosci.,3, (3).