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Panneerselvam, A.
- Biodiversity of Fungi in Saltpan Soil from Coastal Area Vedaranyam, Nagapattinam District, Tamil Nadu
Authors
1 PG and Research Department of Botany and Microbiology, A.V.V.M Sri Pushpam College (Autonomous), Poondi 613 503, Thanjavur, Tamil Nadu, IN
2 PG and Research Department of Botany and Microbiology, A.V.V.M Sri Pushpam College (Autonomous), Poondi 613 503, Thanjavur, Tamil Nadu
Source
Research Journal of Science and Technology, Vol 5, No 2 (2013), Pagination: 250-254Abstract
In the present study soil sample were collected from salt pan region of Vedharanyam, Nagapattinam District, Tamilnadu. The physico-chemical characteristics of soil samples were found to affect the distribution of population of fungi. The fungal diversity from the soil sample were analysed by plating technique. Fungi isolation was done by the soil dilution method incubated at 26±2°C for 3-5 days. The predominant fungi isolated include; Asprgillus flavus, A. terreus, A. sydowi, A. oryzae, A. ruber, A. sulphureus, A. conicus, A. chevalieri, A. flavipes, Absidia glauca, Acrophialophora fusispora, Gliocladium sagariensis, Geotrichum candidum, Penicillium citrinum, P. chrysogenum, P. purpurogenum, Trichoderma harzianum, T. koningii, T. viride and Alternaria alternata.Keywords
Biodiversity, Fungi, Salt Pan Soil, Coastal, Physico-Chemical.- Antibacterial Activity of Essential Oil Extracted from Coriandrum sativam (L.) and GC-MS Analysis
Authors
1 PG and Research Department of Botany and Microbiology, A.V.V.M Sri Pushpam College (Autonomous), Poondi, Thanjavur, Tamil Nadu, IN
2 Dept of Microbiology, Thanthai Hans Roever College of Arts and Science, Perambalur - 621 212, Tamil Nadu, IN
Source
Research Journal of Science and Technology, Vol 4, No 5 (2012), Pagination: 203-207Abstract
Extraction of essential oils from locally available plant Coriandrum sativam (L.) was carried out using steam distillation followed by ether extraction. Dried and purified extracted oils were screened for their antibacterial activity of both gram positive (Staphylococcus aureus) and gram negative (Enterobacter aerogenes, Klebsiella pneumoniae, Vibrio cholerae and Salmonella typhi) bacterial strains by Agar well diffusion method. Coriandrum sativam shows antibacterial activity against the above given five bacterial strains. GC-MS was done on Coriandrum sativam oil. These results support that this plant oil can be used to cure bacterial infections and may also have role as pharmaceuticals and preservatives.Keywords
Coriandrum sativam, GC-MS, Essential Oil, Antibacterial Activity and Extraction.- Studies on the Fungi in Seasonally Inundated Sediment Habitat along South East Coast of India
Authors
1 Dept of Microbiology, Thanthai Hans Roever College of Arts and Science, Perambalur - 621 212, Tamil Nadu, IN
2 Biology Education Centre, Uppsala University, SE-752 36 Uppsala, SE
3 Dept. of Plant Science, Avvaiyar Government College for Women, Karaikal – 609 602, Pondicherry, U.T., IN
4 Dept. of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi-613 503, Thanjavur (Dt.), Tamilnadu, IN
Source
Research Journal of Science and Technology, Vol 3, No 4 (2011), Pagination: 175-179Abstract
In seasonally inundated sediments of Manianthivu of Nagapattinam district, southeast coast of India, a total number of 24 species belonged to 5 genera were recorded. They were assignable to Phycomycete (1 species) and Deuteromycetes (23 species). They exhibited spatio-temporal changes. The genus Aspergillus was constituted by the maximum of 19 species followed by Trichoderma (2 species). All other genera (Absidia, Botrytis and Fusarium) were represented by one species each. The soil characteristics such as pH (8.1 to 8.9), electrical conductivity (0.11 to 1.28 dSm-1), cation exchange capacity (8.01 to 9.5 c.mol proton+/kg), organic carbon (0.05 to 0.18%), available nitrogen (0.012 to 0.018%), available phosphorus (0.002 to 0.005%), available potassium (0.013 to 0.047 ppm), available zinc (0.39 to 0.57 ppm), available iron (2.12 to 2.83 ppm), available copper (0.19 to 0.31 ppm), available manganese (1.41 to 1.52 ppm), calcium (3.2 to 5.2 mg/kg), magnesium(3.2 to 3.9 mg/kg), sodium (0.52 to 1.22 mg/kg) and potassium (0.02 to 0.07 mg/kg) were also showed variation during different seasons. The investigation was carried out by collections and examination of sediment samples during January 2007 - December 2008, at seasonal intervals.Keywords
Fungi, Soil Characteristics, Inundated Sediment.- Isolation, Identification and Antibacterial Activity of Marine Actinomycetes Isolated from Saltpan Region
Authors
1 P.G. Research Dept. of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous) Poondi-613503, Thanjavur Dist, Tamil Nadu, IN
2 P.G. Research Dept. of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous) Poondi-613503, Thanjavur Dist, Tamil Nadu, IN
Source
Research Journal of Science and Technology, Vol 4, No 2 (2012), Pagination: 70-73Abstract
The soil sample was collected from the salt pan of Bay of Bengal at Vedaranyam,Nagapattinam (Dt.) Tamilnadu, India. The physico-chemical parameters at the sample were analyzed by using standard procedures.Totally 10 actinomycetes were isolated and identified from the salt pan soil sample. Two actinomycetes namely Jonesia denitrificans and Nocardia amarae were dominant in their growth out of 10 isolated actinomycetes.
Antibacterial activity of Jonesia denitrificans and Nocardia amarae were studied against five human bacterial pathogens such as Salmonella typhi, Bacillus subtilis, Staphylococcus aureus, Vibrio cholerae and Klebsiella pneumonia. The acetone extract of Nocardia amarae exhibited promising antibacterial activity against Bacillus subtilis (25 mm). The isolation, characterization and the study on actinomycetes can be useful in the discovery of antibiotics.
Keywords
Antibacterial Activity, Marine Actinomycetes, Jonesia denitrificans.- Utilization of Industrial Waste for the Production of Poly-Beta-Hydroxy Butyrate (Phb) by Alcaligenes eutrophus
Authors
1 PG and Research Department of Botany and Microbiology, A.V.V.M Sri Pushpam College, (Autonomous), Poondi, Thanjavur, IN
2 Department of Microbiology, A.V.C College (Autonomous), Mannampandal, Mayiladuthurai, IN
Source
Research Journal of Science and Technology, Vol 5, No 4 (2013), Pagination: 421-424Abstract
Alcaligenes eutrophus was collected from MTCC bank and purity was checked according to the guidelines of Bergey's manual of bacteriology. The PHB production ability of the culture was tested by "Granular stains method". The test organism was grown in synthetic and various industrial waste based medium (Molasses, seasame oil waste) at different concentration (10%, 20%, 30% and 40%).The PHB producer grown in synthetic and various industrial waste based medium and PHB was extracte and estimated by using UV spectrophotometer. The pure form of PHB powder was collected and studied by Infrared analysis. In the present study, the high PHB production was seen in Alcaligenes eutrophus grown in 40% concentration of seasame oil waste when compared with other substrate and synthetic medium. The present study concludes that the seasame oil waste based medium and Alcaligenes eutrophus used for PHB production in large scale that minimize the cost of the product. Thus we can minimize the use of petroleum-derived plastics and by which we can live in a plastic pollution free earth.Keywords
PHB, Molasses, Seasame Oil Waste, Alcaligenes eutrophus.- Effect of PGPR Studies on Some Angiospermic Plants
Authors
1 P.G. and Research Department of Botany and Microbiology, A.V.V.M Sri Pushpam College (Autonomous), Poondi -613503, Thanjavur, Tamilnadu, IN
2 P.G. and Research Department of Botany and Microbiology, A.V.V.M Sri Pushpam College (Autonomous), Poondi -613503, Thanjavur, Tamilnadu, IN
Source
Research Journal of Science and Technology, Vol 3, No 2 (2011), Pagination: 76-79Abstract
PGPR offers an environmentally sustainable approach to crop production and health. Many members of genera pseudomonas sp. perform beneficial effects on plants. Among them P. putida and P. fluorescens are fluorescent pseudomonas that represent Significant part of these Members. The rhizosphere soil was collected from cultivated plots. P. fluorescence was isolated and identified through morphologicaland hemical tests and it was treated against some plant pathogens. The biocontrol potential of P. fluorescens against plant pathogen such as A. terreus sp, Circinella sp, Verticillium sp, was assessed by dual plate technique. The seed treatment was made on four plants namely Hibiscus esculentus, Oryza sativa, Capsicum annum, Spinacia olerace. Pot culture techniques was applied for the growth of plants along with p. fluorescence inoculums (100ml) and chemical fertilizer (10g).The plant height, ischolar_main length, ischolar_main biomass, shoot biomass were also estimated. The results were discussed.Keywords
PGPR, Pseudomonas fluorescence.- Studies on Morphological, Physiological and Biochemical Characterization Azospirillum Spp
Authors
1 Dept of Botany and Microbiology, A. V. V. M. Sri Pushpam College (Autonomous), Poondi- 613 503, Thanjavur Dt , Tamilnadu, IN
Source
Research Journal of Science and Technology, Vol 3, No 2 (2011), Pagination: 85-94Abstract
Asymbiotic, associative, or symbiotic, Nitrogen fixing strains of Azospirillum isolated from Rhizosphere soils of paddy field. Totally 30 Azospirillum strains were isolated from paddy field of Thanjavur District by using Nitrogen free bromothymol blue (Nfb) medium. The isolated strains were characterized by physiological, morphological and biochemical characteristics and construct the phylogenetic tree. Based on this characterization, among the 30 isolates, nine belonged to A. halopraferens, 8 belonged to A. amazonense, 6 belonged to A. brasilense, 4 belonged to A. lipoferm and 3 belonged to A. irakense.Keywords
Morphological, Physiological, Biochemical Character, Azospirillum Spp.- Cultivation, Composting, Biochemical and Molecular Characterization of Pleurotus platypus (Cooke and Massee) Sacc
Authors
1 Department of Botany and Microbiology, A. V. V. M Sri Pushpam College, Poondi – 613 503, Thanjavur District, Tamil Nadu, IN
2 Department of Botany and Microbiology, A. V. V. M Sri Pushpam College, Poondi – 613 503, Thanjavur District, Tamil Nadu., IN