ID: 56902
Title: Environmental monitoring of adulterated gasoline with kerosense and their assessment at exhaust level
Author: Sukesh Narayan Sinha, V K Shivgotra
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: Air pollution, Asulterated gasoline, volatile organic compounds, suspended particulate matter
Abstract: Fuel adulteration increases the emission of total hydrocarbons, carbon monoxide, nitrogen oxides and respirable particulate matter, and thus adds to air pollution. The study examined the effecs of mixing of different percentage of kerosene with petrol on teh motorized rickshaw exhausts in terms of volatile organic compounds (benzene, toluene, xylene and ethyl benzene) and total suspended particulate matter (SPM). The personal sampler was used for sampling, and gas chromatography-mass spectrometry for quantification of compounds. Concentration of volatile organic compounds significantly decreased (p<0.001) along with the increase in fraction of kerosene in petrol. The level of benzene in exhausts while, using petrol (100%) was significantly higher (p<0.001) than that of three combinations used in this study (75% petrol +25% kerosense, 50% + 50% kerosene and 25% petrol + 75% kerosene). Similar trend was observedfor toluene, xylene and ethyl benzene also. The mean concentration of benzene, toluene, xylene and ethyl benzene were 31, 34, 160.93, 10.07 and 5.58 ? g m-3 in pure petrol, while 12.30, 51.41, 4.89 and 3.16 g ? m-3 for fuel combination 75% petrol + 25% kerosene. The observed levels of benzene, toluene, xylene and ethyl benzene were 9.12, 41.04, 4.33 and 2.91? g m-3 for fel mixture having 50% petrol with 50% kerosene and levels were 8.36, 20.05, 3.82 and 2.95 ? g m-3 were for 25% petrol with 75% kerosene fuel combination. The levels of suspended particulate matter (SPM) increased along with the increase in fraction of kerosene in petrol. The data generated is useful to understand the common volatile organic compounds trend with the increasing fraction of kerosene in petrol.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56901
Title: In vivo interactions of entomopathogenic fungi, Beauveria spp. and Metarhizium anisopliae with selected opportunistic soil fungi of sugarcane ecosystem
Author: N Geetha, M Preseetha, K Hari, G Santhalakshmi, K Subadra Bai
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: N Geetha, M Preseetha, K Hari, G Santhalakshmi, K subadra Bai
Abstract: In the present study, the interactions of entomopathogenic fungi viz., Beauveria bassiana, Beauveria brongniartii and metarhizium anisopliae among themselves and three other opportunistic soil fung from the sugarcane ecosystem namely, Fusarium saachari, Aspergillus sp. and penecillium sp. were assayed in vivo against Galleria mellonella larvae. The tested fungi were co-applied on IV instar G. mellonella @ 1 x 107ml-1, in combinations of two, at the interval of 24 hrs either preceding or succeeding each other to assess their efficacy and sporulation rates. Results showed hat often mortality rates did not correspond to the spore harvest of the mortality agent and presence of other fungus may be antagonistic. The efficacy of B. bassiana (90%) and B. brongniartii (100%) was not enhnaced further but was negatively affected in most combinations with other fungi. In case of M. anisopliae compatibility was higher, resulting in higher mortality by application of B. bassiana before (100%) or after (83.3%) M. anisopliae than when it was applied alone (70%). During sporulation, B. bassiana faced the most intense competition from M. anisopliae (27 x 106 larva-1) and enhancement due to F. sacchari irrespective of sequence of application. In case of B. brongniartii. Sporulation was lowest in the combination of B. brongniartii preceding M. anisopliae (1.83 x 106 larva-1) and B. brongniartii succeeding B. bassiana (1.58 x 106 larva-1). Of all fungi tested, except F. sacchari (65.33 x 106 larva-1) all the other species affected sporulation of M. ansiopliae with the least in treatment of B. bassiana application following M. anisopliae. Similar kind of interaction was observed during sporulation of soil fung when combined with entomopathogenic fungi, though individually they could not cause mortality of larvae.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56900
Title: Biodegradation of anionic surfactant, sodium dodecyl sulphate by Pseudomonas aeruginosa MTC 10311
Author: P S Ambily, M S Jisha
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: Biodegradation, Pseudomonas aeruginosa, 16S rDNA typing, Sodium dodecyl sulphate
Abstract: The anionic surfactant sodium dodecyl sulphate (SDS), the core components of detergent and cosmetic product formulations, contributes significantly to the pollution profile of sewage and wastewater of all kinds. In this study, 44 SDS degrading strains were isolated by soil enrichment methods and the utilization efficiency was assessed by methylene blue active substances (MBAS) assay and High performance liquid chromatography (HPLC) method. Isolate S2 which showed maximum degradation was identified as PSeudomonas aeruginosa MTC 10311 based on phenotypic features and 16 S r DNA typing. The isolate was found to harbor plasmid within the size range of 9 - 10 kb. The cured derivative of SDS degrading Pseudomonas aeruginosa was obtained at a frequency of 10.7% by incubation with ethidium bromide (500 mg ml-1) at 400C. 96% of SDS degradation occurred at 1500 ppm level within 48 hr of incubation, whereas higher concentration of SDS (10000 ppm) showed only 20% degradation. The opitmum temperature and pH was 300C and 7.5, respectively. The additional supplementation of carbon and nitrogen source increased the degradation capacity from 93 to 95% and 90% to 96% respectively within 36 hrs of incubation.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56899
Title: Effects of five earthworm species on some physico-chemical properties of soil
Author: P S Chaudhuri, T K Pal, Sabyasachi Nath, S K Dey
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: Rubber plantation, soil, physico-chemical properteis, Earthworm cast
Abstract: An incubation experiment was conducted to study the changes that occur in organic carbon content, phosphorous and potassium availability and other soil properties with ingestion of soil mixed with rubber leaf litter and cow dung by five earthworm species viz Pontoscolex corethrurus, Drawida assamensis, Drawida papillifer papillifer, Eutyphoeus comillahnus and Metaphire houlleti of rubber plantation in Tripura (India). Due to earthworm activity organic C (1.56-1.63%) and available P(14.71 -27.60 mg 100g-1) and K (43.50-49.0 mg 100 g-1) content of the soil increased significantly (p<0.05) in most of the earthworm species studied. M. houlleti and D. papillifer papillifer had the highest P (27.60 mg 100 g-1) and K (49.0 mg 100 g-1) mobilization capacity, respectively. Earthworms, irrespective of the species, increased the pH (7.05 - 7.17) and electrical conductivity (663 - 1383 ? Scm-1) of the soil significantly (p<0.05).
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56898
Title: Distribution of enteric bacteria in the sediments of Parangipettai and Cuddalore coast of India
Author: P Murugesan, K Revathi, S Elayaraja, S Vijayalakshmi, T. Balasubramanian
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: BIO-ENV method, Enteric bacteria, In-shore waters, PRIMER, Total organic carbon
Abstract: Distribution of major groups of enteric bacteria viz., Escherichia coli, Shigella spp., Salmonella spp., Vibrio parahaemolyticus and Vibrio cholerae was studied in the sediment sampels collected from different depths of 5, 15, 25 and 35 m in Parangipettai and Cuddalore cooast during March, 2009 to February, 2010. Among the bacterial population in Parangipettai, V. parahaemolyticus was found to be maximum with an occurrence of 55% followed by Shigella spp. (15%), V. cholerae (12%), Salmonella spp. (12%) and E.coli (6%). In Cuddalore, as an oddity, Vibrio cholerae emerged as dominant species with an incidence of 60% of the total. V. parahaemolyticus came next in the order with an incidence of 14%, floowed by E. coli (11%), Shigella spp. (8%) and Salmonella spp. (7%). Similarly, monsoon and premonsoon seasons registered higher bacterial populations in both the regions. When the depth wise results were viewed, 5 and 15 m depths showed maximum (V.parahaemolyticus 3.7 x 10 CFU g-1 in Parangipettai; V. cholera - 8.6 x 10 CFU g-1 in Cuddalore) bacterial population compared to subsequent depths. Cluster and MDS also showed distinct spatial and seasonal variations of bacterial populations in both the regions. Biota-Environment (BIO_ENV) method revealed the combinations of temperature, salinity and TOC as the best match influencing bacterial population.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56897
Title: Identification of DNA damage in marine fish Therapon jarbua by comet assay technique
Author: N Nagarani, V Janaki Devi, A K Kumaraguru
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: Acute toxicity, genotoxicity, mecuric chloride, Therapon jarbua
Abstract: The marine fish Therapon jarbua was exposed to acute concentration of mercuric chloride (HgCl2). In static acute toxicity bioassays at 24, 48, 72 and 96 hr LC50 vlaues were estimated for each concentrations such as control 2, 1, 0.5, 0.25 and 0.125 ppm, respectively. DNA damage (single-strand break) was also studied in gill, kidney and blood tissues at single-cell levels in the specimens exposed to different acute doses of HgCl2, by applying single-cell electrophoresis (comet assay). Dose-dependent responses were observed in DNA damage in all tissues. A comparison of DNA damage in all tissue at two concentration namely, 0.125 and 0.25ppm indicated that the gill cells (maximum damage as 249.3 and 289.7 AU) were more sensitive to the heavy metal exposure than kidney (maximum 225.17 AU) and blood cells (maximum 200.3 AU). This study explored the utility of the comet assay for in vivo laboratory studies using fish for screening the genotoxic potential for various agents.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56896
Title: Effect of sodium nitroprusside on morphological characters under chilling stress in chickpea (Cicer arietinum L).
Author: Abha Chohan, Usha Parmar, S K Raina
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: Chickpea, sodium nitroprusside, Nitric oxide, chilling stress
Abstract: An experiment was conducted with chilling tolerant (IC-424234) and sensitive (PBG-1) chickpea (Cicer arietinum L.) genotypes of study the effect of sodium nitroprusside (SNP)-nitric oxide donor applied as foliar spray of 150 and 300? M concentrations at 45 DAS (vegetative stage), 85 DAS (flowering stage) and 125 DAS (Post flowering stage). Both the concentrations of SNP (150 and 300? M) resulted in significant increase in all the morphological characters viz plant height, number of leaves plant-1, leaf area plant-1 and leaf area index (LAI) over the control at all the stages, though lower concentration (150 ? M) was more effective. Chilling sensitive (CS) genotype PBG-1 responded more effectivellly to SNP treatment. Electrolyte leakage percentage was effectively reduced by SNP treatments in both the genotypes at low temperature (15 DAA). Chilling sensitive genotype PBG-1 treated wtih SNP (150 ? M) recoded significantly higher yield contributing characters viz number of pods plant-1, number of seeds pod-1, seed yield plant-1 (g), pod settling percentage (%), 100 seed weight (g) and yield (kg ha-1) over the chilling tolerant (IC-424234).
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56895
Title: Evaluation of potable groundwater quality in some villages of Adilabad in Andhra Pradesh, India
Author: M A Rasheed, B Anu Radha, P L Srinivasa Rao, M Lakshmi, J Bala Chennaiah, A M Dayal
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: Trace metals, heavy metals, rare earth elements, ICPMS, water quality
Abstract: Reconnaissance hydrochemical survey was conducted in some villages of Adilabad district, Andhra Pradesh to assess the quality of groundwater, which is mainly used for drinking purposes. The study consists of the determination of physico-chemical properties, trace emtals, heavy metals and rare earth elements in water samples. The data showed the variation of the investigated parameters in samples as follows : pH 6.92 to 8.32, EC 192 to 2706 ? Scm-1, TDS 129.18 to 1813.02 ppm. The pH of the waters was within the permissible limits whereas EC and TDS were above the permissible limits of World Health Organization (WHO). Total 27 elements (Li, Be, B, Na, Mg, Al, Si, K, Ca, V, Cr, Mn, Fe, Ni, Co, Cu, Zn, As, Se, Rb, Sr, Mo, Ag, Cd, Sb, Ba and Pb) were analyzed using Inductively Coupled Plasma-Mass Spectrometer (ICP-MS). The concentration of elements in water samples ranged between 0.063 to 0.611mg l-1 for B, 11.273 to 392 mg l-1 for Na, 5.871 to 77.475 mg l-1for Mg, 0.035 to 1.905 mg l-1 for Al, 0.752 to 227. 893 mg l-1for K, 11.556 to 121.655 mg l-1 for Ca and 0.076 to 0.669 mg l1 for Fe respectively. The concentrations of Na, Mg, Al, K, Ca and Fe exceeded the permissible limits of WHO and BIS guidelines for drinking water quality. In the present study, Bhimavaram, Kazipalli, Kannepalli and Chennur areas of the Adilabad are especially prone to geogenic contamination. Overall water quality was found unsatisfactory for drinking purposes.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56894
Title: In-vitro shoot regeneration via caulogenesis in fern, Pteris vittata L.
Author: Shastri P Shukla, P B Khare
Editor: Dr R C Dalela
Year: 2012
Publisher: Triveni Enterprises, Vol 33, No 4, July 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Journal of Environmental Biology
Keywords: Pteris vittata, Shoot regeneration, Arsenic hyperaccumulator, Caulogenesis
Abstract: An attempt was made to standardize the protocol for the shot regeneration via caulogenesis in Pteris vittata L. employing leaf primordium explants. Calli were induced on Murashige and Skoog ' s (MS) and Parkers and Thompson ' s (P and T) media supplemented with different combinations of 2, 4 - dichlorophenoxyaceticacid (2,4-D), 6-benzylaminopurine (BAP), alpha-naphthalene acetic acid (NAA) and Indole-3-acetic acid (IAA). A combination of full strength MS medium with 2, 4-D (2.26 uM) and BAP (2.22 ? M) was found to be ideal for profuse callusing (80%) agaisnt other combinations. More shoot differntiation (2.8+ 0.06) was achieved from the calli on one-fourth strength of P and T media fortified with BAP (4.44 ? M) and NAA (2.68 ? M) when compared to other combinations but statistically not significant.
Location: TE 15, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56893
Title: Alfred Russel Wallace - Letters and Reminiscences, Vol I
Author: James Marchant
Editor: None
Year: 1916
Publisher: Cassell and Company, Ltd, 1916
Source: Centre for Ecological Sciences
Reference: None
Subject: Alfred Russel Wallace - Letters and Reminiscences, Vol I
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56892
Title: Biogeography - Second Edition
Author: None
Editor: J H Brown and A C Gibson
Year: 1998
Publisher: None
Source: Centre for Ecological Sciences
Reference: None
Subject: Biogeography - Second Edition
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56891
Title: Maths: A Student ' s Survival Guide
Author: None
Editor: Jenny Olive
Year: 2003
Publisher: Cambridge University Press, 2003
Source: Centre for Ecological Sciences
Reference: None
Subject: Maths: A Student ' s Survival Guide
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56890
Title: Multivariate analysis of ecological data using CANOCO
Author: J Leps and P Smilauer
Editor: None
Year: 2003
Publisher: Cambridge University Press
Source: Centre for Ecological Sciences
Reference: None
Subject: Multivariate analysis of ecological data using CANOCO
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56889
Title: Statistical Advices for Biologists
Author: Werner Ulrich
Editor: None
Year: 2007
Publisher: None
Source: Centre for Ecological Sciences
Reference: None
Subject: Statistical Advices for Biologists
Keywords: None
Abstract: None
Location: TE 12, New Biology Building
Literature cited 1: None
Literature cited 2: None
ID: 56888
Title: Response to comments raised on "Surface deformation caused by April 6th 2009 earthquake in L ' Aquila (Italy): A comparatice analysis from ENVISAT ASAR, ALOS PALSAR and ASTER ' by Chini Marco; Bignami Christian and Salvatore Stramondo
Author: Mohammad Ali Goudarzi, Tsehaie Woldai, Valentyn A Tolpekin
Editor: Freek van der Meer
Year: 2012
Publisher: Elsevier, Vol 18, August 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: International Journal of Applied Earth Observation and Geoinformation
Keywords: D-InSAR, Post-seismic relaxation, Post-seismic deformation, L ' Aquila earthquake
Abstract: This paper is a response to the comments raised by Marco et al. referring to the work of Goudarzi et al, (2011) on " Surface deformation caused by the April 6th 2009 earthquake in L ' Aquila (Italy): A comparative analysis from ENVISAT ASAR, ALOS PALSAR and ASTER". While some of the issues raised by them are relevant and appropriate, the authors believe that some of their comments arose from misunderstanding and nees some elaboration. In this paper, we address their comments and clarify the ambiguities.
Location: 231
Literature cited 1: None
Literature cited 2: None