Browsing by Author "Lata Kumari"

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Assessment of ground and surface water quality along the river Varuna, Varanasi, India
(Kluwer Academic Publishers, 2015) Pardeep Singh; R.K. Chaturvedi; Ankit Mishra; Lata Kumari; Rishikesh Singh; D.B. Pal; Deen Dayal Giri; Nand Lal Singh; Dhanesh Tiwary; Pradeep Kumar Mishra
Multivariate statistical techniques were employed for monitoring of ground-surface water interactions in rivers. The river Varuna is situated in the Indo-Gangetic plain and is a small tributary of river Ganga. The study area was monitored at seven sampling sites for 3 years (2010–12), and eight physio-chemical parameters were taken into account for this study. The data obtained were analysed by multivariate statistical techniques so as to reveal the underlying implicit information regarding proposed interactions for the relevant area. The principal component analysis (PCA) and cluster analysis (CA), and the results of correlations were also studied for all parameters monitored at every site. Methods used in this study are essentially multivariate statistical in nature and facilitate the interpretation of data so as to extract meaningful information from the datasets. The PCA technique was able to compress the data from eight to three parameters and captured about 78.5 % of the total variance by performing varimax rotation over the principal components. The varifactors, as yielded from PCA, were treated by CA which grouped them convincingly into three groups having similar characteristics and source of contamination. Moreover, the loading of variables on significant PCs showed correlations between various ground water and surface water (GW-SW) parameters. The correlation coefficients calculated for various physiochemical parameters for ground and surface water established the correlations between them. Thus, this study presents the utility of multivariate statistical techniques for evaluation of the proposed interactions and effective future monitoring of potential sites. © 2015, Springer International Publishing Switzerland.
Biodegradation of Navy N5RL1 carpet dye by Staphylococcus saprophyticus strain BHUSS X3
(Springer Verlag, 2015) Lata Kumari; Ajay Kumar Verma; Dhanesh Tiwary; Deen Dayal Giri; Gopal Nath; Pradeep Kumar Mishra
Biodegradation of Navy N5RL1, a widely used acidic azo dye in carpet industry, was studied by bacterial strain isolated from the dye-contaminated soil collected from a carpet industry premises located in Bhadohi, Sant Ravidas Nagar and Uttar Pradesh, India. The isolated strain was identified as Staphylococcus saprophyticus BHUSS X3 on the basis of morphological, biochemical and 16S rRNA gene sequencing analysis. The strain BHUSS X3 decolorized 95.7 % of dye (100 mg/l) within 6 h at optimum pH 8, temperature 35 °C, inoculum 4.0 % under static condition during 24 h incubation. The isolated bacterial strain BHUSS X3 can toralate dye concentration upto 1,000 mg/l. The dye degradation metabolites were confirmed by analysis of degraded products using UV–Vis spectrophotometric, HPLC and FTIR technique. The phytotoxicity analysis was also conducted on Phaseolus aureus and enhanced seed germination was recorded. © 2015, The Author(s).
Methylotrophic bacteria in relation to soil and plant health
(Nova Science Publishers, Inc., 2015) Deen Dayal Giri; Ajay Kumar; Lata Kumari; Pardeep Singh; D.B. Pal; K.D. Pandey; P.K. Mishra
Methylotrophs are a diverse group of microorganisms that can use reduced onecarbon compounds, such as methanol or methane, as the carbon source for their growth; and multi-carbon compounds that contain no carbon bonds, such as dimethyl ether and dimethylamine. Utilization of various types of organic compounds present in the coal mine spoil as carbon substrate is the the reason for better survival of facultative methylotrophic bacteria in stressful and nutrient poor coal mine spoils. Methylotrophic bacteria significantly modify the physicochemical properties of degraded soil. The nutrients released from death and decay of methylotrophic bacteria facilitate growth of heterotrophic bacteria and increases microbial diversity of the degraded land. This chapter gives brief description of methylotrophic bacteria and their role in improvement of soil and plant health have given special attension. © 2015 by Nova Science Publishers, Inc. All rights reserved.