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| 1 | Soil organic carbon and phosphorus availability regulate abundance of culturable phosphate-solubilizing bacteria in paddy fields显示文摘Low availability of phosphorus(P) is a major constraint for optimal crop production, as P is mostly present in its insoluble form in soil. Therefore,phosphate-solubilizing bacteria(PSB) from paddy field soils of the Indo-Gangetic Plain, India were isolated, and their abundance was attempted to be correlated with the physicochemical characteristics of the soils. Ninety-four PSB were isolated on Pikovskaya’s agar medium, and quantitative phosphate solubilization was evaluated using NBRIP medium. The isolates solubilized P up to a concentration of 1 006 μg mL-1 from tricalcium phosphate with the secretion of organic acids. These isolates were identified by 16 S rRNA gene sequence comparison, and they belonged to Gammaproteobacteria(56 isolates),Firmicutes(28 isolates), Actinobacteria(8 isolates), and Alphaproteobacteria(2 isolates). Phylogenetic analysis confirmed the identification by clustering the isolates in the clade of the respective reference organisms. The correlation analysis between PSB abundance and physicochemical characteristics revealed that the PSB population increased with increasing levels of soil organic carbon, insoluble P, K+, and Mg2+. The promising PSB explored in this study can be further evaluated for their biofertilizer potential in the field and for their use as potent bio-inoculants. | Arvind KUMAR Lal Chand RAI | 2020 | Pedosphere2020，30，3： | 4 |
| 2 | Long-term effect of different integrated nutrient management on soil organic carbon and its fractions and sustainability of rice–wheat system in Indo Gangetic Plains of India显示文摘 | A.K. Nayak B. Gangwar Arvind K. Shukla Sonali P. Mazumdar Anjani Kumar R. Raja Anil Kumar Vinod Kumar P.K. Rai Udit Mohan | 2011 | Field Crops Research2011，，： | 1 |
| 3 | Emergence of an independent lineage of dengue virus type 1 (DENV-1) and its co-circulation with predominant DENV-3 during the 2006 dengue fever outbreak in Delhi显示文摘 | Himani Kukreti Artee Chaudhary R.S. Rautela Ranjana Anand Veena Mittal Mala Chhabra D. Bhattacharya Shiv Lal Arvind Rai | 2008 | International Journal of Infectious Diseases2008，，： | 1 |
| 4 | Molecular characterization of DENV-3 circulating during the post-monsoon period of 2013–14 in Delhi, India显示文摘Dear Editor,Dengue infection is one of the emerging concerns for public health on a global scale.Over the past few years,dengue transmission has increased in the Americas,the western Pacific and southeast Asia.The magnitude,distribution,and clinical severity of dengue outbreaks have been an alarming signal in the southeast Asia region.Major outbreaks have been reported in countries in | Pankaj Sharma Veena Mittal Mala Chhabra Roop Kumari Priyanka Singh Dipesh Bhattacharya Srinivas Venkatesh Arvind Rai | 2015 | Virologica Sinica2015，30，6： | 0 |
| 5 | Rapid metabolic fingerprinting with the aid of chemometric models to identify authenticity of natural medicines: Turmeric, Ocimum, and Withania somnifera study显示文摘Herbal medicines are popular natural medicines that have been used for decades.The use of alternative medicines continues to expand rapidly across the world.The World Health Organization suggests that quality assessment of natural medicines is essential for any therapeutic or health care applications,as their therapeutic potential varies between different geographic origins,plant species,and varieties.Classification of herbal medicines based on a limited number of secondary metabolites is not an ideal approach.Their quality should be considered based on a complete metabolic profile,as their pharmacological activity is not due to a few specific secondary metabolites but rather a larger group of bioactive compounds.A holistic and integrative approach using rapid and nondestructive analytical strategies for the screening of herbal medicines is required for robust characterization.In this study,a rapid and effective quality assessment system for geographical traceability,species,and variety-specific authenticity of the widely used natural medicines turmeric,Ocimum,and Withania somnifera was investigated using Fourier transform near-infrared(FT-NIR)spectroscopy-based metabolic fingerprinting.Four different geographical origins of turmeric,five different Ocimum species,and three different varieties of roots and leaves of Withania somnifera were studied with the aid of machine learning approaches.Extremely good discrimination(R^(2)>0.98,Q^(2)>0.97,and accuracy=1.0)with sensitivity and specificity of 100%was achieved using this metabolic fingerprinting strategy.Our study demonstrated that FT-NIR-based rapid metabolic fingerprinting can be used as a robust analytical method to authenticate several important medicinal herbs. | Samreen Khan Abhishek Kumar Rai Anjali Singh Saudan Singh Basant Kumar Dubey Raj Kishori Lal Arvind Singh Negi Nicholas Birse Prabodh Kumar Trivedi Christopher T.Elliott Ratnasekhar Ch | 2023 | Journal of Pharmaceutical Analysis2023，13，9： | 0 |
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