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Papers by Utanka De
Journal of Tea Science, 2012
Glomus fasciculatum , one of the dominant arbuscular mycorrhizal fungus (AMF) associated with tea... more Glomus fasciculatum , one of the dominant arbuscular mycorrhizal fungus (AMF) associated with tea root colonization, was selected and maintained in maize plants. Besides AMF, Bacillus amyloliquefaciens TRS6 isolated from tea rhizosphere, which showed in vitro antagonism to a number of tea root rot pathogens as well as siderophore-producing and phosphate-solubilizing activities, was selected for utilization as bioinoculants in tea plants for improvement of health status. The bacterium was applied to the soil as aqueous suspensions, and in case of G. fasciculatum , soil was inoculated with its spores and in joint inoculations, the AMF was inoculated prior to the bacterium. Inoculation of rhizosphere of tea plants of six different varieties (TV-18, T-17, AV-2, T-78, UP-3 and UP-26) with any of two microorganisms increased growth of plants, but the most significant increase was obtained in dual application. Plant growth was measured in terms of increase in height, increase in number of ...
Journal of Medicinal Plants Studies, 2015
Twelve medicinal plants belonging to eight different families were selected to study the prevalen... more Twelve medicinal plants belonging to eight different families were selected to study the prevalence of AMF colonization. The plant roots and their respective rhizospheric soil were collected from the Garden of Medicinal Plants, University of North Bengal for AMF analysis and spore assessment per 100 gm of soil. The result showed variation in both AMF colonization and spore percentage. All medicinal plant species studied were found to be colonized by AMF. Highest percent colonization was evident in Justicia adhatoda (95±2.00). Highest spore count was found in Abroma augustum (197.4±9.31). Spore characteristics were studied and tried to identify upto species level based on the available standard keys. Histopathological studies revealed presence of abundant vesicles, thin branched as well as coiled arbuscules along with extra and intra radical hyphae. The present study revealed that the genus of Glomus, Gigaspora, Acaulospora were more predominant. Scutellospora and Entrophospora are l...
Archives of Phytopathology and Plant Protection, 2015
Human metabolism involves thousands of reactions and metabolites. To interpret this complexity, c... more Human metabolism involves thousands of reactions and metabolites. To interpret this complexity, computational modeling becomes an essential experimental tool. One of the most popular techniques to study human metabolism as a whole is genome scale modeling. A key challenge to applying genome scale modeling is identifying critical metabolic reactions across diverse human tissues. Here we introduce a novel algorithm called Cost Optimization Reaction Dependency Assessment (CORDA) to build genome scale models in a tissue-specific manner. CORDA performs more efficiently computationally, shows better agreement to experimental data, and displays better model functionality and capacity when compared to previous algorithms. CORDA also returns reaction associations that can greatly assist in any manual curation to be performed following the automated reconstruction process. Using CORDA, we developed a library of 76 healthy and 20 cancer tissue-specific reconstructions. These reconstructions identified which metabolic pathways are shared across diverse human tissues. Moreover, we identified changes in reactions and pathways that are differentially included and present different capacity profiles in cancer compared to healthy tissues, including up-regulation of folate metabolism, the down-regulation of thiamine metabolism, and tight regulation of oxidative phosphorylation.
II International Symposium on Citrus Biotechnology, 2011
Journal of Tea Science, 2012
Glomus fasciculatum , one of the dominant arbuscular mycorrhizal fungus (AMF) associated with tea... more Glomus fasciculatum , one of the dominant arbuscular mycorrhizal fungus (AMF) associated with tea root colonization, was selected and maintained in maize plants. Besides AMF, Bacillus amyloliquefaciens TRS6 isolated from tea rhizosphere, which showed in vitro antagonism to a number of tea root rot pathogens as well as siderophore-producing and phosphate-solubilizing activities, was selected for utilization as bioinoculants in tea plants for improvement of health status. The bacterium was applied to the soil as aqueous suspensions, and in case of G. fasciculatum , soil was inoculated with its spores and in joint inoculations, the AMF was inoculated prior to the bacterium. Inoculation of rhizosphere of tea plants of six different varieties (TV-18, T-17, AV-2, T-78, UP-3 and UP-26) with any of two microorganisms increased growth of plants, but the most significant increase was obtained in dual application. Plant growth was measured in terms of increase in height, increase in number of ...
Journal of Medicinal Plants Studies, 2015
Twelve medicinal plants belonging to eight different families were selected to study the prevalen... more Twelve medicinal plants belonging to eight different families were selected to study the prevalence of AMF colonization. The plant roots and their respective rhizospheric soil were collected from the Garden of Medicinal Plants, University of North Bengal for AMF analysis and spore assessment per 100 gm of soil. The result showed variation in both AMF colonization and spore percentage. All medicinal plant species studied were found to be colonized by AMF. Highest percent colonization was evident in Justicia adhatoda (95±2.00). Highest spore count was found in Abroma augustum (197.4±9.31). Spore characteristics were studied and tried to identify upto species level based on the available standard keys. Histopathological studies revealed presence of abundant vesicles, thin branched as well as coiled arbuscules along with extra and intra radical hyphae. The present study revealed that the genus of Glomus, Gigaspora, Acaulospora were more predominant. Scutellospora and Entrophospora are l...
Archives of Phytopathology and Plant Protection, 2015
Human metabolism involves thousands of reactions and metabolites. To interpret this complexity, c... more Human metabolism involves thousands of reactions and metabolites. To interpret this complexity, computational modeling becomes an essential experimental tool. One of the most popular techniques to study human metabolism as a whole is genome scale modeling. A key challenge to applying genome scale modeling is identifying critical metabolic reactions across diverse human tissues. Here we introduce a novel algorithm called Cost Optimization Reaction Dependency Assessment (CORDA) to build genome scale models in a tissue-specific manner. CORDA performs more efficiently computationally, shows better agreement to experimental data, and displays better model functionality and capacity when compared to previous algorithms. CORDA also returns reaction associations that can greatly assist in any manual curation to be performed following the automated reconstruction process. Using CORDA, we developed a library of 76 healthy and 20 cancer tissue-specific reconstructions. These reconstructions identified which metabolic pathways are shared across diverse human tissues. Moreover, we identified changes in reactions and pathways that are differentially included and present different capacity profiles in cancer compared to healthy tissues, including up-regulation of folate metabolism, the down-regulation of thiamine metabolism, and tight regulation of oxidative phosphorylation.
II International Symposium on Citrus Biotechnology, 2011