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Mohanty, B.,Kitazumi, A.,Cheung, C.Y.M.,Lakshmanan, M.,de los Reyes, B.G.,Jang, I.C.,Lee, D.Y. Elsevier Scientific Publishers Ireland Ltd 2016 Plant science Vol.242 No.-
In this study, we have integrated a rice genome-scale metabolic network and the transcriptome of a drought-tolerant rice line, DK151, to identify the major transcriptional regulators involved in metabolic adjustments necessary for adaptation to drought. This was achieved by examining the differential expressions of transcription factors and metabolic genes in leaf, root and young panicle of rice plants subjected to drought stress during tillering, booting and panicle elongation stages. Critical transcription factors such as AP2/ERF, bZIP, MYB and NAC that control the important nodes in the gene regulatory pathway were identified through correlative analysis of the patterns of spatio-temporal expression and cis-element enrichment. We showed that many of the candidate transcription factors involved in metabolic adjustments were previously linked to phenotypic variation for drought tolerance. This approach represents the first attempt to integrate models of transcriptional regulation and metabolic pathways for the identification of candidate regulatory genes for targeted selection in rice breeding.
Fluctuations in global surface scaling behavior in sputter-deposited ZnO thin films
Mohanty, B. C.,Choi, H. R.,Cho, Y. S. Editions de Physique 2011 Europhysics letters Vol.93 No.2
<P>Quantitative analysis of the roughness scaling behavior, which is critical in understanding the evolution of surface microstructure, is reported for ZnO thin films grown by RF magnetron sputtering. The strong dependence of global and local growth parameters on the applied RF powers can be highlighted as a unique observation, which has not been available from the typical super-rough scaling studies. For example, the global growth exponent increased from 0.53± 0.02 at 75 W to 1.03± 0.01 at 200 W. The observed dominant anisotropic growth of crystallites at high powers is believed to be the main reason for the power-dependent roughening behavior.</P>
Mohanty, Aruna Kumar,Devaraju, Subramani,Kim, Nowon,Paik, Hyun-jong Elsevier 2018 Solid state ionics Vol.314 No.-
<P><B>Abstract</B></P> <P>A class of poly(ether sulfone) (FPES) block copolymers containing pendent quaternary ammonium (QA) and imidazolium (IM) groups were prepared as anion exchange membranes by reaction involving nucleophilic substitution, benzylic bromination, quaternization and anion exchange with hydroxide ions. Highly reactive hexafluorobenzene (HFB) was utilized as a linkage group for relatively low temperature (e.g., 105°C) coupling between hydrophobic and precursor hydrophilic oligomer blocks. The phase separated morphology, water uptake, swelling ratio, conductivity, and chemical stability of the resultant copolymer membranes were also investigated. The hydroxide conductivity of the ionomer membranes (IEC~2.0 mequiv./g) was 21–22mS/cm and 56–63mS/cm at 30°C and 80°C respectively. The FPES-IM membrane showed relatively very good dimensional integrity in high pH solution, whereas under the similar condition the FPES-QA membrane broke into pieces. However, the degradation of the imidazolium cations in FPES-IM was relatively faster in comparison to the ammonium cations in FPES-QA.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Anion exchange membranes were prepared using hexafluorobenzene as a linkage group. </LI> <LI> Quaternary ammonium has better alkaline stability than imidazolium cations. </LI> <LI> Block copolymer anion exchange membranes exhibited nano-phase separation in AFM. </LI> <LI> Good hydroxide ion conductivity up to 63mS/cm at 80°C was observed. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Mohanty, Bijayalaxmi,Takahashi, Hirokazu,de los Reyes, Benildo G.,Wijaya, Edward,Nakazono, Mikio,Lee, Dong-Yup Springer US 2016 Rice Vol.9 No.1
<P><B>Background</B></P><P>Rice is the only crop that germinates and elongates the coleoptile under complete submergence. It has been shown that <I>alcohol dehydrogenase 1 (ADH1)-</I>deficient mutant of rice with <I>reduced alcohol dehydrogenase activity</I> (<I>rad</I>) and reduced ATP level, is viable with much reduced coleoptile elongation under such condition. To understand the altered transcriptional regulatory mechanism of this mutant, we aimed to establish possible relationships between gene expression and <I>cis</I>-regulatory information content.</P><P><B>Findings</B></P><P>We performed promoter analysis of the publicly available differentially expressed genes in <I>ADH1</I> mutant. Our results revealed that a crosstalk between a number of key transcription factors (TFs) and different phytohormones altered transcriptional regulation leading to the survival of the mutant. Amongst the key TFs identified, we suggest potential involvement of MYB, bZIP, ARF and ERF as transcriptional activators and WRKY, ABI4 and MYC as transcriptional repressors of coleoptile elongation to maintain metabolite levels for the cell viability. Out of the repressors, WRKY TF is most likely playing a major role in the alteration of the physiological implications associated with the cell survival.</P><P><B>Conclusions</B></P><P>Overall, our analysis provides a possible transcriptional regulatory mechanism underlying the survival of the <I>rad</I> mutant under complete submergence in an energy crisis condition and develops hypotheses for further experimental validation.</P><P><B>Electronic supplementary material</B></P><P>The online version of this article (doi:10.1186/s12284-016-0124-3) contains supplementary material, which is available to authorized users.</P>
Assessment of seasonal variations in water quality of Brahmani river using PCA
Mohanty, Chitta R.,Nayak, Saroj K. Techno-Press 2017 Advances in environmental research Vol.6 No.1
Assessment of seasonal changes in surface water quality is an important aspect for evaluating temporal variations of river pollution due to natural or anthropogenic inputs of point and non-point sources. In this study, surface water quality data for 15 physico-chemical parameters collected from 7 monitoring stations in a river during the years from 2014 to 2016 were analyzed. The principal component analysis technique was employed to evaluate the seasonal correlations of water quality parameters, while the principal factor analysis technique was used to extract the parameters that are most important in assessing seasonal variations of river water quality. Analysis shows that a parameter that is most important in contributing to water quality variation for one season may not be important for another season except alkalinity, which is always the most important parameters in contributing to water quality variations for all three seasons.
Role of Dental Institutions in Tobacco Cessation in India: Current Status and Future Prospects
Mohanty, Vikrant Ranjan,Rajesh, Guru Raghavendran,Aruna, D.S. Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.4
Tobacco abuse is a major preventable cause of premature death and disease, including various cancers. The Global Adult Tobacco Survey India (GATS) 2009-10 revealed that more than one-third of adults use tobacco in one form or the other. Nearly two in five smokers and smokeless tobacco users made attempts to quit the habit in the past 12 months. Tobacco dependence is a chronic condition characterized by susceptibility of relapse over years. It can be well handled by sustained professional support from health care providers mainly through behavioral counseling and pharmacotherapy. Dental professionals can play a pivotal role in diagnosing and effectively managing tobacco dependence. Dental Institutions have rapidly grown in last two decades across the country and so has the curriculum been adapted to improve student competencies to accommodate changing disease patterns and technological advances, but not in regard to tobacco cessation. Untapped dental manpower like undergraduates, dental hygienists and other paramedical staff need effective training to be more penetrative. The present review paper explores the potential role of dental training institutions and recommends various approaches to counter public health jeopardy of tobacco related diseases.
Stabilization of expansive soil using industrial wastes
Mohanty, Soumendra K.,Pradhan, Pradip K.,Mohanty, Chitta R. Techno-Press 2017 Geomechanics & engineering Vol.12 No.1
Swelling and shrinkage characteristics of expansive fine grained soil cause volumetric changes followed by distress and damage to the structures. Soil stabilization can be explained as the alteration of the soil properties by chemical, mechanical or any other means in order to enhance the engineering properties of the soil. Utilization of industrial wastes in soil stabilization is cost effective and environment friendly. This paper presents an experimental study on stabilization of expansive soil using industrial wastes, viz. fly ash and dolochar. The paper includes the evaluation of engineering properties like unconfined compressive strength and California bearing ratio (CBR) of expansive soil collected from Balasore district of Odisha stabilized with fly ash and dolochar in different proportions and to predict the influence of these additives on engineering properties and strength characteristics of expansive soil. Both fly ash and dolochar were found to increase the CBR and decrease many index properties such as liquid limit, plastic limit, plasticity index, swelling index and UCS, thus enhancing the strength parameters of expansive soil.