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2篇 您的检索式:作者名="Sonal Mishra"
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1Identification, occurrence, and validation of DRE and ABRE Cis-regulatory motifs in the promoter regions of genes of Arabidopsis thaliana显示文摘Plants posses a complex co-regulatory network Researchwhich helps them to elicit a response under diverse adverse conditions.We used an in silico approach to identify the genes with both DRE and ABRE motifs in their promoter regions in Arabidopsis thaliana.Our results showed that Arabidopsis contains a set of 2,052 genes with ABRE and DRE motifs in their promoter regions.Approximately 72%or more of the total predicted 2,052 genes had a gap distance of less than 400 bp between DRE and ABRE motifs.For positional orientation of the DRE and ABRE motifs,we found that the DR form(one in direct and the other one in reverse orientation)was more prevalent than other forms.These predicted 2,052 genes include 155 transcription factors.Using microarray data from The Arabidopsis Information Resource(TAIR)database,we present 44 transcription factors out of 155 which are upregulated by more than twofold in response to osmotic stress and ABA treatment.Fifty-one transcripts from the onepredicted above were validated using semiquantitative expression analysis to support the microarray data in TAIR.Taken together,we report a set of genes containing both DRE and ABRE motifs in their promoter regions in A.thaliana,which can be useful to understand the role of ABA under osmotic stress condition.Sonal Mishra Aparna Shukla Swati Upadhyay Sanchita Pooja Sharma Seema Singh Ujjal J.Phukan Abha Meena Feroz Khan Vineeta Tripathi Rakesh Kumar Shukla Ashok Shrama 2014Journal of Integrative Plant Biology2014,56,4:5
2Effective Doping of Rare-earth Ions in Silica Gel:A Novel Approach to Design Active Electronic Devices显示文摘Eu^(3+)luminescence spectroscopy has been used to investigate the effective doping of alkoxide-based silica(SiO_2) gels using a novel pressure-assisted sol-gel method. Our results pertaining to intense photoluminescence(PL) from gel nanospheres can be directly attributed to the high specific surface area and remarkable decrease in unsaturated dangling bonds of the gel nanospheres under pressure. An increased dehydroxylation in an autoclave resulted in enhanced red(~611 nm) PL emission from europium and is almost ten times brighter than the SiO_2 gel made at atmospheric pressure and^50 using conventional St¨ober-Fink-Bohn process. The presented results are entirely different from those reported earlier for SiO_2:Eu3+gel nanospheres and the origin of the enhanced PL have been discussed thoroughly.D.Haranath Savvi Mishra Amish G.Joshi Sonal Sahai Virendra Shanker 2011Nano-Micro Letters2011,3,3:1
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