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    题名 作者 年代 出处 被引量
1Heavy metal induced DNA changes in aquatic macrophytes: Random amplified polymorphic DNA analysis and identification of sequence characterized amplified region marker显示文摘Plants have been used as good bio-indicators and genetic toxicity of environmental pollution in recent years. In this study, aquatic plants Hydrilla verticillata and Ceratophyllum demersum treated with 10 μmol/L Cd, 5 μmol/L Hg, and 20 μmol/L Cu for 96 h, showed changes in chlorophyll, protein content, and in DNA profiles. The changes in DNA profiles included variation in band intensity, presence or absence of certain bands and even appearance of new bands. Genomic template stability test performed for the qualitative measurement of changes in randomly amplified polymorphic DNA (RAPD) profiles, showed significant effect at the given concentration of metals. Cloning and sequencing of bands suggested that these markers although may not be homologous to any known gene but its conversion as a sequence characterized amplified region (SCAR) marker is useful in detecting the effects of genotoxin agents.Meetu Gupta Neera Bhalla Sarin 2009Journal of Environmental Sciences2009,21,5:9
2piRNAs Initiate an Epigenetic Memory of Nonself RNA in the C. elegans Germline显示文摘Masaki Shirayama Meetu Seth Heng-Chi Lee Weifeng Gu Takao Ishidate Darryl Conte Craig C. Mello 2012Cell2012,,1:2
3Silicon-mediated genotoxic alterations in Brassica juncea under arsenic stress: A comparative study of biochemical and molecular markers显示文摘Arsenic(As),one of the most harmful toxicant at the global level,severely affects plant metabolism when taken up.Interestingly,the presence of silicon(Si)as a fertilizer in As-contaminated soil is an effective strategy to decrease As accumulation in plants.Brassica juncea(var.Varuna)were grown hydroponically to investigate the role of Si at biochemical and molecular levels under arsenite(As^3+)stress.Seedlings of B.juncea were exposed to As^3+,Si,and a combination of both elements.Our data demonstrated that seedlings exposed to As^3+showed an inhibition in shoot length,chlorophyll,carotenoid,and protein,while co-application of Si improved these growth parameters.Silicon supplementation reduced As accumulation in shoot.Increase/decrease was observed in stress-related parameters(cysteine and proline),antioxidant enzymes(superoxide dismutase,ascorbate peroxidase,and catalase),and oxidative stress markers(malondialdehyde and H2O2),which were improved upon co-application of Si as compared to As^3+alone treatment.Random amplified polymorphic DNA(RAPD)is a suitable biomarker assay for plants for assessing the genotoxicity.Seven RAPD primers produced a total of 39 and 48 bands in the leaves of the untreated and treated seedlings,respectively.The RAPD band-profiles and genomic template stability were consistent with other growth and physiological parameters.In conclusion,the genotoxic alterations along with the biochemical parameters indicate that the exposure to Si mitigates As^3+-induced oxidative stress by improving the stress-related parameters and antioxidant system in B.juncea.Afsana PRAVEEN Chandana PANDEY Ehasanullah KHAN Medha PANTHRI Meetu GUPTA 2020Pedosphere2020,30,4:1
4Arsenic stress activates MAP kinase in rice roots and leaves显示文摘Kudupudi Prabhakara Rao Gubbala Vani Kundan Kumar Dhammaprakash Pandhari Wankhede Mohit Misra Meetu Gupta Alok Krishna Sinha 2010Archives of Biochemistry and Biophysics2010,,1:1
5Co-production of 3-hydroxypropionic acid and 1,3-propanediol from glycerol using resting cells of recombinant Klebsiella pneumoniae J2B strain overexpressing aldehyde dehydrogenase显示文摘Vinod Kumar Mugesh Sankaranarayanan Kyeung-eun Jae Meetu Durgapal Somasundar Ashok Yeounjoo Ko Ritam Sarkar Sunghoon Park 2012Applied Microbiology and Biotechnology2012,,2:1
6Optimality and duality in vector optimization involving generalized type I function over cones显示文摘Suneja S K Seema Khurana Meetu Bhatia 2011J Glob Optim2011,49,:1
7Higher order duality in vector optimization over cones显示文摘Meetu Bhatia 2012Optim Lett2012,6,:1
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