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Items: 1 to 50 of 117

1.

Drosophila as a Model for Developmental Toxicology: Using and Extending the Drosophotoxicology Model.

Affleck JG, Walker VK.

Methods Mol Biol. 2019;1965:139-153. doi: 10.1007/978-1-4939-9182-2_10.

PMID:
31069673
2.

Anadromous Arctic Char Microbiomes: Bioprospecting in the High Arctic.

Hamilton EF, Element G, van Coeverden de Groot P, Engel K, Neufeld JD, Shah V, Walker VK.

Front Bioeng Biotechnol. 2019 Feb 26;7:32. doi: 10.3389/fbioe.2019.00032. eCollection 2019.

3.

Ice-Binding Proteins in Plants.

Bredow M, Walker VK.

Front Plant Sci. 2017 Dec 22;8:2153. doi: 10.3389/fpls.2017.02153. eCollection 2017. Review.

4.

Microbial Diversity in a Hypersaline Sulfate Lake: A Terrestrial Analog of Ancient Mars.

Pontefract A, Zhu TF, Walker VK, Hepburn H, Lui C, Zuber MT, Ruvkun G, Carr CE.

Front Microbiol. 2017 Sep 26;8:1819. doi: 10.3389/fmicb.2017.01819. eCollection 2017.

5.

Impact of food grade and nano-TiO2 particles on a human intestinal community.

Dudefoi W, Moniz K, Allen-Vercoe E, Ropers MH, Walker VK.

Food Chem Toxicol. 2017 Aug;106(Pt A):242-249. doi: 10.1016/j.fct.2017.05.050. Epub 2017 May 28.

6.

Kidney preservation at subzero temperatures using a novel storage solution and insect ice-binding proteins.

Tomalty HE, Hamilton EF, Hamilton A, Kukal O, Allen T, Walker VK.

Cryo Letters. 2017 Mar/Apr;38(2):100-107.

PMID:
28534053
8.

Cryopreservation Of Nili-Ravi Buffalo Bull Sperm in Cryodiluent Supplemented with Lolium perenne Protein Preparations.

Qadeer S, Khan MA, Ansari MS, Rakha BA, Ejaz R, Husna AU, Azam A, Ullah N, Walker VK, Akhter S.

Cryo Letters. 2017 Jan/Feb;38(1):43-50.

PMID:
28376139
9.

Ice and anti-nucleating activities of an ice-binding protein from the annual grass, Brachypodium distachyon.

Bredow M, Tomalty HE, Smith L, Walker VK.

Plant Cell Environ. 2018 May;41(5):983-992. doi: 10.1111/pce.12889. Epub 2017 Feb 18.

PMID:
28035668
10.

Knockdown of Ice-Binding Proteins in Brachypodium distachyon Demonstrates Their Role in Freeze Protection.

Bredow M, Vanderbeld B, Walker VK.

PLoS One. 2016 Dec 13;11(12):e0167941. doi: 10.1371/journal.pone.0167941. eCollection 2016.

11.

Fate and impact of zero-valent copper nanoparticles on geographically-distinct soils.

Shah V, Luxton TP, Walker VK, Brumfield T, Yost J, Shah S, Wilkinson JE, Kambhampati M.

Sci Total Environ. 2016 Dec 15;573:661-670. doi: 10.1016/j.scitotenv.2016.08.114. Epub 2016 Aug 30.

PMID:
27585433
12.

Ice-binding proteins confer freezing tolerance in transgenic Arabidopsis thaliana.

Bredow M, Vanderbeld B, Walker VK.

Plant Biotechnol J. 2017 Jan;15(1):68-81. doi: 10.1111/pbi.12592. Epub 2016 Jul 14.

13.

Structural Basis for the Inhibition of Gas Hydrates by α-Helical Antifreeze Proteins.

Sun T, Davies PL, Walker VK.

Biophys J. 2015 Oct 20;109(8):1698-705. doi: 10.1016/j.bpj.2015.08.041.

14.

Vegetation-associated impacts on arctic tundra bacterial and microeukaryotic communities.

Shi Y, Xiang X, Shen C, Chu H, Neufeld JD, Walker VK, Grogan P.

Appl Environ Microbiol. 2015 Jan;81(2):492-501. doi: 10.1128/AEM.03229-14. Epub 2014 Oct 31.

15.

Juvenile hormone-receptor complex acts on mcm4 and mcm7 to promote polyploidy and vitellogenesis in the migratory locust.

Guo W, Wu Z, Song J, Jiang F, Wang Z, Deng S, Walker VK, Zhou S.

PLoS Genet. 2014 Oct 23;10(10):e1004702. doi: 10.1371/journal.pgen.1004702. eCollection 2014 Oct.

16.

Perturbation of bacterial ice nucleation activity by a grass antifreeze protein.

Tomalty HE, Walker VK.

Biochem Biophys Res Commun. 2014 Sep 26;452(3):636-41. doi: 10.1016/j.bbrc.2014.08.138. Epub 2014 Sep 1.

PMID:
25193694
17.

Expression and localization of an ice nucleating protein from a soil bacterium, Pseudomonas borealis.

Vanderveer TL, Choi J, Miao D, Walker VK.

Cryobiology. 2014 Aug;69(1):110-8. doi: 10.1016/j.cryobiol.2014.06.001. Epub 2014 Jun 12.

PMID:
24930584
18.

The effect of silver nanoparticles on seasonal change in arctic tundra bacterial and fungal assemblages.

Kumar N, Palmer GR, Shah V, Walker VK.

PLoS One. 2014 Jun 13;9(6):e99953. doi: 10.1371/journal.pone.0099953. eCollection 2014.

19.

Isolation and characterization of ice-binding proteins from higher plants.

Middleton AJ, Vanderbeld B, Bredow M, Tomalty H, Davies PL, Walker VK.

Methods Mol Biol. 2014;1166:255-77. doi: 10.1007/978-1-4939-0844-8_19.

PMID:
24852641
20.

Towards the selection of a produced water enrichment for biological gas hydrate inhibitors.

Wilson SL, Voordouw G, Walker VK.

Environ Sci Pollut Res Int. 2014 Sep;21(17):10254-61. doi: 10.1007/s11356-014-2912-x. Epub 2014 May 13.

PMID:
24819435
21.

Monitoring the developmental impact of copper and silver nanoparticle exposure in Drosophila and their microbiomes.

Han X, Geller B, Moniz K, Das P, Chippindale AK, Walker VK.

Sci Total Environ. 2014 Jul 15;487:822-9. doi: 10.1016/j.scitotenv.2013.12.129. Epub 2014 Jan 22.

PMID:
24462134
22.

Ice recrystallization inhibition mediated by a nuclear-expressed and -secreted recombinant ice-binding protein in the microalga Chlamydomonas reinhardtii.

Lauersen KJ, Vanderveer TL, Berger H, Kaluza I, Mussgnug JH, Walker VK, Kruse O.

Appl Microbiol Biotechnol. 2013 Nov;97(22):9763-72. doi: 10.1007/s00253-013-5226-x. Epub 2013 Sep 15.

PMID:
24037309
23.

The effect of freeze-thaw conditions on arctic soil bacterial communities.

Kumar N, Grogan P, Chu H, Christiansen CT, Walker VK.

Biology (Basel). 2013 Feb 28;2(1):356-77. doi: 10.3390/biology2010356.

24.

Biofilm, ice recrystallization inhibition and freeze-thaw protection in an epiphyte community.

Wu Z, Kan FW, She YM, Walker VK.

Prikl Biokhim Mikrobiol. 2012 Jul-Aug;48(4):403-10.

PMID:
23035573
25.

Assessing the impact of copper and zinc oxide nanoparticles on soil: a field study.

Collins D, Luxton T, Kumar N, Shah S, Walker VK, Shah V.

PLoS One. 2012;7(8):e42663. doi: 10.1371/journal.pone.0042663. Epub 2012 Aug 8.

26.

Cross-tolerance between osmotic and freeze-thaw stress in microbial assemblages from temperate lakes.

Wilson SL, Frazer C, Cumming BF, Nuin PA, Walker VK.

FEMS Microbiol Ecol. 2012 Nov;82(2):405-15. doi: 10.1111/j.1574-6941.2012.01404.x. Epub 2012 Jun 13.

27.

Prospecting for ice association: characterization of freeze-thaw selected enrichment cultures from latitudinally distant soils.

Wilson SL, Grogan P, Walker VK.

Can J Microbiol. 2012 Apr;58(4):402-12. doi: 10.1139/w2012-010. Epub 2012 Mar 21.

PMID:
22435705
28.

Antifreeze protein from freeze-tolerant grass has a beta-roll fold with an irregularly structured ice-binding site.

Middleton AJ, Marshall CB, Faucher F, Bar-Dolev M, Braslavsky I, Campbell RL, Walker VK, Davies PL.

J Mol Biol. 2012 Mar 9;416(5):713-24. doi: 10.1016/j.jmb.2012.01.032. Epub 2012 Jan 28.

PMID:
22306740
29.

Structures of hydrocarbon hydrates during formation with and without inhibitors.

Ohno H, Moudrakovski I, Gordienko R, Ripmeester J, Walker VK.

J Phys Chem A. 2012 Feb 9;116(5):1337-43. doi: 10.1021/jp210714m. Epub 2012 Jan 25.

PMID:
22185460
30.

Influence of a nanoparticle mixture on an arctic soil community.

Kumar N, Shah V, Walker VK.

Environ Toxicol Chem. 2012 Jan;31(1):131-5. doi: 10.1002/etc.721. Epub 2011 Nov 21.

PMID:
22020968
31.

The effect of TiO(2) and Ag nanoparticles on reproduction and development of Drosophila melanogaster and CD-1 mice.

Philbrook NA, Winn LM, Afrooz AR, Saleh NB, Walker VK.

Toxicol Appl Pharmacol. 2011 Dec 15;257(3):429-36. doi: 10.1016/j.taap.2011.09.027. Epub 2011 Oct 8.

PMID:
22005274
32.

Investigating the effects of functionalized carbon nanotubes on reproduction and development in Drosophila melanogaster and CD-1 mice.

Philbrook NA, Walker VK, Afrooz AR, Saleh NB, Winn LM.

Reprod Toxicol. 2011 Dec;32(4):442-8. doi: 10.1016/j.reprotox.2011.09.002. Epub 2011 Sep 24.

PMID:
21963887
33.

Novel dimeric β-helical model of an ice nucleation protein with bridged active sites.

Garnham CP, Campbell RL, Walker VK, Davies PL.

BMC Struct Biol. 2011 Sep 27;11:36. doi: 10.1186/1472-6807-11-36.

34.

Perturbation of an arctic soil microbial community by metal nanoparticles.

Kumar N, Shah V, Walker VK.

J Hazard Mater. 2011 Jun 15;190(1-3):816-22. doi: 10.1016/j.jhazmat.2011.04.005. Epub 2011 Apr 8.

PMID:
21546158
35.

Expression and characterization of an antifreeze protein from the perennial rye grass, Lolium perenne.

Lauersen KJ, Brown A, Middleton A, Davies PL, Walker VK.

Cryobiology. 2011 Jun;62(3):194-201. doi: 10.1016/j.cryobiol.2011.03.003. Epub 2011 Mar 30.

PMID:
21457707
36.

Ice restructuring inhibition activities in antifreeze proteins with distinct differences in thermal hysteresis.

Yu SO, Brown A, Middleton AJ, Tomczak MM, Walker VK, Davies PL.

Cryobiology. 2010 Dec;61(3):327-34. doi: 10.1016/j.cryobiol.2010.10.158. Epub 2010 Oct 25.

PMID:
20977900
37.

Selection of low-temperature resistance in bacteria and potential applications.

Wilson SL, Walker VK.

Environ Technol. 2010 Jul-Aug;31(8-9):943-56. doi: 10.1080/09593331003782417.

PMID:
20662383
38.

Interaction of antifreeze proteins with hydrocarbon hydrates.

Ohno H, Susilo R, Gordienko R, Ripmeester J, Walker VK.

Chemistry. 2010 Sep 10;16(34):10409-17. doi: 10.1002/chem.200903201.

PMID:
20623806
39.

Towards a green hydrate inhibitor: imaging antifreeze proteins on clathrates.

Gordienko R, Ohno H, Singh VK, Jia Z, Ripmeester JA, Walker VK.

PLoS One. 2010 Feb 11;5(2):e8953. doi: 10.1371/journal.pone.0008953.

40.

Selection for methotrexate resistance in mammalian cells bearing a Drosophila dihydrofolate reductase transgene: Methotrexate resistance in transgenic mammalian cells.

Affleck JG, Nowickyj SM, Walker VK.

Cell Biol Toxicol. 2010 Apr;26(2):117-26. doi: 10.1007/s10565-009-9122-1. Epub 2009 Apr 2.

PMID:
19337845
41.

Characterization and recombinant expression of a divergent ice nucleation protein from 'Pseudomonas borealis'.

Wu Z, Qin L, Walker VK.

Microbiology. 2009 Apr;155(Pt 4):1164-9. doi: 10.1099/mic.0.025114-0.

PMID:
19332818
42.

Identification of the ice-binding face of a plant antifreeze protein.

Middleton AJ, Brown AM, Davies PL, Walker VK.

FEBS Lett. 2009 Feb 18;583(4):815-9. doi: 10.1016/j.febslet.2009.01.035. Epub 2009 Jan 29.

43.

The bugs that came in from the cold: molecular adaptations to low temperatures in insects.

Doucet D, Walker VK, Qin W.

Cell Mol Life Sci. 2009 Apr;66(8):1404-18. doi: 10.1007/s00018-009-8320-6. Review.

PMID:
19129970
44.

A role for Drosophila in understanding drug-induced cytotoxicity and teratogenesis.

Affleck JG, Walker VK.

Cytotechnology. 2008 May;57(1):1-9. doi: 10.1007/s10616-008-9124-5. Epub 2008 Jan 30.

45.

Locust retinoid X receptors: 9-Cis-retinoic acid in embryos from a primitive insect.

Nowickyj SM, Chithalen JV, Cameron D, Tyshenko MG, Petkovich M, Wyatt GR, Jones G, Walker VK.

Proc Natl Acad Sci U S A. 2008 Jul 15;105(28):9540-5. doi: 10.1073/pnas.0712132105. Epub 2008 Jul 7.

46.

Transcription of antifreeze protein genes in Choristoneura fumiferana.

Qin W, Doucet D, Tyshenko MG, Walker VK.

Insect Mol Biol. 2007 Aug;16(4):423-34.

PMID:
17651234
47.

Approaches to the design of better low-dosage gas hydrate inhibitors.

Zeng H, Walker VK, Ripmeester JA.

Angew Chem Int Ed Engl. 2007;46(28):5402-4. No abstract available.

PMID:
17551913
48.

Transgenic rescue of methotrexate-induced teratogenicity in Drosophila melanogaster.

Affleck JG, Walker VK.

Toxicol Sci. 2007 Oct;99(2):522-31. Epub 2007 May 22.

PMID:
17519396
49.

Evolution of hyperactive, repetitive antifreeze proteins in beetles.

Graham LA, Qin W, Lougheed SC, Davies PL, Walker VK.

J Mol Evol. 2007 Apr;64(4):387-98. Epub 2007 Apr 18.

PMID:
17443386
50.

Ice-active characteristics of soil bacteria selected by ice-affinity.

Wilson SL, Kelley DL, Walker VK.

Environ Microbiol. 2006 Oct;8(10):1816-24.

PMID:
16958762

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