Research Topics
| Lana ShabalaSummaryAffiliation: University of Tasmania Country: Australia Publications
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Detail Information
Publications
Responses of Listeria monocytogenes to acid stress and glucose availability revealed by a novel combination of fluorescence microscopy and microelectrode ion-selective techniquesLana Shabala
School of Agricultural Science, University of Tasmania, Hobart, Tasmania 7001, Australia
Appl Environ Microbiol 68:1794-802. 2002..The results obtained support other reports indicating that membrane transport processes are the main contributors to the process of pH(i) homeostasis in L. monocytogenes subjected to acid stress...- Measurements of net fluxes and extracellular changes of H+, Ca2+, K+, and NH4+ in Escherichia coli using ion-selective microelectrodesL Shabala
School of Agricultural Science, University of Tasmania, GPO Box 252 54, TAS 7001, Hobart, Australia
J Microbiol Methods 46:119-29. 2001..Applications of the non-invasive ion-selective microelectrode technique in microbiology are discussed... - Prolonged Abeta treatment leads to impairment in the ability of primary cortical neurons to maintain K+ and Ca2+ homeostasisLana Shabala
NeuroRepair Group, Menzies Research Institute, University of Tasmania, Private Bag 23, Hobart, Tasmania, 7001, Australia
Mol Neurodegener 5:30. 2010..We also investigated whether chronic Abeta exposure affects neuronal susceptibility to the subsequent acute excitotoxicity induced by 10 muM glutamate and assessed how Ca2+ and K+ homeostasis were affected by either treatment... - Acid and NaCl limits to growth of Listeria monocytogenes and influence of sequence of inimical acid and NaCl levels on inactivation kineticsLana Shabala
Tasmanian Institute of Agricultural Research, School of Agricultural Science, University of Tasmania, Private Bag 54, Hobart, Tasmania 7001, Australia
J Food Prot 71:1169-77. 2008..The results demonstrated that the sequence of lethal stress application strongly influences L. monocytogenes inactivation, and that L. monocytogenes growth limits are not good predictors of survival in inimical environments... - Effects of verapamil and gadolinium on caffeine-induced contractures and calcium fluxes in frog slow skeletal muscle fibersLana Shabala
School of Agricultural Science, University of Tasmania, Hobart, Tasmania 7001, Australia
J Membr Biol 221:7-13. 2008.... - Non-invasive microelectrode ion flux measurements to study adaptive responses of microorganisms to the environmentLana Shabala
Australian Food Safety Centre of Excellence, University of Tasmania, Hobart, Tasmania, Australia
FEMS Microbiol Rev 30:472-86. 2006..The technique can also be used for the rapid assessment of food-processing treatments aimed at reducing bacterial contamination of food and for the development of strategies to assess the resistance of organisms to antimicrobial agents... - Responses of Listeria monocytogenes to acid stress and glucose availability monitored by measurements of intracellular pH and viable countsLana Shabala
School of Agricultural Science, University of Tasmania, Hobart, Australia
Int J Food Microbiol 75:89-97. 2002..The pH gradient started to collapse at pHo 4 and below for trials with glucose in the medium and at pHo 5.5 and below without glucose. A recovery step was proposed after the apparently lethal treatment to assess cell viability by FRIM... - Electrical signalling and cytokinins mediate effects of light and root cutting on ion uptake in intact plantsSergey Shabala
School of Agricultural Science, University of Tasmania, Private Bag 54, Hobart, TAS 7001, Australia
Plant Cell Environ 32:194-207. 2009..Kinetin (2-4 microM), a synthetic cytokinin, reversed this effect. Regulation of ion transport by root-tip-synthesized cytokinins is discussed... - Extracellular Ca2+ ameliorates NaCl-induced K+ loss from Arabidopsis root and leaf cells by controlling plasma membrane K+ -permeable channelsSergey Shabala
School of Agricultural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
Plant Physiol 141:1653-65. 2006..Our results suggest an additional mechanism of Ca2+ action on salt toxicity in plants: the amelioration of K+ loss from the cell by regulating (both directly and indirectly) K+ efflux channels... - Tg2576 cortical neurons that express human Ab are susceptible to extracellular A?-induced, K+ efflux dependent neurodegenerationShannon Ray
NeuroRepair Group, Menzies Research Institute, University of Tasmania, Hobart, Tasmania, Australia
PLoS ONE 6:e19026. 2011..Due to the slowly progressive nature of the disease, it is likely that neurons are exposed to sublethal concentrations of both intracellular and extracellular A? for extended periods of time... - Endomembrane Ca2+-ATPases play a significant role in virus-induced adaptation to oxidative stressSergey Shabala
School of Agricultural Science, University of Tasmania, Hobart, TAS, Australia
Plant Signal Behav 6:1053-6. 2011.... - Ion transport and osmotic adjustment in Escherichia coli in response to ionic and non-ionic osmoticaLana Shabala
School of Agricultural Science and Tasmanian Institute of Agricultural Research, University of Tasmania, Private Bag 54, Hobart, TAS 7001, Australia
Environ Microbiol 11:137-48. 2009.... - Oscillations in plant membrane transport: model predictions, experimental validation, and physiological implicationsSergey Shabala
School of Agricultural Science, University of Tasmania, Hobart, Australia
J Exp Bot 57:171-84. 2006..The possible physiological role of such oscillations is discussed in the context of plant adaptive responses to salinity, temperature, osmotic, hypoxia, and pH stresses... - Listeria innocua and Lactobacillus delbrueckii subsp. bulgaricus employ different strategies to cope with acid stressLana Shabala
Australian Food Safety Centre of Excellence, School of Agricultural Science, University of Tasmania, Hobart, TAS 7001, Australia
Int J Food Microbiol 110:1-7. 2006..While L. innocua expels protons to maintain a constant pHi, L. delbrueckii subsp. bulgaricus allows proton entry after acidic treatment so that pHi follows pHex... - Osmotic adjustment and requirement for sodium in marine protist thraustochytridLana Shabala
School of Agricultural Science, University of Tasmania, Private Bag 54, Hobart, TAS 7001, Australia
Environ Microbiol 11:1835-43. 2009..Altogether, these data demonstrate the evidence for turgor regulation in thraustochytrids and suggest that these cells may be grown in the absence of sodium providing that cell turgor is adjusted by some other means... - Effect of secondary metabolites associated with anaerobic soil conditions on ion fluxes and electrophysiology in barley rootsJiayin Pang
School of Agricultural Science and Tasmanian Institute of Agricultural Research, University of Tasmania, Hobart, Tasmania 7001, Australia
Plant Physiol 145:266-76. 2007..We also suggest that plant tolerance to these secondary metabolites could be considered a useful trait in breeding programs... - Cyclopropane fatty acids improve Escherichia coli survival in acidified minimal media by reducing membrane permeability to H+ and enhanced ability to extrude H+Lana Shabala
Food Safety Centre, Tasmanian Institute of Agricultural Research, School of Agricultural Science, University of Tasmania, Private Bag 54, Hobart, TAS 7001, Australia
Res Microbiol 159:458-61. 2008..The data suggest increased proton permeability and decreased ability to extrude H+ in the absence of CFA, and they support the hypothesis that CFAs protect E. coli in acidic environments by decreasing membrane permeability to H+... - Salinity-induced ion flux patterns from the excised roots of Arabidopsis sos mutantsLana Shabala
School of Agricultural Science, University of Tasmania, 252-21, 7001, Hobart, TAS, Australia
Planta 222:1041-50. 2005..Our work shows that in planta studies are essential for understanding the functional genomics of plant salt tolerance... - Plasma membrane Ca²+ transporters mediate virus-induced acquired resistance to oxidative stressSergey Shabala
School of Agricultural Science, Menzies Research Institute, University of Tasmania, Private Bag 54, Hobart, TAS 7001, Australia
Plant Cell Environ 34:406-17. 2011..Taken together, our results suggest a high degree of crosstalk between UV and pathogen-induced oxidative stresses, and highlight the crucial role of Ca²+ efflux systems in acquired resistance to oxidative stress in plants... - Effect of divalent cations on ion fluxes and leaf photochemistry in salinized barley leavesSergey Shabala
School of Agricultural Science, University of Tasmania, Hobart, Australia
J Exp Bot 56:1369-78. 2005.... - The native copper- and zinc-binding protein metallothionein blocks copper-mediated Abeta aggregation and toxicity in rat cortical neuronsRoger S Chung
NeuroRepair Group, Menzies Research Institute, University of Tasmania, Hobart, Australia
PLoS ONE 5:e12030. 2010..A major pathological hallmark of AD is the deposition of insoluble extracellular beta-amyloid (Abeta) plaques. There are compelling data suggesting that Abeta aggregation is catalysed by reaction with the metals zinc and copper... - Plasma membrane H+ and K+ transporters are involved in the weak-acid preservative response of disparate food spoilage yeastsNeil Macpherson
Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK
Microbiology 151:1995-2003. 2005..bailii and S. cerevisiae share hitherto unsuspected adaptive responses at the level of plasma membrane ion transport... - Role of a mitogen-activated protein kinase cascade in ion flux-mediated turgor regulation in fungiRoger R Lew
Department of Biology, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
Eukaryot Cell 5:480-7. 2006..Our results demonstrate that a MAP kinase cascade regulates ion transport, activation of the H(+)-ATPase, and net K(+) and Cl(-) uptake during turgor regulation. Other pathways regulating turgor must also exist... - Calcium efflux as a component of the hypersensitive response of Nicotiana benthamiana to Pseudomonas syringaeLev G Nemchinov
USDA ARS, Plant Sciences Institute, Molecular Plant Pathology Laboratory, Beltsville, MD 20705, USA
Plant Cell Physiol 49:40-6. 2008..Accordingly, we propose that the existing model of HR should be amended to include a PM Ca(2+) ATP pump as an important component of the HR to pathogens in plants...