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A.E. Walsby

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Haloquadratum walsbyi

Anthony Edward Walsby, BSc(Birm), PhD(Lond), FRS, is the Emeritus Professor of Microbiology at the School of Biological Sciences, University of Bristol.[citation needed]

He is a researcher in the fields of Algae, Cyanobacteria, lake ecology, gas vesicles/vacuoles and genetics, covering the European lakes and Baltic Sea.[1] He is noted for his discovery of Haloquadratum walsbyi in brine ponds on the Sinai Peninsula in 1980.[2] He was elected Fellow of the Royal Society, 11 March 1993.[3]

Specifically his research includes:

  • Gas vesicles of cyanobacteria: physiology; structure; molecular biology; ecology
  • The natural selection of gas vesicles in relation to depth of lakes and oceans
  • Population genetics of cyanobacteria using PCR on single filaments from lakes
  • The cyanobacterium Planktothrix rubescens in stratified lakes
  • Calculating the daily integrals of growth and photosynthesis in lakes

Selected publications

  • PubMed
  • Walsby, A.E. 1991. The mechanical properties of the Microcystis gas vesicle. Journal of General Microbiology 137, 2401–2408.
  • Walsby, A.E., Revsbech, N.P. & Griffel, D.H. 1992. The gas permeability coefficient of the cyanobacterial gas vesicle wall. Journal of General Microbiology 138, 837–845.
  • Buchholz, B.E.E., Hayes, P.K. & Walsby, A.E. 1993. The distribution of the outer gas vesicle protein, GvpC, on the Anabaena gas vesicle, and its ratio to GvpA. Journal of General Microbiology, 139, 2353–2363.
  • Walsby, A.E. 1994. Gas vesicles. Microbiological Reviews, 58, 94-144.
  • Kinsman, R., Walsby, A.E. & Hayes, P.K. 1995. GvpCs with reduced numbers of repeating sequence elements bind to and strengthen cyanobacterial gas vesicles. Molecular Microbiology, 17, 147–154.
  • McMaster, T.J., Miles, M.J. & Walsby, A.E. 1996. Direct observation of protein secondary structure in gas vesicles by atomic force microscopy. Biophysics Journal, 70, 2432–2436.
  • Walsby, A.E. & A. Avery. 1996. Measurement of filamentous cyanobacteria by image analysis. Journal of Microbiological Methods 26, 11–20.
  • Walsby, A.E. 1997. Numerical integration of phytoplankton through depth and time in a water column. New Phytologist, 136, 189–209.
  • Walsby, A.E., Hayes, P.K., Boje, R. & Stal, L.J. 1997. The selective advantage of buoyancy provided by gas vesicles for planktonic cyanobacteria in the Baltic Sea. New Phytologist, 136, 407–417.
  • Walsby, A.E., Avery, A. & Schanz, F. 1998. The critical pressures of gas vesicles in Planktothrix rubescens in relation to the depth of winter mixing in Lake Zurich, Switzerland. Journal of Plankton Research 20: 1357–1375.
  • Walsby, AE & Holland, DP. (2006) Sinking velocities of phytoplankton measured on a stable density gradient by laser scanning. Journal of the Royal Society Interface, The Royal Society, 3 (8), 429 - 439.
  • Dunton, PG, Mawby, WJ, Shaw, VA & Walsby, AE. (2006) Analysis of tryptic digests indicates regions of GvpC that bind to gas vesicles of Anabaena flos-aquae. Microbiology, Society for General Microbiology, 152 (6), 1661 - 1669.
  • Walsby, AE & Dunton, PG. (2006) Gas vesicles in actinomycetes? Trends in Microbiology, Elsevier, 14 (3), 99 - 100.
  • Walsby, AE. (2006) Gordon Elliott Fogg CBE, 26 April 1919 - 30 January 2005. Biographical Memoirs of Fellows of the Royal Society, Royal Society, 52, 97 - 116.
  • Walsby, AE, Schanz, F & Schmidt, M. (2006) The Burgundy-blood phenomenon: a model of buoyancy change explains autumnal waterblooms of Planktothrix rubescens in Lake Zurich. New Phytologist, Blackwell, 169 (1), 109 - 122.
  • Walsby, AE & Juttner, F. (2006) The uptake of amino acids by the cyanobacterium Planktothrix rubescens is stimulated by light at low irradiances. FEMS Microbiology Ecology, Blackwell, 58 (1), 14 - 22.
  • Walsby, AE. (2005) Archaea with square cells. Trends in Microbiology, 13, 193 - 195.
  • Dunton, PG & Walsby, AE. (2005) The diameter and critical collapse pressure of gas vesicles in Microcystis are correlated with GvpCs of different length. FEMS Letters, 247, 37 - 43.
  • Walsby, AE. (2005) Stratification by cyanobacteria in lakes: a dynamic buoyancy model indicates size limitations met by Planktothrix rubescens filaments. New Phytologist, Blackwell, 168 (2), 365 - 376.
  • Walsby, AE, Ng, G, Dunn, C & Davis, PA. (2004) Comparison of the depth where Planktothrix rubescens stratifies and the depth where the daily insolation supports its neutral buoyancy. New Phytologist, 162, 133 - 145.

References

  1. ^ "Details of Professor A. WALSBY" Ocean Expert, 2002-03-02
  2. ^ Walsby, A. E. (1980). "A square bacterium". Nature. 283: 69–71.
  3. ^ "Royal Society". The Independent. 13 March 1993. Archived from the original on 2012-11-10. Retrieved July 28, 2010.
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