Lucus Andrew Staehelin

From Wikitia
Jump to navigation Jump to search
Lucas Andrew Staehelin
Add a Photo
Born (1939-02-10) February 10, 1939 (age 85)
Sydney, Australia
CitizenshipAustralia
Known forCell biology, photosynthesis, electron microscopy
TitleProfessor emeritus
Academic background
Alma materSwiss Federal Institute of Technology
Academic work
InstitutionsUniversity of Colorado Boulder

Lucas Andrew Staehelin (born 10 February 1939) is a retired Swiss-American cell biologist. He developed cryofixation methods and pioneered their use for preserving cellular structures for electron microscope studies.[1][2] Application of these methods to the analysis of plant, animal and bacterial cells brought insights into the nanoscale architecture and functional organization of membranous Organelle and Cytoskeleton. Staehelin taught undergraduate and graduate courses in cellular and molecular biology at the University of Colorado Boulder.

Early life and education

Staehelin was born in Sydney, Australia on February 10, 1939,[3] the son of Lucas and Isobel Staehelin. In 1948 he moved to Switzerland where he attended the Gymnasium in Bern. He studied natural sciences as an undergraduate at the ETH Zurich from 1959 to 1963, where he earned his doctorate in plant cell biology in 1966, studying in the laboratory of Professor Kurt Mühlethaler.[4] From 1966 to 1969 he worked as a scientist at the Physics and Engineering Laboratory of the Department of Scientific and Industrial Research (New Zealand)|Department of Scientific and Industrial Research in New Zealand. He was a postdoctoral fellow from 1969 to 1970 at Harvard University.

Career

Staehelin became an assistant professor in the Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, in 1970, was promoted to associate professor in 1973, to full professor in 1978, and to professor emeritus in 2006. He held visiting professorships at University of Freiburg (1978), Swiss Federal Institute of Technology (1984, 1992), and University of Melbourne (1998). He has authored and co-authored more than 300 scientific publications (H-index).[5][6]

Research

Staehelin's research focused on using cryofixation methods to produce improved images of cellular structures by means of freeze-fracture, thin section and immunolabeling electron microscopy, and by electron tomography techniques.[2] His studies of photosynthetic membranes led to the characterization of differences in structure and function of grana and stroma Thylakoid|thylakoid membranes,[7] of Chlorosome,[8] and the attachment of plastoglobules to thylakoids.[9] Vitrification of plant cells using propane-jet freezing led to the discovery that cellulose fibrils were synthesized by plasma membrane-associated rosette particle complexes,[10] and the demonstration that vesicle-mediated secretion and membrane recycling in turgid cells involves characteristic, transient membrane configurations.[11] High pressure freezing of intact plant tissues led to new models of plant cytokinesis, first as seen in thin section images[12][13] and then by electron tomography. These studies led to the discovery of the cell plate assembly matrix within which the assembly of the cell plate from vesicles occurs by previously unknown mechanisms.[14][15] Electron tomography analysis enabled his group to produce nanoscale models of endoplasmic reticulum, Golgi apparatus and trans Golgi network membranes[16][17][18][2] The Golgi matrix/scaffold was shown to originate on COPII vesicles and to capture passing Golgi to mediate ER-Golgi vesicle transfer as postulated by the stop-pluck-and-go hypothesis of Golgi trafficking.[19]

Awards

  • Recipient of the Alexander von Humboldt Research Award (1977)[20]
  • Member of the German National Academy of Sciences Leopoldina (1994)[21]
  • Fellow of the American Association for the Advancement of Science (2005)[22]
  • Recipient of the Haselkorn Scholar Award, University of Chicago (2006)[23]
  • First named Fellow of the American Society of Plant Physiologists (2007)[23]

References

  1. ↑ Gilkey, John C.; Staehelin, L. Andrew (1986). "Advances in ultrarapid freezing for the preservation of cellular ultrastructure". Journal of Electron Microscopy Technique. 3 (2): 177–210. doi:10.1002/jemt.1060030206.
  2. ↑ 2.0 2.1 2.2 Cheung, Alice Y; Cosgrove, Daniel J; Hara-Nishimura, Ikuko; Jürgens, Gerd; Lloyd, Clive; Robinson, David G; Staehelin, L Andrew; Weijers, Dolf (2021-09-15). "A rich and bountiful harvest: key discoveries in plant cell biology". The Plant Cell. 34: 53–71. doi:10.1093/plcell/koab234.
  3. ↑ "Lucas Andrew Staehelin". prabook.com. Retrieved 2021-12-17.
  4. ↑ "Chemistry Tree - L. Andrew Staehelin".{{cite web}}: CS1 maint: url-status (link)
  5. ↑ "L. Andrew Staehelin, University of Colorado Boulder, Department of Molecular, Cellular, and Developmental Biology". ResearchGate. Retrieved 2021-12-17.
  6. ↑ "Web of Science". www.webofscience.com. Retrieved 2022-01-26.
  7. ↑ Staehelin, L. Andrew (2003-04-01). "Chloroplast structure: from chlorophyll granules to supra-molecular architecture of thylakoid membranes". Photosynthesis Research. 76 (1): 185–96. doi:10.1023/A:1024994525586.
  8. ↑ Staehelin, L. Andrew; Golecki, Jochen R.; Drews, Gerhart (1980-04-01). "Supramolecular organization of chlorosomes (chlorobium vesicles) and of their membrane attachment sites in Chlorobium Limicola". Biochimica et Biophysica Acta (BBA) - Bioenergetics. 589 (1): 30–45. doi:10.1016/0005-2728(80)90130-9.
  9. ↑ Rottet, Sarah; Besagni, Céline; Kessler, Felix (2015-09-01). "The role of plastoglobules in thylakoid lipid remodeling during plant development". Biochimica et Biophysica Acta (BBA) - Bioenergetics. SI: Chloroplast Biogenesis. 1847 (9): 889–99. doi:10.1016/j.bbabio.2015.02.002.
  10. ↑ Giddings, T H, Jr; Brower, D L; Staehelin, L A (1980-02-01). "Visualization of particle complexes in the plasma membrane of Micrasterias denticulata associated with the formation of cellulose fibrils in primary and secondary cell walls". Journal of Cell Biology. 84 (2): 327–339. doi:10.1083/jcb.84.2.327.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  11. ↑ Staehelin, L. A.; Chapman, R. L. (1987-05-01). "Secretion and membrane recycling in plant cells: novel intermediary structures visualized in ultrarapidly frozen sycamore and carrot suspension-culture cells". Planta. 171 (1): 43–57. doi:10.1007/BF00395066.
  12. ↑ Samuels, A L; Giddings, T H, Jr; Staehelin, L A (1995-09-15). "Cytokinesis in tobacco BY-2 and root tip cells: a new model of cell plate formation in higher plants". Journal of Cell Biology. 130 (6): 1345–1357. doi:10.1083/jcb.130.6.1345.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  13. ↑ Otegui, Marisa; Staehelin, L. Andrew (2000-06-01). "Syncytial-Type Cell Plates: A Novel Kind of Cell Plate Involved in Endosperm Cellularization of Arabidopsis". The Plant Cell. 12 (6): 933–947. doi:10.1105/tpc.12.6.933.
  14. ↑ Otegui, M. S.; Mastronarde, D. N.; Kang, B. H.; Bednarek, S. Y.; Staehelin, L. A. (September 2001). "Three-dimensional analysis of syncytial-type cell plates during endosperm cellularization visualized by high resolution electron tomography". The Plant Cell. 13 (9): 2033–2051. doi:10.1105/tpc.13.9.2033.
  15. ↑ Otegui, Marisa S. (2011), Popper, Zoë A. (ed.), "Electron Tomography and Immunogold Labelling as Tools to Analyse De Novo Assembly of Plant Cell Walls", The Plant Cell Wall: Methods and Protocols, Methods in Molecular Biology, Totowa, NJ: Humana Press, vol. 715, pp. 123–140, doi:10.1007/978-1-61779-008-9_9, ISBN 978-1-61779-008-9, retrieved 2021-12-16
  16. ↑ Staehelin, L. Andrew; Kang, Byung-Ho (2008-08-01). "Nanoscale Architecture of Endoplasmic Reticulum Export Sites and of Golgi Membranes as Determined by Electron Tomography". Plant Physiology. 147 (4): 1454–1468. doi:10.1104/pp.108.120618.
  17. ↑ Kang, Byung-Ho; Nielsen, Erik; Preuss, Mary Lai; Mastronarde, David; Staehelin, L. Andrew (2011). "Electron Tomography of RabA4b- and PI-4Kβ1-Labeled Trans Golgi Network Compartments in Arabidopsis". Traffic. 12 (3): 313–329. doi:10.1111/j.1600-0854.2010.01146.x.
  18. ↑ Donohoe, Bryon S.; Kang, Byung-Ho; Gerl, Mathias J.; Gergely, Zachary R.; McMichael, Colleen M.; Bednarek, Sebastian Y.; Staehelin, L. Andrew (2013). "Cis-Golgi Cisternal Assembly and Biosynthetic Activation Occur Sequentially in Plants and Algae". Traffic. 14 (5): 551–567. doi:10.1111/tra.12052.
  19. ↑ Nebenführ, Andreas; Gallagher, Larry A.; Dunahay, Terri G.; Frohlick, Jennifer A.; Mazurkiewicz, Anna M.; Meehl, Janet B.; Staehelin, L. Andrew (1999-12-01). "Stop-and-Go Movements of Plant Golgi Stacks Are Mediated by the Acto-Myosin System1". Plant Physiology. 121 (4): 1127–1141. doi:10.1104/pp.121.4.1127.
  20. ↑ "Singleview - Alexander von Humboldt-Stiftung".{{cite web}}: CS1 maint: url-status (link)
  21. ↑ "List of Members".{{cite web}}: CS1 maint: url-status (link)
  22. ↑ "Historic Fellows". American Association for the Advancement of Science. Retrieved 2021-12-17.
  23. ↑ 23.0 23.1 "CU-Boulder's Andrew Staehelin Named First Ever Fellow Of American Society Of Plant Biologists". CU Boulder Today. 2007-07-25. Retrieved 2021-12-17.

External links

Add External links

This article "Lucus Andrew Staehelin" is from Wikipedia. The list of its authors can be seen in its historical. Articles taken from Draft Namespace on Wikipedia could be accessed on Wikipedia's Draft Namespace.

Retrieved from "https://wikitia.com/index.php?title=Lucus_Andrew_Staehelin&oldid=138888"