SLAH3-type anion channel expressed in poplar secretory epithelia operates in calcium kinase CPK-autonomous manner

The New Phytologist
Mario JaborskyRainer Hedrich

Abstract

Extrafloral nectaries secrete a sweet sugar cocktail that lures predator insects for protection from foraging herbivores. Apart from sugars and amino acids, the nectar contains the anions chloride and nitrate. Recent studies with Populus have identified a type of nectary covered by apical bipolar epidermal cells, reminiscent of the secretory brush border epithelium in animals. Border epithelia operate transepithelial anion transport, which is required for membrane potential and/or osmotic adjustment of the secretory cells. In search of anion transporters expressed in extrafloral nectaries, we identified PttSLAH3 (Populus tremula × Populus tremuloides SLAC1 Homologue3), an anion channel of the SLAC/SLAH family. When expressed in Xenopus oocytes, PttSLAH3 displayed the features of a voltage-dependent anion channel, permeable to both nitrate and chloride. In contrast to the Arabidopsis SLAC/SLAH family members, the poplar isoform PttSLAH3 is independent of phosphorylation activation by protein kinases. To understand the basis for the autonomous activity of the poplar SLAH3, we generated and expressed chimera between kinase-independent PttSLAH3 and kinase-dependent Arabidopsis AtSLAH3. We identified the N-terminal tail and, to a le...Continue Reading

References

Dec 1, 1994·The Journal of General Physiology·J Dietrich, M Lindau
Jul 23, 1996·Proceedings of the National Academy of Sciences of the United States of America·D BeckerR Hedrich
Dec 21, 2002·The Plant Journal : for Cell and Molecular Biology·Katharina LangerRainer Hedrich
Mar 5, 2004·The Plant Journal : for Cell and Molecular Biology·Katharina LangerRainer Hedrich
Mar 9, 2005·Proceedings of the National Academy of Sciences of the United States of America·Victor LevchenkoRainer Hedrich
Sep 27, 2006·Nucleic Acids Research·Hussam H Nour-EldinBarbara A Halkier
Mar 27, 2007·Cellular Microbiology·Daniel E Voth, Robert A Heinzen
Mar 29, 2007·Nucleic Acids Research·Fernando Geu-FloresBarbara A Halkier
Jun 16, 2007·BMJ : British Medical Journal·Emma Wicks
Dec 15, 2007·BMJ : British Medical Journal·Jane C DaviesAndrew Bush
Jan 24, 2009·Annals of the New York Academy of Sciences·Lori FeinshreiberIlana Lotan
Jun 11, 2009·The Journal of Biological Chemistry·Dietmar GeigerRainer Hedrich
Oct 29, 2009·Journal of Experimental Botany·Jeffrey M RuhlmannClay J Carter
Dec 4, 2009·Proceedings of the National Academy of Sciences of the United States of America·Dietmar GeigerRainer Hedrich
Dec 4, 2009·Proceedings of the National Academy of Sciences of the United States of America·Sung Chul LeeSheng Luan
Jan 8, 2010·Annals of Botany·A E Vassilyev
Apr 14, 2010·Proceedings of the National Academy of Sciences of the United States of America·D GeigerR Hedrich
Jul 16, 2010·The Plant Journal : for Cell and Molecular Biology·Stefan MeyerRainer Hedrich
Oct 29, 2010·Nature·Yu-Hang ChenWayne A Hendrickson
Dec 29, 2010·Proceedings of the National Academy of Sciences of the United States of America·Pawel GajdanowiczIngo Dreyer
Feb 25, 2011·Trends in Plant Science·Martin Heil
Mar 3, 2012·Trends in Plant Science·M Rob G RoelfsemaDietmar Geiger
May 11, 2012·Plant Physiology·María Escalante-PérezPeter Ache
Jun 13, 2012·Proceedings of the National Academy of Sciences of the United States of America·Benjamin BrandtJulian I Schroeder
Aug 31, 2012·Molecular Plant·Sönke ScherzerRainer Hedrich
Oct 18, 2012·Physiological Reviews·Rainer Hedrich
Dec 12, 2012·Frontiers in Plant Science·Ingo DreyerDietmar Geiger
Jan 15, 2013·Molecular Plant·Patrick MummRainer Hedrich
Mar 5, 2013·The Plant Journal : for Cell and Molecular Biology·Dennis ImesRainer Hedrich
May 9, 2013·Nature Communications·Alexis De AngeliEnrico Martinoia

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Citations

Jul 20, 2017·The New Phytologist·Rainer Hedrich, Dietmar Geiger
Feb 11, 2021·International Journal of Molecular Sciences·Elsa RonzierTou Cheu Xiong
Jul 19, 2017·Plant Science : an International Journal of Experimental Plant Biology·Rahul RoyClay J Carter
May 1, 2021·International Journal of Molecular Sciences·Yunyou NanYajun Gao

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