%0 Journal Article %1 RN960 %A Scherzer, S. %A Böhm, J. %A Huang, S. G. %A Iosip, A. L. %A Kreuzer, I. %A Becker, D. %A Heckmann, M. %A Al-Rasheid, K. A. S. %A Dreyer, I. %A Hedrich, R. %D 2022 %J Current Biology %K carnivorous life-style myOwn %N 19 %P 4255-+ %R 10.1016/j.cub.2022.08.051 %T A unique inventory of ion transporters poises the Venus flytrap to fast-propagating action potentials and calcium waves %U /brokenurl#<Go to ISI>://WOS:000898422800005 %V 32 %X Since the 19th century, it has been known that the carnivorous Venus flytrap is electrically excitable. Never-theless, the mechanism and the molecular entities of the flytrap action potential (AP) remain unknown. When entering the electrically excitable stage, the trap expressed a characteristic inventory of ion transporters, among which the increase in glutamate receptor GLR3.6 RNA was most pronounced. Trigger hair stimulation or glutamate application evoked an AP and a cytoplasmic Ca2+ transient that both propagated at the same speed from the site of induction along the entire trap lobe surface. A priming Ca2+ moiety entering the cytoplasm in the context of the AP was further potentiated by an organelle-localized calcium-induced calcium release (CICR)-like system prolonging the Ca2+ signal. While the Ca2+ transient persisted, SKOR K+ channels and AHA H+-ATPases repolarized the AP already. By counting the number of APs and long-lasting Ca2+ transients, the trap directs the different steps in the carnivorous plant's hunting cycle.

@article{RN960, abstract = {Since the 19th century, it has been known that the carnivorous Venus flytrap is electrically excitable. Never-theless, the mechanism and the molecular entities of the flytrap action potential (AP) remain unknown. When entering the electrically excitable stage, the trap expressed a characteristic inventory of ion transporters, among which the increase in glutamate receptor GLR3.6 RNA was most pronounced. Trigger hair stimulation or glutamate application evoked an AP and a cytoplasmic Ca2+ transient that both propagated at the same speed from the site of induction along the entire trap lobe surface. A priming Ca2+ moiety entering the cytoplasm in the context of the AP was further potentiated by an organelle-localized calcium-induced calcium release (CICR)-like system prolonging the Ca2+ signal. While the Ca2+ transient persisted, SKOR K+ channels and AHA H+-ATPases repolarized the AP already. By counting the number of APs and long-lasting Ca2+ transients, the trap directs the different steps in the carnivorous plant's hunting cycle.}, added-at = {2024-02-14T14:38:32.000+0100}, author = {Scherzer, S. and Böhm, J. and Huang, S. G. and Iosip, A. L. and Kreuzer, I. and Becker, D. and Heckmann, M. and Al-Rasheid, K. A. S. and Dreyer, I. and Hedrich, R.}, biburl = {https://www.bibsonomy.org/bibtex/2eba38b97a43e8a7d231dba7f853e9311/rainerhedrich_2}, doi = {10.1016/j.cub.2022.08.051}, interhash = {3fcfa14cbfd3adac765ffe50d4258dd2}, intrahash = {eba38b97a43e8a7d231dba7f853e9311}, issn = {0960-9822}, journal = {Current Biology}, keywords = {carnivorous life-style myOwn}, note = {7a4iu Times Cited:14 Cited References Count:54}, number = 19, pages = {4255-+}, timestamp = {2024-02-14T14:38:32.000+0100}, title = {A unique inventory of ion transporters poises the Venus flytrap to fast-propagating action potentials and calcium waves}, type = {Journal Article}, url = {/brokenurl#<Go to ISI>://WOS:000898422800005}, volume = 32, year = 2022 }