{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,29]],"date-time":"2023-10-29T10:46:34Z","timestamp":1698576394450},"reference-count":29,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[1997,11,7]],"date-time":"1997-11-07T00:00:00Z","timestamp":878860800000},"content-version":"vor","delay-in-days":220,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["FEBS Letters"],"published-print":{"date-parts":[[1997,4]]},"abstract":"<jats:p>Cytosolic Ca<jats:sup>2+<\/jats:sup> activity ([Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub>) and membrane potential were measured simultaneously in the unicellular green alga <jats:italic>Eremosphaera viridis<\/jats:italic>. Steady state [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub> was about 160 nM. A \u2018light\u2010off\u2019 stimulus induced a transient elevation of [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub> ([Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub> spike) in parallel with a transient hyperpolarization of the plasma membrane. Caffeine and Sr<jats:sup>2+<\/jats:sup>, known to release Ca<jats:sup>2+<\/jats:sup> from intracellular stores in animal cells, induced repetitive [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub> spikes in <jats:italic>Eremosphaera<\/jats:italic> which were always accompanied by parallel repetitive transient hyperpolarizations. These transient hyperpolarizations could be used as an indicator for [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub> spikes. Repetitive [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub> spikes in <jats:italic>Eremosphaera<\/jats:italic> were similar to repetitive [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub> spikes in excitable animal cells. The mechanisms underlying these [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>cy<\/jats:sub> oscillations seem to be comparable in animal and plant cells.<\/jats:p>","DOI":"10.1016\/s0014-5793(97)00231-7","type":"journal-article","created":{"date-parts":[[2002,7,25]],"date-time":"2002-07-25T17:54:24Z","timestamp":1027619664000},"page":"390-393","source":"Crossref","is-referenced-by-count":24,"title":["Repetitive Ca<sup>2+<\/sup> spikes in a unicellular green alga"],"prefix":"10.1002","volume":"405","author":[{"given":"C.S.","family":"Bauer","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C.","family":"Plieth","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"U.-P.","family":"Hansen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Sattelmacher","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W.","family":"Simonis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Sch\u00f6nknecht","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[1997,11,7]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0092-8674(95)90179-5"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0065-2296(08)60056-7"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.cb.06.110190.003435"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.ph.55.030193.002235"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.ph.56.030194.001501"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00634478"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.87.23.9305"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.7569925"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.2307\/3870096"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0092-8674(00)81234-9"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00392988"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1152\/physrev.1994.74.3.595"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/0014-5793(87)80251-X"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/0014-5793(89)81739-9"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/0014-5793(90)81153-F"},{"key":"e_1_2_6_17_1","unstructured":"Plieth C. 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