Influence of calcium on blue-light-induced chloroplast movement in Lemna trisulca L.
作者： Monika Tlałka , Halina Gabryś
DOI: 10.1007/BF00198211
关键词: Chloroplast 、 EGTA 、 Intracellular 、 Biophysics 、 Trifluoperazine 、 Lemna trisulca 、 Cytochalasin B 、 Ionophore 、 Biology 、 Biochemistry 、 Calcium
摘要: The presence of calcium is essential for chloroplast movement induced by blue light in Lemna trisulca L. regulatory role was confirmed the inhibition cytochalasin B and trifluoperazine. concentration tissues modified ethylene glycol-bis(2-aminoethylether)-N,N,N′, N′-tetraacetic acid (EGTA), ionophore A23187 La3+. Only a long period incubation (12h) EGTA or La3+ caused distrubances movement. This indicates that influx not Those conditions dramatically changed internal concentration, either applications EGTA, La3+, markedly decreased amplitude response to blue-light pulses. demonstrates disturbances are observable only when stores affected Ca2+-antagonists. We suggest involved blue-light-induced derived from intracellular stores. addition Mg2+ buffer counteracted its effect, indicating Mg2+, as well Ca2+, might possibly be
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