Petra Wuennenberg

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The putative two-pore Ca(2+) channel TPC1 has been suggested to be involved in responses to abiotic and biotic stresses. We show that AtTPC1 co-localizes with the K(+)-selective channel AtTPK1 in the vacuolar membrane. Loss of AtTPC1 abolished Ca(2+)-activated slow vacuolar (SV) currents, which were increased in AtTPC1-over-expressing Arabidopsis compared(More)
Singlet oxygen is reported to have the most potent damaging effect upon the photosynthetic machinery. Usually this reactive oxygen molecule acts in concert with other ROS types under stressful conditions. To understand the specific role of singlet oxygen we took advantage of the conditional flu mutant of Arabidopsis thaliana. In flu, the negative feedback(More)
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