Article
Vacuolar CBL-CIPK12 Ca(2+)-sensor-kinase complexes are required for polarized pollen tube growth.
Current biology : CB - 1 Jun 2015
Steinhorst Leonie, Mähs Anette, Ischebeck Till, Zhang Chunxia, Zhang Xinxin, Arendt Sibylle, Schültke Stefanie, Heilmann Ingo, Kudla Jörg
Abstract excerpt
Polarized tip growth is a fundamental process of specialized eukaryotic cells like neuronal axons, fungal hyphae, and plant root hairs and pollen tubes. In pollen tubes, a tip-focused oscillating Ca(2+) gradient governs ions fluxes, vesicle transport, and cytoskeleton dynamics to ensure proper polarized cell growth [1, 2]. While a crucial role of vacuolar Ca(2+) signaling is established for cellular movements...
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