Leica Science Lab - Tag : Pollen https://www.leica-microsystems.com//science-lab/tag/tags/pollen/show/Tag/ Article tagged with Pollen en-US https://www.leica-microsystems.com/20671 Confocal Microscopy MONENSIN SENSITIVITY1 (MON1)/CALCIUM CAFFEINE ZINC SENSITIVITY1 (CCZ1) Programmed cell death (PCD)-triggered degradation of plant tapetum is essential for microspore development and pollen coat formation; however, little is known about the cellular mechanism regulating tapetal PCD. Here, we demonstrate that Rab7-mediated vacuolar transport of tapetum degradation-related cysteine proteases is crucial for tapetal PCD and pollen development in Arabidopsis (Arabidopsis thaliana), with the following evidence: (1) The monensin sensitivity1 (mon1) mutants, which are defective in Rab7 activation, showed impaired male fertility due to a combined defect in both tapetum and male gametophyte development. https://www.leica-microsystems.com//science-lab/monensin-sensitivity1-mon1calcium-caffeine-zinc-sensitivity1-ccz1/ Mon, 22 Oct 2018 22:00:00 +0000