The development of antimalarial drugs involving novel mechanisms of action is of imminent importance. Several potential drug candidates of synthetic and natural origin as well as their combination therapies are currently being evaluated for their efficacy against drug-resistant strains of the parasite. Various plasmodial targets/pathways, such as the Purine salvage pathway, Pyrimidine biosynthesis pathway and also the processes in the apicoplast, have been identified and are being utilized for the discovery and development of novel antimalarial therapies. This article provides an overview of the latest developments in terms of cell and molecular biology that will improve the knowledge related to drug-resistant malaria and to new molecular targets.
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Protein Phosphatase 2A B'α and B'β promote pollen wall construction partially through BZR1-activated CEP1 in Arabidopsis.
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Ministry of Education Key Laboratory of Molecular and Cellular Biology; Hebei Research Center of the Basic Discipline of Cell Biology; Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation; Hebei Key Laboratory of Molecular and Cellular Biology; College of Life Sciences, Hebei Normal University, 050024 Shijiazhuang, China.
A well-constructed pollen wall is essential for pollen fertility, which relies on the contribution of tapetum. Our results demonstrate an essential role of the tapetum-expressed protein phosphatase 2A (PP2A) B'α and B'β in pollen wall formation. The b'aβ double mutant pollen grains harbored sticky remnants and tectum breakages, resulting in failed release.
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