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Cytoskeletal remodeling has a fundamental role, especially during transitional developmental stages when cells rapidly adopt new forms and roles, like gametogenesis, fertilization and concomitant embryogenesis and seed formation. KATANIN 1, a microtubule severing protein, fulfills a major regulatory mechanism of dynamic microtubule turnover in eukaryotes. Herein, we show that three well-established mutants, and collectively display lower fertility and seed set in Arabidopsis. These lower fertility and seed set rates of and mutants were correlated to abnormalities in the development of embryo proper and seed. Such phenotypes were rescued by transformation of mutants with functional construct. This study significantly expands the already broad functional repertoire of KATANIN 1 and unravels its new role in embryo and seed development. Thus, KATANIN 1 significantly contributes to the fertility and proper embryo and seed formation in Arabidopsis.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5418335 | PMC |
| http://dx.doi.org/10.3389/fpls.2017.00728 | DOI Listing |
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