Finding a right place to cut: How katanin is targeted to cellular severing sites
Microtubule severing by katanin plays key roles in generating various array patterns of dynamic microtubules, while also responding to developmental and environmental stimuli. Quantitative imaging and molecular genetic analyses have uncovered that dysfunction of microtubule severing in plant cells l...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Cambridge University Press
2022-01-01
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| Series: | Quantitative Plant Biology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S2632882822000029/type/journal_article |
| _version_ | 1811155720376156160 |
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| author | Masayoshi Nakamura Noriyoshi Yagi Takashi Hashimoto |
| author_facet | Masayoshi Nakamura Noriyoshi Yagi Takashi Hashimoto |
| author_sort | Masayoshi Nakamura |
| collection | DOAJ |
| description | Microtubule severing by katanin plays key roles in generating various array patterns of dynamic microtubules, while also responding to developmental and environmental stimuli. Quantitative imaging and molecular genetic analyses have uncovered that dysfunction of microtubule severing in plant cells leads to defects in anisotropic growth, division and other cell processes. Katanin is targeted to several subcellular severing sites. Intersections of two crossing cortical microtubules attract katanin, possibly by using local lattice deformation as a landmark. Cortical microtubule nucleation sites on preexisting microtubules are targeted for katanin-mediated severing. An evolutionary conserved microtubule anchoring complex not only stabilises the nucleated site, but also subsequently recruits katanin for timely release of a daughter microtubule. During cytokinesis, phragmoplast microtubules are severed at distal zones by katanin, which is tethered there by plant-specific microtubule-associated proteins. Recruitment and activation of katanin are essential for maintenance and reorganisation of plant microtubule arrays. |
| first_indexed | 2024-04-10T04:38:14Z |
| format | Article |
| id | doaj.art-18cda14c29404d13ac8b8d29b2b8c48a |
| institution | Directory Open Access Journal |
| issn | 2632-8828 |
| language | English |
| last_indexed | 2024-04-10T04:38:14Z |
| publishDate | 2022-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Quantitative Plant Biology |
| spelling | doaj.art-18cda14c29404d13ac8b8d29b2b8c48a2023-03-09T12:43:35ZengCambridge University PressQuantitative Plant Biology2632-88282022-01-01310.1017/qpb.2022.2Finding a right place to cut: How katanin is targeted to cellular severing sitesMasayoshi Nakamura0https://orcid.org/0000-0002-7107-4942Noriyoshi Yagi1Takashi Hashimoto2https://orcid.org/0000-0002-8398-5479Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, JapanInstitute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, JapanDivision of Biological Sciences, Nara Institute of Science and Technology, Ikoma, JapanMicrotubule severing by katanin plays key roles in generating various array patterns of dynamic microtubules, while also responding to developmental and environmental stimuli. Quantitative imaging and molecular genetic analyses have uncovered that dysfunction of microtubule severing in plant cells leads to defects in anisotropic growth, division and other cell processes. Katanin is targeted to several subcellular severing sites. Intersections of two crossing cortical microtubules attract katanin, possibly by using local lattice deformation as a landmark. Cortical microtubule nucleation sites on preexisting microtubules are targeted for katanin-mediated severing. An evolutionary conserved microtubule anchoring complex not only stabilises the nucleated site, but also subsequently recruits katanin for timely release of a daughter microtubule. During cytokinesis, phragmoplast microtubules are severed at distal zones by katanin, which is tethered there by plant-specific microtubule-associated proteins. Recruitment and activation of katanin are essential for maintenance and reorganisation of plant microtubule arrays.https://www.cambridge.org/core/product/identifier/S2632882822000029/type/journal_articlekataninmicrotubule severingplant cells |
| spellingShingle | Masayoshi Nakamura Noriyoshi Yagi Takashi Hashimoto Finding a right place to cut: How katanin is targeted to cellular severing sites Quantitative Plant Biology katanin microtubule severing plant cells |
| title | Finding a right place to cut: How katanin is targeted to cellular severing sites |
| title_full | Finding a right place to cut: How katanin is targeted to cellular severing sites |
| title_fullStr | Finding a right place to cut: How katanin is targeted to cellular severing sites |
| title_full_unstemmed | Finding a right place to cut: How katanin is targeted to cellular severing sites |
| title_short | Finding a right place to cut: How katanin is targeted to cellular severing sites |
| title_sort | finding a right place to cut how katanin is targeted to cellular severing sites |
| topic | katanin microtubule severing plant cells |
| url | https://www.cambridge.org/core/product/identifier/S2632882822000029/type/journal_article |
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