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Comment
. 2023 Jun 26;35(7):2447-2448.
doi: 10.1093/plcell/koad104.

Charting the course of asymmetric cell division in maize: The crucial role of OPAQUE1 in guiding the phragmoplast

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Comment

Charting the course of asymmetric cell division in maize: The crucial role of OPAQUE1 in guiding the phragmoplast

Arpita Yadav. Plant Cell. .
No abstract available

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Figures

Figure.
Figure.
Role of O1 in phragmoplast guidance. The pre-prophase band marks the inicipient cortical division site, followed by markers for the division site such as TAN1 and POK proteins also present in the phragmoplast. Actin filaments and myosin VIII direct the phragmoplast to the division site in wild-type cells (Wu and Bezanilla 2014). The phragmoplast keeps growing when it encounters the cortex, and contacts are maintained by microtubules (Bellinger et al. 2021). POK, TAN, and O1 act as mediators as the cell plate fuses with the parental plasma membrane in the wild type along the established division site. In o1 mutants, the phragmoplast becomes misguided following initial contact, leading to aberrant division planes. Adapted from Nan et al. (2023), Figure 9.

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References

    1. Bellinger MA, Uyehara AN, Allsman L, Martinez P, McCarthy MC, Rasmussen CG. Cortical microtubules contribute to division plane positioning during telophase in maize. Plant Cell. 2023:35(5):1496–1512. 10.1093/plcell/koad033 - DOI - PMC - PubMed
    1. Gallagher K, Smith LG. Discordia mutations specifically misorient asymmetric cell divisions during development of the maize leaf epidermis. Development. 1999:126(20):4623–4633. 10.1242/dev.126.20.4623 - DOI - PubMed
    1. Lipka E, Gadeyne A, Stöckle D, Zimmermann S, De Jaeger G, Ehrhardt DW, Kirik V, Van Damme D, Müller S. The phragmoplast-orienting kinesin-12 class proteins translate the positional information of the preprophase band to establish the cortical division zone in Arabidopsis thaliana. Plant Cell. 2014:26(6):2617–2632. 10.1105/tpc.114.124933 - DOI - PMC - PubMed
    1. Nan Q, Liang H, Mendoza J, Liu L, Fulzele A, Wright A, Bennett EJ, Rasmussen CG, Facette MR. The OPAQUE1/DISCORDIA2 myosin XI is required for phragmoplast guidance during asymmetric cell division in maize. Plant Cell. 2023:35(7):2678–2693. 10.1093/plcell/koad099 - DOI - PMC - PubMed
    1. Smertenko A. Phragmoplast expansion: the four-stroke engine that powers plant cytokinesis. Curr Opin Plant Biol. 2018:46:130–137. 10.1016/j.pbi.2018.07.011 - DOI - PubMed