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- Jawaid, Muhammad ZakiUniv Calif Davis, Dept Phys & Astron, Davis, CA 95616 USA. (författare)
A biophysical model for plant cell plate maturation based on the contribution of a spreading force
- Artikel/kapitelEngelska2022
Förlag, utgivningsår, omfång ...
- 2021-11-27
- Oxford University Press (OUP),2022
- printrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:kth-310597
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-310597URI
- https://doi.org/10.1093/plphys/kiab552DOI
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- Språk:engelska
- Sammanfattning på:engelska
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Anmärkningar
- QC 20220405
- The late-stage onset of an "areal" spreading and stabilizing force is essential for regular plant cell plate development and maturation. Plant cytokinesis, a fundamental process of plant life, involves de novo formation of a "cell plate" partitioning the cytoplasm of dividing cells. Cell plate formation is directed by orchestrated delivery, fusion of cytokinetic vesicles, and membrane maturation to form a nascent cell wall by timely deposition of polysaccharides. During cell plate maturation, the fragile membrane network transitions to a fenestrated sheet and finally a young cell wall. Here, we approximated cell plate sub-structures with testable shapes and adopted the Helfrich-free energy model for membranes, including a stabilizing and spreading force, to understand the transition from a vesicular network to a fenestrated sheet and mature cell plate. Regular cell plate development in the model was possible, with suitable bending modulus, for a two-dimensional late stage spreading force of 2-6 pN/nm, an osmotic pressure difference of 2-10 kPa, and spontaneous curvature between 0 and 0.04 nm(-1). With these conditions, stable membrane conformation sizes and morphologies emerged in concordance with stages of cell plate development. To reach a mature cell plate, our model required the late-stage onset of a spreading/stabilizing force coupled with a concurrent loss of spontaneous curvature. Absence of a spreading/stabilizing force predicts failure of maturation. The proposed model provides a framework to interrogate different players in late cytokinesis and potentially other membrane networks that undergo such transitions. Callose, is a polysaccharide that accumulates transiently during cell plate maturation. Callose-related observations were consistent with the proposed model's concept, suggesting that it is one of the factors involved in establishing the spreading force.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Biologi Botanik hsv//swe
- NATURAL SCIENCES Biological Sciences Botany hsv//eng
- NATURVETENSKAP Biologi Cellbiologi hsv//swe
- NATURAL SCIENCES Biological Sciences Cell Biology hsv//eng
- NATURVETENSKAP Biologi Biokemi och molekylärbiologi hsv//swe
- NATURAL SCIENCES Biological Sciences Biochemistry and Molecular Biology hsv//eng
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Sinclair, RosalieUniv Calif Davis, Dept Plant Sci, Davis, CA 95616 USA. (författare)
- Bulone, VincentKTH,Glykovetenskap,Univ Adelaide, Sch Food Agr & Wine, Waite Campus, Adelaide, SA 5064, Australia.(Swepub:kth)u13o1auq (författare)
- Cox, Daniel L.Univ Calif Davis, Dept Phys & Astron, Davis, CA 95616 USA. (författare)
- Drakakaki, GeorgiaUniv Calif Davis, Dept Plant Sci, Davis, CA 95616 USA. (författare)
- Univ Calif Davis, Dept Phys & Astron, Davis, CA 95616 USA.Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA. (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Plant Physiology: Oxford University Press (OUP)188:2, s. 795-8060032-08891532-2548
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