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  1. Article ; Online: The flagellar length control system: exploring the physical biology of organelle size.

    Marshall, Wallace F

    Physical biology

    2023  Volume 20, Issue 2

    Abstract: How cells build and maintain dynamic structures of defined size is currently an important unsolved problem in quantitative cell biology. The flagella of the unicellular green ... ...

    Abstract How cells build and maintain dynamic structures of defined size is currently an important unsolved problem in quantitative cell biology. The flagella of the unicellular green alga
    MeSH term(s) Chlamydomonas reinhardtii/physiology ; Biological Transport ; Flagella/genetics ; Flagella/metabolism ; Organelle Size ; Biology
    Language English
    Publishing date 2023-01-24
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2133216-2
    ISSN 1478-3975 ; 1478-3967
    ISSN (online) 1478-3975
    ISSN 1478-3967
    DOI 10.1088/1478-3975/acb18d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book: Cilia / Pt. A

    Marshall, Wallace F.

    (Methods in enzymology ; 524)

    2013  

    Author's details ed. by Wallace F. Marshall
    Series title Methods in enzymology ; 524
    Cilia
    Collection Cilia
    Language English
    Size LIV, 397, [16] S. : Ill., graph. Darst.
    Edition 1. ed.
    Publisher Elsevier Acad. Press
    Publishing place Amsterdam u.a.
    Publishing country Netherlands
    Document type Book
    HBZ-ID HT017646823
    ISBN 978-0-12-397945-2 ; 0-12-397945-5
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    Se 222 524- verfügbar in Königswinter Königswinter

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  4. Book: Cilia / Pt. B

    Marshall, Wallace F.

    (Methods in enzymology ; 525)

    2013  

    Author's details ed. by Wallace F. Marshall
    Series title Methods in enzymology ; 525
    Cilia
    Collection Cilia
    Language English
    Size LVI, 422, [18] S. : Ill.
    Edition 1. ed.
    Publisher Elsevier Acad. Press
    Publishing place Amsterdam u.a.
    Publishing country Netherlands
    Document type Book
    HBZ-ID HT017659950
    ISBN 978-0-12-397944-5 ; 0-12-397944-7
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    Se 222 -525- verfügbar in Königswinter Königswinter

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  5. Article ; Online: Cell motility: Bioelectrical control of behavior without neurons.

    Larson, Ben T / Marshall, Wallace F

    Current biology : CB

    2024  Volume 34, Issue 4, Page(s) R137–R140

    Abstract: Single cells are capable of remarkably sophisticated, sometimes animal-like, behaviors. New work demonstrates bioelectric control of motility through the differential regulation of appendage movements in a unicellular organism that walks across surfaces ... ...

    Abstract Single cells are capable of remarkably sophisticated, sometimes animal-like, behaviors. New work demonstrates bioelectric control of motility through the differential regulation of appendage movements in a unicellular organism that walks across surfaces using leg-like bundles of cilia.
    MeSH term(s) Animals ; Neurons ; Cilia/physiology ; Movement ; Electrophysiological Phenomena ; Cell Movement
    Language English
    Publishing date 2024-02-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2024.01.019
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3208: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  6. Article: Regeneration in

    Marshall, Wallace F

    Frontiers in cell and developmental biology

    2021  Volume 9, Page(s) 753625

    Abstract: We often think about regeneration in terms of replacing missing structures, such as organs or tissues, with new structures generated via cell proliferation and differentiation. But at a smaller scale, single cells, themselves, are capable of regenerating ...

    Abstract We often think about regeneration in terms of replacing missing structures, such as organs or tissues, with new structures generated via cell proliferation and differentiation. But at a smaller scale, single cells, themselves, are capable of regenerating when part of the cell has been removed. A classic model organism that facilitates the study of cellular regeneration in the giant ciliate
    Language English
    Publishing date 2021-09-29
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2737824-X
    ISSN 2296-634X
    ISSN 2296-634X
    DOI 10.3389/fcell.2021.753625
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Mitochondrial networks through the lens of mathematics.

    Lewis, Greyson R / Marshall, Wallace F

    Physical biology

    2023  Volume 20, Issue 5

    Abstract: Mitochondria serve a wide range of functions within cells, most notably via their production of ATP. Although their morphology is commonly described as bean-like, mitochondria often form interconnected networks within cells that exhibit dynamic ... ...

    Abstract Mitochondria serve a wide range of functions within cells, most notably via their production of ATP. Although their morphology is commonly described as bean-like, mitochondria often form interconnected networks within cells that exhibit dynamic restructuring through a variety of physical changes. Further, though relationships between form and function in biology are well established, the extant toolkit for understanding mitochondrial morphology is limited. Here, we emphasize new and established methods for quantitatively describing mitochondrial networks, ranging from unweighted graph-theoretic representations to multi-scale approaches from applied topology, in particular persistent homology. We also show fundamental relationships between mitochondrial networks, mathematics, and physics, using ideas of graph planarity and statistical mechanics to better understand the full possible morphological space of mitochondrial network structures. Lastly, we provide suggestions for how examination of mitochondrial network form through the language of mathematics can inform biological understanding, and vice versa.
    MeSH term(s) Mathematics ; Lens, Crystalline ; Mitochondria ; Physics
    Language English
    Publishing date 2023-07-14
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2133216-2
    ISSN 1478-3975 ; 1478-3967
    ISSN (online) 1478-3975
    ISSN 1478-3967
    DOI 10.1088/1478-3975/acdcdb
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Homologous chromosome recognition via nonspecific interactions.

    Marshall, Wallace F / Fung, Jennifer C

    bioRxiv : the preprint server for biology

    2023  

    Abstract: In many organisms, most notably Drosophila, homologous chromosomes in somatic cells associate with each other, a phenomenon known as somatic homolog pairing. Unlike in meiosis, where homology is read out at the level of DNA sequence complementarity, ... ...

    Abstract In many organisms, most notably Drosophila, homologous chromosomes in somatic cells associate with each other, a phenomenon known as somatic homolog pairing. Unlike in meiosis, where homology is read out at the level of DNA sequence complementarity, somatic homolog pairing takes place without double strand breaks or strand invasion, thus requiring some other mechanism for homologs to recognize each other. Several studies have suggested a "specific button" model, in which a series of distinct regions in the genome, known as buttons, can associate with each other, presumably mediated by different proteins that bind to these different regions. Here we consider an alternative model, which we term the "button barcode" model, in which there is only one type of recognition site or adhesion button, present in many copies in the genome, each of which can associate with any of the others with equal affinity. An important component of this model is that the buttons are non-uniformly distributed, such that alignment of a chromosome with its correct homolog, compared with a non-homolog, is energetically favored; since to achieve nonhomologous alignment, chromosomes would be required to mechanically deform in order to bring their buttons into mutual register. We investigated several types of barcodes and examined their effect on pairing fidelity. We found that high fidelity homolog recognition can be achieved by arranging chromosome pairing buttons according to an actual industrial barcode used for warehouse sorting. By simulating randomly generated non-uniform button distributions, many highly effective button barcodes can be easily found, some of which achieve virtually perfect pairing fidelity. This model is consistent with existing literature on the effect of translocations of different sizes on homolog pairing. We conclude that a button barcode model can attain highly specific homolog recognition, comparable to that seen in actual cells undergoing somatic homolog pairing, without the need for specific interactions. This model may have implications for how meiotic pairing is achieved.
    Language English
    Publishing date 2023-06-28
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.06.09.544427
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Pattern Formation and Complexity in Single Cells.

    Marshall, Wallace F

    Current biology : CB

    2020  Volume 30, Issue 10, Page(s) R544–R552

    Abstract: In the context of animal or plant development, we tend to think of cells as small, simple, building blocks, such that complex patterns or shapes can only be constructed from large numbers of cells, with cells in different parts of the organism taking on ... ...

    Abstract In the context of animal or plant development, we tend to think of cells as small, simple, building blocks, such that complex patterns or shapes can only be constructed from large numbers of cells, with cells in different parts of the organism taking on different fates. However, cells themselves are far from simple, and often take on complex shapes with a remarkable degree of intracellular patterning. How do these patterns arise? As in embryogenesis, the development of structure inside a cell can be broken down into a number of basic processes. For each part of the cell, morphogenetic processes create internal structures such as organelles, which might correspond to organs at the level of a whole organism. Given that mechanisms exist to generate parts, patterning processes are required to ensure that the parts are distributed in the correct arrangement relative to the rest of the cell. Such patterning processes make reference to global polarity axes, requiring mechanisms for axiation which, in turn, require processes to break symmetry. These fundamental processes of symmetry breaking, axiation, patterning, and morphogenesis have been extensively studied in developmental biology but less so at the subcellular level. This review will focus on developmental processes that give eukaryotic cells their complex structures, with a focus on cytoskeletal organization in free-living cells, ciliates in particular, in which these processes are most readily apparent.
    MeSH term(s) Animals ; Body Patterning ; Cell Differentiation ; Embryonic Development ; Models, Biological ; Morphogenesis
    Language English
    Publishing date 2020-05-18
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2020.04.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3208: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  10. Article ; Online: Scaling of Subcellular Structures.

    Marshall, Wallace F

    Annual review of cell and developmental biology

    2020  Volume 36, Page(s) 219–236

    Abstract: As cells grow, the size and number of their internal organelles increase in order to keep up with increased metabolic requirements. Abnormal size of organelles is a hallmark of cancer and an important aspect of diagnosis in cytopathology. Most organelles ...

    Abstract As cells grow, the size and number of their internal organelles increase in order to keep up with increased metabolic requirements. Abnormal size of organelles is a hallmark of cancer and an important aspect of diagnosis in cytopathology. Most organelles vary in either size or number, or both, as a function of cell size, but the mechanisms that create this variation remain unclear. In some cases, organelle size appears to scale with cell size through processes of relative growth, but in others the size may be set by either active measurement systems or genetic programs that instruct organelle biosynthetic activities to create organelles of a size appropriate to a given cell type.
    MeSH term(s) Animals ; Humans ; Models, Biological ; Organelles/metabolism ; Subcellular Fractions/metabolism
    Language English
    Publishing date 2020-06-30
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 1293750-2
    ISSN 1530-8995 ; 1081-0706
    ISSN (online) 1530-8995
    ISSN 1081-0706
    DOI 10.1146/annurev-cellbio-020520-113246
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Se 1003: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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