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PMID: 7189755 Published · ppublish English Journal Article Research Support, U.S. Gov't, Non-P.H.S.

Evidence for an intramembrane component associated with a cellulose microfibril-synthesizing complex in higher plants.

The Journal of cell biology ·Vol. 84 ·No. 2 ·1980-02-00 ·Pages 315-26

Mueller SC, Brown RM

Abstract

Freeze-fracture of rapidly frozen, untreated plant cells reveals terminal complexes on E-fracture faces and intramembrane particle rosettes on P-fracture faces. Terminal complexes and rosettes are associated with the ends of individual microfibril impressions on the plasma membrane. In addition, terminal complexes and rosettes are associated with the impressions of new orientations of microfibrils. These structures are sparse within pit fields where few microfibril impressions are observed, but are abundant over adjacent impressions of microfibrils. It is proposed that intramembrane rosettes function in association with terminal complexes to synthesize microfibrils. The presence of a cellulosic microfibril system in Zea mays root segments is confirmed by degradation experiments with Trichoderma cellulase.

MeSH Terms

Cell Membrane/ultrastructure Cellulase/metabolism Cellulose/analysis Cytoskeleton/ultrastructure Freeze Etching Models, Structural Plants/ultrastructure Trichoderma/enzymology Zea mays/ultrastructure

Chemicals

Cellulose Cellulase

Authors & Affiliations

2 authors, click to expand affiliations / ORCID

Mueller S C

Brown R M

References (12)

12 references, click to expand

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J Cell Biol. 1978 Mar;76(3):712-28 PMID: 344327
Cellulose microfibrils: visualization of biosynthetic and orienting complexes in association with the plasma membrane.
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Surface architecture of the plant cell: biogenesis of the cell wall, with special emphasis on the role of the plasma membrane in cellulose biosynthesis.
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Cellulose biosynthesis in Acetobacter xylinum: visualization of the site of synthesis and direct measurement of the in vivo process.
Proc Natl Acad Sci U S A. 1976 Dec;73(12):4565-9 PMID: 1070005
Membrane events during the secretory process.
Symp Soc Exp Biol. 1974;(28):399-418 PMID: 4616398
Tissue Slice and Particulate beta-Glucan Synthetase Activities from Pisum Epicotyls.
Plant Physiol. 1978 Jun;61(6):938-42 PMID: 16660430
Cellulosic microfibrils: nascent stages of synthesis in a higher plant cell.
Science. 1976 Nov 26;194(4268):949-51 PMID: 17748556
The direct measurement of temperature changes within freeze-fracture specimens during rapid quenching in liquid coolants.
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Article Info

Journal

The Journal of cell biology

Abbr.

J Cell Biol

ISSN

0021-9525

DOI

10.1083/jcb.84.2.315

Published

1980-02-00

Pages

315-26

Language

English

Region

United States

NLM ID

0375356

PMCID

PMC2110546

Subset

External Links

PubMed source DOI: 10.1083/jcb.84.2.315 PMC Full Text View journal details

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Evidence for an intramembrane component associated with a cellulose microfibril-synthesizing complex in higher plants.

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