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Cellulose microfibril deposition: coordinated activity at the plant plasma membrane
Author(s) -
LINDEBOOM J.,
MULDER B.M.,
VOS J.W.,
KETELAAR T.,
EMONS A.M.C.
Publication year - 2008
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.2008.02035.x
Subject(s) - microfibril , cellulose , exocytosis , cell wall , membrane , endocytosis , secondary cell wall , biophysics , chemistry , callose , polysaccharide , cell membrane , matrix (chemical analysis) , plant cell , materials science , biochemistry , cell , biology , chromatography , gene
Summary Plant cell wall production is a membrane‐bound process. Cell walls are composed of cellulose microfibrils , embedded inside a matrix of other polysaccharides and glycoproteins. The cell wall matrix is extruded into the existing cell wall by exocytosis. This same process also inserts the cellulose synthase complexes into the plasma membrane. These complexes, the nanomachines that produce the cellulose microfibrils, move inside the plasma membrane leaving the cellulose microfibrils in their wake. Cellulose microfibril angle is an important determinant of cell development and of tissue properties and as such relevant for the industrial use of plant material. Here, we provide an integrated view of the events taking place in the not more than 100 nm deep area in and around the plasma membrane, correlating recent results provided by the distinct field of plant cell biology. We discuss the coordinated activities of exocytosis, endocytosis, and movement of cellulose synthase complexes while producing cellulose microfibrils and the link of these processes to the cortical microtubules.