| Role of the Extensin Superfamily in Primary Cell Wall Architecture. | |
MedLine Citation:
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PMID: 21415277 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Nearly two centuries of progress have established the major components of the plant cell wall, a composite that includes interpenetrating networks of cellulose (Payen, 1838; Schulze, 1891), microfibrils (Frey-Wyssling et al., 1948; Preston et al., 1948), pectin (Braconnot, 1825) and lignin (Payen, 1838). However, only over the last five decades has a relatively minor hydroxyproline-rich structural glycoprotein component emerged with essential roles in building and maintaining the growing primary cell wall. Here we highlight unique advances of each decade from the initial discovery of hydroxyproline (Hyp) in cell walls to the current definition of extensins as self-assembling amphiphiles that generate scaffolding networks, and where acid-base interaction - extensin pectate - may template assembly of the pectic matrix. Subsequent polymerization toughens up the wall as networks resisting both microbial and mechanical stress. At each stage we explore hypotheses arising from synthesis of emerging data with focus on structure. This review celebrates the 50th birthday of extensin. |
Authors:
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Derek T A Lamport; Marcia J Kieliszewski; Yuning Chen; Maura C Cannon |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-3-17 |
Journal Detail:
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Title: Plant physiology Volume: - ISSN: 1532-2548 ISO Abbreviation: - Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-3-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401224 Medline TA: Plant Physiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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1 University of Sussex; |
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