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Plants 2014, 3(4), 613-623; doi:10.3390/plants3040613

Plant Polygalacturonases Involved in Cell Elongation and Separation—The Same but Different?

Department of Cell Biology, Max Planck Institute for Developmental Biology, Spemannstrasse 35, Tuebingen 72076, Germany
Author to whom correspondence should be addressed.
Received: 10 October 2014 / Revised: 25 November 2014 / Accepted: 28 November 2014 / Published: 9 December 2014
(This article belongs to the Special Issue Plant Cell Walls: Chemical and Metabolic Analysis)
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Plant cells are surrounded by the primary cell wall, a rigid framework that needs to be modified in order to allow cell growth. Recent data suggest that in addition to the cellulose-hemicellulose network, the pectin matrix plays a critical role in determining the elasticity of the primary cell wall. Polygalacturonases are key homogalacturonan-hydrolyzing enzymes that function in a wide range of developmental processes. In this review, we present recent progress in understanding the role of polygalacturonases during cell elongation and separation. In discussing the specificities and possible redundancies of polygalacturonases, we focus particularly on newly discovered Arabidopsis mutants that have measurable loss-of-function phenotypes. However, data from other species are included when necessary. View Full-Text
Keywords: polygalacturonase; pectin; cell wall; cell elongation; genetic redundancy polygalacturonase; pectin; cell wall; cell elongation; genetic redundancy

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Babu, Y.; Bayer, M. Plant Polygalacturonases Involved in Cell Elongation and Separation—The Same but Different? Plants 2014, 3, 613-623.

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