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A nodule-specific protein secretory pathway required for nitrogen-fixing symbiosis (2010)

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Title A nodule-specific protein secretory pathway required for nitrogen-fixing symbiosis
Published in Science, Vol. 327, No. 5969, p.1126-1129. ISSN 0036-8075.
Author Wang, D.; Griffitts, J.; Starker, C.; Fedorova, E.; Limpens, E.; Ivanov, S.E.; Bisseling, T.; Long, S.
Date 2010
Reference(s) Laboratorium voor Moleculaire biologie
Language English
Type Article
Abstract The nitrogen-fixing symbiosis between Sinorhizobium meliloti and its leguminous host plant Medicago truncatula occurs in a specialized root organ called the nodule. Bacteria that are released into plant cells are surrounded by a unique plant membrane compartment termed a symbiosome. We found that in the symbiosis-defective dnf1 mutant of M. truncatula, bacteroid and symbiosome development are blocked. We identified the DNF1 gene as encoding a subunit of a signal peptidase complex that is highly expressed in nodules. By analyzing data from whole-genome expression analysis, we propose that correct symbiosome development in M. truncatula requires the orderly secretion of protein constituents through coordinated up-regulation of a nodule-specific pathway exemplified by DNF1
Publication http://library.wur.nl/WebQuery/wurpubs/392362
OpenURL Search this publication in (your) library
Persistent Identifier urn:nbn:nl:ui:32-392362
Metadata XML
Repository Wageningen University & Research Centre

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