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When is a peroxisome not a peroxisome?
journal contributionposted on 2023-05-18, 11:19 authored by Pracharoenwattana, I, Steven SmithSteven Smith
It is time to drop the glyoxysome name. Recent functional genomics analysis together with cell biology studies emphasize the unifying features of peroxisomes rather than their differences. Plant peroxisomes contain 300 or more proteins, the functions of which are dominated by activities related to fatty acid oxidation (>70 enzymes). By comparison, relatively few proteins are committed to metabolism of reactive oxygen species (∼20) and to photorespiration (∼10). Analysis of triglyceride metabolism in Arabidopsis seedlings now indicates that only two enzymes (isocitrate lyase and malate synthase) potentially distinguish glyoxysomes from other peroxisomes. Future research is best served by focusing on the common features of peroxisomes to establish how these dynamic organelles contribute to energy metabolism, development and responses to environmental challenges.
Publication titleTrends in Plant Science
Department/SchoolSchool of Natural Sciences
PublisherElsevier Science London
Place of publication84 Theobalds Rd, London, England, Wc1X 8Rr
Rights statementCopyright 2008 Elsevier