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Interwoven networks of cellulose and pectin are the main components of plant cell walls 1 , making them recalcitrant structures that can only be degraded by organisms producing a mix of synergistically acting enzymes. Animals were believed to be unable to synthesize these enzymes, depending instead on symbiotic microbes to render plants into a food source. Here we describe a metazoan pectinase gene that encodes a pectate lyase for breaking down the pectin component of plant cell walls. To our knowledge, this is the first example of non-symbiotic degradation of pectin in plant cell walls by an animal.
Nature – Springer Journals
Published: Jul 6, 2000
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