2004
DOI: 10.1575/1912/1858
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Gut-associated microbial symbionts of the marsh fiddler crab, Uca pugnax

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Cited by 10 publications
(2 citation statements)
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“…As the enzyme was purified from the midgut gland, which produces other cellulases endogenously (Allardyce and Linton, 2008), it is likely that glucohydrolase is also an endogenous enzyme of G. natalis. Although the digestive tract of decapod crustaceans does harbour bacteria that might synthesise the glucohydrolase, the crustacean midgut gland appears to contain an order of magnitude fewer bacteria than either the hindgut or foregut (Gulmann, 2004). Anaerobic fermentation is also absent from the foregut of the gecarcinid crab Cardisoma guahumi, suggesting that decapod crabs are not dependent on symbiotic cellulases (Wolcott and Wolcott, 1987).…”
Section: Discussionmentioning
confidence: 99%
“…As the enzyme was purified from the midgut gland, which produces other cellulases endogenously (Allardyce and Linton, 2008), it is likely that glucohydrolase is also an endogenous enzyme of G. natalis. Although the digestive tract of decapod crustaceans does harbour bacteria that might synthesise the glucohydrolase, the crustacean midgut gland appears to contain an order of magnitude fewer bacteria than either the hindgut or foregut (Gulmann, 2004). Anaerobic fermentation is also absent from the foregut of the gecarcinid crab Cardisoma guahumi, suggesting that decapod crabs are not dependent on symbiotic cellulases (Wolcott and Wolcott, 1987).…”
Section: Discussionmentioning
confidence: 99%
“…Η επίδραση όμως των βακτηρίων του μεσέντερου στη διαδικασία της έκδυσης παραμένει απροσδιόριστη. Κάποιες μελέτες έχουν δείξει την αύξηση της ενεργότητας των χιτινασών κατά τη μετεκδυτική περίοδο (δύο με τρεις μέρες μετά την έκδυση) (Gulmann 2004) και η δράση τους έχει συνδεθεί με τη βοήθεια 107 στην απελευθέρωση του εκδύματος (Lustigman et al 1996, Vega--Villasante et al 1999). Σε αυτήν την περίπτωση οι πιθανές χιτινολυτικές ιδιότητες των συγγενών ως προς το P. leiognathi φυλότυπων θα μπορούσαν να εξηγήσουν την επικράτησή του στο μετεκδυτικό δείγμα P6m2.…”
Section: φυσικοί πληθυσμοίunclassified