The role of transketolase and octulose in the resurrection plant Craterostigma plantagineum.
J Exp Bot
; 67(11): 3551-9, 2016 05.
Article
em En
| MEDLINE
| ID: mdl-27129952
ABSTRACT
Phylogenetic analysis revealed that Craterostigma plantagineum has two transketolase genes (transketolase 7 and 10) which are separated from the other transketolase genes including transketolase 3 from C. plantagineum We obtained recombinant transketolase 3, 7, and 10 of C. plantagineum and showed that transketolase 7 and 10 of C. plantagineum, but not transketolase 3, catalyse the formation of octulose-8-phosphate in vitro Transketolase 7 and 10 of C. plantagineum performed the exchange reaction that produces octulose-8-phosphate using glucose-6-phosphate and fructose-6-phosphate as substrates. Octulose is localized in the cytosol and phloem exudate analysis showed that octulose was the dominant sugar exported from the leaves to the roots.
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Base de dados:
MEDLINE
Assunto principal:
Proteínas de Plantas
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Transcetolase
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Craterostigma
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Metabolismo dos Carboidratos
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article