Latest on Enzymology of Serotonin Biosynthesis in Walnut Seeds View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

1999

AUTHORS

Peter Schröder , Claudia Abele , Petra Gohr , Uta Stuhlfauth-Roisch , Wolfgang Grosse

ABSTRACT

Serotonin (5-HT) accumulation in walnut cotyledons is seen as a detoxification mechanism protecting the sensitive plant tissues of seeds from highly toxic ammonia concentrations following seed desiccation. Different metabolic pathways and cell compartments are involved in biosynthesis and storage of 5-HT. Ammonia fixation and incorporation into the indole moiety of tryptophan is followed by 5-HT biosynthesis via tryptamine in a two-step pathway with the adaptive tryptophan decarboxylase and the constitutive tryptamine 5-hydroxylase. Evidence is provided that tryptamine 5-hydroxylase is a member of the cytochrome P450 family which is involved in lipid hydroxylation processes in the very early period of seed development. More... »

PAGES

637-644

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-1-4615-4709-9_81

DOI

http://dx.doi.org/10.1007/978-1-4615-4709-9_81

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1044036774

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/10721112


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