Revisiting the dual pathway hypothesis of Chorismate production in plants.
Journal
Horticulture research
ISSN: 2662-6810
Titre abrégé: Hortic Res
Pays: England
ID NLM: 101655540
Informations de publication
Date de publication:
2022
2022
Historique:
received:
31
12
2021
accepted:
19
02
2022
entrez:
30
3
2022
pubmed:
31
3
2022
medline:
31
3
2022
Statut:
epublish
Résumé
The shikimate pathway, the seven enzymatic steps that synthesize chorismate from phosphoenolpyruvate and erythrose 4-phosphate, produces the last common precursor of the three aromatic amino acids. It is firmly established that all seven enzymes are present in plastids, and it is generally accepted that this organelle is likely the sole location for production of chorismate in plants. However, recently a growing body of evidence has provided support for a previous proposal that at least portions of the pathway are duplicated in the cytosol, referred to as the Dual Pathway Hypothesis. Here I revisit this obscure hypothesis by reviewing the findings that provided the original basis for its formulation as well as more recent results that provide fresh support for a possible extra-plastidial shikimate pathway duplication. Similarities between this possible intercompartmental metabolic redundancy and that of terpenoid metabolism are used to discuss potential advantages of pathway duplication, and the translational implications of the Dual Pathway Hypothesis for metabolic engineering are noted.
Identifiants
pubmed: 35350169
doi: 10.1093/hr/uhac052
pii: uhac052
pmc: PMC8945279
doi:
Types de publication
Journal Article
Langues
eng
Pagination
uhac052Informations de copyright
© The Author(s) 2022. Published by Oxford University Press on behalf of Nanjing Agricultural University.
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