Vitamin E biosynthesis: biochemistry meets cell biology.

Vitamin E is thought to be involved in many essential processes in plants, but no functional proof has been reported. To study vitamin E deficiency in plants, a high-throughput biochemical screen for vitamin E quantification in Arabidopsis mutants has been developed, which has led to the identification of VTE1-encoding tocopherol cyclase. Interestingly, the corresponding maize mutation, sxd1, causes plasmodesmata malfunction, suggesting a link between tocopherol cyclase and plasmodesmata function.
AuthorsDaniel Hofius, Uwe Sonnewald
JournalTrends in plant science (Trends Plant Sci) Vol. 8 Issue 1 Pg. 6-8 (Jan 2003) ISSN: 1360-1385 [Print] England
PMID12523993 (Publication Type: Journal Article)
Chemical References
  • Plant Proteins
  • Sxd1 protein, Zea mays
  • Vitamin E
  • Tocopherols
  • gamma-Tocopherol
  • beta-Tocopherol
  • Intramolecular Transferases
  • tocopherol cyclase
  • alpha-Tocopherol
  • Arabidopsis (enzymology, genetics, metabolism)
  • Intramolecular Transferases (genetics, metabolism)
  • Mutation
  • Plant Proteins (genetics, metabolism)
  • Plant Structures (physiology)
  • Tocopherols (chemistry, metabolism)
  • Vitamin E (biosynthesis, chemistry)
  • Zea mays (genetics)
  • alpha-Tocopherol (chemistry, metabolism)
  • beta-Tocopherol (chemistry, metabolism)
  • gamma-Tocopherol (chemistry, metabolism)

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