ArticlePlant signaling & behavior2017
Supraoptimal activity of CHLOROPHYLL DEPHYTYLASE1 results in an increase in tocopherol level in mature arabidopsis seeds.
Article in Plant signaling & behavior, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- Total tocopherol levels in maize grain depend on chlorophyll biosynthesis within the embryo.BMC plant biology · 2025Article
- A family of α/β hydrolases removes phytol from chlorophyll metabolites for tocopherol biosynthesis in Arabidopsis.The Plant cell · 2025Article
- Article
- Genome-wide association identifies a missing hydrolase for tocopherol synthesis in plants.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Mining of Potential Gene Resources for Breeding Nutritionally Improved Maize.Plants (Basel, Switzerland) · 2022Review
- Vitamin E synthesis and response in plants.Frontiers in plant science · 2022Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tocopherols are synthesized in photosynthetic organisms, playing a role in plant stress tolerance. Recent studies showed that the phytol moiety of tocopherols comes from the salvaged phytol chain during chlorophyll degradation. However, the enzyme(s) responsible for chlorophyll dephytylation remains unclear. Recently, we reported the identification and characterization of CHLOROPHYLL DEPHYTYLASE1 (CLD1) of Arabidopsis, suggesting its role in chlorophyll turnover at steady state. In this addendum to the report, we presented and discussed the results related to the function of CLD1 in tocopherol biosynthesis. The tocopherol levels in the mature seeds were not altered in the transgenic lines with reduced CLD1 expression but were moderately increased in the plants with supraoptimal CLD1 activity compared to wild type. These results suggest that manipulating CLD1 activity could affect tocopherol biosynthesis to a certain extent and that other dephytylating enzymes are sharing redundant function in contributing the phytol pool in plant cells.
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Registered trials
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