A quinone present in chloroplasts, forming part of the photosynthetic electron transport chain. Closely associated with photosystem II. May be stored in plastoglobuli.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • Plastoquinone — Général Nom IUPAC 2,5 Cyclohexadiene 1,4 dione, 2,3 dimethyl 5 (3,7,11,15,19,23,27,31,35 nonamethyl 2,6,10,14,18,22,26,30,34 hexatriacontanonaenyl) , (all E) …   Wikipédia en Français

  • Plastoquinone — Chembox new ImageFile = Plastoquinone.png Section1 = Chembox Identifiers CASNo = 4299 57 4 PubChem = 6433402 SMILES = Section2 = Chembox Properties Formula = C53H80O2 MolarMass = 749,20 g·mol−1 Appearance = Density = MeltingPt = BoilingPt =… …   Wikipedia

  • plastoquinone — noun Etymology: Greek plastos + English quinone Date: 1958 a plant substance that is related to vitamin K and plays a role in photosynthetic phosphorylation …   New Collegiate Dictionary

  • plastoquinone — /plas toh kweuh nohn , kwin ohn/, n. Biochem. a quinone that occurs in the chloroplasts of plants and functions as an electron carrier during photosynthesis. [1955 60; (CHLORO)PLAST or PLAST(ID) + O + QUINONE] * * * …   Universalium

  • plastoquinone — noun a quinone, related to the carotenoids, involved in the electron transport process of photosynthesis …   Wiktionary

  • plastoquinone — 2,3 Dimethyl 1,4 benzoquinone with a multiprenyl side chain; a trivial name sometimes used for p. 9. * * * plas·to·qui·none .plas (.)tō kwin ōn, kwin .ōn n any of a group of substances that occur mostly in plant chloroplasts, are related to… …   Medical dictionary

  • plastoquinone — plas·to·quinone …   English syllables

  • plastoquinone — One of a group of compounds involved in the transport of electrons as part of the process of photosynthesis …   Glossary of Biotechnology

  • plastoquinone — ˌ noun Etymology: plasto + quinone : any of a group of substances that occur mostly in plant chloroplasts, consist of paraquinone with two methyl substituents and a side chain of one or more isoprene units, are related to vitamin K, and play a… …   Useful english dictionary

  • plastoquinone-9 (PQ-9), plastoquinone E9 — 2,3 Dimethyl 6 nonaprenyl 1,4 benzoquinone; one of a group of vitamins E and K and coenzymes Q; the isomeric form is plastochromenol 8; a participant in photosynthetic electron transport …   Medical dictionary

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