any compound having a quinone nucleus with a terpenoid side chain
plastoquinone in American English
(ˌplæstoukwəˈnoun, -ˈkwɪnoun)
noun
Biochemistry
a quinone that occurs in the chloroplasts of plants and functions as an electron carrier during photosynthesis
Word origin
[1955–60; (chloro)plast or plast(id) + -o- + quinone]This word is first recorded in the period 1955–60. Other words that entered Englishat around the same time include: cassette, life-support, opioid, rite of passage, rollout-o- is the typical ending of the first element of compounds of Greek origin (as -i- is, in compounds of Latin origin), used regularly in forming new compounds with elementsof Greek origin and often used in English as a connective irrespective of etymology(Franco-Italian; geography; seriocomic; speedometer)
Examples of 'plastoquinone' in a sentence
plastoquinone
The plastoquinone level in fbn4 knock-down plastoglobules was less than 10% of thatin wild-type plastoglobules.
Dharmendra K Singh, Tatiana N Laremore, Philip B Smith, Siela N Maximova, TimothyW McNellis 2012, 'Knockdown of FIBRILLIN4 gene expression in apple decreases plastoglobule plastoquinonecontent.', PLoS ONEhttp://europepmc.org/articles/PMC3470590?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Both responses are initiated by changes in the redox state of the electron carrier, plastoquinone, which connectsthe two photosystems.
John F Allen, Stefano Santabarbara, Carol A Allen, Sujith Puthiyaveetil 2011, 'Discrete redox signaling pathways regulate photosynthetic light-harvesting and chloroplastgene transcription.', PLoS ONEhttp://europepmc.org/articles/PMC3198397?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Interestingly, the short-term changes in the metabolome were accompanied by changes in the degree of reduction of the plastoquinone pool.
Anne Jungandreas, Benjamin Schellenberger Costa, Torsten Jakob, Martin von Bergen,Sven Baumann, Christian Wilhelm 2014, 'The Acclimation of Phaeodactylum tricornutum to Blue and Red Light Does Not Influencethe Photosynthetic Light Reaction but Strongly Disturbs the Carbon Allocation Pattern',PLoS ONE10.1371/journal.pone.0099727. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Plastoquinone derivatives conjugated with rhodamine were the most efficient, and the least efficiency was shown by antioxidants conjugated with tetraphenylphosphonium.
Denis N. Silachev, Egor Y. Plotnikov, Ljubava D. Zorova, Irina B. Pevzner, NataliaV. Sumbatyan, Galina A. Korshunova, Mikhail V. Gulyaev, Yury A. Pirogov, VladimirP. Skulachev, Dmitry B. Zorov 2015, 'Neuroprotective Effects of Mitochondria-Targeted Plastoquinone and Thymoquinone ina Rat Model of Brain Ischemia/Reperfusion Injury', Moleculeshttp://www.mdpi.com/1420-3049/20/8/14487. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We utilized pulse-amplitude modulated fluorometry to investigate the redox state of the plastoquinone pool during and after bright light pulses.
Gunvor Røkke, Thor Bernt Melø, Martin Frank Hohmann-Marriott 2017, 'The plastoquinone pool of Nannochloropsis oceanica is not completely reduced duringbright light pulses', PLOS ONE10.1371/journal.pone.0175184. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Indeed, physiological experiments revealed between-accession variation in electron transport rate and the redox state of the plastoquinone pool.
Hokuto Nakayama, Tomoaki Sakamoto, Yuki Okegawa, Kaori Kaminoyama, Manabu Fujie, YasunoriIchihashi, Tetsuya Kurata, Ken Motohashi, Ihsan Al-Shehbaz, Neelima Sinha, SeisukeKimura 2018, 'Comparative transcriptomics with self-organizing map reveals cryptic photosyntheticdifferences between two accessions of North American Lake cress', Scientific Reportshttp://link.springer.com/article/10.1038/s41598-018-21646-w. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)