thylakoid

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thylakoid

[′thī·lə‚kȯid]
(cell and molecular biology)
An internal membrane system which occupies the main body of a plastid; particularly well developed in chloroplasts.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Temperature induced changes in thylakoid membrane thermostability of cultured, freshly isolated, and expelled zooxanthellae from scleractinian corals.
The objective of the study was to investigate the effects of Mn application on the photosystem-II activity on the isolated thylakoid membranes of the rice.
It has been suggested that sublethal selenate concentrations in the culture medium can damage thylakoid membrane structures, thus affecting photosynthesis by both impairing PS II function resulting in decreased [Y.sub.op] and by limiting electron transport between PSII and PSI, with a decrease in [[PHI].sub.PSII] which inhibits photosynthesis and decreases growth rate [1].
Inquire Biology also explains the basics of a concept--for example, in this case it points out that a thylakoid membrane is a double membrane.
The plastid ndh genes code for an NADH-specific dehydrogenase: purification and characterization of a mitochondrial-like complex I from pea thylakoid membranes. Proc Natl Acad Sci USA., 95: 1319-1324.
The light reactions on the thylakoid membrane all happen in a microsecond.
The thylakoid membrane is the place where it all happens at a fast pace.
Coupled with this process, a proton translocation across the thylakoid membrane builds-up a difference in electrochemical potential that is harnessed for ATP synthesis.
Much of this stability lies within the composition of the thylakoid membrane where LHCs are found (Hugly et al., 1989; Kunst et al., 1989; Gombos et al., 1994;).
(Amino acids are the building blocks of proteins.) From the PS II reaction center, electrons flow to plastoquinone molecules, which are floating freely in the thylakoid membrane, and from there to another membrane-protein complex, the cytochrome [b.sub.6] f complex.
Their topics include the diversity of interactions in redox systems: from short-lived to long-lived complexes, the role of cardiolipin in a mitochondrial supercomplex assembly, mitochondrial respiratory supercomplexes in physiology and diseases, the regulation of photosynthetic electron transport via supercomplex formation in the thylakoid membrane, membrane organization and electron transport switches in cyanobacteria, and the regulation of cellular signaling by thioredoxin.
It transfers electrons from plastoquinol to O2 with formation of H2O and acts as the terminal oxidase of chlororespiration, which represents a respiratory electron transport chain in thylakoid membrane. Moreover, PTOX was also regarded as an important co-factor of carotenoid biosynthesis by transferring the electrons derived from precursors to O2 via plastoquinol (McDonald et al., 2011).