Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A saclike membrane in the chloroplasts of plant cells that is often arranged in stacks called grana and that is the site of the light reactions of photosynthesis.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology a folded membrane within plant chloroplasts from which grana are made, used in photosynthesis

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek thūlakos, sack + –oid.]

Examples

  • Under these conditions, high light conditions can cause thylakoid membranes to become damaged in a process known as photoinhibition.

    Photosynthesis

  • Light energy from the sun is captured by photosynthetic pigments and is transferred along a series of proteins and iron-sulfur containing compounds along the thylakoid membranes of the chloroplast; the net result being the formation of high-energy compounds such as ATP and NADPH.

    Photosynthesis

  • The cells were broken in a Bead-Beater with an ice-jacketed sample chamber by six breakage cycles at full speed (30 s of bursts, followed by 5 min of chilling) after adding an equal volume of glass beads pre-wetted by the thylakoid buffer to the cell suspension.

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  • After washing with 2 mM dodecyl maltoside to remove any of the remaining phycobilisomes, the membranes were washed twice and resuspended in the thylakoid buffer to a Chl concentration of 1 mg ml

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  • The thylakoid protein complexes were then isolated, solubilized in mild detergents and fractionated by sucrose gradient ultracentrifugation.

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  • Blots of the thylakoid membrane proteins were probed with polyclonal anti-D1 antibodies.

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  • The thylakoid membranes were adjusted to a Chl concentration of 15 µg ml

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  • The thylakoid protein complexes were then separated by step sucrose gradient ultracentrifugation at 160,000×

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  • In the exposed peduncle, the membranes constituting the thylakoids were very distinct and plentiful, but in the flag leaf, there was a sharp breakdown at stage 4 and complete disintegration of the thylakoid membranes at stage 5.

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  • To fractionate the membrane protein complexes, a solution of 10% (the percentage (%) of a solution is calculated as weight to volume (w/v) unless otherwise indicated) dodecyl maltoside was added to the thylakoid membranes to achieve a detergent-to-Chl ratio of 15: 1.

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