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Quantasome

{{more footnotes|date=May 2018}}

Quantasomes are particles found in the thylakoid membrane of chloroplasts in which photosynthesis takes place. They are embedded in a paracrystalline array on the surface of thylakoid discs in chloroplasts. They are composed of lipids and proteins that include various photosynthetic pigments and redox carriers. For this reason they are considered to be photosynthetic units. They occur in 2 sizes: the smaller quantasome is thought to represent the site of photosystem I, the larger to represent the site of photosystem II.{{clarification needed|reason=this appears to contradict the following paragraph that states " Each quantasome forms two pigment systems, PS-I and PS-II "|date=May 2023}}

See also

References

{{cite journal | title = Quantasome as a Photosynthetic Unit | first = Robert M. | last = Pearlstein | journal = Science | volume = 145 | issue = 3638 | pages = 1336 | date = September 8, 1964 | pmid = 17802020 | doi = 10.1126/science.145.3638.1336 | jstor = 1713904 | bibcode = 1964Sci...145.1336P | doi-access = }}

{{cite journal | title = Molecular Orientation in Quantasomes | date = May 1965 | first = Kenneth | last = Sauer | journal = Biophysical Journal | volume = 5 | number = 3 | pages = 337–348 | pmc = 1367739 | doi=10.1016/s0006-3495(65)86720-0 | pmid=19431337}}

{{cite journal | title = Function of the "Quantasome" in Photosynthesis: Structure and Properties of Membrane-Bound Particle Active in the Dark Reactions of Photophosphorylation | first1= Stephen H. | last1 = Howell | first2 = Evangelos N. | last2 = Moudrianakis | date = September 15, 1967 | journal = Proceedings of the National Academy of Sciences of the United States of America | volume = 58 | number = 3 | pages = 1261–1268 | pmc = 335777 | jstor = 58108 | doi=10.1073/pnas.58.3.1261 | pmid=16578666| bibcode= 1967PNAS...58.1261H | doi-access= free }}

{{cite book | url = https://archive.org/details/dictionaryofplan0000unse_a2q0 | first = Michael | last = Allaby | authorlink = Michael Allaby | title = quantasome | work = A Dictionary of Plant Sciences | year = 1998 | publisher = Oxford University Press | isbn = 9780198608912 | oclc = 70708119 }}

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Category:Photosynthesis

Category:Plant anatomy

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