The light-harvesting chlorophyll A/B protein acts as a torque aligning chloroplasts in a magnetic field
Displacement of particles from the purified light-harvesting chlorophyll a/b protein aggregate (LHC) was studied in magnetic fields of various strengths (0 to 1.6 T) by polarized fluorescence measurements. Macromolecular aggregates of LHC have a considerable magnetic susceptibility which enables the...
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| Veröffentlicht in: | Photosynthesis research 1986, Vol.10 (3), p.217-222 |
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| container_title | Photosynthesis research |
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| creator | KISS, J. G GARAB, G. I TOTH, Z. M FALUDI-DANIEL, A |
| description | Displacement of particles from the purified light-harvesting chlorophyll a/b protein aggregate (LHC) was studied in magnetic fields of various strengths (0 to 1.6 T) by polarized fluorescence measurements. Macromolecular aggregates of LHC have a considerable magnetic susceptibility which enables the particles to rotate and align with their nematic axes parallel with H. As LHC is embedded in a transmembrane direction thylakoids should align perpendicular to H, the mode of alignment experimentally observed in thylakoids. The value of the magnetic susceptibility could be estimated by relating it to the integral susceptibility of the chlorophyll molecules in LHC. The fitting of this value with the field strength dependency of the fluorescence polarization ratio (FP) revealed a relationship between the LHC content of various photosynthetic membranes and their capacity for alignment, which suggested that LHC might be the torque ordering chloroplasts in a magnetic field. |
| doi_str_mv | 10.1007/BF00118286 |
| format | Article |
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The fitting of this value with the field strength dependency of the fluorescence polarization ratio (FP) revealed a relationship between the LHC content of various photosynthetic membranes and their capacity for alignment, which suggested that LHC might be the torque ordering chloroplasts in a magnetic field.</description><identifier>ISSN: 0166-8595</identifier><identifier>EISSN: 1573-5079</identifier><identifier>DOI: 10.1007/BF00118286</identifier><identifier>PMID: 24435368</identifier><identifier>CODEN: PHRSDI</identifier><language>eng</language><publisher>Dordrecht: Kluwer</publisher><subject>Biological and medical sciences ; Cell structures and functions ; Chloroplast, photosynthetic membrane and photosynthesis ; Fundamental and applied biological sciences. 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The value of the magnetic susceptibility could be estimated by relating it to the integral susceptibility of the chlorophyll molecules in LHC. The fitting of this value with the field strength dependency of the fluorescence polarization ratio (FP) revealed a relationship between the LHC content of various photosynthetic membranes and their capacity for alignment, which suggested that LHC might be the torque ordering chloroplasts in a magnetic field.</description><subject>Biological and medical sciences</subject><subject>Cell structures and functions</subject><subject>Chloroplast, photosynthetic membrane and photosynthesis</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>Molecular and cellular biology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>KISS, J. G</creatorcontrib><creatorcontrib>GARAB, G. I</creatorcontrib><creatorcontrib>TOTH, Z. M</creatorcontrib><creatorcontrib>FALUDI-DANIEL, A</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Photosynthesis research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>KISS, J. G</au><au>GARAB, G. I</au><au>TOTH, Z. 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| fulltext | fulltext |
| identifier | ISSN: 0166-8595 |
| ispartof | Photosynthesis research, 1986, Vol.10 (3), p.217-222 |
| issn | 0166-8595 1573-5079 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1490772375 |
| source | Springer Nature - Complete Springer Journals |
| subjects | Biological and medical sciences Cell structures and functions Chloroplast, photosynthetic membrane and photosynthesis Fundamental and applied biological sciences. Psychology Molecular and cellular biology |
| title | The light-harvesting chlorophyll A/B protein acts as a torque aligning chloroplasts in a magnetic field |
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