Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones. / Tokita, S; Frigaard, N-U; Hirota, M; Shimada, K; Matsuura, K.

In: Photochemistry and Photobiology, Vol. 72, No. 3, 2000, p. 345-350.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Tokita, S, Frigaard, N-U, Hirota, M, Shimada, K & Matsuura, K 2000, 'Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones', Photochemistry and Photobiology, vol. 72, no. 3, pp. 345-350. <http://www3.interscience.wiley.com/cgi-bin/fulltext/119932161/PDFSTART>

APA

Tokita, S., Frigaard, N-U., Hirota, M., Shimada, K., & Matsuura, K. (2000). Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones. Photochemistry and Photobiology, 72(3), 345-350. http://www3.interscience.wiley.com/cgi-bin/fulltext/119932161/PDFSTART

Vancouver

Tokita S, Frigaard N-U, Hirota M, Shimada K, Matsuura K. Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones. Photochemistry and Photobiology. 2000;72(3):345-350.

Author

Tokita, S ; Frigaard, N-U ; Hirota, M ; Shimada, K ; Matsuura, K. / Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones. In: Photochemistry and Photobiology. 2000 ; Vol. 72, No. 3. pp. 345-350.

Bibtex

@article{616c6170962611de8bc9000ea68e967b,
title = "Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones",
abstract = "The quenching of bacteriochlorophyll (BChl) c fluorescence in chlorosomes isolated from Chloroflexus aurantiacus was examined by the addition of various benzoquinones, naphthoquinones (NQ), and anthraquinones (AQ). Many quinones showed strong quenching in the micromolar or submicromolar range. The number of quinone molecules bound to the chlorosomes was estimated to be as small as one quinone molecule per 50 BChl c molecules. Quinones which exhibit a high quenching effect have sufficient hydrophobicity and one or more hydroxyl groups in the alpha positions of NQ and AQ. Chlorobiumquinone has been suggested to be essential for the endogenous quenching of chlorosome fluorescence in Chlorobium tepidum under oxic conditions. We suggest that the quenching effect of chlorobiumquinone in chlorosomes from Chl. tepidum is related to the 1'-oxo group neighboring the dicarbonyl group.",
author = "S Tokita and N-U Frigaard and M Hirota and K Shimada and K Matsuura",
note = "Keywords: Bacteriochlorophylls; Chlorobi; Fluorescence; Quinones",
year = "2000",
language = "English",
volume = "72",
pages = "345--350",
journal = "Photochemistry and Photobiology",
issn = "0031-8655",
publisher = "Wiley-Blackwell",
number = "3",

}

RIS

TY - JOUR

T1 - Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones

AU - Tokita, S

AU - Frigaard, N-U

AU - Hirota, M

AU - Shimada, K

AU - Matsuura, K

N1 - Keywords: Bacteriochlorophylls; Chlorobi; Fluorescence; Quinones

PY - 2000

Y1 - 2000

N2 - The quenching of bacteriochlorophyll (BChl) c fluorescence in chlorosomes isolated from Chloroflexus aurantiacus was examined by the addition of various benzoquinones, naphthoquinones (NQ), and anthraquinones (AQ). Many quinones showed strong quenching in the micromolar or submicromolar range. The number of quinone molecules bound to the chlorosomes was estimated to be as small as one quinone molecule per 50 BChl c molecules. Quinones which exhibit a high quenching effect have sufficient hydrophobicity and one or more hydroxyl groups in the alpha positions of NQ and AQ. Chlorobiumquinone has been suggested to be essential for the endogenous quenching of chlorosome fluorescence in Chlorobium tepidum under oxic conditions. We suggest that the quenching effect of chlorobiumquinone in chlorosomes from Chl. tepidum is related to the 1'-oxo group neighboring the dicarbonyl group.

AB - The quenching of bacteriochlorophyll (BChl) c fluorescence in chlorosomes isolated from Chloroflexus aurantiacus was examined by the addition of various benzoquinones, naphthoquinones (NQ), and anthraquinones (AQ). Many quinones showed strong quenching in the micromolar or submicromolar range. The number of quinone molecules bound to the chlorosomes was estimated to be as small as one quinone molecule per 50 BChl c molecules. Quinones which exhibit a high quenching effect have sufficient hydrophobicity and one or more hydroxyl groups in the alpha positions of NQ and AQ. Chlorobiumquinone has been suggested to be essential for the endogenous quenching of chlorosome fluorescence in Chlorobium tepidum under oxic conditions. We suggest that the quenching effect of chlorobiumquinone in chlorosomes from Chl. tepidum is related to the 1'-oxo group neighboring the dicarbonyl group.

M3 - Journal article

C2 - 10989605

VL - 72

SP - 345

EP - 350

JO - Photochemistry and Photobiology

JF - Photochemistry and Photobiology

SN - 0031-8655

IS - 3

ER -

ID: 14095712