Differences in UV-B sensitivity between PSII from grana lamellae and stroma lamellae
(1996) In Journal of Photochemistry and Photobiology, B: Biology 34(1). p.35-38- Abstract
- UV-B treatment of thylakoid membranes or fractions derived from them accelerates the first rise (Fo---Fi phase) of variable fluorescence and slows down the second (Fi---Fm) rise. This can be observed for all membrane fractions but to different extents. The grana fraction is affected more by the UV-B treatment than are the intact thylakoids and the stroma lamella fraction. An exogenous electron acceptor, 2,6-dichloro-p-benzoquinone, inhibits both the initial and second rises of the fluorescence induction kinetics including the changes induced by UV-B. However, other electron acceptors, such as 2,5-dimethyl-p-benzoquinone and methyl viologen quench only the second rise of the curve. Oxygen evolution from grana-derived membranes is more... (More)
- UV-B treatment of thylakoid membranes or fractions derived from them accelerates the first rise (Fo---Fi phase) of variable fluorescence and slows down the second (Fi---Fm) rise. This can be observed for all membrane fractions but to different extents. The grana fraction is affected more by the UV-B treatment than are the intact thylakoids and the stroma lamella fraction. An exogenous electron acceptor, 2,6-dichloro-p-benzoquinone, inhibits both the initial and second rises of the fluorescence induction kinetics including the changes induced by UV-B. However, other electron acceptors, such as 2,5-dimethyl-p-benzoquinone and methyl viologen quench only the second rise of the curve. Oxygen evolution from grana-derived membranes is more sensitive to UV-B treatment than oxygen evolution from stroma lamella-derived membranes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/134483
- author
- Yu, Shi-Gui and Björn, Lars Olof LU
- organization
- publishing date
- 1996
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Stroma lamellae, Grana Lamellae, UV-B Sensitivity, Photosystem II
- in
- Journal of Photochemistry and Photobiology, B: Biology
- volume
- 34
- issue
- 1
- pages
- 35 - 38
- publisher
- Elsevier
- external identifiers
-
- scopus:0030175034
- ISSN
- 1011-1344
- DOI
- 10.1016/1011-1344(95)07243-8
- language
- English
- LU publication?
- yes
- id
- 899d2fc0-b59c-40b7-b0cd-20bb51e26175 (old id 134483)
- date added to LUP
- 2016-04-01 16:40:09
- date last changed
- 2022-01-28 21:17:42
@article{899d2fc0-b59c-40b7-b0cd-20bb51e26175, abstract = {{UV-B treatment of thylakoid membranes or fractions derived from them accelerates the first rise (Fo---Fi phase) of variable fluorescence and slows down the second (Fi---Fm) rise. This can be observed for all membrane fractions but to different extents. The grana fraction is affected more by the UV-B treatment than are the intact thylakoids and the stroma lamella fraction. An exogenous electron acceptor, 2,6-dichloro-p-benzoquinone, inhibits both the initial and second rises of the fluorescence induction kinetics including the changes induced by UV-B. However, other electron acceptors, such as 2,5-dimethyl-p-benzoquinone and methyl viologen quench only the second rise of the curve. Oxygen evolution from grana-derived membranes is more sensitive to UV-B treatment than oxygen evolution from stroma lamella-derived membranes.}}, author = {{Yu, Shi-Gui and Björn, Lars Olof}}, issn = {{1011-1344}}, keywords = {{Stroma lamellae; Grana Lamellae; UV-B Sensitivity; Photosystem II}}, language = {{eng}}, number = {{1}}, pages = {{35--38}}, publisher = {{Elsevier}}, series = {{Journal of Photochemistry and Photobiology, B: Biology}}, title = {{Differences in UV-B sensitivity between PSII from grana lamellae and stroma lamellae}}, url = {{http://dx.doi.org/10.1016/1011-1344(95)07243-8}}, doi = {{10.1016/1011-1344(95)07243-8}}, volume = {{34}}, year = {{1996}}, }