Abstract
Five‐day‐old etiolated radish ( Raphanux salivux L. cv. Saxa) seedlings exposed to white continuous light in the presence of Cd 2+ (0.2 mM) showed characteristic changes in their light‐harvesting chlorophyll a/b protein complex II after 48 h of greening. The content of its oligomeric supramolecular form was greatly diminished with a concomitant increase in the level of the monomer. The isolation of highly purified light‐harvesting chlorophyll a/b protein complex II from control and Cd 2+ treated radish cotyledons and a detailed analysis of its structure and composition revealed that first of all, Cd 2+ altered the content of the specific phosphatidylglycerol fatty acid ‐ trans ‐Δ 3 ‐hexadecenoic acid, widely accepted as a component responsible for the oligomerization of this chlorophyll‐protein complex. This fatty acid in the thylakoid membrane phosphatidylglycerol pool seems to be very sensitive to different environmental stresses lowering its content, which indicates the vital significance of this component for the supramolecular organization and proper functioning of the light‐harvesting chlorophyll a/b protein complex II.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Cadmium greatly diminished oligomeric light-harvesting complex II content.
- Taxon
- radish
Raphanus sativust0 - Treatment
- Cadmiumt0
- Outcome
- content of its oligomeric supramolecular forme0
- Direction
- greatly diminishede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of its oligomeric supramolecular form was greatly diminished with a concomitant increase in the level of the monomer.”
t0“Cadmium‐induced changes in the composition and structure of the light‐harvesting chlorophyll a/b protein complex II in radish cotyledons”
Claim · model-written summary
Cadmium increased monomer content of the complex.
- Taxon
- radishRaphanus sativust0
- Treatment
- Cadmiumt0
- Outcome
- level of the monomere0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of its oligomeric supramolecular form was greatly diminished with a concomitant increase in the level of the monomer.”
t0“Cadmium‐induced changes in the composition and structure of the light‐harvesting chlorophyll a/b protein complex II in radish cotyledons”
Claim · model-written summary
Cadmium altered the amount of trans-Δ3-hexadecenoic acid in phosphatidylglycerol.
- Taxon
- radishRaphanus sativust0
- Treatment
- Cd 2+e0
- Outcome
- content of the specific phosphatidylglycerol fatty acid ‐ trans ‐Δ 3 ‐hexadecenoic acide0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd 2+ altered the content of the specific phosphatidylglycerol fatty acid ‐ trans ‐Δ 3 ‐hexadecenoic acid”
t0“radish cotyledons”
Claim · model-written summary
The authors suggest this fatty acid is important for complex II organization and function.
- Taxon
- radishRaphanus sativust0
- Outcome
- supramolecular organization and proper functioning of the light‐harvesting chlorophyll a/b protein complex IIe0
- Qualifier
- this componente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vital significance of this component for the supramolecular organization and proper functioning of the light‐harvesting chlorophyll a/b protein complex II.”
t0“radish cotyledons”
The same questions in other papers
cadmium atom · molecular: metabolites · Raphanus sativus (radish)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.