Abstract
Pattern of chlorophyll distribution cannot be typified by measuring chlorophyll content of samples collected throughout the leaf. Chlorophyll fluorescence imaging is a widely used method for mapping these changes. Cd caused strong chlorosis, which could be regener- ated by the addition of surplus iron. Regeneration in the presence or absence of Cd resulted in different leaf phenotypes with mosaic chlorophyll patterns. The parameters used for imaging chlorophyll distribution described in the literature (such as F690/F740) proved to be insufficiently sensitive to map the small-scale changes observed during regeneration of the chlorotic leaves of Cd treated plants. Imaging F690/F740 only gave a picture with little contrast in relation to spatial changes. In contrast, a new parameter, F690-F740 difference, was suitable for correctly imaging the changes in chlorophyll distribution during the surplus iron induced greening process..
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Claims 6
Claim · model-written summary
Cd caused strong chlorosis in poplar leaves.
PopulusNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd caused strong chlorosis, which could be regener- ated by the addition of surplus iron.”
t0“poplar leaves”
Claim · model-written summary
Surplus iron regenerated Cd-induced chlorosis.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd caused strong chlorosis, which could be regener- ated by the addition of surplus iron.”
t0“poplar leaves”
Claim · model-written summary
Regeneration with and without Cd produced different mosaic chlorophyll phenotypes.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regeneration in the presence or absence of Cd resulted in different leaf phenotypes with mosaic chlorophyll patterns.”
t0“poplar leaves”
Claim · model-written summary
F690/F740 was insufficiently sensitive to map small scale changes during regeneration.
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The parameters used for imaging chlorophyll distribution described in the literature (such as F690/F740) proved to be insufficiently sensitive to map the small-scale changes observed during regeneration of the chlorotic leaves of Cd treated plants.”
t0“poplar leaves”
Claim · model-written summary
F690/F740 images had little contrast for spatial changes.
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imaging F690/F740 only gave a picture with little contrast in relation to spatial changes.”
t0“poplar leaves”
Claim · model-written summary
F690-F740 correctly imaged chlorophyll changes during iron-induced greening.
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a new parameter, F690-F740 difference, was suitable for correctly imaging the changes in chlorophyll distribution during the surplus iron induced greening process”
t0“poplar leaves”
The same questions in other papers
cadmium atom · physiology: pigments · Populus (poplar)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
1 paper more in this group
See all 5 papers →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.