Abstract
The epidermis of Argenteum mutant of Pisum sativum L. and Vicia faba L. was shown to be effective in protecting mesophyll photosynthesis from UV‐C irradiation (peak 254 nm; 1.5 W m −2 ). These plants were chosen because it is easy to peel the epidermis from both sides of the leaf in Argenteum and the abaxial side in Vicia . Chlorophyll a fluorescence induction was decreased to the same extent by UV‐C radiation in both leaf sides when the epidermis was removed. The fluorescence from the leaf with the epidermis inact was not affected. With irradiation of leaves with higher intensity (3.4 W m −2 ) of UV‐C, the variable fluorescence was decreased by UV‐C impinging on the abaxial side, but not the adaxial side in either of the plant species. A methanol extract from the mutant Pisum epidermis had a high absorbance in the UV region, and the absorbance was more than two‐fold larger in adaxial epidermis than in abaxial epidermis. These results indicate that the epidermal layer, which contains substances that have high UV absorbance, protects mesophyll photosynthesis against UV radiation.
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 6
Claim · model-written summary
The epidermis protected mesophyll photosynthesis from UV-C irradiation in both species.
- Taxon
- Pisum sativum L. and Vicia faba L.
Lathyrus oleraceus
Vicia fabae1 - Material
- Argenteum mutante0
- Treatment
- UV‐C irradiation (peak 254 nm; 1.5 W m −2 )e0
- Outcome
- protecting mesophyll photosynthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The epidermis of Argenteum mutant of Pisum sativum L. and Vicia faba L. was shown to be effective in protecting mesophyll photosynthesis from UV‐C irradiation (peak 254 nm; 1.5 W m −2 ).”
e1“The epidermis of Argenteum mutant of Pisum sativum L. and Vicia faba L. was shown to be effective in protecting mesophyll photosynthesis from UV‐C irradiation (peak 254 nm; 1.5 W m −2 ).”
Claim · model-written summary
With epidermis removed, UV-C decreased chlorophyll fluorescence induction similarly on both leaf sides.
- Taxon
- Pisum sativum L. and Vicia faba L.Lathyrus oleraceusVicia fabae1
- Treatment
- UV‐C radiatione0
- Outcome
- Chlorophyll a fluorescence inductione0
- Direction
- decreasede0
- Qualifier
- when the epidermis was removede0
- Comparator
- both leaf sidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll a fluorescence induction was decreased to the same extent by UV‐C radiation in both leaf sides when the epidermis was removed.”
e1“The epidermis of Argenteum mutant of Pisum sativum L. and Vicia faba L. was shown to be effective in protecting mesophyll photosynthesis from UV‐C irradiation (peak 254 nm; 1.5 W m −2 ).”
Claim · model-written summary
Fluorescence of leaves with intact epidermis was unaffected.
- Taxon
- Pisum sativum L. and Vicia faba L.Lathyrus oleraceusVicia fabae1
- Outcome
- fluorescencee0
- Direction
- not affectede0
- Qualifier
- with the epidermis inacte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fluorescence from the leaf with the epidermis inact was not affected.”
e1“The epidermis of Argenteum mutant of Pisum sativum L. and Vicia faba L. was shown to be effective in protecting mesophyll photosynthesis from UV‐C irradiation (peak 254 nm; 1.5 W m −2 ).”
Claim · model-written summary
At higher UV-C intensity, abaxial irradiation decreased variable fluorescence.
- Taxon
- Pisum sativum L. and Vicia faba L.Lathyrus oleraceusVicia fabae1
- Organ / stage
- abaxial sidee0
- Treatment
- higher intensity (3.4 W m −2 ) of UV‐Ce0
- Outcome
- variable fluorescencee0
- Direction
- decreasede0
- Comparator
- adaxial sidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With irradiation of leaves with higher intensity (3.4 W m −2 ) of UV‐C, the variable fluorescence was decreased by UV‐C impinging on the abaxial side, but not the adaxial side in either of the plant species.”
e1“The epidermis of Argenteum mutant of Pisum sativum L. and Vicia faba L. was shown to be effective in protecting mesophyll photosynthesis from UV‐C irradiation (peak 254 nm; 1.5 W m −2 ).”
Claim · model-written summary
Pea epidermis methanol extract had high ultraviolet absorbance.
LathyrusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A methanol extract from the mutant Pisum epidermis had a high absorbance in the UV region”
e1“A methanol extract from the mutant Pisum epidermis had a high absorbance in the UV region”
Claim · model-written summary
Adaxial epidermal absorbance exceeded abaxial absorbance by more than twofold.
- Organ / stage
- adaxial epidermise0
- Outcome
- absorbancee0
- Direction
- largere0
- Value
- more than two‐folde0
- Comparator
- abaxial epidermise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the absorbance was more than two‐fold larger in adaxial epidermis than in abaxial epidermis.”
e1“A methanol extract from the mutant Pisum epidermis had a high absorbance in the UV region”
The same questions in other papers
uv · physiology: pigments · Lathyrus oleraceus (pea)Results differ
7 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
10 papers more in this group
See all 14 papers →uv · physiology: pigments · Vicia faba (faba bean)Results agree
1 paper in the same direction as this paper
- 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.