Abstract
Sugar beet (Beta vulgaris L.) plants injected with Cercospora beticola Sacc. as well as non-infected plants were grown under visible light with or without ultraviolet-B (UV-B, 280-320 nm) radiation for 40 days. An interaction between UV-B radiation and Cercospora leaf spot disease was observed, resulting in a large reduction in leaf chlorophyll content, dry weight of leaf laminae, petioles and storage roots. Lipid peroxidation in leaves also increased the most under the combined treatments. This was also true for ultraweak luminescence from both adaxial and abaxial leaf surfaces. However, no correlation between lipid peroxidation and ultraweak luminescence was observed. Ultraviolet-B radiation given alone appeared to have either a stimulating effect, giving an increase in dry weight of laminac and reducing lipid peroxidation, or no effect. This lack of effect was seen in the absence of change in dry weight of storage roots and chlorophyll content relative to controls. The study demonstrated a harmful interaction between UV-B radiation and Cercospora leaf spot disease on sugar beet.
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Claims 8
Claim · model-written summary
The combination of UV-B radiation and Cercospora leaf spot disease strongly reduced leaf chlorophyll content in sugar beet.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Treatment
- UV-B radiation and Cercospora leaf spot diseasee0
- Interactor
- Cercospora
Cercosporae0pathogen - Outcome
- leaf chlorophyll contente0
- Direction
- reductione0
- Qualifier
- largee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An interaction between UV-B radiation and Cercospora leaf spot disease was observed, resulting in a large reduction in leaf chlorophyll content”
t0“sugar beet plants”
Claim · model-written summary
The combination of UV-B radiation and Cercospora leaf spot disease strongly reduced dry weight of leaf laminae, petioles and storage roots in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- UV-B radiation and Cercospora leaf spot diseasee0
- Interactor
- CercosporaCercosporae0pathogen
- Outcome
- dry weight of leaf laminae, petioles and storage rootse0
- Direction
- reductione0
- Qualifier
- largee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An interaction between UV-B radiation and Cercospora leaf spot disease was observed, resulting in a large reduction in leaf chlorophyll content, dry weight of leaf laminae, petioles and storage roots”
t0“sugar beet plants”
Claim · model-written summary
Lipid peroxidation in sugar beet leaves increased most under the combined UV-B and Cercospora treatments.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- combined treatmentse0
- Outcome
- Lipid peroxidation in leavese0
- Direction
- increasede0
- Qualifier
- the moste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lipid peroxidation in leaves also increased the most under the combined treatments”
t0“sugar beet plants”
Claim · model-written summary
Ultraweak luminescence from both adaxial and abaxial leaf surfaces of sugar beet likewise increased most under the combined treatments.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- combined treatmentse0
- Outcome
- ultraweak luminescence from both adaxial and abaxial leaf surfacese0
- Direction
- increasede0
- Qualifier
- the moste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lipid peroxidation in leaves also increased the most under the combined treatments. This was also true for ultraweak luminescence from both adaxial and abaxial leaf surfaces”
t0“sugar beet plants”
Claim · model-written summary
No correlation was observed between lipid peroxidation and ultraweak luminescence in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Outcome
- correlation between lipid peroxidation and ultraweak luminescencee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no correlation between lipid peroxidation and ultraweak luminescence was observed”
t0“sugar beet plants”
Claim · model-written summary
UV-B radiation given alone appeared to increase dry weight of leaf laminae in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Ultraviolet-B radiation given alonee0
- Outcome
- dry weight of laminace0
- Direction
- increasee0
- Qualifier
- appeared toe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultraviolet-B radiation given alone appeared to have either a stimulating effect, giving an increase in dry weight of laminac and reducing lipid peroxidation, or no effect”
t0“sugar beet plants”
Claim · model-written summary
UV-B radiation given alone appeared to reduce lipid peroxidation in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Ultraviolet-B radiation given alonee0
- Outcome
- lipid peroxidatione0
- Direction
- reducinge0
- Qualifier
- appeared toe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultraviolet-B radiation given alone appeared to have either a stimulating effect, giving an increase in dry weight of laminac and reducing lipid peroxidation, or no effect”
t0“sugar beet plants”
Claim · model-written summary
UV-B radiation alone caused no change in dry weight of storage roots and chlorophyll content relative to controls in sugar beet.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Ultraviolet-B radiation given alonee0
- Outcome
- dry weight of storage roots and chlorophyll contente1
- Direction
- absence of changee1
- Comparator
- controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultraviolet-B radiation given alone”
e1“This lack of effect was seen in the absence of change in dry weight of storage roots and chlorophyll content relative to controls”
t0“sugar beet plants”
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See all 9 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.