Abstract
Abstract— Soybeans (Glycine max [L.] Men. cvs. Essex and Williams) were grown in an unshaded greenhouse under two levels of biologically effective ultraviolet‐B (UV‐B BE ) radiation (effective daily dose: 0 and 11.5 kJ m ‐2 ) for 34 days. Ultraviolet‐B radiation reduced leaf area and total plant mass in Essex but these parameters were unaffected in Williams. Differences in both anatomical and biochemical characteristics were found between cultivars. Some of these differences were inherently distinct between cultivars while others were variably induced by UV treatment. Specific leaf weight. an estimate of leaf thickness, was unchanged in Essex but increased in Williams with UV‐B irradiation. The relative increase in concentration of UV‐absorbing compounds in leaf tissues after UV‐B irradiation was greater in Williams. The composition of UV‐absorbing compounds in leaf tissues differed between the two cultivars but was unaffected by UV‐B radiation. Although total soluble proteins and total peroxidase activity were similar between cultivars, several electrophoretically distinct peroxidase activities were detected. Therefore, the intraspecific variation in UV‐B sensitivity found in soybean appears to be correlated with a suite of anatomical and biochemical differences, including leaf thickness, composition and concentration of UV‐absorbing compounds in leaf tissues, and possibly differences in peroxidase activities.
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Claims 10
Claim · model-written summary
UV-B reduced leaf area and total plant mass in Essex.
- Taxon
- SOYBEAN
Glycine maxt0 - Material
- Essexe0
- Treatment
- Ultraviolet‐B radiatione0
- Outcome
- leaf area and total plant masse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultraviolet‐B radiation reduced leaf area and total plant mass in Essex”
t0“SOYBEAN”
Claim · model-written summary
Leaf area and total plant mass were unaffected by UV-B in Williams.
- Taxon
- SOYBEANGlycine maxt0
- Material
- Williamse0
- Treatment
- Ultraviolet‐B radiationt1
- Outcome
- leaf area and total plant masst1
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these parameters were unaffected in Williams”
t0“SOYBEAN”
t1“Ultraviolet‐B radiation reduced leaf area and total plant mass”
Claim · model-written summary
Specific leaf weight was unchanged by UV-B in Essex.
- Taxon
- SOYBEANGlycine maxt0
- Material
- Essexe0
- Treatment
- UV‐B irradiationt1
- Outcome
- Specific leaf weighte0
- Direction
- unchangede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight. an estimate of leaf thickness, was unchanged in Essex”
t0“SOYBEAN”
t1“with UV‐B irradiation.”
Claim · model-written summary
Specific leaf weight increased with UV-B in Williams.
- Taxon
- SOYBEANGlycine maxt0
- Material
- Williamse0
- Treatment
- UV‐B irradiatione0
- Outcome
- Specific leaf weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Specific leaf weight. an estimate of leaf thickness, was unchanged in Essex but increased in Williams with UV‐B irradiation.”
t0“SOYBEAN”
Claim · model-written summary
The UV-B induced increase in leaf UV-absorbing compounds was greater in Williams.
- Taxon
- SOYBEANGlycine maxt0
- Material
- Williamse0
- Treatment
- UV‐B irradiatione0
- Outcome
- concentration of UV‐absorbing compounds in leaf tissuese0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relative increase in concentration of UV‐absorbing compounds in leaf tissues after UV‐B irradiation was greater in Williams.”
t0“SOYBEAN”
Claim · model-written summary
Leaf UV-absorbing compound composition differed between the cultivars.
- Taxon
- SOYBEANGlycine maxt0
- Outcome
- composition of UV‐absorbing compounds in leaf tissuese0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The composition of UV‐absorbing compounds in leaf tissues differed between the two cultivars”
t0“SOYBEAN”
Claim · model-written summary
UV-B did not alter leaf UV-absorbing compound composition.
- Taxon
- SOYBEANGlycine maxt0
- Treatment
- UV‐B radiatione0
- Outcome
- composition of UV‐absorbing compounds in leaf tissuese0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The composition of UV‐absorbing compounds in leaf tissues differed between the two cultivars but was unaffected by UV‐B radiation.”
t0“SOYBEAN”
Claim · model-written summary
Total soluble proteins and peroxidase activity were similar between cultivars.
- Taxon
- SOYBEANGlycine maxt0
- Outcome
- total soluble proteins and total peroxidase activitye0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total soluble proteins and total peroxidase activity were similar between cultivars”
t0“SOYBEAN”
Claim · model-written summary
Several electrophoretically distinct peroxidase activities were detected.
- Taxon
- SOYBEANGlycine maxt0
- Gene
- peroxidasee0
- Outcome
- electrophoretically distinct peroxidase activitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“several electrophoretically distinct peroxidase activities were detected”
t0“SOYBEAN”
Claim · model-written summary
Soybean UV-B sensitivity appeared correlated with anatomical and biochemical differences.
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- leaf tissuese0
- Outcome
- UV‐B sensitivitye0
- Qualifier
- anatomical and biochemical differencese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intraspecific variation in UV‐B sensitivity found in soybean appears to be correlated with a suite of anatomical and biochemical differences, including leaf thickness, composition and concentration of UV‐absorbing compounds in leaf tissues, and possibly differences in peroxidase activities.”
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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.