Abstract
Low-phosphate (P) treatment decreased photosynthetic rates of maize plants (Zea mays L.) by about 50% 18 to 19 days after planting [Usuda and Shimogawara (1991) Plant Cell Physiol. 32: 497]. Low-P treatment decreased the enzyme activities differentially (by 0-49%). The significance of the decreased activities of pyruvate.Pj dikinase (by 29%), phosphoenolpyruvate carboxylase (by 49%), and ribulose 1,5-bisphosphate carboxylase (by 42%) in the detrimental effects of low-P treatments on the rates of photosynthesis is discussed.
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Claims 5
Claim · model-written summary
Low phosphate reduced maize photosynthetic rates by about 50% 18 to 19 days after planting.
- Treatment
- Low-phosphate (P) treatmente0
- Outcome
- photosynthetic ratese0
- Direction
- decreasede0
- Value
- about 50%e0
- Qualifier
- 18 to 19 days after plantinge0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low-phosphate (P) treatment decreased photosynthetic rates of maize plants (Zea mays L.) by about 50% 18 to 19 days after planting”
Claim · model-written summary
Low P decreased maize enzyme activities by 0-49%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low-P treatment decreased the enzyme activities differentially (by 0-49%)”
t0“Maize”
Claim · model-written summary
Low P decreased pyruvate.Pj dikinase activity by 29%.
- Treatment
- Low-P treatmente1
- Gene
- pyruvate.Pj dikinasee0
- Outcome
- activitiese0
- Direction
- decreasede0
- Value
- 29%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased activities of pyruvate.Pj dikinase (by 29%)”
e1“Low-P treatment decreased the enzyme activities differentially”
t0“Maize”
Claim · model-written summary
Low P decreased phosphoenolpyruvate carboxylase activity by 49%.
- Treatment
- Low-P treatmente1
- Gene
- phosphoenolpyruvate carboxylasee0
- Outcome
- activitiese0
- Direction
- decreasede0
- Value
- 49%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased activities of pyruvate.Pj dikinase (by 29%), phosphoenolpyruvate carboxylase (by 49%)”
e1“Low-P treatment decreased the enzyme activities differentially”
t0“Maize”
Claim · model-written summary
Low P decreased ribulose 1,5-bisphosphate carboxylase activity by 42%.
- Treatment
- Low-P treatmente1
- Gene
- ribulose 1,5-bisphosphate carboxylasee0
- Outcome
- activitiese0
- Direction
- decreasede0
- Value
- 42%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased activities of pyruvate.Pj dikinase (by 29%), phosphoenolpyruvate carboxylase (by 49%), and ribulose 1,5-bisphosphate carboxylase (by 42%)”
e1“Low-P treatment decreased the enzyme activities differentially”
t0“Maize”
The same questions in other papers
phosphorus · soil: biology · Zea mays (maize)Positive and negative results
5 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
11 papers more in this group
See all 15 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.