Abstract
The role and metabolism of sucrose in cultured tassels of Zea mays cv. Oh43 were investigated. Although cultured tassels required 0.3 M (10% w/v) sucrose for "normal" development, they consumed less than 50% of it by day 21 of culture. The substitution of sucrose with mannitol inhibited both tassel growth and spikelet development. Sucrose served, therefore, mainly as an energy source and not as an osmoticum for cultured tassels during the first 15 days. However, from 15 days of culture onwards, tassels were shown to be capable of CO 2 fixation and consumed negligible amounts of sucrose until day 21 of culture. Nevertheless, the presence of sucrose was shown to be essential for differentiation of "normal" spikelets.
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Claims 7
Claim · model-written summary
Cultured maize tassels required 0.3 M (10% w/v) sucrose for normal development.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Studies on sucrose requirements of cultured maize tassels”
e1“Although cultured tassels required 0.3 M (10% w/v) sucrose for "normal" development, they consumed less than 50% of it by day 21 of culture”
Claim · model-written summary
Cultured maize tassels consumed less than 50% of the sucrose supplied by day 21 of culture.
- Organ / stage
- cultured tasselse1
- Treatment
- sucrosee1
- Outcome
- consumede1
- Value
- less than 50%e1
- Qualifier
- by day 21 of culturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Studies on sucrose requirements of cultured maize tassels”
e1“Although cultured tassels required 0.3 M (10% w/v) sucrose for "normal" development, they consumed less than 50% of it by day 21 of culture”
Claim · model-written summary
Substituting sucrose with mannitol inhibited tassel growth and spikelet development in cultured maize tassels.
- Treatment
- substitution of sucrose with mannitole2
- Outcome
- tassel growth and spikelet developmente2
- Direction
- inhibitede2
- Comparator
- sucrosee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Studies on sucrose requirements of cultured maize tassels”
e2“The substitution of sucrose with mannitol inhibited both tassel growth and spikelet development”
Claim · model-written summary
Sucrose served mainly as an energy source, not as an osmoticum, for cultured maize tassels during the first 15 days.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Studies on sucrose requirements of cultured maize tassels”
e3“Sucrose served, therefore, mainly as an energy source and not as an osmoticum for cultured tassels during the first 15 days”
Claim · model-written summary
From day 15 of culture onwards, cultured maize tassels were capable of CO2 fixation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Studies on sucrose requirements of cultured maize tassels”
e4“However, from 15 days of culture onwards, tassels were shown to be capable of CO 2 fixation”
Claim · model-written summary
Cultured maize tassels consumed negligible amounts of sucrose from day 15 to day 21 of culture.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Studies on sucrose requirements of cultured maize tassels”
e5“consumed negligible amounts of sucrose until day 21 of culture”
Claim · model-written summary
Sucrose was essential for differentiation of normal spikelets in cultured maize tassels.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Studies on sucrose requirements of cultured maize tassels”
e6“the presence of sucrose was shown to be essential for differentiation of "normal" spikelets”
The same questions in other papers
mannitol · growth · Zea mays (maize)Positive and negative results
8 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
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See all 10 papers →sucrose · growth · Zea mays (maize)Positive and negative results
1 paper in the same direction as this paper · 18 in the opposite direction
- positive
- positive
- positive
16 papers more in this group
See all 20 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.