Abstract
1) The effect of the low temperature treatment (seed treatment: 3°C : 40 days) on the structure of the vegetative shoot apex and leaf in the wheat plant (variety : Satuki) was investigated histologically. 2) The distinct establishment of fundamental zonal structure (or Stratification) in the apex was accelerated by the treatment, and the volume of the apex in the treated plant became larger than that in control plants, owing to promoted cell division in every structural zone of the apex. 3) The leaf blades in the treated plant were larger both in length and width than that in control plants (except the Ist leaf length) and, according to the observation on the epidermal cells the increase of leaf area seemed to come chiefly from increase of the number of cells. 4) In the treated plant, the differentiation of stomatal rows, stomata and vascular bundles was accelerated and the remarkable development of mechanical tissues was observed. 5) From the facts above mentioned, it was concluded that the vegetative shoot apex and leaf in the wheat plant turned to more meristematic and differential condition by the low temperature treatment.
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Claims 8
Claim · model-written summary
Low-temperature treatment accelerated apex zonal structure formation.
- Taxon
- wheat plant
Triticum aestivumt0 - Treatment
- low temperature treatmentt0
- Outcome
- establishment of fundamental zonal structuree0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The distinct establishment of fundamental zonal structure (or Stratification) in the apex was accelerated by the treatment”
t0“low temperature treatment on the structure of the shoot apex and leaf in the wheat plant”
Claim · model-written summary
Treated wheat had larger shoot apices than controls.
- Taxon
- wheat plantTriticum aestivumt0
- Treatment
- low temperature treatmentt0
- Outcome
- volume of the apexe0
- Direction
- largere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the volume of the apex in the treated plant became larger than that in control plants”
t0“low temperature treatment on the structure of the shoot apex and leaf in the wheat plant”
Claim · model-written summary
Treatment promoted cell division in each apex zone.
- Taxon
- wheat plantTriticum aestivumt0
- Treatment
- low temperature treatmentt0
- Outcome
- cell division in every structural zone of the apexe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“owing to promoted cell division in every structural zone of the apex”
t0“low temperature treatment on the structure of the shoot apex and leaf in the wheat plant”
Claim · model-written summary
Treated leaf blades were longer, apart from the first leaf.
- Taxon
- wheat plantTriticum aestivumt0
- Treatment
- low temperature treatmentt0
- Outcome
- leaf blades in the treated plant were larger both in length and widthe0
- Direction
- largere0
- Qualifier
- except the Ist leaf lengthe0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf blades in the treated plant were larger both in length and width than that in control plants (except the Ist leaf length)”
t0“low temperature treatment on the structure of the shoot apex and leaf in the wheat plant”
Claim · model-written summary
The authors attributed increased leaf area chiefly to more epidermal cells.
- Taxon
- wheat plantTriticum aestivumt0
- Outcome
- increase of leaf areae0
- Qualifier
- increase of the number of cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase of leaf area seemed to come chiefly from increase of the number of cells”
t0“low temperature treatment on the structure of the shoot apex and leaf in the wheat plant”
Claim · model-written summary
Treatment accelerated differentiation of stomatal rows, stomata and vascular bundles.
- Taxon
- wheat plantTriticum aestivumt0
- Treatment
- low temperature treatmentt0
- Outcome
- differentiation of stomatal rows, stomata and vascular bundlese0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the differentiation of stomatal rows, stomata and vascular bundles was accelerated”
t0“low temperature treatment on the structure of the shoot apex and leaf in the wheat plant”
Claim · model-written summary
Treated wheat showed marked development of mechanical tissues.
- Taxon
- wheat plantTriticum aestivumt0
- Treatment
- low temperature treatmentt0
- Outcome
- development of mechanical tissuese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“remarkable development of mechanical tissues was observed”
t0“low temperature treatment on the structure of the shoot apex and leaf in the wheat plant”
Claim · model-written summary
The authors concluded that the treated apex and leaf became more meristematic and differentiated.
- Taxon
- wheat plantTriticum aestivume0
- Treatment
- low temperature treatmente0
- Outcome
- more meristematic and differential conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the vegetative shoot apex and leaf in the wheat plant turned to more meristematic and differential condition by the low temperature treatment”
The same questions in other papers
cold · physiology: gas exchange · Triticum aestivum (wheat)Positive and negative results
3 in the opposite direction
- negative
- negative
- negative
cold · growth · Triticum aestivum (wheat)Positive and negative results
33 papers in the same direction as this paper · 52 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- negative
84 papers more in this group
See all 88 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.