Abstract
The alt (albina-terminalis) mutant of Pisum sativum L. germinates normally, produces several nodes, and then above a sharp transition produces 2 to 3 bleached nodes, ceases growth, and eventually dies. Green nodes have normal chlorophyll content, absorption spectra, photosynthetic rates, and ultrastructure. In bleaching tissues, the chloroplasts degenerate rapidly, followed by extensive disruption and loss of the remaining cytoplasm and organelles. Application of tissue extracts of normal genotypes of pea, corn, and bean stimulates apical development of alt. The resulting tissues have essentially normal structure and function. Application of thiamine, thiamine monophosphate, and thiamine pyrophosphate also stimulate normal apical development at concentrations of 1 micromolar and above. Partial characterization of the stimulus from pea seed extracts is consistent with thiamine as the active factor.
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Claims 12
Claim · model-written summary
The alt mutant germinates normally, makes several nodes, then develops bleached nodes, stops growth and dies.
- Taxon
- Pisum sativum L.
Lathyrus oleraceuse0 - Material
- alt (albina-terminalis) mutante0
- Outcome
- produces 2 to 3 bleached nodes, ceases growth, and eventually diese0
- Value
- 2 to 3e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The alt (albina-terminalis) mutant of Pisum sativum L. germinates normally, produces several nodes, and then above a sharp transition produces 2 to 3 bleached nodes, ceases growth, and eventually dies.”
Claim · model-written summary
Green alt nodes had normal chlorophyll, absorption spectra, photosynthesis, and ultrastructure.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Organ / stage
- Green nodese0
- Outcome
- chlorophyll content, absorption spectra, photosynthetic rates, and ultrastructuree0
- Direction
- normale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Green nodes have normal chlorophyll content, absorption spectra, photosynthetic rates, and ultrastructure.”
e1“Pisum sativum L.”
Claim · model-written summary
Chloroplasts rapidly degenerated in bleaching tissue.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Organ / stage
- bleaching tissuese0
- Outcome
- chloroplasts degenerate rapidlye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In bleaching tissues, the chloroplasts degenerate rapidly, followed by extensive disruption and loss of the remaining cytoplasm and organelles.”
e1“Pisum sativum L.”
Claim · model-written summary
Bleaching tissue subsequently lost cytoplasm and other organelles.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Organ / stage
- bleaching tissuese0
- Outcome
- extensive disruption and loss of the remaining cytoplasm and organellese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In bleaching tissues, the chloroplasts degenerate rapidly, followed by extensive disruption and loss of the remaining cytoplasm and organelles.”
e1“Pisum sativum L.”
Claim · model-written summary
Pea tissue extracts stimulated alt apical development.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Material
- alte0
- Treatment
- tissue extracts of normal genotypes of peae0
- Outcome
- apical development of alte0
- Direction
- stimulatese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of tissue extracts of normal genotypes of pea, corn, and bean stimulates apical development of alt.”
e1“Pisum sativum L.”
Claim · model-written summary
Corn tissue extracts stimulated alt apical development.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Material
- alte0
- Treatment
- tissue extracts of normal genotypes of pea, corn, and beane0
- Outcome
- apical development of alte0
- Direction
- stimulatese0
- Qualifier
- corne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of tissue extracts of normal genotypes of pea, corn, and bean stimulates apical development of alt.”
e1“Pisum sativum L.”
Claim · model-written summary
Bean tissue extracts stimulated alt apical development.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Material
- alte0
- Treatment
- tissue extracts of normal genotypes of pea, corn, and beane0
- Outcome
- apical development of alte0
- Direction
- stimulatese0
- Qualifier
- beane0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of tissue extracts of normal genotypes of pea, corn, and bean stimulates apical development of alt.”
e1“Pisum sativum L.”
Claim · model-written summary
Extract-rescued tissues had essentially normal structure and function.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Outcome
- essentially normal structure and functione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The resulting tissues have essentially normal structure and function.”
e1“Pisum sativum L.”
Claim · model-written summary
Thiamine stimulated normal alt apical development at 1 micromolar and above.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- thiaminee0
- Outcome
- normal apical developmente0
- Direction
- stimulatee0
- Value
- 1 micromolar and abovee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of thiamine, thiamine monophosphate, and thiamine pyrophosphate also stimulate normal apical development at concentrations of 1 micromolar and above.”
e1“Pisum sativum L.”
Claim · model-written summary
Thiamine monophosphate stimulated normal alt apical development at 1 micromolar and above.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- thiamine monophosphatee0
- Outcome
- normal apical developmente0
- Direction
- stimulatee0
- Value
- 1 micromolar and abovee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of thiamine, thiamine monophosphate, and thiamine pyrophosphate also stimulate normal apical development at concentrations of 1 micromolar and above.”
e1“Pisum sativum L.”
Claim · model-written summary
Thiamine pyrophosphate stimulated normal alt apical development at 1 micromolar and above.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- thiamine pyrophosphatee0
- Outcome
- normal apical developmente0
- Direction
- stimulatee0
- Value
- 1 micromolar and abovee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of thiamine, thiamine monophosphate, and thiamine pyrophosphate also stimulate normal apical development at concentrations of 1 micromolar and above.”
e1“Pisum sativum L.”
Claim · model-written summary
Partial characterization was consistent with thiamine being the pea-extract active factor.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Compound
- thiaminee0
- Outcome
- active factore0
- Qualifier
- consistent withe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Partial characterization of the stimulus from pea seed extracts is consistent with thiamine as the active factor.”
e1“Pisum sativum L.”
The same questions in other papers
Zea mays subsp. mays · growth · Lathyrus oleraceus (pea)Positive and negative results
1 in the opposite direction
- negative
botanical · growth · Lathyrus oleraceus (pea)Positive and negative results
36 papers in the same direction as this paper · 24 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
58 papers more in this group
See all 62 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.