Abstract
2, 4-Dichlorophenoxyacetic acid caused a shortening of roots and shoots when mature seeds of Sorghum bicolor (L.) Moench cv. BT×3197 were germinated on Murashige and Skoog (MS) medium that contained 2,4-D. Shoot growth was restored with cytokinins. A callus formed at the nodal region, the further differentiation of which was determined by the ratio of 2,4-D and cytokinins in the initial culture medium. A high auxin to cytokinin ratio promoted primarily root differentiation while a high cytokinin to auxin ratio promoted multiple bud development. Isolated shoot apical meristem with the subtending node produced embryogenic callus at low cytokinin levels and green buds on high cytokinin levels when cultured in the presence of 2,4-D. It is concluded that cells potentially capable of differentiation into roots, somatic embryos or axillary buds are present in the first nodal region.
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Claims 9
Claim · model-written summary
2,4-D shortened roots of germinated sorghum seeds.
- Taxon
- Sorghum bicolor
Sorghum bicolore0 - Material
- BT×3197e0
- Treatment
- 2, 4-Dichlorophenoxyacetic acide0
- Outcome
- rootse0
- Direction
- shorteninge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2, 4-Dichlorophenoxyacetic acid caused a shortening of roots and shoots when mature seeds of Sorghum bicolor (L.) Moench cv. BT×3197 were germinated on Murashige and Skoog (MS) medium that contained 2,4-D”
Claim · model-written summary
2,4-D shortened shoots of germinated sorghum seeds.
- Taxon
- Sorghum bicolorSorghum bicolore0
- Material
- BT×3197e0
- Treatment
- 2, 4-Dichlorophenoxyacetic acide0
- Outcome
- shootse0
- Direction
- shorteninge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2, 4-Dichlorophenoxyacetic acid caused a shortening of roots and shoots when mature seeds of Sorghum bicolor (L.) Moench cv. BT×3197 were germinated on Murashige and Skoog (MS) medium that contained 2,4-D”
Claim · model-written summary
Cytokinins restored shoot growth.
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot growth was restored with cytokinins”
t0“Sorghum”
Claim · model-written summary
Callus formed at the sorghum nodal region.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A callus formed at the nodal region”
t0“Sorghum”
Claim · model-written summary
A high auxin to cytokinin ratio primarily promoted root differentiation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A high auxin to cytokinin ratio promoted primarily root differentiation”
t0“Sorghum”
Claim · model-written summary
A high cytokinin to auxin ratio promoted multiple bud development.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a high cytokinin to auxin ratio promoted multiple bud development”
t0“Sorghum”
Claim · model-written summary
Low cytokinin levels yielded embryogenic callus from shoot apical meristems with nodes in 2,4-D.
- Organ / stage
- shoot apical meristem with the subtending nodee0
- Treatment
- low cytokinin levelse0
- Outcome
- embryogenic calluse0
- Comparator
- high cytokinin levelse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolated shoot apical meristem with the subtending node produced embryogenic callus at low cytokinin levels and green buds on high cytokinin levels when cultured in the presence of 2,4-D”
t0“Sorghum”
Claim · model-written summary
High cytokinin levels yielded green buds from shoot apical meristems with nodes in 2,4-D.
- Organ / stage
- shoot apical meristem with the subtending nodee0
- Treatment
- high cytokinin levelse0
- Outcome
- green budse0
- Comparator
- low cytokinin levelse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolated shoot apical meristem with the subtending node produced embryogenic callus at low cytokinin levels and green buds on high cytokinin levels when cultured in the presence of 2,4-D”
t0“Sorghum”
Claim · model-written summary
The first nodal region was inferred to contain cells capable of root, embryo or axillary bud differentiation.
- Organ / stage
- first nodal regione0
- Outcome
- cells potentially capable of differentiation into roots, somatic embryos or axillary budse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cells potentially capable of differentiation into roots, somatic embryos or axillary buds are present in the first nodal region”
t0“Sorghum”
The same questions in other papers
class · growth · SorghumResults agree
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See all 11 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.