Abstract
Dikegulac sodium foliar spray treatments of up to 500 mg/liter resulted in temporary arrest of apical development in Zinnia, Helianthus, and Chrysanthemum. Leaves expanding directly after treatment were convoluted and chlorotic but later greened. Later-developing leaves were irregularly shaped and green. There was some outgrowth of axillary buds. Histoautoradiographic studies showed that DNA synthesis was inhibited throughout the apical meristem, and normal cytohistological zonation was no longer apparent. In axillary buds DNA synthesis was detected. Whole plant autoradiography showed that dikegulac applied to a leaf was translocated to the apex. We suggest that dikegulac acts selectively on meristematic cells in the apex and developing leaf primordia and that minute amounts of the agent are sufficient to effect changes in apical development. Thus, we concluded that dikegulac probably acts "hormonally" on the apex, unlike X-irradiation and other chemical pinching agents.
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Claims 13
Claim · model-written summary
Dikegulac temporarily arrested apical development in Zinnia.
- Treatment
- Dikegulac sodium foliar spray treatments of up to 500 mg/litere0
- Outcome
- apical developmente0
- Direction
- arreste0
ZinniaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dikegulac sodium foliar spray treatments of up to 500 mg/liter resulted in temporary arrest of apical development in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
Dikegulac temporarily arrested apical development in Helianthus.
- Taxon
- Helianthus
Helianthuse0 - Treatment
- Dikegulac sodium foliar spray treatments of up to 500 mg/litere0
- Outcome
- apical developmente0
- Direction
- arreste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dikegulac sodium foliar spray treatments of up to 500 mg/liter resulted in temporary arrest of apical development in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
Dikegulac temporarily arrested apical development in Chrysanthemum.
- Taxon
- Chrysanthemum
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Chrysanthemume0 - Treatment
- Dikegulac sodium foliar spray treatments of up to 500 mg/litere0
- Outcome
- apical developmente0
- Direction
- arreste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“Dikegulac sodium foliar spray treatments of up to 500 mg/liter resulted in temporary arrest of apical development in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
Leaves expanding directly after dikegulac treatment were convoluted and chlorotic, then greened.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves expanding directly after treatment were convoluted and chlorotic but later greened.”
e1“in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
Later-developing leaves were irregularly shaped and green.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Later-developing leaves were irregularly shaped and green.”
e1“in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
Some axillary buds grew out after treatment.
- Outcome
- outgrowth of axillary budse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was some outgrowth of axillary buds.”
e1“in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
Dikegulac inhibited DNA synthesis throughout the apical meristem.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DNA synthesis was inhibited throughout the apical meristem”
t0“Dikegulac, a New Growth Regulator, on Apical Growth and Development of Three Compositae”
e1“Dikegulac sodium foliar spray treatments of up to 500 mg/liter resulted in temporary arrest of apical development in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
Normal cytohistological zonation was no longer apparent in the apical meristem.
- Outcome
- normal cytohistological zonation was no longer apparente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“normal cytohistological zonation was no longer apparent”
e1“in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
DNA synthesis was detected in axillary buds.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In axillary buds DNA synthesis was detected.”
e1“in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
Leaf-applied dikegulac was translocated to the apex.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dikegulac applied to a leaf was translocated to the apex.”
e1“in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
The authors suggest that dikegulac acts selectively on apical meristematic cells and developing leaf primordia.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dikegulac acts selectively on meristematic cells in the apex and developing leaf primordia”
e1“Dikegulac sodium foliar spray treatments of up to 500 mg/liter resulted in temporary arrest of apical development in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
The authors suggest minute amounts of dikegulac change apical development.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minute amounts of the agent are sufficient to effect changes in apical development”
e1“in Zinnia, Helianthus, and Chrysanthemum.”
Claim · model-written summary
The authors conclude that dikegulac probably acts hormonally on the apex.
- Outcome
- acts "hormonally" on the apexe0
- Qualifier
- unlike X-irradiation and other chemical pinching agentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dikegulac probably acts "hormonally" on the apex, unlike X-irradiation and other chemical pinching agents.”
e1“in Zinnia, Helianthus, and Chrysanthemum.”
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See all 28 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.