Abstract
Soybean (Glycine max (L.) Merr., ‘Hawkeye 63′) seedling segments from the zone of elongation and corn (Zea mays L., ‘Pioneer 3306) seedling segments were utilized to evaluate the antagonistic interaction of S -ethyl dipropylthiocarbamate (EPTC) and (2,4-dichlorophenoxy)-acetic acid (2,4-D). EPTC inhibited growth of the soybean and corn tissue, and 2,4-D in combination with EPTC caused an increase in growth compared to EPTC alone. The 2,4-D-enhanced growth in the presence of EPTC was due to an antagonism of the EPTC inhibition. Inhibition of soybean tissue growth by S -ethyl diisobutylthiocarbamate (butylate) also was antagonized by 2,4-D. Preincubation of soybean tissue in EPTC for 4 hr prior to the addition of 2,4-D did not prevent 2,4-D enhancement of growth. Conversely, the rate of growth was inhibited when EPTC was added after 4 hr of 2,4-D-enhanced growth. The addition of uridine to the incubation media with EPTC did not decrease the EPTC-inhibition of soybean tissue growth. This indicated that EPTC did not inhibit the synthesis of pyrimidine precursors. EPTC vapor losses from the incubation media reduced the inhibitory effect of EPTC to soybean tissue. Also, a growth reduction occurred when the amount of soybean tissue per unit of EPTC was increased.
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Claims 11
Claim · model-written summary
EPTC inhibited soybean tissue growth.
- Taxon
- soybean
Glycine maxe0 - Treatment
- EPTCe0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EPTC inhibited growth of the soybean and corn tissue”
Claim · model-written summary
EPTC inhibited corn tissue growth.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- EPTCe0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EPTC inhibited growth of the soybean and corn tissue”
Claim · model-written summary
Adding 2,4-D to EPTC increased soybean tissue growth relative to EPTC alone.
- Taxon
- soybeanGlycine maxe1
- Treatment
- 2,4-D in combination with EPTCe0
- Outcome
- growthe0
- Direction
- increasee0
- Comparator
- EPTC alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2,4-D in combination with EPTC caused an increase in growth compared to EPTC alone.”
e1“soybean and corn tissue”
Claim · model-written summary
Adding 2,4-D to EPTC increased corn tissue growth relative to EPTC alone.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- 2,4-D in combination with EPTCe0
- Outcome
- growthe0
- Direction
- increasee0
- Comparator
- EPTC alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2,4-D in combination with EPTC caused an increase in growth compared to EPTC alone.”
e1“soybean and corn tissue”
Claim · model-written summary
2,4-D antagonized butylate inhibition of soybean tissue growth.
- Taxon
- soybeanGlycine maxe0
- Treatment
- 2,4-De0
- Outcome
- soybean tissue growthe0
- Direction
- antagonizede0
- Comparator
- S -ethyl diisobutylthiocarbamate (butylate)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inhibition of soybean tissue growth by S -ethyl diisobutylthiocarbamate (butylate) also was antagonized by 2,4-D.”
Claim · model-written summary
Four hours of EPTC preincubation did not prevent 2,4-D enhancement of soybean growth.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Preincubation of soybean tissue in EPTC for 4 hr prior to the addition of 2,4-De0
- Outcome
- growthe0
- Direction
- enhancemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preincubation of soybean tissue in EPTC for 4 hr prior to the addition of 2,4-D did not prevent 2,4-D enhancement of growth.”
Claim · model-written summary
EPTC added after four hours of 2,4-D-enhanced growth inhibited soybean tissue growth rate.
- Taxon
- soybeanGlycine maxe1
- Treatment
- EPTC was added after 4 hr of 2,4-D-enhanced growthe0
- Outcome
- rate of growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rate of growth was inhibited when EPTC was added after 4 hr of 2,4-D-enhanced growth.”
e1“Preincubation of soybean tissue in EPTC”
Claim · model-written summary
Uridine with EPTC did not lessen EPTC inhibition of soybean growth.
- Taxon
- soybeanGlycine maxe0
- Treatment
- uridine to the incubation media with EPTCe0
- Outcome
- soybean tissue growthe0
- Direction
- did not decreasee0
- Comparator
- EPTCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of uridine to the incubation media with EPTC did not decrease the EPTC-inhibition of soybean tissue growth.”
Claim · model-written summary
The uridine result indicated that EPTC did not inhibit pyrimidine precursor synthesis.
- Taxon
- soybeanGlycine maxe1
- Treatment
- EPTCe0
- Outcome
- synthesis of pyrimidine precursorse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This indicated that EPTC did not inhibit the synthesis of pyrimidine precursors.”
e1“EPTC-inhibition of soybean tissue growth”
Claim · model-written summary
Loss of EPTC vapor from incubation media reduced its growth inhibition in soybean tissue.
- Taxon
- soybeanGlycine maxe0
- Treatment
- EPTC vapor losses from the incubation mediae0
- Outcome
- inhibitory effect of EPTC to soybean tissuee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EPTC vapor losses from the incubation media reduced the inhibitory effect of EPTC to soybean tissue.”
Claim · model-written summary
More soybean tissue per unit EPTC reduced growth.
- Taxon
- soybeanGlycine maxe0
- Treatment
- amount of soybean tissue per unit of EPTC was increasede0
- Outcome
- growthe0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a growth reduction occurred when the amount of soybean tissue per unit of EPTC was increased.”
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See all 53 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.