Abstract
Barley kernels germinated in water, in solutions of gibberellic acid (GA), in chloramphenicol sodium succinate (CAL), and in combinations of GA and CAL, for 5 days were analyzed daily to determine growth and α- and β-amylase, proteinase, and respiratory activities. Respiration, growth, and amylase activities were inhibited by CAL, but were accelerated by GA. Combined treatment of CAL and GA partially reversed the inhibitive effects of CAL on respiration and growth, but amylase development approached that of GA-treated seeds. No correlations were found between proteinase activity and respiration or α-or β-amylase activities. The significance of these findings with respect to α-amylase formation and mode of action of GA is discussed. It is suggested that α-amylase is synthesized during germination and that GA accelerates this synthesis.
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Claims 8
Claim · model-written summary
CAL inhibited barley respiration and growth.
- Taxon
- BARLEY
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Hordeum vulgaree0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Respiration, growth, and amylase activities were inhibited by CAL, but were accelerated by GA.”
t0“MECHANISM OF ACTION OF GIBBERELLIC ACID: INHIBITION OF α-AMYLASE DEVELOPMENT DURING GERMINATION OF BARLEY BY CHLORAMPHENICOL AND ITS REVERSAL BY GIBBERELLIC ACID”
Claim · model-written summary
CAL inhibited barley amylase activity.
- Taxon
- BARLEYHordeum vulgaree0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Respiration, growth, and amylase activities were inhibited by CAL, but were accelerated by GA.”
t0“MECHANISM OF ACTION OF GIBBERELLIC ACID: INHIBITION OF α-AMYLASE DEVELOPMENT DURING GERMINATION OF BARLEY BY CHLORAMPHENICOL AND ITS REVERSAL BY GIBBERELLIC ACID”
Claim · model-written summary
GA accelerated barley respiration and growth.
- Taxon
- BARLEYHordeum vulgaree0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Respiration, growth, and amylase activities were inhibited by CAL, but were accelerated by GA.”
t0“MECHANISM OF ACTION OF GIBBERELLIC ACID: INHIBITION OF α-AMYLASE DEVELOPMENT DURING GERMINATION OF BARLEY BY CHLORAMPHENICOL AND ITS REVERSAL BY GIBBERELLIC ACID”
Claim · model-written summary
GA accelerated barley amylase activity.
- Taxon
- BARLEYHordeum vulgaree0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Respiration, growth, and amylase activities were inhibited by CAL, but were accelerated by GA.”
t0“MECHANISM OF ACTION OF GIBBERELLIC ACID: INHIBITION OF α-AMYLASE DEVELOPMENT DURING GERMINATION OF BARLEY BY CHLORAMPHENICOL AND ITS REVERSAL BY GIBBERELLIC ACID”
Claim · model-written summary
GA partially reversed CAL inhibition of respiration and growth.
- Taxon
- BARLEYHordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined treatment of CAL and GA partially reversed the inhibitive effects of CAL on respiration and growth”
t0“MECHANISM OF ACTION OF GIBBERELLIC ACID: INHIBITION OF α-AMYLASE DEVELOPMENT DURING GERMINATION OF BARLEY BY CHLORAMPHENICOL AND ITS REVERSAL BY GIBBERELLIC ACID”
Claim · model-written summary
Amylase development with combined CAL and GA approached that of GA-treated seeds.
- Taxon
- BARLEYHordeum vulgaree0t0e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“amylase development approached that of GA-treated seeds.”
t0“MECHANISM OF ACTION OF GIBBERELLIC ACID: INHIBITION OF α-AMYLASE DEVELOPMENT DURING GERMINATION OF BARLEY BY CHLORAMPHENICOL AND ITS REVERSAL BY GIBBERELLIC ACID”
e3“Combined treatment of CAL and GA partially reversed the inhibitive effects of CAL on respiration and growth”
Claim · model-written summary
Proteinase activity did not correlate with respiration or either amylase activity.
- Taxon
- BARLEYHordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No correlations were found between proteinase activity and respiration or α-or β-amylase activities.”
t0“MECHANISM OF ACTION OF GIBBERELLIC ACID: INHIBITION OF α-AMYLASE DEVELOPMENT DURING GERMINATION OF BARLEY BY CHLORAMPHENICOL AND ITS REVERSAL BY GIBBERELLIC ACID”
Claim · model-written summary
Authors suggest α-amylase is synthesized during germination and GA accelerates this synthesis.
- Taxon
- BARLEYHordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is suggested that α-amylase is synthesized during germination and that GA accelerates this synthesis.”
t0“MECHANISM OF ACTION OF GIBBERELLIC ACID: INHIBITION OF α-AMYLASE DEVELOPMENT DURING GERMINATION OF BARLEY BY CHLORAMPHENICOL AND ITS REVERSAL BY GIBBERELLIC ACID”
The same questions in other papers
Gibberellic acid · physiology: enzyme activity · Hordeum vulgare (barley)Positive and negative results
13 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- no effect
13 papers more in this group
See all 17 papers →Gibberellic acid · physiology: respiration · Hordeum vulgare (barley)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.