Abstract
Although Lysobacter species are a remarkable source of natural compounds with antibacterial and antifungal activities, the ability of these bacteria to produce plant growth promoters remains practically unknown. In this work, the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC) has been isolated from the secretions of Lysobacter gummosus OH17, indicating the presence of an ACC deaminase, which was shown to be encoded in the gene peg_1256. The recombinant enzyme could not only deaminate ACC to provide 2-oxobutanoic acid but also catalyzed the amination of the 2-oxobutanoic acid, demonstrating, for the first time, that ACC deaminases can produce ACC. After the treatment of rice Oryza sativa Nipponbare plants with OH17 ACC deaminase, the ethylene production levels were 44% higher in comparison with the control experiments, allowing significant improvements in root, 10%, and stem, 14%, growth.
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Claims 3
Claim · model-written summary
OH17 ACC deaminase raised rice ethylene production by 44% versus control.
- Taxon
- Oryza sativa Nipponbare
Oryza sativae0 - Treatment
- OH17 ACC deaminasee0
- Gene
- OH17 ACC deaminasee0
- Outcome
- ethylene production levelse0
- Direction
- highere0
- Value
- 44%e0
- Comparator
- control experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After the treatment of rice Oryza sativa Nipponbare plants with OH17 ACC deaminase, the ethylene production levels were 44% higher in comparison with the control experiments, allowing significant improvements in root, 10%, and stem, 14%, growth.”
Claim · model-written summary
OH17 ACC deaminase improved rice root growth by 10%.
- Taxon
- Oryza sativa NipponbareOryza sativae0
- Organ / stage
- roote0
- Treatment
- OH17 ACC deaminasee0
- Gene
- OH17 ACC deaminasee0
- Outcome
- root, 10%, and stem, 14%, growthe0
- Direction
- improvementse0
- Value
- 10%e0
- Comparator
- control experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After the treatment of rice Oryza sativa Nipponbare plants with OH17 ACC deaminase, the ethylene production levels were 44% higher in comparison with the control experiments, allowing significant improvements in root, 10%, and stem, 14%, growth.”
Claim · model-written summary
OH17 ACC deaminase improved rice stem growth by 14%.
- Taxon
- Oryza sativa NipponbareOryza sativae0
- Organ / stage
- steme0
- Treatment
- OH17 ACC deaminasee0
- Gene
- OH17 ACC deaminasee0
- Outcome
- root, 10%, and stem, 14%, growthe0
- Direction
- improvementse0
- Value
- 14%e0
- Comparator
- control experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After the treatment of rice Oryza sativa Nipponbare plants with OH17 ACC deaminase, the ethylene production levels were 44% higher in comparison with the control experiments, allowing significant improvements in root, 10%, and stem, 14%, growth.”
The same questions in other papers
1-aminocyclopropanecarboxylic acid · physiology: hormones · Oryza sativa (rice)Positive and negative results
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- no effect
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See all 5 papers →1-aminocyclopropanecarboxylic acid · growth · Oryza sativa (rice)Positive and negative results
5 papers in the same direction as this paper · 4 in the opposite direction
- negative
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See all 10 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.