| Levels of ACC and related compounds in exudate and extracts of canola seeds treated with ACC deaminase-containing plant growth-promoting bacteria. | |
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MedLine Citation:
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PMID: 11358177 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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It was previously proposed that plant growth-promoting bacteria that possess 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase could utilize ACC that is present in the exudate of germinating canola seeds. The uptake and cleavage of ACC by these bacteria would lower the level of ACC, and thus ethylene within the plant, and reduce the extent of its inhibition on root elongation. To test part of the above mentioned model, ACC levels were monitored in canola seed tissues and exudate during germination. Lower amounts of ACC were present in the exudate and tissues of seeds treated with the plant growth-promoting bacterium Enterobacter cloacae CAL3, than in control seeds treated with MgSO4. The ACC-related compounds, alpha- and gamma-aminobutyric acids, both known to stimulate ethylene production, were also measured in the canola seed exudate and tissues. Approximately the same levels of alpha-aminobutyric acid were present in the exudates of the bacterium-treated seeds and the control seeds, but the amount of alpha-aminobutyric acid was lower in the tissues of the bacterium-treated seeds than in the control seeds. Smaller quantities of gamma-aminobutyric acid were seen in both the exudate and tissues of the E. cloacae CAL3-treated seeds than in the control seeds. |
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Authors:
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D M Penrose; B R Glick |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Canadian journal of microbiology Volume: 47 ISSN: 0008-4166 ISO Abbreviation: Can. J. Microbiol. Publication Date: 2001 Apr |
Date Detail:
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Created Date: 2001-05-18 Completed Date: 2001-10-11 Revised Date: 2012-07-13 |
Medline Journal Info:
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Nlm Unique ID: 0372707 Medline TA: Can J Microbiol Country: Canada |
Other Details:
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Languages: eng Pagination: 368-72 Citation Subset: IM |
Affiliation:
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Department of Biology, University of Waterloo, ON, Canada. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Amino Acids, Cyclic
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metabolism* Aminobutyric Acids / metabolism Brassica / metabolism* Carbon-Carbon Lyases / metabolism*, pharmacology Enterobacter cloacae / enzymology* Plants / metabolism*, microbiology Seeds / metabolism*, microbiology gamma-Aminobutyric Acid / metabolism |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids, Cyclic; 0/Aminobutyric Acids; 22059-21-8/1-aminocyclopropane-1-carboxylic acid; 56-12-2/gamma-Aminobutyric Acid; 80-60-4/alpha-aminobutyric acid; EC 3.5.99.7/1-aminocyclopropane-1-carboxylate deaminase; EC 4.1.-/Carbon-Carbon Lyases |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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