Differential methods of inoculation of plant growth-promoting rhizobacteria induce synthesis of phenylalanine ammonia-lyase and phenolic compounds differentially in chickpea
Language English Country United States Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
17176768
DOI
10.1007/bf02931592
Knihovny.cz E-resources
- MeSH
- Antibiosis MeSH
- Ascomycota pathogenicity MeSH
- Pest Control, Biological methods MeSH
- Cicer metabolism microbiology MeSH
- Cinnamates metabolism MeSH
- Phenylalanine Ammonia-Lyase metabolism MeSH
- Plant Roots metabolism microbiology MeSH
- Chlorogenic Acid metabolism MeSH
- Gallic Acid metabolism MeSH
- Caffeic Acids metabolism MeSH
- Plant Diseases microbiology MeSH
- Pseudomonas aeruginosa growth & development metabolism MeSH
- Pseudomonas fluorescens growth & development metabolism MeSH
- Tannins metabolism MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- caffeic acid MeSH Browser
- Cinnamates MeSH
- cinnamic acid MeSH Browser
- Phenylalanine Ammonia-Lyase MeSH
- Chlorogenic Acid MeSH
- Gallic Acid MeSH
- Caffeic Acids MeSH
- Tannins MeSH
Foliar spray and micro-injection of plant growth-promoting rhizobacterial species, viz. Pseudomonas fluorescens and P. aeruginosa on chickpea induced synthesis of phenylalanine ammonia-lyase (PAL) when tested against Sclerotinia sclerotiorum. Induction of PAL was also associated with increased synthesis of phenolic compounds such as tannic, gallic, caffeic, chlorogenic and cinnamic acids. Treatment with P. fluorescens was found to be more effective in inducing phenolic compounds as compared to P. aeruginosa. However, persistence of PAL activity was observed more with P. aeruginosa. Although both the inoculation methods were effective, foliar application was found to be superior to micro-injection in terms of rapid PAL activity leading to the synthesis of phenolic compounds.
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