(± )-3 ,4 -Dihydro-5-methyl-4-n-alkyl-und -alkenyl-2H-pyrrole aus Pseudomonas putida [1] / (± )-3,4-Dihydro-5-methyl-4-n-alkyl and -alkenyl-2H-pyrroles from Pseudomonas putida [1]

Plant rhizosphere soil houses complex microbial communities in which microorganisms are often involved in intraspecies as well as interspecies and inter-kingdom signalling networks. Some members of these networks can improve plant health thanks to an important diversity of bioactive secondary metabolites. In this competitive environment, the ability to form biofilms may provide major advantages to microorganisms. With the aim of highlighting the impact of bacterial lifestyle on secondary metabolites production, we performed a metabolomic analysis on four fluorescent Pseudomonas strains cultivated in planktonic and biofilm colony conditions. The untargeted metabolomic analysis led to the detection of hundreds of secondary metabolites in culture extracts. Comparison between biofilm and planktonic conditions showed that bacterial lifestyle is a key factor influencing Pseudomonas metabolome. More than 50% of the detected metabolites were differentially produced according to planktonic or biofilm lifestyles, with the four Pseudomonas strains overproducing several secondary metabolites in biofilm conditions. In parallel, metabolomic analysis associated with genomic prediction and a molecular networking approach enabled us to evaluate the impact of bacterial lifestyle on chemically identified secondary metabolites, more precisely involved in microbial interactions and plant-growth promotion. Notably, this work highlights the major effect of biofilm lifestyle on acyl-homoserine lactone and phenazine production in P. chlororaphis strains.

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Secondary metabolites from plant‐associated Pseudomonas are overproduced in biofilm

Rieusset

Rey

Müller

et al. 2020

Microbial Biotechnology

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Secondary metabolites from fluorescent pseudomonads

Budzikiewicz

1993

FEMS Microbiology Letters

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201

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(± )-3 ,4 -Dihydro-5-methyl-4-n-alkyl-und -alkenyl-2H-pyrrole aus Pseudomonas putida [1] / (± )-3,4-Dihydro-5-methyl-4-n-alkyl and -alkenyl-2H-pyrroles from Pseudomonas putida [1]

Abstract: Abstract From the culture medium of Pseudomonas putida several derivatives of 3,4-dihydro-5-methyl- 2H-pyrrole were isolated differing in the C-4 substituent (unbranched C11, C13 and C15 alkyl and alkenyl groups), the structures of which could be elucidated

Cited by 2 publications

References 12 publications

Secondary metabolites from plant‐associated Pseudomonas are overproduced in biofilm

Secondary metabolites from plant‐associated Pseudomonas are overproduced in biofilm

Secondary metabolites from fluorescent pseudomonads

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