2019
DOI: 10.1186/s13068-019-1395-x
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Discovery of potential pathways for biological conversion of poplar wood into lipids by co-fermentation of Rhodococci strains

Abstract: BackgroundBiological routes for utilizing both carbohydrates and lignin are important to reach the ultimate goal of bioconversion of full carbon in biomass into biofuels and biochemicals. Recent biotechnology advances have shown promises toward facilitating biological transformation of lignin into lipids. Natural and engineered Rhodococcus strains (e.g., R. opacus PD630, R. jostii RHA1, and R. jostii RHA1 VanA−) have been demonstrated to utilize lignin for lipid production, and co-culture of them can promote l… Show more

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Cited by 76 publications
(54 citation statements)
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“…For instance, long-chain-fatty acid-CoA ligase (fadD2) and medium-long chain acyl-CoA dehydrogenase (fadE) were up-regulated 1.7fold and 1.4-fold, respectively. The oxidative stress generated by the aromatic compound degradation might be the reason for inducing the up-regulation of enzymes in fatty-acid oxidation, which was consistent with previous publications [13,37]. In contrast, several enzymes related to fatty-acid biosynthesis were down-regulated ( Figs.…”
Section: Resultssupporting
confidence: 92%
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“…For instance, long-chain-fatty acid-CoA ligase (fadD2) and medium-long chain acyl-CoA dehydrogenase (fadE) were up-regulated 1.7fold and 1.4-fold, respectively. The oxidative stress generated by the aromatic compound degradation might be the reason for inducing the up-regulation of enzymes in fatty-acid oxidation, which was consistent with previous publications [13,37]. In contrast, several enzymes related to fatty-acid biosynthesis were down-regulated ( Figs.…”
Section: Resultssupporting
confidence: 92%
“…The p-value for each enriched biological process was -log10 transformed, sorted and plotted from smallest to the largest in Origin software (version 9.6.0.172). The multi experiment viewer software (Mev, version 4.0) [37] was used to generate the heatmap for those proteins showed on average an increase >1.3 fold to compare the difference of protein expression of culture on glycerol or co-feeding glycerol with benzoate as the carbon source.…”
Section: Lc-ms/ms Label-free Proteomics Analysismentioning
confidence: 99%
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“…However, only a few bacteria (e.g., Streptomyces spp., Rhodococcus spp., and Nocardia spp.) and brown/white-rot fungi [33, 34] have an ability to depolymerize lignin, and their lignin depolymerization rate is too low to be useful on an industrial scale [26, 35].…”
Section: Biological and Hybrid Conversion Of Ligninmentioning
confidence: 99%
“…In a coculture system, the evaluation of antagonistic effects of the selected fungal cocultures is important for producing LDEs (Tesfaw and Assefa, 2014). Experimental evidence have suggested that the competition for space and nutrients may result in the enhanced degradation of lignin and in elevated production of LDEs such as MnP and Lac (Dong et al, 2014;Wang et al, 2014;Li et al, 2019). Additionally, in the different WRF coculture systems, the LDEs that play a major role in the lignin degradation process are also different.…”
Section: Introductionmentioning
confidence: 99%