The significance of D-amino acids in soil, fate and utilization by microbes and plants: review and identification of knowledge gaps

Vranová, Valerie; Zahradníčková, Helena; Janouš, Dalibor; Skene, Keith R.; Matharu, Avtar S.; Rejšek, Klement; Formánek, Pavel

doi:10.1007/s11104-011-1059-5

Cited by 85 publications

(106 citation statements)

References 194 publications

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“…Soil biochemistry as a whole seems to be an important tool as well Collins, 2000, 2002;D'Anjou et al, 2012;Vranová et al, 2012;Vranová et al, 2013a). This is because it adequately takes into account the following; mineralisation processes, decomposition processes, enzymatic processes and soil organic compounds composition, soil polysaccharides and lipids in particular.…”

Section: Saccharidesmentioning

confidence: 99%

Soil Scientific Research Methods Used in Archaeology - Promising Soil Biochemistry: a Mini-review

Vranová

Marfo

Rejšek

2015

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Section: Saccharidesmentioning

confidence: 99%

Soil Scientific Research Methods Used in Archaeology - Promising Soil Biochemistry: a Mini-review

Vranová

Marfo

Rejšek

2015

Acta Univ. Agric. Silvic. Mendelianae Brun.

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“…These higher values observed in samples affected by fire can be explained by the atmospheric input during combustion-related soil re-suspension. Soils include bacterial material (Amelung et al, 2006;Simoneit et al, 2004;Vranova et al, 2012) and degraded material in vegetal waste.…”

Section: Discussionmentioning

confidence: 99%

Five primary sources of organic aerosols in the urban atmosphere of Belgrade (Serbia)

Zangrando

Barbaro

Kirchgeorg

et al. 2016

Science of The Total Environment

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Biomass burning and primary biological aerosol particles (PBAPs) represent important primary sources of organic compounds in the atmosphere. These particles and compounds are able to affect climate and human health. In the present work, using HPLC-orbitrapMS, we determined the atmospheric concentrations of molecular markers such as anhydrosugars and phenolic compounds that are specific for biomass burning, as well as the concentrations of sugars, alcohol sugars and D- and L-amino acids (D-AAs and L-AAs) for studying PBAPs in Belgrade (Serbia) aerosols collected in September–December 2008. In these samples, high levels of all these biomarkers were observed in October. Relative percentages of vanillic (V), syringic compounds (S) and p-coumaric acid (PA), as well as levoglucosan/mannosan (L/M) ratios, helped us discriminate between open fire events and wood combustion for domestic heating during the winter. L-AAs and D-AAs (1% of the total) were observed in Belgrade aerosols mainly in September–October. During open fire events, mean D-AA/L-AA (D/L) ratio values of aspartic acid, threonine, phenylalanine, alanine were significantly higher than mean D/L values of samples unaffected by open fire. High levels of AAs were observed for open biomass burning events. Thanks to four different statistical approaches, we demonstrated that Belgrade aerosols are affected by five sources: a natural source, a source related to fungi spores and degraded material and three other sources linked to biomass burning: biomass combustion in open fields, the combustion of grass and agricultural waste and the combustion of biomass in stoves and industrial plants. The approach employed in this work, involving the determination of specific organic tracers and statistical analysis, proved useful to discriminate among different types of biomass burning events

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“…D-Amino acids have been proved to be naturally present in many bacteria, plants, and animals [19][20][21], which exhibited widespread applications in industry, such as pharmaceutics, food, and cosmetics [5]. For example, D-amino acids can be used to synthetize the peptides which are very potent in the inhibition of HIV [22].…”

Section: Discussionmentioning

confidence: 99%

Efficient Production of Enantiopure d-Lysine from l-Lysine by a Two-Enzyme Cascade System

Wang

Cao

et al. 2016

Catalysts

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Abstract:The microbial production of D-lysine has been of great interest as a medicinal raw material. Here, a two-step process for D-lysine production from L-lysine by the successive microbial racemization and asymmetric degradation with lysine racemase and decarboxylase was developed. The whole-cell activities of engineered Escherichia coli expressing racemases from the strains Proteus mirabilis (LYR) and Lactobacillus paracasei (AAR) were first investigated comparatively. When the strain BL21-LYR with higher racemization activity was employed, L-lysine was rapidly racemized to give DL-lysine, and the D-lysine yield was approximately 48% after 0.5 h. Next, L-lysine was selectively catabolized to generate cadaverine by lysine decarboxylase. The comparative analysis of the decarboxylation activities of resting whole cells, permeabilized cells, and crude enzyme revealed that the crude enzyme was the best biocatalyst for enantiopure D-lysine production. The reaction temperature, pH, metal ion additive, and pyridoxal 5 -phosphate content of this two-step production process were subsequently optimized. Under optimal conditions, 750.7 mmol/L D-lysine was finally obtained from 1710 mmol/L L-lysine after 1 h of racemization reaction and 0.5 h of decarboxylation reaction. D-lysine yield could reach 48.8% with enantiomeric excess (ee) ≥ 99%.

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The significance of D-amino acids in soil, fate and utilization by microbes and plants: review and identification of knowledge gaps

Cited by 85 publications

References 194 publications

Soil Scientific Research Methods Used in Archaeology - Promising Soil Biochemistry: a Mini-review

Soil Scientific Research Methods Used in Archaeology - Promising Soil Biochemistry: a Mini-review

Five primary sources of organic aerosols in the urban atmosphere of Belgrade (Serbia)

Efficient Production of Enantiopure d-Lysine from l-Lysine by a Two-Enzyme Cascade System

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