Abstract:
:A phylogeny-guided approach was applied to screen endophytic fungi containing type I polyketide synthase (PKS I) biosynthetic gene sequences and aimed to correlate genotype to chemotype for the discovery of novel bioactive polyketides. Salicorn 58, which was identified as Talaromyces funiculosus based on its internal transcribed spacer (ITS) and ribosomal large-subunit (LSU) DNA sequences, showed significant target bands. A chemical investigation of the culture of Salicorn 58 was allowed for the isolation of a new polyketide, Talafun (1), and a new natural product, N-(2'-hydroxy-3'-octadecenoyl)-9-methyl-4,8-sphingadienin (2), together with six known compounds, including chrodrimanin A (3), chrodrimanin B (4), N-(4-hydroxy-2-methoxyphenyl) acetamide (5), butyl β-glucose (6), 3β,15β-dihydroxyl-(22E, 24R)-ergosta-5,8(14),22-trien-7-dione (7), and (3β,5a,8a,22E)-5,8-epidioxyergosta-6,22-dien-3-ol (8). Their chemical structures were elucidated by extensive spectroscopic analysis and electro circular dichroism (ECD) spectrum calculations. Antioxidant experiments revealed that compound 5 showed strong ABTS(+) radical scavenging activity with an IC50 value of 11.43 ± 1.61 μM and potent ferric reducing activity (FRAP assay) with FRAP value of 187.52 ± 2.97. Antimicrobial assays revealed that compounds 1 and 4 showed high levels of selectivity toward Escherichia coli with MIC values of 18 ± 0.40 and 43 ± 0.52 μM, respectively. Compounds 2 and 3 exhibited broad-spectrum antimicrobial activity against Staphylococcus aureus, Mycobacterium smegmatis, Micrococcus tetragenus, Mycobacterium phlei, and E. coli, respectively. The results from the current research highlight the advantage of phylogeny-guided pipeline for the screening of new polyketides from endophytic fungi containing PKS I genes.
journal_name
Appl Microbiol Biotechnoljournal_title
Applied microbiology and biotechnologyauthors
Guo J,Ran H,Zeng J,Liu D,Xin Zdoi
10.1007/s00253-016-7311-4subject
Has Abstractpub_date
2016-06-01 00:00:00pages
5323-38issue
12eissn
0175-7598issn
1432-0614pii
10.1007/s00253-016-7311-4journal_volume
100pub_type
杂志文章abstract::The thioredoxin system plays a critical role in maintaining the cytoplasm redox state, participating in functions that are important to the cellular viability of fungi. Although functional and structural information on targets in human pathogenic fungi has been scarcely described in the literature, such studies are es...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-015-7223-8
更新日期:2016-05-01 00:00:00
abstract::Clean-up of vinyl chloride (VC)-contaminated groundwater could be enhanced by stimulating aerobic VC-oxidizing bacterial populations (e.g., methanotrophs) with amendments such as molecular oxygen. In addition, ethene gas injection could further stimulate a different group of aerobic ethene- and VC-oxidizing bacteria c...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-015-6771-2
更新日期:2015-11-01 00:00:00
abstract::Potato pulp is a poorly utilized, high-volume co-processing product resulting from industrial potato starch manufacturing. Potato pulp mainly consists of the tuber plant cell wall material and is particularly rich in pectin, notably galactan branched rhamnogalacturonan I type pectin which has previously been shown to ...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-011-3092-y
更新日期:2011-05-01 00:00:00
abstract::Yeast artificial chromosomes (YAC) splitting technology was developed as a means to subclone any desired region of eukaryotic chromosomes from one YAC into new YACs. In the present study, the conventional YAC splitting technology was improved by incorporating PCR-mediated chromosome splitting technique and by adding a...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-005-1970-x
更新日期:2005-11-01 00:00:00
abstract::This paper reports a novel integrated metabolic pathway of amino acid production through the utilization of phenol in Corynebacterium glutamicum. In the presence of 8.5 mM phenol, the level of glutamate and proline production increased up to 1.2- and 14.7-fold, respectively, compared to the control condition. In addit...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-009-2206-2
更新日期:2010-01-01 00:00:00
abstract::Previously, we reported that the expression of Bombyx mori 30Kc6 gene in Chinese hamster ovary (CHO) cells increases recombinant protein production by both inhibiting apoptosis and enhancing specific productivity. In this study, in order to gain a thorough understanding of the roles of 30Kc6 gene in antibody productio...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-012-3899-1
更新日期:2012-06-01 00:00:00
abstract::Some bacterial cultures are capable of growth on caprolactam as sole carbon and nitrogen source, but the enzymes of the catabolic pathway have not been described. We isolated a caprolactam-degrading strain of Pseudomonas jessenii from soil and identified proteins and genes putatively involved in caprolactam metabolism...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-018-9073-7
更新日期:2018-08-01 00:00:00
abstract::Bacterial polyhedral organelles are extremely large macromolecular complexes consisting of metabolic enzymes encased within a multiprotein shell that is somewhat reminiscent of a viral capsid. Recent investigations suggest that polyhedral organelles are widely used by bacteria for optimizing metabolic processes. The d...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s00253-005-0295-0
更新日期:2006-05-01 00:00:00
abstract::The kinetics of growth, acid and solvent production in batch culture of Clostridium pasteurianum DSMZ 525 were examined in mixed or mono-substrate fermentations. In pH-uncontrolled batch cultures, the addition of butyric acid or glucose significantly enhanced n-butanol production and the ratio of butanol/1,3-propanedi...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-014-5588-8
更新日期:2014-05-01 00:00:00
abstract::Gelatin zymography revealed the presence of proteolytic activity in conditioned medium (CM) from a serum-free, non-infected Spodoptera frugiperda, Sf9 insect cell culture. Two peptidase bands at about 49 and 39 kDa were detected and found to be proform and active form of the same enzyme. The 49-kDa form was visible on...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-005-0181-9
更新日期:2006-07-01 00:00:00
abstract::High poly(3-hydroxybutyrate) (PHB) content and volumetric productivity were achieved by fed-batch culture of Halomonas boliviensis using a defined medium. Initial shake flask cultivations in a minimal medium revealed that the growth of H. boliviensis was supported only when the medium was supplemented with aspartic ac...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-007-1297-x
更新日期:2008-02-01 00:00:00
abstract::Immobilization has been reported as an efficient technique to address the bacterial vulnerability for application in bio self-healing concrete. In this study, for the first time, magnetic iron oxide nanoparticles (IONs) are being practically employed as the protective vehicle for bacteria to evaluate the self-healing ...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-018-8782-2
更新日期:2018-03-01 00:00:00
abstract::Nitrilase-mediated hydrolysis of isobutylsuccinonitrile (IBSN) is a highly attractive approach for (S)-3-cyano-5-methylhexanoic acid ((S)-CMHA), the critical chiral intermediate of pregabalin. In this study, a robust nitrilase from Arabis alpina (AaNIT) was screened and engineered. The N258D mutant was obtained with h...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-019-09857-1
更新日期:2019-07-01 00:00:00
abstract::We have successfully created a novel yeast strain able to monitor changes in environmental conditions by displaying either green fluorescent protein (GFP) from Aequorea victoria or blue fluorescent protein (BFP), a variant of GFP, on its cell surface as a visible reporter. For the display of these fluorescent proteins...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s002530100767
更新日期:2001-11-01 00:00:00
abstract::D-Xylonic acid is a versatile platform chemical with reported applications as complexing agent or chelator, in dispersal of concrete, and as a precursor for compounds such as co-polyamides, polyesters, hydrogels and 1,2,4-butanetriol. With increasing glucose prices, D-xylonic acid may provide a cheap, non-food derived...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s00253-012-4288-5
更新日期:2012-10-01 00:00:00
abstract::Polyketides, such as erythromycin, are complex natural products with diverse therapeutic applications. They are synthesized by multi-modular megaenzymes, so-called polyketide synthases (PKSs). The macrolide core of erythromycin, 6-deoxyerythronolide B (6dEB), is produced by the deoxyerythronolide B synthase (DEBS) tha...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-015-6990-6
更新日期:2016-02-01 00:00:00
abstract::Orange peel waste (OPW), the primary byproduct of the juice extraction process, is annually generated in massive amounts (21 Mton), and its aqueous extraction in biorefining operations yields a liquid fraction, referred to as orange peel extract (OPE). Although OPE contains significant amounts of easily assimilable ca...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-020-10579-y
更新日期:2020-05-01 00:00:00
abstract::Under specific environmental conditions, Pseudomonas aeruginosa produces a biodegradable surfactant rhamnolipid. Evidences suggest that this biosurfactant is involved in protecting cells against oxidative stress; however, the effects of oxidative stress on its production and other virulence factors are still unclear. ...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-012-4258-y
更新日期:2012-09-01 00:00:00
abstract::Lactococcus lactis is the most important starter culture organism used in the dairy industry. Although L. lactis species have been awarded Qualified Presumption of Safety status by the European Food Safety Authority, and Generally Regarded as Safe status by the US Food and Drug Administration, some strains can produce...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-014-6130-8
更新日期:2015-01-01 00:00:00
abstract::There is an error in the Original Publication of this paper for "Acknowledgements" section was missing. ...
journal_title:Applied microbiology and biotechnology
pub_type: 已发布勘误
doi:10.1007/s00253-020-10424-2
更新日期:2020-03-01 00:00:00
abstract::Acyl-CoAs are crucial compounds involved in essential metabolic pathways such as the Krebs cycle and lipid, carbohydrate, and amino acid metabolisms, and they are also key signal molecules involved in the transcriptional regulation of lipid biosynthesis in many organisms. In this study, we took advantage of the high s...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-016-7635-0
更新日期:2016-08-01 00:00:00
abstract::Hydroxy fatty acids (HFA) have gained importance because of their special properties such as higher viscosity and reactivity compared with other non-hydroxy fatty acids. The bacterial isolate Pseudomonas aeruginosa (PR3) was reported to produce mono-, di-, and trihydroxy fatty acids from different unsaturated fatty ac...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-006-0662-5
更新日期:2007-02-01 00:00:00
abstract::The Ser-170 residue of a trypsin-like enzyme from Streptomyces fradiae (SFT), which is considered to be the active-site serine, was replaced with alanine by site-directed mutagenesis to improve the affinity chromatography step for a Kazal-type trypsin inhibitor pancreatic secretory trypsin inhibitor (PSTI). The result...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s002530050777
更新日期:1996-08-01 00:00:00
abstract::Poly(hydroxyalkanoates) (PHAs) constitute biodegradable polyesters and are considered among the most promising candidates to replace common petrochemical plastics in various applications. To date, all commercial processes for PHA production employ microbial discontinuous fed-batch fermentations. These processes featur...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-011-3260-0
更新日期:2011-07-01 00:00:00
abstract::A heat-stable sarcosine oxidase produced by Bacillus sp. BSD-8 (SOX) had been studied and its complete gene sequence, which contained 1,164 bp nucleotides and encoded a protein of 387 amino acids, was obtained by DNA Walking method. The sox gene was cloned and functionally overexpressed in E. coli and the recombinant ...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-006-0502-7
更新日期:2006-12-01 00:00:00
abstract::Carotenoids such as beta-carotene, lycopene, and antheraxanthin have plenty of scientific and commercial value. The comprehensive investigation of carotenoids drives people to improve and develop all kinds of analytical techniques to approach or even achieve "versatile" analysis. The metabolic engineering efforts in p...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s00253-009-2069-6
更新日期:2009-07-01 00:00:00
abstract::Silver nanoparticles (AgNPs) have received tremendous attention due to their significant antimicrobial properties. Large numbers of reports are available on the physical, chemical, and biological syntheses of colloidal AgNPs. Since there is a great need to develop ecofriendly and sustainable methods, biological system...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s00253-015-6622-1
更新日期:2015-06-01 00:00:00
abstract::Isoprenoids, also referred to as terpenes, are the most diverse class of natural products appearing in a variety of natural sources, specifically in higher plants, and have a wide range of biological functions. This review describes novel or recent approaches and achievements in pathway engineering of Escherichia coli...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s00253-009-2166-6
更新日期:2009-10-01 00:00:00
abstract::The fungal conversions of sulfur-containing heterocyclic compounds were investigated using the lignin-degrading basidiomycete Coriolus versicolor. The fungus metabolized a series of sulfur compounds--25 structurally related thiophene derivatives--via several different pathways. Under primary metabolic conditions, C. v...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-001-0926-z
更新日期:2002-03-01 00:00:00
abstract::Soil microbial autotrophs play a significant role in CO2 fixation in terrestrial ecosystem, particularly in vegetation-constrained ecosystems with environmental stresses, such as the Tibetan Plateau characterized by low temperature and high UV. However, soil microbial autotrophic communities and their driving factors ...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
doi:10.1007/s00253-015-6723-x
更新日期:2015-10-01 00:00:00