Andrea Porzel
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View article: A multiplex approach of MS, 1D‐, and 2D‐NMR metabolomics in plant ontogeny: A case study on <scp> <i>Clusia minor</i> </scp> L. organs (leaf, flower, fruit, and seed)
A multiplex approach of MS, 1D‐, and 2D‐NMR metabolomics in plant ontogeny: A case study on <span> <i>Clusia minor</i> </span> L. organs (leaf, flower, fruit, and seed) Open
Introduction The genus Clusia L. is mostly recognised for the production of prenylated benzophenones and tocotrienol derivatives. Objectives The objective of this study was to map metabolome variation within Clusia minor organs at differen…
View article: Metabolic arms race between a plant and a fungal pathogen
Metabolic arms race between a plant and a fungal pathogen Open
In this work, we uncover a metabolite interaction between barley and the fungal pathogen Bipolaris sorokiniana ( Bs ), involving hordedanes, a previously undescribed set of labdane-related diterpenoids with antimicrobial properties. Bs inf…
View article: Comparison of <i>Balanites aegyptiaca</i> parts: metabolome providing insights into plant health benefits and valorization purposes as analyzed using multiplex GC-MS, LC-MS, NMR-based metabolomics, and molecular networking
Comparison of <i>Balanites aegyptiaca</i> parts: metabolome providing insights into plant health benefits and valorization purposes as analyzed using multiplex GC-MS, LC-MS, NMR-based metabolomics, and molecular networking Open
Balanites aegyptiaca (L.) Delile (Zygophyllaceae), also known as the desert date, is an edible fruit-producing tree popular for its nutritional and several health benefits.
View article: Structural Elucidation of an Atropisomeric Entcassiflavan-(4β→8)-Epicatechin Isolated from Dalbergia monetaria L.f. Based on NMR and ECD Calculations in Comparison to Experimental Data
Structural Elucidation of an Atropisomeric Entcassiflavan-(4β→8)-Epicatechin Isolated from Dalbergia monetaria L.f. Based on NMR and ECD Calculations in Comparison to Experimental Data Open
A rare dihydoxyflavan-epicatechin proanthocyanidin, entcassiflavan-(4β→8)-epicatechin, was isolated from Dalbergia monetaria, a plant widely used by traditional people from the Amazon to treat urinary tract infections. The constitution and…
View article: NMR Metabolome-Based Classification of Cymbopogon Species: a Prospect for Phyto-equivalency of its Different Accessions Using Chemometric Tools
NMR Metabolome-Based Classification of Cymbopogon Species: a Prospect for Phyto-equivalency of its Different Accessions Using Chemometric Tools Open
Cymbopogon species are widely distributed worldwide and known for their high essential oil content with potential commercial and medicinal benefits justifying for their inclusion in food and cosmetics. Most species received scant character…
View article: Rare Glutamic Acid Methyl Ester Peptaibols from Sepedonium ampullosporum Damon KSH 534 Exhibit Promising Antifungal and Anticancer Activity
Rare Glutamic Acid Methyl Ester Peptaibols from Sepedonium ampullosporum Damon KSH 534 Exhibit Promising Antifungal and Anticancer Activity Open
Fungal species of genus Sepedonium are rich sources of diverse secondary metabolites (e.g., alkaloids, peptaibols), which exhibit variable biological activities. Herein, two new peptaibols, named ampullosporin F (1) and ampullosporin G (2)…
View article: A barley gene cluster for the biosynthesis of diterpenoid phytoalexins
A barley gene cluster for the biosynthesis of diterpenoid phytoalexins Open
Phytoalexins are specialized metabolites that are induced upon pathogen infection and contribute to the defense arsenal of plants. Maize and rice produce multiple diterpenoid phytoalexins and there is evidence from genomic sequences that o…
View article: Sugar Containing Compounds and Biological Activities of Lagochilus setulosus
Sugar Containing Compounds and Biological Activities of Lagochilus setulosus Open
Phytochemical investigation of the methanolic extract obtained from the aerial parts of Lagochilus setulosus (Lamiaceae) afforded the new compound 1-methoxy-3-O-β-glucopyranosyl-α-l-oliose (1) together with five known glycosides, namely si…
View article: Nuclear Magnetic Resonance Metabolomics Approach for the Analysis of Major Legume Sprouts Coupled to Chemometrics
Nuclear Magnetic Resonance Metabolomics Approach for the Analysis of Major Legume Sprouts Coupled to Chemometrics Open
Legume sprouts are a fresh nutritive source of phytochemicals of increasing attention worldwide owing to their many health benefits. Nuclear magnetic resonance (NMR) was utilized for the metabolite fingerprinting of 4 major legume sprouts,…
View article: A single cytochrome P450 oxidase from <i>Solanum habrochaites</i> sequentially oxidizes 7‐<i>epi</i>‐zingiberene to derivatives toxic to whiteflies and various microorganisms
A single cytochrome P450 oxidase from <i>Solanum habrochaites</i> sequentially oxidizes 7‐<i>epi</i>‐zingiberene to derivatives toxic to whiteflies and various microorganisms Open
Summary Secretions from glandular trichomes potentially protect plants against a variety of aggressors. In the tomato clade of the Solanum genus, glandular trichomes of wild species produce a rich source of chemical diversity at the leaf s…
View article: PSYCHE—A Valuable Experiment in Plant NMR-Metabolomics
PSYCHE—A Valuable Experiment in Plant NMR-Metabolomics Open
1H-NMR is a very reproducible spectroscopic method and, therefore, a powerful tool for the metabolomic analysis of biological samples. However, due to the high complexity of natural samples, such as plant extracts, the evaluation of spectr…
View article: NFDI4Chem - Towards a National Research Data Infrastructure for Chemistry in Germany
NFDI4Chem - Towards a National Research Data Infrastructure for Chemistry in Germany Open
The vision of NFDI4Chem is the digitalisation of all key steps in chemical research to support scientists in their efforts to collect, store, process, analyse, disclose and re-use research data. Measures to promote Open Science and Researc…
View article: Two novel 7-<i>epi</i>-zingiberene derivatives with biological activity from<i>Solanum habrochaites</i>are produced by a single cytochrome P450 monooxygenase
Two novel 7-<i>epi</i>-zingiberene derivatives with biological activity from<i>Solanum habrochaites</i>are produced by a single cytochrome P450 monooxygenase Open
Secretions from glandular trichomes potentially protect the plant against a variety of aggressors. In the tomato genus, wild species constitute a rich source of chemical diversity produced at the leaf surface by glandular trichomes. Previo…
View article: Foliar Application of Chitosan Increases Tomato Growth and Influences Mycorrhization and Expression of Endochitinase-Encoding Genes
Foliar Application of Chitosan Increases Tomato Growth and Influences Mycorrhization and Expression of Endochitinase-Encoding Genes Open
Nowadays, applying bio-organic fertilizer (e.g., chitosan, Ch) or integrating beneficial microorganisms (e.g., arbuscular mycorrhizal fungi, AMF) are among the successful strategies to promote plant growth. Here, the effect of two applicat…
View article: A piperic acid CoA ligase produces a putative precursor of piperine, the pungent principle from black pepper fruits
A piperic acid CoA ligase produces a putative precursor of piperine, the pungent principle from black pepper fruits Open
Summary Black pepper ( Piper nigrum L.) is known for its high content of piperine, a cinnamoyl amide derivative regarded as largely responsible for the pungent taste of this widely used spice. Despite its long history and worldwide use, th…
View article: Improved Stability and Tunable Functionalization of Parallel β‐Sheets via Multicomponent N‐Alkylation of the Turn Moiety
Improved Stability and Tunable Functionalization of Parallel β‐Sheets via Multicomponent N‐Alkylation of the Turn Moiety Open
In contrast to the myriad of methods available to produce α‐helices and antiparallel β‐sheets in synthetic peptides, just a few are known for the construction of stable, non‐cyclic parallel β‐sheets. Herein, we report an efficient on‐resin…
View article: Improved Stability and Tunable Functionalization of Parallel β‐Sheets via Multicomponent N‐Alkylation of the Turn Moiety
Improved Stability and Tunable Functionalization of Parallel β‐Sheets via Multicomponent N‐Alkylation of the Turn Moiety Open
In contrast to the myriad of methods available to produce α‐helices and antiparallel β‐sheets in synthetic peptides, just a few are known for the construction of stable, non‐cyclic parallel β‐sheets. Herein, we report an efficient on‐resin…
View article: Coenzyme A‐Conjugated Cinnamic Acids – Enzymatic Synthesis of a CoA‐Ester Library and Application in Biocatalytic Cascades to Vanillin Derivatives
Coenzyme A‐Conjugated Cinnamic Acids – Enzymatic Synthesis of a CoA‐Ester Library and Application in Biocatalytic Cascades to Vanillin Derivatives Open
We present a bioorthogonal method for the ligation of coenzyme A (CoA) with cinnamic acids. The reaction, which is the initial step in the biosynthesis of a multitude of bioactive secondary metabolites, is catalyzed by a promiscuous plant …
View article: Medicago TERPENE SYNTHASE 10 Is Involved in Defense Against an Oomycete Root Pathogen
Medicago TERPENE SYNTHASE 10 Is Involved in Defense Against an Oomycete Root Pathogen Open
In nature, plants interact with numerous beneficial or pathogenic soil-borne microorganisms. Plants have developed various defense strategies to expel pathogenic microbes, some of which function soon after pathogen infection. We used Me…
View article: IR and NMR spectroscopic correlation of enterobactin by DFT
IR and NMR spectroscopic correlation of enterobactin by DFT Open
View article: An OPR3-independent pathway uses 4,5-didehydrojasmonate for jasmonate synthesis
An OPR3-independent pathway uses 4,5-didehydrojasmonate for jasmonate synthesis Open
View article: nmrML: A Community Supported Open Data Standard for the Description, Storage, and Exchange of NMR Data
nmrML: A Community Supported Open Data Standard for the Description, Storage, and Exchange of NMR Data Open
NMR is a widely used analytical technique with a growing number of repositories available. As a result, demands for a vendor-agnostic, open data format for long-term archiving of NMR data have emerged with the aim to ease and encourage sha…
View article: Cytotoxic Effects of Sarcophyton sp. Soft Corals—Is There a Correlation to Their NMR Fingerprints?
Cytotoxic Effects of Sarcophyton sp. Soft Corals—Is There a Correlation to Their NMR Fingerprints? Open
Sarcophyton sp. soft corals are rich in cembranoid diterpenes, which represent the main chemical defense of corals against their natural predators in addition to their myriad biological effects in humans. Quantitative NMR (qNMR) was applie…
View article: Pigment pattern of the Chilean mushroom Dermocybe nahuelbutensis Garrido & E. Horak
Pigment pattern of the Chilean mushroom Dermocybe nahuelbutensis Garrido & E. Horak Open
Fruiting bodies of the Chilean mushroom Dermocybe nahuelbutenis Garrido & E. Horak (syn.: Cortinariusnahuelbutensis (Garrido & E. Horak) E. Valenz. & G. Moreno) were chemically investigated for the first time and afforded the new dimeric a…
View article: Tulasporins A–D, 19-Residue Peptaibols from the Mycoparasitic Fungus <i>Sepedonium tulasneanum</i>
Tulasporins A–D, 19-Residue Peptaibols from the Mycoparasitic Fungus <i>Sepedonium tulasneanum</i> Open
Four new 19-residue peptaibols, named tulasporins A–D (1–4), were isolated from the semi-solid cultures of Sepedonium tulasneanum. Their structures were elucidated on the basis of extensive ESI-HRMS n fragmentation studies as well as 1 H N…
View article: Elucidation of the biosynthesis of carnosic acid and its reconstitution in yeast
Elucidation of the biosynthesis of carnosic acid and its reconstitution in yeast Open
View article: Archivierung und Publikation von Forschungsdaten: Die Rolle von digitalen Repositorien am Beispiel des RADAR-Projekts
Archivierung und Publikation von Forschungsdaten: Die Rolle von digitalen Repositorien am Beispiel des RADAR-Projekts Open
Zusammenfassung Disziplinübergreifendes Forschungsdatenmanagement für Hochschulbibliotheken und Projekte zu vereinfachen und zu etablieren – das ist das Ziel von RADAR. Im Sommer 2016 geht mit ‚RADAR – Research Data Repository‘ ein Service…
View article: The RADAR Project—A Service for Research Data Archival and Publication
The RADAR Project—A Service for Research Data Archival and Publication Open
The aim of the RADAR (Research Data Repository) project is to set up and establish an infrastructure that facilitates research data management: the infrastructure will allow researchers to store, manage, annotate, cite, curate, search and …
View article: CCDC 703694: Experimental Crystal Structure Determination
CCDC 703694: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …