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Journal articles on the topic 'Pulcherrimin A'

Author: Grafiati

Published: 4 June 2025

Last updated: 15 July 2025

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1

Sipiczki, Matthias. "Metschnikowia pulcherrima and Related Pulcherrimin-Producing Yeasts: Fuzzy Species Boundaries and Complex Antimicrobial Antagonism." Microorganisms 8, no. 7 (2020): 1029. http://dx.doi.org/10.3390/microorganisms8071029.

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Yeasts affiliated with the Metschnikowia pulcherrima clade (subclade) of the large ascomycetous genus Metschnikowia frequently turn out to produce the characteristic maroon-red pulcherrimin when tested for pigment production and prove to exert antagonistic effects on many types of microorganisms. The determination of the exact taxonomic position of the strains is hampered by the shortage of distinctive morphological and physiological properties of the species of the clade and the lack of rDNA barcode gaps. The rDNA repeats of the type strains of the species are not homogenized and are assumed

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Krause, David J., Jacek Kominek, Dana A. Opulente, et al. "Functional and evolutionary characterization of a secondary metabolite gene cluster in budding yeasts." Proceedings of the National Academy of Sciences 115, no. 43 (2018): 11030–35. http://dx.doi.org/10.1073/pnas.1806268115.

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Secondary metabolites are key in how organisms from all domains of life interact with their environment and each other. The iron-binding molecule pulcherrimin was described a century ago, but the genes responsible for its production in budding yeasts have remained uncharacterized. Here, we used phylogenomic footprinting on 90 genomes across the budding yeast subphylum Saccharomycotina to identify the gene cluster associated with pulcherrimin production. Using targeted gene replacements in Kluyveromyces lactis, we characterized the four genes that make up the cluster, which likely encode two pu

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3

Kregiel, Dorota, Maria Nowacka, Anna Rygala, and Renáta Vadkertiová. "Biological Activity of Pulcherrimin from the Meschnikowia pulcherrima Clade." Molecules 27, no. 6 (2022): 1855. http://dx.doi.org/10.3390/molecules27061855.

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Pulcherrimin is a secondary metabolite of yeasts belonging to the Metschnikowia pulcherrima clade, and pulcherrimin formation is responsible for the antimicrobial action of its producers. Understanding the environmental function of this metabolite can provide insight into various microbial interactions and enables the efficient development of new effective bioproducts and methods. In this study, we evaluated the antimicrobial and antiadhesive action of yeast pulcherrimin, as well as its protective properties under selected stressful conditions. Classical microbiological plate methods, microsco

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Kregiel, Dorota, Karolina H. Czarnecka-Chrebelska, Hana Schusterová, Renáta Vadkertiová, and Adriana Nowak. "The Metschnikowia pulcherrima Clade as a Model for Assessing Inhibition of Candida spp. and the Toxicity of Its Metabolite, Pulcherrimin." Molecules 28, no. 13 (2023): 5064. http://dx.doi.org/10.3390/molecules28135064.

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Candidiasis is one of the most frequent infections worldwide. In this study, the antimicrobial properties of six strains belonging to the Metschnikowia pulcherrima clade were evaluated against twenty Candida and Candida-related Filobasidiella neoformans var. bacillispora (syn. Cryptococcus neoformans) of different origins, employing the agar cross method. The toxic effect of pulcherrimin, a red metabolite that is responsible for the antimicrobial activities of Metschnikowia spp., was evaluated in various experimental models. The results of agar tests showed that the selected M. pulcherrima str

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5

Kregiel, Dorota, Agnieszka Krajewska, Agnieszka Kowalska-Baron, Karolina H. Czarnecka-Chrebelska, and Adriana Nowak. "Photoprotective Effects of Yeast Pulcherrimin." Molecules 29, no. 20 (2024): 4873. http://dx.doi.org/10.3390/molecules29204873.

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Sunscreen products can protect the skin against the harmful effects of UV radiation, including reddening, aging, and cancer. The aim of this research was to evaluate the photoprotective effects of yeast pulcherrimin, an iron-chelating dipeptide. We first investigated the cytotoxicity of pulcherrimin produced by Metschnikowia pulcherrima yeast on the human keratinocyte HaCaT cell line, using the PrestoBlue assay. We assessed the ability of pulcherrimin to induce DNA repair after the exposure of HaCaT cells to oxidative stress. We also evaluated its protective activity against UVC radiation. The

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6

Müjdeci, Gamze Nur. "A FUNCTIONAL PROPERTY OF A DOMESTIC APPLE ISOLATE: PULCHERRIMIN PRODUCTION BY METSCHNIKOWIA PULCHERRIMA ELM-GS-3 VIA WASTE VALORIZATION." Gıda 50, no. 2 (2025): 165–77. https://doi.org/10.15237/gida.gd25012.

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Metschnikowia pulcherrima ELM-GS-3 was isolated from damaged Granny Smith apples and identified via MALDI-TOF MS and ITS sequencing (97.89% similarity, NCBI database). Pulcherrimin production was confirmed on FeCl3-supplemented media by maroon-red pigment formation and microscopic analysis. Food waste-derived media, including potato peel, onion skin, watermelon rind extracts, and diluted molasses, were evaluated for biomass and pigment production. Onion skin extract yielded the highest biomass (9.78±0.1 g/L) and pulcherrimin (7.63±0.6 g/L), followed by molasses and watermelon rind. FTIR analys

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7

Wang, Shupei, Zhimei Tan, Chenshu Wang, et al. "Iron Competition as an Important Mechanism of Pulcherrimin-Producing Metschnikowia sp. Strains for Controlling Postharvest Fungal Decays on Citrus Fruit." Foods 12, no. 23 (2023): 4249. http://dx.doi.org/10.3390/foods12234249.

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This study identified and tested fruit-isolated Metschnikowia yeasts against three major postharvest citrus pathogens, namely, Penicillium digitatum, Penicillium italicum, and Geotrichum citri-aurantii, and further evaluated the impact of FeCl3 on the biocontrol efficiency of pulcherrimin-producing M. pulcherrima strains. Based on the characterization of the pigmented halo surrounding the colonies and the analysis of the D1/D2 domain of 26S rDNA, a total of 46 Metschnikowia sp. were screened and identified. All 46 Metschnikowia strains significantly inhibited the hyphal growth of Penicillium d

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8

Osahon, Kennedy Ogbeide, Uankhehi Akhigbe Isaac, Akhadelor Unuigbe Charles, et al. "Isolation, characterisation and in vivo anti-malarial investigation of pulcherrimin A from Caesalpinia pulcherrima stem bark." GSC Biological and Pharmaceutical Sciences 12, no. 2 (2020): 056–63. https://doi.org/10.5281/zenodo.4268012.

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Malaria is responsible for about a million deaths yearly. The fight against malaria is faced with the occurrence of widespread resistance of the malaria parasite, <em>Plasmodium spp</em>. The search for plant derived anti-malarial drugs has become greatly imperative. This study was aimed to isolate and investigate the <em>In vivo </em>anti-malarial activity of pulcherrimin  A isolated from the stem bark of <em>Caesalpinia  pulcherrima</em>. Ethyl acetate fraction of the stem bark extract  was subjected to fractionation over silica gel column to obtain pure co

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Türkel, Sezai, and Beyza Ener. "Isolation and Characterization of New Metschnikowia pulcherrima Strains as Producers of the Antimicrobial Pigment Pulcherrimin." Zeitschrift für Naturforschung C 64, no. 5-6 (2009): 405–10. http://dx.doi.org/10.1515/znc-2009-5-618.

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Metschnikowia pulcherrima is a highly effective biocontrol yeast due to its pigment pulcherrimin that accumulates in the cells and in the growth medium. Three different strains of M. pulcherrima were isolated from local grapes. The yeast isolates were characterized on the basis of their biochemical, physiological and ITS1-5.8 s rDNA-ITS2 region. Based on the obtained results, the M. pulcherrima isolates were identifi ed as new strains of M. pulcherrima. Strong antagonistic activities of the M. pulcherrima strains on the human pathogens Proteus vulgaris, Escherichia coli, Candida albicans, Cand

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Pawlikowska, Ewelina, Beata Kolesińska, Maria Nowacka, and Dorota Kregiel. "A New Approach to Producing High Yields of Pulcherrimin from Metschnikowia Yeasts." Fermentation 6, no. 4 (2020): 114. http://dx.doi.org/10.3390/fermentation6040114.

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Pulcherrimin, a red iron chelate, is produced by some yeasts and bacteria. It plays important ecological roles in many ecosystems, including growth control, biofilm inhibition and photoprotection. In this study, fifteen yeast strains of the genus Metschnikowia were characterized based on their production of pulcherrimin. Yeast pulcherrimin was isolated and its purity assessed using 1H nuclear magnetic resonance spectroscopy. Under experimental conditions, pulcherrimin formation varied depending on both the tested strains and culture media. The best producers formed up to 240 mg/L of pulcherrim

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Fernandez, Nicolas L., and Lyle A. Simmons. "Two distinct regulatory systems control pulcherrimin biosynthesis in Bacillus subtilis." PLOS Genetics 20, no. 5 (2024): e1011283. http://dx.doi.org/10.1371/journal.pgen.1011283.

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Regulation of transcription is a fundamental process that allows bacteria to respond to external stimuli with appropriate timing and magnitude of response. In the soil bacterium Bacillus subtilis, transcriptional regulation is at the core of developmental processes needed for cell survival. Gene expression in cells transitioning from exponential phase to stationary phase is under the control of a group of transcription factors called transition state regulators (TSRs). TSRs influence numerous developmental processes including the decision between biofilm formation and motility, genetic compete

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Yuan, Siqi, Xihao Yong, Ting Zhao, Yuan Li, and Jun Liu. "Research Progress of the Biosynthesis of Natural Bio-Antibacterial Agent Pulcherriminic Acid in Bacillus." Molecules 25, no. 23 (2020): 5611. http://dx.doi.org/10.3390/molecules25235611.

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Pulcherriminic acid is a cyclic dipeptide found mainly in Bacillus and yeast. Due to the ability of pulcherriminic acid to chelate Fe3+ to produce reddish brown pulcherrimin, microorganisms capable of synthesizing pulcherriminic acid compete with other microorganisms for environmental iron ions to achieve bacteriostatic effects. Therefore, studying the biosynthetic pathway and their enzymatic catalysis, gene regulation in the process of synthesis of pulcherriminic acid in Bacillus can facilitate the industrial production, and promote the wide application in food, agriculture and medicine indus

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13

Sipiczki, Matthias. "Taxonomic Revision of the pulcherrima Clade of Metschnikowia (Fungi): Merger of Species." Taxonomy 2, no. 1 (2022): 107–23. http://dx.doi.org/10.3390/taxonomy2010009.

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The type strains of 10 small-spored species of the ascomycetous yeast genus Metschnikowia usually form a compact group on the phylogenetic trees inferred from barcode sequences. Based on the name of the species, which was described first (Metschnikowia pulcherrima), the group is frequently referred to as the pulcherrima clade. All strains produce the iron-chelate pigment pulcherrimin and have antagonistic effects on many microorganisms. Recent results of molecular phylogenetic, genetic, and genomic research raised doubts about the taxonomic division of the clade. Those data—combined with resul

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Němcová, Andrea, Dominika Gonová, Ota Samek, Matthias Sipiczki, Emilia Breierová, and Ivana Márová. "The Use of Raman Spectroscopy to Monitor Metabolic Changes in Stressed Metschnikowia sp. Yeasts." Microorganisms 9, no. 2 (2021): 277. http://dx.doi.org/10.3390/microorganisms9020277.

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Raman spectroscopy is a universal method designed for the analysis of a wide range of physical, chemical and biological systems or various surfaces. This technique is suitable to monitor various components of cells, tissues or microorganisms. The advantages include very fast non-contact and non-destructive analysis and no or minimal need for sample treatment. The yeasts Metschnikowia can be considered as industrially usable producers of pulcherrimin or single-cell lipids, depending on cultivation conditions and external stress. In the present study, Raman spectroscopy was used as an effective

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15

Kántor, Attila, Jana Hutková, Jana Petrová, Lukáš Hleba, and Miroslava Kačániová. "Antimicrobial activity of pulcherrimin pigment produced by Metschnikowia pulcherrima against various yeast species." Journal of Microbiology, Biotechnology and Food Sciences 05, no. 03 (2016): 282–85. http://dx.doi.org/10.15414/jmbfs.2015/16.5.3.282-285.

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Ivanka, Meydiana, Jihan Restiana Faujia, Garit De Nene Nada Bisturi, Nurvyllaeli Agustin, Natasha Octavianti Surya, and Faruk Jayanto Kelutur. "Profil Senyawa dan Aktivitas Farmakologi dari Bunga Kembang Merak (Caesalpinia pulcherrima (L.) Sw.)." PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) 18, no. 1 (2021): 99. http://dx.doi.org/10.30595/pharmacy.v18i1.9316.

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Spesies dari genus Caesalpinia sebagian besar berupa spesies berkayu pada zona tropis dan subtropis. Caesalpinia pulcherrima (L.) Sw. adalah salah satu spesies dari genus Caesalpinia yang biasa dikenal dengan bunga kembang merak. Artikel review ini bertujuan untuk menjelaskan profil senyawa dan aktivitas farmakologi dari C. pulcherrima. Metode pencarian data untuk menyusun artikel review ini adalah penelusuran pustaka dari berbagai sumber jurnal serta buku, meliputi profil tanaman, profil senyawa, serta aktivitas farmakologi dari C. pulcherrima. Metabolit sekunder yang terdapat pada genus Caes

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Ivanka, Meydiana, Jihan Restiana Faujia, Garit De Nene Nada Bisturi, Nurvyllaeli Agustin, Natasha Octavianti Surya, and Faruk Jayanto Kelutur. "Profil Senyawa dan Aktivitas Farmakologi dari Bunga Kembang Merak (Caesalpinia pulcherrima (L.) Sw.)." PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) 18, no. 1 (2021): 99. http://dx.doi.org/10.30595/pharmacy.v18i1.9316.

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Spesies dari genus Caesalpinia sebagian besar berupa spesies berkayu pada zona tropis dan subtropis. Caesalpinia pulcherrima (L.) Sw. adalah salah satu spesies dari genus Caesalpinia yang biasa dikenal dengan bunga kembang merak. Artikel review ini bertujuan untuk menjelaskan profil senyawa dan aktivitas farmakologi dari C. pulcherrima. Metode pencarian data untuk menyusun artikel review ini adalah penelusuran pustaka dari berbagai sumber jurnal serta buku, meliputi profil tanaman, profil senyawa, serta aktivitas farmakologi dari C. pulcherrima. Metabolit sekunder yang terdapat pada genus Caes

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18

Steglińska, Aleksandra, Artur Kołtuniak, Joanna Berłowska, et al. "Metschnikowia pulcherrima as a Biocontrol Agent against Potato (Solanum tuberosum) Pathogens." Agronomy 12, no. 10 (2022): 2546. http://dx.doi.org/10.3390/agronomy12102546.

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An increasing trend in protecting plants against phytopathogens is the replacement of chemical pesticides with environmentally acceptable biopreparations. This article focuses on the possible use of yeast Metschnikowia pulcherrima as a biocontrol agent against potato pathogens. The scope included an assessment of the antimicrobial activity of 10 M. pulcherrima isolates against 10 phytopathogens: Fusarium oxysporum, Fusarium sambucinum, Rhizoctonia solani, Alternaria solani, Alternaria, tenuissima, Alternaria alternata, Colletotrichum coccodes, Phoma exigua, Pectobacterium carotovorum, and Stre

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Morata, Antonio, Iris Loira, Carlos Escott, Juan Manuel del Fresno, María Antonia Bañuelos, and José Antonio Suárez-Lepe. "Applications of Metschnikowia pulcherrima in Wine Biotechnology." Fermentation 5, no. 3 (2019): 63. http://dx.doi.org/10.3390/fermentation5030063.

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Metschnikowia pulcherrima (Mp) is a ubiquitous yeast that frequently appears in spontaneous fermentations. The current interest in Mp is supported by the expression of many extracellular activities, some of which enhance the release of varietal aromatic compounds. The low fermentative power of Mp makes necessary the sequential or mixed use with Saccharomyces cerevisiae (Sc) to completely ferment grape musts. Mp has a respiratory metabolism that can help to lower ethanol content when used under aerobic conditions. Also, Mp shows good compatibility with Sc in producing a low-to-moderate global v

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Kumar, Rajesh, K. Osahon Ogbeide, Mujeeb-Ur-Rehman, et al. "Crystal structure, Hirshfeld surface analysis and electrostatic potential study of naturally occurring cassane-type diterpenoid Pulcherrimin C monohydrate at 100 K." Acta Crystallographica Section E Crystallographic Communications 75, no. 2 (2019): 119–23. http://dx.doi.org/10.1107/s2056989018017498.

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The title cassane-type diterpenoid known as pulcherrimin C, C34H36O8·H2O, systematic name 5,6-bis(benzoyloxy)-4a-hydroxy-4,7,11b-trimethyl-1,2,3,4,4a,5,6,6a,7,11,11a,11b-dodecahydrophenanthro[3,2-b]furan-4-carboxylic acid monohydrate, was isolated as a monohydrate from the medicinally important plant Caesalpinia pulcherrima, found in the tropical regions of south and south-east Asia. The molecule is composed of three trans-fused six-membered rings having chair, chair and half-chair conformations, and a five-membered planar furan ring. In the crystal, O—H...O hydrogen bonds link molecules into

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Osahon Kennedy Ogbeide, Isaac Uankhehi Akhigbe, Charles Akhadelor Unuigbe, et al. "Isolation, characterisation and in vivo anti-malarial investigation of pulcherrimin A from Caesalpinia pulcherrima stem bark." GSC Biological and Pharmaceutical Sciences 12, no. 2 (2020): 056–63. http://dx.doi.org/10.30574/gscbps.2020.12.2.0238.

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Arnaouteli, Sofia, D. A. Matoz-Fernandez, Michael Porter, et al. "Pulcherrimin formation controls growth arrest of theBacillus subtilisbiofilm." Proceedings of the National Academy of Sciences 116, no. 27 (2019): 13553–62. http://dx.doi.org/10.1073/pnas.1903982116.

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Biofilm formation byBacillus subtilisis a communal process that culminates in the formation of architecturally complex multicellular communities. Here we reveal that the transition of the biofilm into a nonexpanding phase constitutes a distinct step in the process of biofilm development. Using genetic analysis we show thatB. subtilisstrains lacking the ability to synthesize pulcherriminic acid form biofilms that sustain the expansion phase, thereby linking pulcherriminic acid to growth arrest. However, production of pulcherriminic acid is not sufficient to block expansion of the biofilm. It ne

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Türkel, Sezai, Mihriban Korukluoğlu, and Mümine Yavuz. "Biocontrol Activity of the Local Strain ofMetschnikowia pulcherrimaon Different Postharvest Pathogens." Biotechnology Research International 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/397167.

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The strains of the yeastMetschnikowia pulcherrimahave strong biocontrol activity against various microorganisms. Biocontrol activity ofM. pulcherrimalargely depends on its iron immobilizing pigment pulcherrimin. Biocontrol activity of pulcherrimin producing strain,M. pulcherrimaUMY15, isolated from local vineyards, was tested on different molds that cause food spoilage.M. pulcherrimaUMY15 was a very effective biocontrol agent againstPenicillium roqueforti,P. italicum,P. expansum, andAspergillus oryzaein in-vitro plate tests. However, the inhibitory activity ofM. pulcherrimaUMY15 was less effec

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Mažeika K, Pakštas V, Melvydas V, and Jagminas A. "Amino acid-assisted synthesis and characterization of zero-Valente iron nanoparticles for research on the bio-interactions with yeast." GSC Advanced Engineering and Technology 4, no. 1 (2022): 001–11. http://dx.doi.org/10.30574/gscaet.2022.4.1.0043.

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The wet synthesis of uniformly sized zero-Valente iron nanoparticles (NPs) for application in nanomedicine and biology is still a challenging because of magnetic interaction, oxidation and corrosion. In this study, various Fe-containing NPs were synthesized using amino acids as their size stabilizing agents to investigate their bio-interactions with Metschnikowia spp. yeast strains. For this, D-glutamic, DL-cysteine, DL-methionine, and taurine amino acids were tested. In this way, NPs in size from several to 40 nm, composed of a-Fe0, a-FeB, Fe2O3 and lepidocrocite, g-FeOOH, were synthesized an

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Tuyakova, A. K., M. S. Urazova, A. M. Satenova, and S. M. Shaikhin. "The prospect of using strains of Metschnikowia pulcherrima to combat pathogens of post-harvest spoilage of fruits." BULLETIN of the L.N. Gumilyov Eurasian National University. BIOSCIENCE Series 140, no. 3 (2022): 76–82. http://dx.doi.org/10.32523/2616-7034-2022-140-3-76-82.

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Pre-treatment of fruits with biological products before placing them for long-term storage leads to a decrease in epiphytic microflora. The scientific article presents the results of studying the biological properties of antagonist strains that suppress the growth of phytopathogenic microorganisms. The article investigates microbial contamination of the surface of fresh fruits grown in private orchards in the Almaty region. The purpose of the article is to study the fungicidal and antagonistic activities of the isolated yeast strains in relation to molds, which are the cause of the post-harves

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McClennen, Gillian, Leticia Lima Angelini, and Yunrong Chai. "Abstract 1383: Novel Transcription Factor Linking Pulcherrimin to Cell Death." Journal of Biological Chemistry 299, no. 3 (2023): S169. http://dx.doi.org/10.1016/j.jbc.2023.103365.

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Randazzo, Paola, Anne Aubert-Frambourg, Alain Guillot, and Sandrine Auger. "The MarR-like protein PchR (YvmB) regulates expression of genes involved in pulcherriminic acid biosynthesis and in the initiation of sporulation in Bacillus subtilis." BMC Microbiology 16, no. 1 (2016): 190. https://doi.org/10.1186/s12866-016-0807-3.

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<strong>Background: </strong>Cyclodipeptides and their derivatives constitute a large class of peptide natural products with noteworthy biological activities. In some yeasts and bacterial species, pulcherriminic acid derived from cyclo-L-leucyl-L-leucyl is excreted and chelates free ferric ions to form the pulcherrimin. In <i>Bacillus subtilis</i>, the enzymes YvmC and CypX are known to be involved in pulcherriminic acid biosynthesis. However, the mechanisms controlling the transcription of the <i>yvmC</i>-<i>cypX</i> operon are still unknown.<strong>Results: </strong>In this work, we demonstr

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Li, Xiaoyun, Dong Wang, Dongbo Cai, Yangyang Zhan, Qin Wang, and Shouwen Chen. "Identification and High-level Production of Pulcherrimin in Bacillus licheniformis DW2." Applied Biochemistry and Biotechnology 183, no. 4 (2017): 1323–35. http://dx.doi.org/10.1007/s12010-017-2500-x.

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Mažeika, Kęstutis, Laurynas Šiliauskas, Gražina Skridlaitė, et al. "Features of iron accumulation at high concentration in pulcherrimin-producing Metschnikowia yeast biomass." JBIC Journal of Biological Inorganic Chemistry 26, no. 2-3 (2021): 299–311. http://dx.doi.org/10.1007/s00775-021-01853-z.

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Amoah, Yaa Serwaah, Satish Kumar Rajasekharan, Ram Reifen, and Moshe Shemesh. "Chickpea-Derived Prebiotic Substances Trigger Biofilm Formation by Bacillus subtilis." Nutrients 13, no. 12 (2021): 4228. http://dx.doi.org/10.3390/nu13124228.

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Chickpea-based foods are known for their low allergenicity and rich nutritional package. As an essential dietary legume, chickpea is often processed into milk or hummus or as an industrial source of protein and starch. The current study explores the feasibility of using the chickpea-derived prebiotic substances as a scaffold for growing Bacillus subtilis (a prospective probiotic bacterium) to develop synbiotic chickpea-based functional food. We report that the chickpea-derived fibers enhance the formation of the B. subtilis biofilms and the production of the antimicrobial pigment pulcherrimin.

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Iorizzo, Massimo, Francesca Coppola, Gianfranco Pannella, et al. "First Report on Antifungal Activity of Metschnikowia pulcherrima Against Ascosphaera apis, the Causative Agent of Chalkbrood Disease in Honeybee (Apis mellifera L.) Colonies." Journal of Fungi 11, no. 5 (2025): 336. https://doi.org/10.3390/jof11050336.

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Chalkbrood is the manifestation of the fungal disease caused by Ascosphaera apis, which affects broods of developing honeybees, particularly in Apis mellifera colonies. Recently, Metschnikowia pulcherrima has been proposed as a biocontrol agent in winemaking and for the management of major postharvest and soil-borne plant pathogenic fungi. In this study, the antagonistic activity of three M. pulcherrima strains against fifteen A. apis strains, isolated from contaminated hives of A. mellifera, was evaluated, with a specific focus on the potential antifungal activity of volatile organic compound

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Guo, Dong-Xiao, Yu Du, Yan-Yan Wang, et al. "Secondary Metabolites from the Liverwort Ptilidium pulcherrimum." Natural Product Communications 4, no. 10 (2009): 1934578X0900401. http://dx.doi.org/10.1177/1934578x0900401001.

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A new trinortriterpenoid, diospyrolide acetate (1) and a new diphenylmethane derivative, pulcherrimumin (12), together with ten known pentacyclic triterpenoids (2–11) and four aromatic compounds (13–16), were isolated from the liverwort Ptilidium pulcherrimum. Their structures were established on the basis of extensive analysis of NMR data and by chemical methods. The cytotoxicity of compounds 1–16 was evaluated against the PC3, MDA-MB-231, and Hela cells lines. Ursane triterpenoids 8–10 exhibited moderate cytotoxicity against PC3 cells with IC50 values ranging from 10.1 to 39.7 μM.

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Humphrey, Kristen M., Lisha Zhu, Meleah A. Hickman, et al. "Evolution of Distinct Responses to Low NAD+ Stress by Rewiring the Sir2 Deacetylase Network in Yeasts." Genetics 214, no. 4 (2020): 855–68. http://dx.doi.org/10.1534/genetics.120.303087.

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Evolutionary adaptation increases the fitness of a species in its environment. It can occur through rewiring of gene regulatory networks, such that an organism responds appropriately to environmental changes. We investigated whether sirtuin deacetylases, which repress transcription and require NAD+ for activity, serve as transcriptional rewiring points that facilitate the evolution of potentially adaptive traits. If so, bringing genes under the control of sirtuins could enable organisms to mount appropriate responses to stresses that decrease NAD+ levels. To explore how the genomic targets of

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Gore‐Lloyd, Deborah, Inés Sumann, Alexander O. Brachmann, et al. "Snf2 controls pulcherriminic acid biosynthesis and antifungal activity of the biocontrol yeastMetschnikowia pulcherrima." Molecular Microbiology 112, no. 1 (2019): 317–32. http://dx.doi.org/10.1111/mmi.14272.

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MORENO, GABRIEL, M. NATIVIDAD BLANCO, GONZALO PLATAS, JULIA CHECA, and IBAI OLARIAGA. "Reappraisal of Climacodon (Basidiomycota, Meruliaceae) and reinstatement of Donkia (Phanerochaetaceae) using multigene data." Phytotaxa 291, no. 3 (2017): 171. http://dx.doi.org/10.11646/phytotaxa.291.3.1.

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Climacodon comprises species characterized by a hydnoid hymenophore, a monomitic hyphal system and spores without iodine reactions. Climacodon pulcherrimus is unique within Climacodon due to having multiple clamp connections. Current taxonomy of Climacodon relies exclusively on treatments based on morphological observations. In this study, we constructed a 6-locus DNA phylogeny (LSU, 5.8S, SSU, RPB2, ef-1α, RPB1) to evaluate the monophily of Climacodon. Our results show that Climacodon is polyphyletic as currently circumscribed. Climacodon sanguineus forms a well-supported clade with C. septen

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Ogbeide, K. Osahon, Mujeeb-Ur-Rehman, J. Bodunde Owolabi, Abiodun Falodun, M. Iqbal Choudhary, and Sammer Yousuf. "Crystal structure and Hirshfeld surface analysis of pulcherrin J." Acta Crystallographica Section E Crystallographic Communications 73, no. 10 (2017): 1572–75. http://dx.doi.org/10.1107/s2056989017011239.

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The title compound, C29H36O4[systematic name (4aR,5R,6aS,7R,11aS,11bR)-4a-hydroxy-4,4,7,11b-tetramethyl-1,2,3,4,4a,5,6,6a,7,11,11a,11b-dodecahydrophenanthro[3,2-b]furan-5-yl cinnamate], a natural diterpene known as pulcherrin J, was isolated from stem barks of medicinally importantCaesalpinia pulcherrima(L.). The crystal structure of pulcherrin J shows it to be composed of a central core of threetrans-fused cyclohexane rings and a near planar five-membered furan ring, along with an axially oriented cinnamate moiety and an hydroxy substituent attached at positions 4a and 5 of the steroid ring s

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Murata, Yuko, Noriko U. Sata, Masahito Yokoyama, Ryuji Kuwahara, Masaki Kaneniwa, and Ichiro Oohara. "Determination of a novel bitter amino acid, pulcherrimine, in the gonad of the green sea urchin Hemicentrotus pulcherrimus." Fisheries Science 67, no. 2 (2001): 341–45. http://dx.doi.org/10.1046/j.1444-2906.2001.00234.x.

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Patil, Ashok D., Alan J. Freyer, R. Lee Webb, et al. "Pulcherrimins A – D, novel diterpene dibenzoates from Caesalpinia pulcherrima with selective activity against DNA repair-deficient yeast mutants." Tetrahedron 53, no. 5 (1997): 1583–92. http://dx.doi.org/10.1016/s0040-4020(96)01135-0.

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MURATA, YUKO, MASAHITO YOKOYAMA, TATSUYA UNUMA, NORIKO U. SATA, RYUJI KUWAHARA, and MASAKI KANENIWA. "Seasonal changes of bitterness and pulcherrimine content in gonads of green sea urchin Hemicentrotus pulcherrimus at Iwaki in Fukushima Prefecture." Fisheries Science 68, no. 1 (2002): 184–89. http://dx.doi.org/10.1046/j.1444-2906.2002.00406.x.

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PATIL, A. D., A. J. FREYER, R. L. WEBB, et al. "ChemInform Abstract: Pulcherrimins A-D, Novel Diterpene Dibenzoates from Caesalpinia pulcherrima with Selective Activity Against DNA Repair-Deficient Yeast Mutants." ChemInform 28, no. 20 (2010): no. http://dx.doi.org/10.1002/chin.199720158.

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Pearse Hutchinson and Jorge R. G. Sagastume. "Pulcherrima Paradigmata." Sirena: poesia, arte y critica 2010, no. 1 (2010): 29. http://dx.doi.org/10.1353/sir.0.0320.

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Korneck, Dieter, and Hildemar Scholz. "Stipa pulcherrima subsp. palatina, eine neue Federgras-Sippe aus der Pfalz." Kochia 2 (December 19, 2007): 1–7. http://dx.doi.org/10.21248/kochia.v2.17.

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Von Leistadt in der Pfalz, dort an Kalkfelsklippen im Xerobrometum erecti, wird Stipa pulcherrima subsp. palatina H. Scholz & Korneck, subsp. nova, beschrieben. S. pulcherrima subsp. palatina unterscheidet sich von subsp. pulcherrima durch kürzere Deckspelzen (19–22 mm) mit abweichender Behaarung, da die Haarreihe auf dem Mittelnerv kürzer ist als die benachbarten. Die Pflanzen sind von weniger kräftigem Wuchs als bei subsp. pulcherrima. Wir betrachten S. pulcherrima subsp. palatina als einen Lokalendemiten der deutschen Flora.

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Sizzano, Federico, Marie Blackford, Hélène Berthoud, et al. "Bioprospecting of a Metschnikowia pulcherrima Indigenous Strain for Chasselas Winemaking in 2022 Vintage." Foods 12, no. 24 (2023): 4485. http://dx.doi.org/10.3390/foods12244485.

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Interest in Metschnikowia (M.) pulcherrima is growing in the world of winemaking. M. pulcherrima is used both to protect musts from microbial spoilage and to modulate the aromatic profile of wines. Here, we describe the isolation, characterization, and use of an autochthonous strain of M. pulcherrima in the vinification of Chasselas musts from the 2022 vintage. M. pulcherrima was used in co-fermentation with Saccharomyces cerevisiae at both laboratory and experimental cellar scales. Our results showed that M. pulcherrima does not ferment sugars but has high metabolic activity, as detected by f

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Hicks, Robert H., Mauro Moreno-Beltrán, Deborah Gore-Lloyd, Christopher J. Chuck, and Daniel A. Henk. "The Oleaginous Yeast Metschnikowia pulcherrima Displays Killer Activity against Avian-Derived Pathogenic Bacteria." Biology 10, no. 12 (2021): 1227. http://dx.doi.org/10.3390/biology10121227.

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Metschnikowia pulcherrima is a non-conventional yeast with potential to be used in biotechnological processes, especially those involving low-cost feedstock exploitation and biocontrol applications. The combination of traits that supports these industrial applications in M. pulcherrima also makes it an attractive option to study in the context of livestock health. In this study, we examined the specific interactions between M. pulcherrima and multiple avian pathogenic bacteria. We tested individual bacteria–yeast interactions and bacterial combinations in both solid and liquid media and in var

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Frieders, Elizabeth M., and David J. McLaughlln. "Mitosis in the yeast phase of Agaricostilbum pulcherrimum and its evolutionary significance." Canadian Journal of Botany 74, no. 9 (1996): 1392–406. http://dx.doi.org/10.1139/b96-169.

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Agaricostilbum pulcherrimum is an anomaly and is difficult to place systematically. It possesses a yeast phase, and as in most basidiomycetous yeasts, mitosis has not been investigated cytoiogically. Yeast cells of A. pulcherrimum were prepared for immunofluorescence and transmission electron microscopy by a freeze-substitution method. A cladistic analysis of cell cycle characters among A. pulcherrimum and two ascomycetous and two basidiomycetous yeasts, performed with phylogenetic analysis using parsimony, revealed that A. pulcherrimum is basal within these basidiomycetes. Spindle pole bodies

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HS, Bhandari, and Wagh RD. "Development and assessment of Carboxymethylated Galactomannan from Seeds of Caesalpinia pulcherrima as an Efficient Disintegrating Agent for Orally Disintegrating Tablet." INTERNATIONAL JOURNAL OF DRUG DELIVERY TECHNOLOGY 14, no. 04 (2024): 1217–24. https://doi.org/10.25258/ijddt.14.4.39.

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Current study's objective was to evaluate the disintegration potential of naturally occurring Caesalpinia pulcherrima seedgalactomannan and to chemically modify it for formulation of orally disintegrating tablet formulation. Galactomannan extracted from the Caesalpinia pulcherrima seeds received chemical modification through carboxymethylation in an effort to enhance its hydrophilic nature of galactomannan which enhances disintegration potency. Carboxymethylated Caesalpinia pulcherrima seed galactomannan synthesized by etherification process by using monochloroacetic acid the titrimetric metho

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Zolotukhin, N. I. "Comparative data on the habitats of Stipa pulcherrima C. Koch (Poaceae Barnchart) in Altai and in the Central Chernozem Region." Проблемы ботаники Южной Сибири и Монголии 19, no. 1 (2020): 119–23. http://dx.doi.org/10.14258/pbssm.2020024.

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Based on the analysis of 91 geobotanical descriptions with Stipa pulcherrima C. Koch from three reservesof Russia (Tigireksky, Belogorye, Central Chernozem), the species is confined to certain habitats. The number ofStipa pulcherrima individuals in the areas of the reserves is reported. Species of vascular plants that are often found incommunities with Stipa pulcherrima are given.

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Chase, A. R. "Corynespora Bract Spot ofEuphorbia pulcherrimain Florida." Plant Disease 70, no. 11 (1986): 1074d. http://dx.doi.org/10.1094/pd-70-1074d.

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Belin, Christian. "« Ordo saeculorum … carmen pulcherrimum … »." Courrier Blaise Pascal, no. 41-42 (December 16, 2020): 41–57. http://dx.doi.org/10.4000/cbp.376.

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Lowe, Willoughby P. "Specimens of Psephotus pulcherrimus." Ibis 89, no. 4 (2008): 663. http://dx.doi.org/10.1111/j.1474-919x.1947.tb03905.x.

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