Results 41 to 50 of about 2,129 (183)

Zur Biosynthese der Peptidalkaloide von Claviceps purpurea / Biosynthesis of Peptide Alkaloids of Claviceps purpurea

open access: yesZeitschrift für Naturforschung B, 1970
Using a strain of Claviceps purpurea which produces under submerged conditions chanoclavine, ergometrine and mainly ergotoxine the biosynthesis of ergoline derivatives has been studied. DL-Tryptophan- (ring-2-14C) is specifically incorporated into the lysergic acid moiety of ergotoxine· alkaloids.
D. Gröger, D. Erge
openaire   +1 more source

Ergot Alkaloids Mycotoxins in Cereals and Cereal-Derived Food Products: Characteristics, Toxicity, Prevalence, and Control Strategies

open access: yesAgronomy, 2021
Ergot alkaloids (EAs) are a group of mycotoxins that are mainly produced from the plant pathogen Claviceps. Claviceps purpurea is one of the most important species, being a major producer of EAs that infect more than 400 species of monocotyledonous ...
Sofia Agriopoulou
doaj   +1 more source

Validation of a New Sensitive Method for the Detection and Quantification of R and S-Epimers of Ergot Alkaloids in Canadian Spring Wheat Utilizing Deuterated Lysergic Acid Diethylamide as an Internal Standard

open access: yesToxins, 2021
Ergot sclerotia effect cereal crops intended for consumption. Ergot alkaloids within ergot sclerotia are assessed to ensure contamination is below safety standards established for human and animal health.
Jensen Cherewyk   +3 more
doaj   +1 more source

Intoxicações por plantas e micotoxinas associadas a plantas em bovinos no Rio Grande do Sul: 461 casos Plant and plant-associated mycotoxins poisoning in cattle in Rio Grande do Sul, Brazil: 461 cases

open access: yesPesquisa Veterinária Brasileira, 2007
Foi realizado um levantamento nos arquivos do Laboratório de Patologia Veterinária (LPV) da Universidade Federal de Santa Maria (UFSM) e revisados os laudos de necropsias de bovinos realizadas entre 1990 e 2005.
Daniel R. Rissi   +7 more
doaj   +1 more source

Benzochromanone and Benzochromene Natural Products: Synthetic Strategies and Total Syntheses

open access: yesThe Chemical Record, EarlyView.
This work outlines synthetic strategies for natural products with benzochromanone and benzochromene cores. Key achievements include total syntheses of xanthones, blennolide C, gonytolide C, and teretifolione B. Spirochromanone intermediates, benzyne–furan Diels–Alder reactions, and enzymatic resolution enabled efficient and enantioselective access to ...
Takuya Kumamoto
wiley   +1 more source

Effect of Field-applied Fungicides on Claviceps purpurea Sclerotia and Associated Toxins in Wheat

open access: yesJournal of Food Protection, 2023
Claviceps purpurea (Fr.) Tul is the causal organism for ergot impacting grass hosts, including wheat. The pathogen produces ergot alkaloids (EAs) during the development of mature sclerotia leading to potential wheat quality discounts or rejection at the ...
Shatha Alaoufi   +2 more
doaj   +1 more source

Ergot development on low-pentosan diploid winter rye

open access: yesЗерновое хозяйство России, 2021
Ergot (Claviceps purpurea (Fr) Tul.) is a widespread rye disease. A strong development of the disease can reduce up to 60% of grain productivity and its quality. In the rye gene pool, there was found no samples with complete resis[1]tance to Cl. purpurea.
V. D. Kobylyansky, О. V. Solodukhina
doaj   +1 more source

DNA Aptamers Targeting BcSOD1: A Novel Strategy for Controlling Botrytis cinerea in Sustainable Agriculture

open access: yesPlant Biotechnology Journal, Volume 23, Issue 12, Page 5778-5796, December 2025.
ABSTRACT Botrytis cinerea, the necrotrophic fungus responsible for grey mould disease, is a major threat to global crop production. Control strategies mainly rely on chemical fungicides, but resistance development limits their long‐term effectiveness. This study introduces, for the first time in crop protection, the use of DNA aptamers as a novel and ...
Alba López‐Laguna   +9 more
wiley   +1 more source

MoMtg1 Acts as a Novel Transcriptional Repressor of MoSwi6 During Appressorium‐Mediated Penetration in the Rice Blast Fungus

open access: yesAdvanced Science, Volume 12, Issue 43, November 20, 2025.
Appressoria are specialized penetration structures for many plant pathogenic fungi, demanding precise cell cycle control. This study unveils MoMtg1 as a transcriptional repressor of MoSwi6, orchestrating MoCYC1 expression during turgor‐driven cell cycle progression to enable appressorium‐mediated penetration. Moreover, a small‐molecule inhibitor ZS1619
Xingyu Wang   +11 more
wiley   +1 more source

Covariation of Ergot Severity and Alkaloid Content Measured by HPLC and One ELISA Method in Inoculated Winter Rye across Three Isolates and Three European Countries

open access: yesToxins, 2020
Ergot caused by Claviceps purpurea is a problem for food and feed security in rye due to the occurrence of toxic ergot alkaloids (EAs). For grain elevators and breeders, a quick, easy-to-handle, and cheap screening assay would have a high economic impact.
Anna Kodisch   +16 more
doaj   +1 more source

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