Results 81 to 90 of about 732,445 (126)

First Report of a Neotropical Agaric (Lepiota spiculata, Agaricales, Basidiomycota) Containing Lethal α-Amanitin at Toxicologically Relevant Levels

open access: yesFrontiers in Microbiology, 2020
A recent collection of Lepiota spiculata from the Dominican Republic is presented here. Macro- and micromorphological features of L. spiculata are described in detail, and its evolutionary (phylogenetic) position within Lepiota sect.
Claudio Angelini   +5 more
doaj   +1 more source

Revisiting steroidal glycoalkaloids as hatching stimulants for Globodera rostochiensis and Globodera pallida

open access: yesPest Management Science, Volume 81, Issue 8, Page 4848-4862, August 2025.
Structural differences in steroidal glycoalkaloids (SGAs) differentially stimulate hatching in Globodera rostochiensis and Globodera pallida, triggering distinct gene expression responses. These findings offer insights into species‐specific hatching mechanisms, advancing the development of more targeted strategies for managing potato cyst nematode ...
Andrea Caroline Ruthes   +2 more
wiley   +1 more source

Lost in Translation: Physiological Roles of Stored mRNAs in Seed Germination

open access: yesPlants, 2020
Seeds characteristics such as germination ability, dormancy, and storability/longevity are important traits in agriculture, and various genes have been identified that are involved in its regulation at the transcriptional and post-transcriptional level ...
Naoto Sano   +2 more
doaj   +1 more source

Current practice, challenges and future opportunities in the safety assessment of newly expressed proteins in genetically modified plants

open access: yesEFSA Journal, Volume 23, Issue 8, August 2025.
Abstract Current risk assessment strategies for protein safety of newly expressed proteins (NEPs) in genetically modified (GM) plants are based on chemical risk assessment principles and Codex Alimentarius guidelines for biotech‐derived foods, initially published in 2003. These guidelines were designed for proteins with multiple testing options and for
EFSA Panel on Genetically Modified Organisms (GMO)   +32 more
wiley   +1 more source

Peptide Macrocyclization Catalyzed by a Prolyl Oligopeptidase Involved in α-Amanitin Biosynthesis [PDF]

open access: yes, 2014
SummaryAmatoxins are ribosomally encoded and posttranslationally modified peptides that account for the majority of fatal mushroom poisonings of humans.
Sung-Yong Hong   +11 more
core   +1 more source

Untargeted Metabolomic Analysis Using UPLC–MS/MS Reveals Metabolic Changes Associated With Lanmaoa asiatica Poisoning

open access: yesFood Science &Nutrition, Volume 13, Issue 7, July 2025.
Lanmaoa asiatica possesses notable nutritional and pharmacological value, yet its potential to cause neuropsychiatric symptoms remains unclear. This study represents the first application of UPLC‐MS/MS non‐targeted metabolomics technology to systematically analyze the plasma metabolic profiles of patients with Lanmaoa asiatica poisoning, particularly ...
Ruanxian Dai   +6 more
wiley   +1 more source

Quantification of alpha-amanitin in biological samples by HPLC using simultaneous UV- diode array and electrochemical detection [PDF]

open access: yes, 2015
α-Amanitin is a natural bicyclic octapeptide, from the family of amatoxins, present in the deadly mushroom species Amanita phalloides. The toxicological and clinical interests raised by this toxin, require highly sensitive, accurate and reproducible ...
Costa, Vera M.   +4 more
core   +1 more source

Amatoxins (α- and β-Amanitin) and phallotoxin (Phalloidin) analyses in urines using high-resolution accurate mass LC-MS technology [PDF]

open access: yes, 2014
International audienceMycotoxin intoxications can result from the consumption of amatoxins like α- and β-amanitin or of phallotoxin, present in several toxic mushrooms like Amanita phalloides.
Gicquel, Thomas   +5 more
core   +1 more source

Strongly enhanced toxicity of the mushroom toxin alpha-amanitin by an amatoxin-specific Fab or monoclonal antibody [PDF]

open access: yes, 1988
H. Faulstich, K. Kirchiner and M. Derenzini. Strongly enhanced toxicity of the mushroom toxin α-amanitin by an amatoxin-specific Fab or monoclonal antibody. Toxicon26, 491–499, 1988.
Faulstich, H.   +2 more
core   +1 more source

Rapid analysis of amatoxins in human urine by means of affinity column chromatography and liquid chromatography-high-resolution tandem mass spectrometry

open access: yesScientific Reports
Analysis of amatoxins is of great importance as these cyclic peptides contribute to a high number of fatalities each year. Development of analytical approaches needs to focus on rapid, sensitive, and reliable methods.
Aline C. Vollmer   +5 more
doaj   +1 more source

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