A new plasmodiocarpic and sporocarpic species of myxomycete in the genus Physarum is described and illustrated. This new species appeared on decayed leaves and remains of succulent plants (Agave, Opuntia, Yucca) growing in arid zones. It differs from all other species in the genus in having polyhedral spores linked in chains like a string of beads, a unique feature within all known myxomycetes. Apart from detailed morphological data, partial sequences of both the small-subunit ribosomal RNA and elongation factor 1-alpha genes, generated from four isolates collected in two distant regions, i.e., Mexico and Canary Islands, are also provided in this study. Combined evidence supports the identity of the specimens under study as a new species.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ejop.2017.12.004 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Reconstructing the environmental impact of mining on mountain lakes.
Sci Total Environ
January 2025
Instituto Geológico y Minero de España (CSIC), Ríos Rosas 23, ES-28003 Madrid, Spain. Electronic address:
Mountain lakes are particularly fragile ecosystems undergoing important ecological and depositional transformations associated with ongoing global change. However, the history of anthropogenic impacts on mountain lakes and their catchments is much longer, in many cases featuring millennia of summer pastoral farming. More recently, the growing demand for raw materials and energy linked to industrialization, particularly accelerated since the 19th century CE, meant a further increase in human impact on mountain areas.
View Article and Find Full Text PDFTraining in modern statistical methodologies and software tools for the definition and analysis of (stochastic) quantitative microbial risk assessment models with relevant food products for the Italian and Spanish food supply chains.
EFSA J
December 2024
Departemento de Ingenierìa Agronòmica ETSIA- Universidad politècnica de Cartagena Murcia Spain.
The fellowship, entitled 'Training in modern statistical methodologies and software tools for the definition and analysis of (stochastic) quantitative microbial risk assessment models with relevant food products for the Italian and Spanish food supply chains', was implemented at the Universidad Politécnica de Cartagena (UPCT), Spain. Supervised by Dr. Alberto Garre and Prof.
View Article and Find Full Text PDFIs Bacillus cytotoxicus from edible insects a threat?
Int J Food Microbiol
February 2025
Department of Comparative Biomedicine and Food Science, University of Padua, Viale Università 16, 35020 Legnaro, Pd, Italy.
Bacillus cytotoxicus is considered a potential emerging foodborne pathogen that has been under investigation in recent years. Most studies have focused on strains from vegetables, particularly potato products, but there is limited information on strains from other food sources. This study addresses the current research gap by investigating the genomic and phenotypic features of B.
View Article and Find Full Text PDFThe conserved noncoding RNA ModT coordinates growth and virulence in Clostridioides difficile.
PLoS Biol
December 2024
University of Würzburg, Faculty of Medicine, Institute of Molecular Infection Biology, Würzburg, Germany.
Bacterial noncoding RNAs fulfill a variety of cellular functions as catalysts, as scaffolds in protein complexes or as regulators of gene expression. They often exhibit complex tertiary structures that are a key determinant of their biochemical function. Here, we characterize the structured "raiA motif" RNA from Clostridioides difficile, which is conserved in more than 2,500 bacterial species from the phyla Bacillota and Actinomycetota.
View Article and Find Full Text PDFRegulation of citrinin biosynthesis in Monascus purpureus: Impacts on growth, morphology, and pigments production.
Food Microbiol
April 2025
Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, 100048, PR China. Electronic address:
Article Synopsis
- - The study examined how the ctnA gene affects the growth and characteristics of M. purpureus by creating strains that either knocked out or overexpressed the gene, focusing on citrinin production.
- - Findings showed that deleting ctnA led to longer mycelium and less citrinin (22% of the wild-type), while overexpressing it resulted in slower growth and more citrinin (120% of the wild-type).
- - The research highlights a link between citrinin production and the physical structure of the fungus, suggesting methods to enhance metabolite production for industrial use.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!