Research, Research Articles

Forced association of SARS-CoV-2 proteins with the yeast proteome perturb vesicle trafficking

Cinzia Klemm1,#, Henry Wood1,#, Grace Heredge Thomas1,#, Guðjón Ólafsson1,2, Mara Teixeira Torres1 and Peter H. Thorpe1

This work demonstrates that the yeast Synthetic Physical Interactions method is a rapid way to identify potential functions of ectopic viral proteins.

Airborne bacteria in show caves from Southern Spain

Irene Dominguez-Moñino1, Valme Jurado1, Miguel Angel Rogerio-Candelera1, Bernardo Hermosin1 and Cesareo Saiz-Jimenez1

This study analyzes the factors conditioning the diversity of airborne bacteria recorded in three Andalusian show caves, subjected to different managements.

Landscapes and bacterial signatures of mucosa-associated intestinal microbiota in Chilean and Spanish patients with inflammatory bowel disease

Nayaret Chamorro1,#, David A. Montero1,2,#, Pablo Gallardo3, Mauricio Farfán3, Mauricio Contreras4, Marjorie De la Fuente2, Karen Dubois2, Marcela A. Hermoso2, Rodrigo Quera5,6, Marjorie Pizarro-Guajardo7,8,9, Daniel Paredes-Sabja7,8,9, Daniel Ginard10, Ramon Rosselló-Móra11 and Roberto Vidal1,8,12

This study investigates the landscapes and alterations of mucosa-associated intestinal microbiota in patients with inflammatory bowel diseases, which cause chronic inflammation of the gut, including ulcerative colitis and Crohn’s disease.

Genome, transcriptome and secretome analyses of the antagonistic, yeast-like fungus Aureobasidium pullulans to identify potential biocontrol genes

Maria Paula Rueda-Mejia1, Lukas Nägeli1, Stefanie Lutz2, Richard D. Hayes3, Adithi R. Varadarajan2, Igor V. Grigoriev3,4, Christian H. Ahrens2,5 and Florian M. Freimoser1

This study highlights the value of a sequential approach starting with genome mining and consecutive transcriptome and secretome analyses in order to identify a limited number of potential target genes for detailed, functional analyses in Aureobasidium pullulans.

Barcode sequencing and a high-throughput assay for chronological lifespan uncover ageing-associated genes in fission yeast

Catalina A. Romila1,#, StJohn Townsend1,2,#, Michal Malecki1,3, Stephan Kamrad1,2,4, María Rodríguez-López1, Olivia Hillson1, Cristina Cotobal1, Markus Ralser2,5 and Jürg Bähler1

This work presents two approaches to study chronological lifespan (CLS) for medium- to high-throughput applications, a method for Bar-seq to identify mutants showing altered CLS and a novel medium-throughput colony-forming units assay that can be largely automated by robotics.

Proanthocyanidin-enriched cranberry extract induces resilient bacterial community dynamics in a gnotobiotic mouse model

Catherine C. Neto1,2,#, Benedikt M. Mortzfeld3,#, John R. Turbitt1,2, Shakti K. Bhattarai3, Vladimir Yeliseyev4, Nicholas DiBenedetto4, Lynn Bry4 and Vanni Bucci2,3

This study investigates the effect of a water-soluble, proanthocyanidin-rich cranberry juice extract on the short-term dynamics of a human-derived bacterial community in a gnotobiotic mouse model.

Dry biocleaning of artwork: an innovative methodology for Cultural Heritage recovery?

Giancarlo Ranalli1, Pilar Bosch-Roig2, Simone Crudele1, Laura Rampazzi3,4, Cristina Corti3 and Elisabetta Zanardini5

This work proposes an innovative methodology based on applied biotechnology for the recovery of altered stonework: the "dry biocleaning", which envisages the use of dehydrated microbial cells without the use of free water or gel-based matrices.

Aeration mitigates endoplasmic reticulum stress in Saccharomyces cerevisiae even without mitochondrial respiration

Huong Thi Phuong1, Yuki Ishiwata-Kimata1, Yuki Nishi1, Norie Oguchi1, Hiroshi Takagi1 and Yukio Kimata1

This work demonstrates a scenario, in which aeration acts beneficially on Saccharmyces cerevisiae cells even under fermentative conditions.

A novel BR-SMAD is required for larval development in barber’s pole worm Haemonchus contortus

Fangfang Li1, Peixi Qin1, Lisha Ye1, Nishith Gupta1,2,3 and Min Hu1

The herein presented results show a BMP-like receptor-regulated SMAD in Haemonchus contortus that is required for larval differentiation and underscore an adaptive functional repurposing of BMP-signaling in parasitic worms.

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Multiple metabolic requirements for size homeostasis and initiation of division in Saccharomyces cerevisiae

August 1, 2014

This article reveals an unexpected diversity in the G1 cell cycle phenotypes of metabolic and biosynthetic Saccharomyces cerevisiae mutants, suggesting that growth requirements for cell division are multiple, distinct and imposed throughout the G1 phase of the cell cycle.

Effect of paraquat-induced oxidative stress on gene expression and aging of the filamentous ascomycete Podospora anserina

June 22, 2014

In this article, paraquat is used to experimentally induce strong cellular oxidative stress in Podospora anserina wild-type cultures of different age, finding that this treatment has profound effects on gene expression, growth and lifespan.

Heat shock protein 90 and calcineurin pathway inhibitors enhance the efficacy of triazoles against Scedosporium prolificans via induction of apoptosis

June 2, 2014

This article reports for the first time that posaconazole (PCZ) or itraconazolein (ICZ) in combination with the calcineurin inhibitor tacrolimus or the Hsp90 inhibitor 17-demethoxy-17-(2-propenylamino) geldanamycin renders S. prolificans exquisitely sensitive to PCZ or ICZ via apoptosis.

At neutral pH the chronological lifespan of Hansenula polymorpha increases upon enhancing the carbon source concentrations

May 20, 2014

The data presented in this work indicate that in H. polymorpha at neutral pH the chronological lifespan invariably extends upon increasing the carbon source concentration.

Salt stress causes cell wall damage in yeast cells lacking mitochondrial DNA

March 3, 2014

In this work, the authors report that salt stress causes cell wall damage in yeast cells lacking mitochondrial DNA (ρ0) and that this damage is related to elevated levels of SCW11 and salt stress-induced reactive oxygen species.

Protein oxidation in the intermembrane space of mitochondria is substrate-specific rather than general

March 3, 2014

In this work, the authors suggest that in Saccharomyces cerevisiae, the Mia40-dependent oxidation of proteins in the intermembrane space only takes place in specific proteins and presumably relies on the presence of Mia40-binding sites.

Reduced TORC1 signaling abolishes mitochondrial dysfunctions and shortened chronological lifespan of Isc1p-deficient cells

January 5, 2014

Overall, this article shows that the TORC1-Sch9p axis is deregulated in Isc1p-deficient Saccharomyces cerevisiae cells, contributing to mitochondrial dysfunction, enhanced oxidative stress sensitivity and premature aging of isc1Δ cells.

Tracking autophagy during proliferation and differentiation of Trypanosoma brucei

December 26, 2013

This article provides insights into the function of autophagy, a cellular degradation and recycling pathway, in the protozoan parasite Trypanosoma brucei.

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