🧬 biology

Structural and functional insights into AmyHa: a haloadapted α-amylase from Haloarcula argentinensis S3 optimized via response surface methodology

This study successfully optimized the production of the haloadapted α-amylase AmyHa from *Haloarcula argentinensis* S3 using response surface methodology to achieve a 1.84-fold yield increase and elucidated its structural and functional adaptations, including a highly acidic surface and a conserved catalytic triad, which enable robust starch hydrolysis under extreme salinity and acidic conditions.

Sabah Mediani, Salima Kebbouche-Gana, Siham Akmoussi-Toumi, Afef Najjari, Radhia Nehinah, Saadaoui-Samdhi Nesrine, Souad (…)2026-08-07
🧬 biology

Leveraging a SNP-based genomic relationship matrix to enhance GWAS for spittlebug resistance and mode of reproduction in tetraploid Urochloa hybrids

This study demonstrates that utilizing a dosage-aware SNP-based genomic relationship matrix to correct pedigrees and refine GWAS models effectively identifies key genetic loci for spittlebug resistance and apomixis in tetraploid *Urochloa* hybrids, thereby accelerating genomic-assisted selection in tropical forage breeding programs.

Rosangela Maria Simeão, Sanzio Carvalho Lima Barrios, Karem Guimarães Xavier Meireles, Fabrícia Zimermann Vilela Torres (…)2026-08-07
🧬 biology

The SPFH protein flotillins form endolysosome-ERES contacts that promote unconventional secretion

This study reveals that flotillins facilitate unconventional secretion by establishing contacts between endolysosomes and ER exit sites, thereby promoting the formation of secretory autophagosomes and extracellular vesicles, a mechanism potentially linked to pathological conditions like cancer.

Cecile GAUTHIER-ROUVIERE, LAYAL RAJEH, Sylia CHEHADE, Franck Comunale, Damien PLANCHON, Philippe Fort, Martial Seveno, S (…)2026-08-07
🧬 biology

Shared biotic neighborhood effects override macroclimatic and edaphic conditions in structuring soil mycorrhizal fungal communities across a latitude-scale mycorrhizal type transition under the dual-mycorrhizal host Quercus macrocarpa

Despite individual fungal taxa responding to macroclimatic shifts, a study across the range of bur oak reveals that local plant neighborhood composition, rather than climate or soil conditions, is the primary driver structuring soil mycorrhizal fungal communities.

Peter G. Kennedy, Kathleen Thompson, Talia Michaud, Leah Samuels, Ian S. Pearse, Mira Garner, Alan Whittemore, Andrew L. (…)2026-08-07
🧬 biology

Resistance Training Improves Integrated Health-Related Fitness in University Students: A Phenotype-Based Longitudinal Analysis

This longitudinal study utilized a hierarchical principal component analysis and K-means clustering to identify three distinct, stable, yet modifiable integrated health-related fitness phenotypes among university students, demonstrating that a 16-week resistance training intervention significantly facilitated upward transitions in fitness profiles for a subset of participants.

Sung-Wook Chun, Soo-Min Ha, YuKun Han, JeongHoon Park, Sangho Lee, Na-Young An2026-08-07
🧬 biology

A Quantum Circuit Framework for Protein Ensemble-Level Energetics

This paper introduces a residue-level quantum circuit framework that models protein thermodynamics as heterogeneous ensembles of binary microstates, successfully capturing network-level energetic couplings and ensemble reorganization in miniproteins like Trp-cage and a disulfide-stabilized chimera, thereby advancing quantum protein modeling beyond single-structure optimization.

Bhushan Bonde, Pratik Patil, Bhaskar Choubey2026-08-07
🧬 biology

Rethinking Primate Nasal Temperature Changes in Relation to Valenced Affect

This study on zoo-housed bonobos found that while nasal temperature decreases did not reliably predict overall affective valence or judgment bias, they were associated with optimistic responses to ambiguous stimuli, suggesting that nasal cooling reflects arousal rather than serving as a direct indicator of positive or negative emotional states.

Julia Machado, Bridget Waller, Samantha Ward, Annika Paukner2026-08-07