🧬 biology

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

本研究通过响应面法成功优化了来自阿根廷盐古菌(*Haloarcula argentinensis*)S3株的嗜盐α-淀粉酶AmyHa的生产,实现了1.84倍的产量提升,并阐明了其结构与功能适应性,包括高度酸性的表面和保守的催化三联体,这些特性使其能够在极端盐度和酸性条件下实现稳健的淀粉水解。

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

本研究表明,利用剂量感知的基于SNP的基因组亲缘关系矩阵来校正系谱并优化全基因组关联分析(GWAS)模型,能够有效鉴定出四倍体*Urochloa*杂种对唾滴虫抗性和无融合生殖的关键遗传位点,从而加速热带牧草育种计划中的基因组辅助选择。

Rosangela Maria Simeão, Sanzio Carvalho Lima Barrios, Karem Guimarães Xavier Meireles, Fabrícia Zimermann Vilela Torres (…)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

尽管单个真菌分类单元会对宏观气候变化做出响应,但一项针对白栎分布范围的研究表明,局部植物邻里组成而非气候或土壤条件,是构建土壤菌根真菌群落的主要驱动因素。

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

这项纵向研究利用层级主成分分析和 K-means 聚类识别出大学生群体中三种截然不同、稳定且具有可塑性的综合健康相关体适能表型,并证明为期 16 周的力量训练干预显著促进了部分参与者在体适能剖面上的向上转型。

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