Scholarlink

<p>Mucoromycotina fine root endophytes (M-FRE), although commonly present in cultivated crops, represent a largely overlooked symbiosis, and their diversity and ecological functions under field conditions remain poorly understood. The co-occurrence of M-FRE and Glomeromycotina arbuscular mycorrhizal fungi (G-AMF) was assessed in field-grown durum wheat (<i>Triticum turgidum</i> subsp. <i>durum</i>), testing the effects of combined water and nitrogen stress on root colonization and fungal community diversity in roots, rhizosphere, and extra-radical hyphae. The M-FRE colonization was reduced under combined stress but was unaffected by wheat genotype. In contrast, G-AMF colonization varied among genotypes and was insensitive to this combined stress. While G-AMF colonization correlated with root traits, M-FRE abundance was rather determined by soil properties and the applied stress. Colonization by M-FRE but not by G-AMF correlated with nitrogen and phosphorus uptake in plant shoots. Partial 18&#xa0;S metabarcoding detected 74 G-AMF taxa and 12&#xa0;M-FRE taxa, some shared across compartments, revealing active growth of M-FRE extra-radical hyphae. Stress had contrasting effects on diversity: G-AMF alpha diversity remained stable, whereas M-FRE diversity declined, with stress driving distinct community structures for both groups. Collectively, our results suggest that M-FRE and G-AMF are structured by distinct ecological drivers, supporting functional differentiation between these morphologically similar symbioses.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Contrasting biotic and abiotic drivers of Glomeromycotina and Mucoromycotina mycorrhizal associations in field-grown durum wheat

  • 期刊论文

  • 发表日期：

    2026年7月4日

查看全文
  • Elisa Taschen,
  • Esther Guillot,
  • Claude Plassard,
  • Erwan Kerbiriou,
  • Damien Dezette,
  • Adrien Taudière,
  • Aline Personne,
  • Agnès Robin,
  • Dirk Redecker,
  • Philippe Hinsinger

摘要

Mucoromycotina fine root endophytes (M-FRE), although commonly present in cultivated crops, represent a largely overlooked symbiosis, and their diversity and ecological functions under field conditions remain poorly understood. The co-occurrence of M-FRE and Glomeromycotina arbuscular mycorrhizal fungi (G-AMF) was assessed in field-grown durum wheat (Triticum turgidum subsp. durum), testing the effects of combined water and nitrogen stress on root colonization and fungal community diversity in roots, rhizosphere, and extra-radical hyphae. The M-FRE colonization was reduced under combined stress but was unaffected by wheat genotype. In contrast, G-AMF colonization varied among genotypes and was insensitive to this combined stress. While G-AMF colonization correlated with root traits, M-FRE abundance was rather determined by soil properties and the applied stress. Colonization by M-FRE but not by G-AMF correlated with nitrogen and phosphorus uptake in plant shoots. Partial 18 S metabarcoding detected 74 G-AMF taxa and 12 M-FRE taxa, some shared across compartments, revealing active growth of M-FRE extra-radical hyphae. Stress had contrasting effects on diversity: G-AMF alpha diversity remained stable, whereas M-FRE diversity declined, with stress driving distinct community structures for both groups. Collectively, our results suggest that M-FRE and G-AMF are structured by distinct ecological drivers, supporting functional differentiation between these morphologically similar symbioses.