Data described in the article "Unraveling the diversity of hyphal explorative traits among Rhizophagus irregularis genotypes"

The dataset includes supplementary Figures, tables and the results of two experiments published in the study titled "Unraveling the diversity of hyphal explorative traits among Rhizophagus irregularis genotypes", available here: https://doi.org/10.1007/s00572-024-01154-8

The study compares seven homokaryotic isolates (genotypes) of Rhizophagus irregularis, aiming to characterize the range of intraspecific variability with respect to hyphal exploration of organic nitrogen (N) resources, and N supply to plants. Two experiments (one in vitro and one in open pots) were conducted, and 15N-chitin as the isotopically labeled organic N source was used.

Experiment 1 (in vitro), mycelium of all arbuscular mycorrhizal (AM) fungal genotypes transferred a higher amount of 15N to the plants than the passive transfer of 15N measured in the non-mycorrhizal (NM) controls. Noticeably, certain genotypes (e.g., LPA9) showed higher extraradical mycelium biomass production but not necessarily greater 15N acquisition than the others. 

Experiment 2 (in pots) highlighted that some of the AM fungal genotypes (e.g., MA2, STSI) exhibited higher rates of targeted hyphal exploration of chitin-enriched zones, indicative of distinct N exploration patterns from the other genotypes. Dataset contain photos and other recorded parameters during the experiment 1 and experiment 2.