Glomeromycota in mosses: arbuscular mycorrhizal structures in Leptodontium capituligerum (Pottiaceae) from the Argentine Chaco Serrano

Luis I. Jiménez; Myriam del V. Catania; Patricia L. Albornoz; Guillermo M. Suárez

doi:10.30972/bon.3529542

Autores

Luis I. Jiménez Facultad de Ciencias Naturales e IML, Miguel Lillo 205, Universidad Nacional de Tucumán. Instituto Criptogámico, Fundación Miguel Lillo. Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV-CONICET-UNT) https://orcid.org/0009-0009-8861-9839
Myriam del V. Catania Instituto Criptogámico, Fundación Miguel Lillo https://orcid.org/0000-0002-5354-2845
Patricia L. Albornoz Facultad de Ciencias Naturales e IML, Miguel Lillo 205, Universidad Nacional de Tucumán. Instituto de Morfología Vegetal, Fundación Miguel Lillo https://orcid.org/0000-0001-7399-1982
Guillermo M. Suárez Facultad de Ciencias Naturales e IML, Miguel Lillo 205, Universidad Nacional de Tucumán. Unidad Ejecutora Lillo (CONICET-Fundación Miguel Lillo) https://orcid.org/0000-0002-7131-0634

DOI:

https://doi.org/10.30972/bon.3529542

Palavras-chave:

Arbuscular mycorrhizal fungi, Bryophyta, Glomeromycota, mosses, Pottiaceae, symbiosis

Resumo

Arbuscular mycorrhizal fungi (AMF) associations in mosses remain poorly documented compared with those reported for liverworts and hornworts. In this contribution, we report fungal structures compatible with Glomeromycota in living gametophytes of Leptodontium capituligerum (Pottiaceae) from the Chaco Serrano of Tucumán, Argentina. Gametophytes were clarified with KOH, stained with trypan blue, and examined using light and scanning electron microscopy. Intercellular aseptate hyphae, intracellular hyphal coils, arbuscules, vesicles, and spores morphologically compatible with AMF were observed in leaves and stems. Both Arumand Paris-type morphologies were detected. In addition, dark septate endophytes and other septate fungi were associated with leaves and rhizoids. These observations provide additional evidence supporting fungal symbioses in mosses and reinforce the hypothesis that associations between Bryophyta and Glomeromycota may be more frequent than previously assumed.

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