Interactions between abundant fungal species influence the fungal community assemblage on limestone
Cita: Morón, A., Gómez-Cornelio, S., Ortega-Morales, B.O., De la Rosa-García, S., Partida-Martínez, L.P., Quintana, P., et al. 2017. Interactions between abundant fungal species influence the fungal community assemblage on limestone. Plos One. 12 (12). DOI:10.1371/journal.pone.0188443.
En: Plos One. Vol. 12, no. 12(2017)ISSN: 1932-6203
Fecha de realización: 2017/06/01
Tipo: Artículo con arbitraje
Tema(s): Microbiología, Micología, Ecología
Resumen: "The assembly of fungal communities on stone materials is mainly influenced by the differential
bioreceptivity of such materials and environmental conditions. However, little is known
about the role of fungal interactions in the colonization and establishment of fungal species.
We analyzed the effects of intra- and interspecific interactions between 11 species of fungi
in oligotrophic and copiotrophic media and on limestone coupons. In a previous study, these
species were the most frequently isolated in the epilithic biofilms of limestone walls exposed
to a subtropical climate. In the culture media, we found a greater frequency of intra- and
interspecific inhibitory effects in the oligotrophic medium than in the copiotrophic medium.
On the limestone coupons, all fungi were able to establish; however, the colonization success
rate varied significantly. Cladosporium cladosporioides had a less extensive colonization
in isolation (control) than in dual interactions (coexistence) with other species. Phoma
eupyrena exhibited the highest colonization success rate and competitive dominance
among all tested species. X-ray diffraction (XRD) and scanning electron microscope (SEM)
analyses revealed that Pestalotiopsis maculans and Paraconiothyrium sp. produced calcium
oxalate crystals during their growth on coupon surfaces, both in isolation and in dual
interactions. Our results demonstrate that interactions between abundant fungal species
influence the fungal colonization on substrates, the biomineralization and the fungal community
assemblage growing in limestone biofilms."