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Diversity and colonization of arbuscular mycorrhizal fungi in the tree fern Alsophila firma in rainy and dry season |
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| Authors: | Luis A Lara-Pérez Juan C Noa-Carrazana Sergio Hernández-González Enrique Alarcón-Gutiérrez Lázaro R Sánchez-Velásquez Ramón Zulueta-Rodríguez Liliana Lara-Capistrán Antonio Andrade-Torres |
| Institution: | 1. Instituto de Biotecnología y Ecología Aplicada, Universidad Veracruzana, Av. de las Culturas Veracruzanas No. 101, Campus para la Cultura, las Artes y el Deporte, col. Emiliano Zapata, 91090, Xalapa, Veracruz, Mexico 2. Facultad de Estadística e Informática, Universidad Veracruzana, Xalapa, Av. Xalapa esq. Manuel ávila Camacho s/n, 91020, Xalapa, Veracruz, Mexico 3. Laboratorio de Organismos Benéficos, Facultad de Ciencias Agrícolas, Universidad Veracruzana, Campus Xalapa, Circuito Universitario Gonzalo Aguirre Beltrán s/n, Zona Universitaria, 91090, Xalapa, Veracruz, Mexico |
| Abstract: | Alsophila firma is a deciduous tree fern considered as an emblematic species of Mexican tropical montane cloud forest (TMCF). We studied spores diversity, structure and colonization by arbuscular mycorrhizal fungi (AMF) within the roots of the Alsophila firma in rainy and dry season. Eighteen species of the genera Acaulospora (5), Gigaspora (4), Glomus (4), Funneliformis (2), Sclerocystis (2) and Scutellospora (1) were identified. The species F. constrictum, F. geosporum, Gigaspora albida, G. decipiens, Glomus microaggregatum and Sclerocystis coremioides are reported for the first time in TMCF. The dominant genera were Funneliformis and Acaulospora. In rainy season, a higher richness (H′ t0.005(2)9?=?4.78) and evenness (E) of AMF spores was recorded, compared to the dry season. However, the degree of colonization was statistically significant higher in the dry season. This study is the first to estimate the species richness of AMF associated with the rhizosphere of a fern in Mexico as well as for A. firma. |
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