TY - JOUR
T1 - Exploring plant root-fungal interactions in a neotropical freshwater wetland
AU - Santillán-Manjarrez, Jazmín
AU - Penélope Solís-Hernández, A.
AU - Castilla-Hernández, Patricia
AU - Maldonado-Mendoza, Ignacio E.
AU - Vela-Correa, Gilberto
AU - Chimal-Hernández, Aurora
AU - Hernández-Díaz, Claudia
AU - Signoret-Poillon, Martha
AU - van Tuinen, Diederik
AU - Rivera-Becerril, Facundo
N1 - Publisher Copyright:
© 2019 Sociedad Botanica de Mexico, A.C. All rights reserved.
PY - 2019
Y1 - 2019
N2 - Background: Wetlands in Neotropics harbor high fungal diversity, including arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE). This study describes the interaction of plant roots with AMF and DSE in a freshwater wetland belonging to a hotspot of biodiversity. Hypothesis: Differential root colonization between arbuscular mycorrhizal and dark septate endophyte fungi is influenced by plant species and abiotic conditions in a freshwater wetland. Studied species: Plant species colonized by arbuscular mycorrhizal and dark septate endophyte fungi. Methods: Properties of soils and the water column, floristic composition, root colonization by AMF and DSE, and molecular identification of AMF inside roots were studied. Results: Soils were Gleysol and flooded during the rainy season. Most of identified plant species were herbaceous, with Cyperus articulatus and Mimosa pigra as the dominant species. Seven of 8 analyzed plant species exhibited differential co-colonization between AMF and DSE. Repeated sampling for one year under flooding/dry conditions demonstrated that C. articulatus and M. pigra were mainly associated with DSE and AMF, respectively. A positive correlation between dissolved O2 in the water column and fungal colonization was observed in C. articulatus. Glomerales and Archaeosporales were molecularly identified inside roots containing arbuscules of M. pigra. Conclusions: Findings highlight differential coexistence between AMF and DSE in plant roots; fungal colonization was influenced by flooding/dry conditions in a neotropical wetland; the community of AMF inside arbusculated roots of M. pigra includes at least four clades.
AB - Background: Wetlands in Neotropics harbor high fungal diversity, including arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE). This study describes the interaction of plant roots with AMF and DSE in a freshwater wetland belonging to a hotspot of biodiversity. Hypothesis: Differential root colonization between arbuscular mycorrhizal and dark septate endophyte fungi is influenced by plant species and abiotic conditions in a freshwater wetland. Studied species: Plant species colonized by arbuscular mycorrhizal and dark septate endophyte fungi. Methods: Properties of soils and the water column, floristic composition, root colonization by AMF and DSE, and molecular identification of AMF inside roots were studied. Results: Soils were Gleysol and flooded during the rainy season. Most of identified plant species were herbaceous, with Cyperus articulatus and Mimosa pigra as the dominant species. Seven of 8 analyzed plant species exhibited differential co-colonization between AMF and DSE. Repeated sampling for one year under flooding/dry conditions demonstrated that C. articulatus and M. pigra were mainly associated with DSE and AMF, respectively. A positive correlation between dissolved O2 in the water column and fungal colonization was observed in C. articulatus. Glomerales and Archaeosporales were molecularly identified inside roots containing arbuscules of M. pigra. Conclusions: Findings highlight differential coexistence between AMF and DSE in plant roots; fungal colonization was influenced by flooding/dry conditions in a neotropical wetland; the community of AMF inside arbusculated roots of M. pigra includes at least four clades.
KW - Arbuscular mycorrhizal fungi
KW - Cyperus articulatus
KW - Dark septate endophyte fungi
KW - Gleysol
KW - Mimosa pigra
KW - Neotropics
UR - http://www.scopus.com/inward/record.url?scp=85078108988&partnerID=8YFLogxK
U2 - 10.17129/botsci.2221
DO - 10.17129/botsci.2221
M3 - Artículo
AN - SCOPUS:85078108988
SN - 2007-4298
VL - 97
SP - 661
EP - 674
JO - Botanical Sciences
JF - Botanical Sciences
IS - 4
ER -