IMIBIO-SL   20937
INSTITUTO MULTIDISCIPLINARIO DE INVESTIGACIONES BIOLOGICAS DE SAN LUIS
Unidad Ejecutora - UE
artículos
Título:
Arbuscular mycorrhizal and dematiaceous endophytic fungi associated to the native South American palm "Caranday" (Trithrinax campestris, Arecaceae)
Autor/es:
• GIORDANO PAULA G., M. A. LUGO AND E. M. CRESPO
Revista:
MYCORRHIZA
Referencias:
Año: 2009
ISSN:
0940-6360
Resumen:
In this study the arbuscular mycorrhiza (AM) and dark septate endophytic fungi (DSE) associated to the native South American palm "Caranday" (Trithrinax campestris, Arecaceae) were analyzed. This palm is endemic of the arid and semi-arid phytogeopgraphic province of “Chaco” and “Espinal”. Two populations of T. campestris were studied under different degree of disturbances. We have found differences in root colonization by AM and DSE between the populations which could reflect the negative impact on both associations produced by the human environmental disturbance. The palm population under largest disturbance showed low colonization AM-DSE accompanied by the high presence of root hairs. Moreover this is a contribution to few studies conducted on South American palms in arid and semi-arid environments such as forming dual relationship AM-DSE. Also, AM and DSE were positively correlated, suggesting a possible facilitation effect of symbiosis between them. We reported for the first time an intermediate Arum-Paris morphology of colonization for South American drought-tolerant palms.