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Boletín de la Sociedad Argentina de Botánica

On-line version ISSN 1851-2372


LUGO, Mónica A; GIORDANO, Paula G; URCELAY, Carlos  and  CRESPO, Esteban M. Root colonization by fungal endophytes in Trithrinax campestris (Arecaceae) from semiarid ecosystems from Central Argentine. Bol. Soc. Argent. Bot. [online]. 2011, vol.46, n.3-4, pp.213-222. ISSN 1851-2372.

In arid and semiarid ecosystems, roots frequently form symbiosis with fungi that provides access to nutrients and water. Knowledge regarding the study of fungal symbionts colonizing native palms roots is still scarce. We described, quantified and compared fungal colonization in roots of Trithrinax campestris from two environmental situations: population with weak-burning-signs and population with strong-burning-signs. T. campestris was colonized by arbuscular-mycorrhizal-fungi (AMF) and dark-septate-endophytes (DSE). AMF colonization was an intermediate type between Arum and Paris. The AMF and DSE colonization and root hair production differed between populations. Our results suggest that in T. campestris the relation between fungal-symbionts and root-hair-production might be related to tolerance to burning and aridity.

Keywords : Arbuscular mycorrhizas; Dark septate endophytes; Dual associations; Fire disturbance native palm; Arid.

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