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Abstract:

High-altitude hypersaline Andean wetlands are considered stressful environments by the prevalence of extreme abiotic conditions affecting both plant host and fungal root endophytes. Puccinellia frigida (Phil.) Johnston, a dominant plant species inhabiting the margins of these wetlands over 4000. m.a.s.l. in Northwest Argentina, is frequently colonized by fungal root endophytes. Here we examined the nature and dynamics of fungal root colonization on this plant species in three different wetlands (six sampling sites) and two growing seasons. Morphologically diverse septate fungi and chytrids were observed in root samples of P. frigida in all sampling sites, whereas arbuscular mycorrhizal fungi were found only in two sites. The level of colonization of chytrids and septate fungi differed significantly both between sites and seasons. Soil organic matter and electrical conductivity were the only habitat parameters significantly related to the observed differences. The widespread occurrence of non-destructive fungal associations suggest an important role for plant survival in extreme environments. © 2013 Elsevier B.V.

Registro:

Documento: Artículo
Título:Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands
Autor:Vanesa, S.; Carolina, R.; Alejandra, R.M.; Gabriela, C.; Alicia, G.; Adriana, A.-R.; Sebastián, F.
Filiación:Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad de Buenos Aires (UBA), Ciudad Universitaria, 4to piso Pabellón 2, 1428 Buenos Aires, Argentina
Centro Regional de Investigaciones Científicas y Transferencia Tecnológica, CRILAR-CONICET, Entre Ríos y Mendoza, 5301 Anillaco, La Rioja, Argentina
Palabras clave:Andean wetlands; Mycorrhiza; Puccinellia frigida; Salinity; Stressful environment; arbuscular mycorrhiza; electrical conductivity; endophyte; environmental stress; fungus; grass; growing season; habitat quality; host plant; hypersaline environment; mycorrhiza; root colonization; salinity; soil organic matter; soil profile; survival; wetland; Andes; Arbuscular; Fungi; Puccinellia
Año:2013
Volumen:108
Página de inicio:26
Página de fin:32
DOI: http://dx.doi.org/10.1016/j.aquabot.2013.03.001
Título revista:Aquatic Botany
Título revista abreviado:Aquatic Bot.
ISSN:03043770
CODEN:AQBOD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043770_v108_n_p26_Vanesa

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Citas:

---------- APA ----------
Vanesa, S., Carolina, R., Alejandra, R.M., Gabriela, C., Alicia, G., Adriana, A.-R. & Sebastián, F. (2013) . Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands. Aquatic Botany, 108, 26-32.
http://dx.doi.org/10.1016/j.aquabot.2013.03.001
---------- CHICAGO ----------
Vanesa, S., Carolina, R., Alejandra, R.M., Gabriela, C., Alicia, G., Adriana, A.-R., et al. "Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands" . Aquatic Botany 108 (2013) : 26-32.
http://dx.doi.org/10.1016/j.aquabot.2013.03.001
---------- MLA ----------
Vanesa, S., Carolina, R., Alejandra, R.M., Gabriela, C., Alicia, G., Adriana, A.-R., et al. "Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands" . Aquatic Botany, vol. 108, 2013, pp. 26-32.
http://dx.doi.org/10.1016/j.aquabot.2013.03.001
---------- VANCOUVER ----------
Vanesa, S., Carolina, R., Alejandra, R.M., Gabriela, C., Alicia, G., Adriana, A.-R., et al. Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands. Aquatic Bot. 2013;108:26-32.
http://dx.doi.org/10.1016/j.aquabot.2013.03.001