Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands
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...
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2013
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043770_v108_n_p26_Vanesa http://hdl.handle.net/20.500.12110/paper_03043770_v108_n_p26_Vanesa |
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paper:paper_03043770_v108_n_p26_Vanesa2023-06-08T15:29:14Z Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands 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 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. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043770_v108_n_p26_Vanesa http://hdl.handle.net/20.500.12110/paper_03043770_v108_n_p26_Vanesa |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
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 |
| spellingShingle |
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 Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands |
| topic_facet |
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 |
| description |
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. |
| title |
Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands |
| title_short |
Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands |
| title_full |
Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands |
| title_fullStr |
Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands |
| title_full_unstemmed |
Fungal root colonization of Puccinellia frigida (Phil.) Johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline Andean wetlands |
| title_sort |
fungal root colonization of puccinellia frigida (phil.) johnston, a dominant grass species inhabiting the margins of high-altitude hypersaline andean wetlands |
| publishDate |
2013 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043770_v108_n_p26_Vanesa http://hdl.handle.net/20.500.12110/paper_03043770_v108_n_p26_Vanesa |
| _version_ |
1768543846024609792 |