Occurrence of arbuscular mycorrhizal fungi in high altitude sites of the Patagonian Altoandina region in Nahuel Huapi National Park (Argentina)

Plants interact with beneficial microbes living in their rhizosphere, promoting their growth and development. In arid ecosystems, specific plant-associated microbes grant plants access to nutrients that would otherwise be inaccessible. Arbuscular mycorrhizal fungi (AMF) are probably one of the better known belowground functional networks with plants. AMF plays a crucial role in plant performance and consequently in ecosystem functioning. AMF activities also determine the bio-availability of nutrients and therefore soil fertility. The main objective of the present study was to evaluate the plant-AMF interactions on soil functions under arid ecosystem in Tunisia. AMF colonization was evaluated by visual observation of AMF in fine roots of Astragalus corrugatus and Lotus creticus on Bou-Hedma National Park in Tunisia. Mycorrhizal colonization varied between plants, and the spore number was significantly different across rhizosphere soils. Statistical analysis showed a clearly positive correlation between the number of spores and plant-mycorrhizal intensity. For microbiological proprieties, our results showed that mycorrhizal plants improved significantly the different microbiological parameters. The results of the present study specified the association plant-AMF and highlight AMF importance as a tailored mechanism of plant adaptation to arid ecosystems.

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Diversity of arbuscular mycorrhizal fungi in pasture areas in the Serra do Itajaí National Park

Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences ◽

10.5039/agraria.v13i2a5513 ◽

2018 ◽

Vol 13 (2) ◽

pp. 1-7

Author(s):

S.C. Cristo ◽

R.O. Fors ◽

A.G. Carvalho

Keyword(s):

Arbuscular Mycorrhizal Fungi ◽

Mycorrhizal Fungi ◽

National Park ◽

Arbuscular Mycorrhizal

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Occurrence of Arbuscular Mycorrhizal Fungi across a Range of Alpine Humus Soil Conditions in Kosciuszko National Park, Australia

Arctic Antarctic and Alpine Research ◽

10.1080/15230430.2000.12003362 ◽

2000 ◽

Vol 32 (3) ◽

pp. 255-261 ◽

Cited By ~ 2

Author(s):

Stuart Johnston ◽

Megan Ryan

Keyword(s):

Arbuscular Mycorrhizal Fungi ◽

Mycorrhizal Fungi ◽

National Park ◽

Arbuscular Mycorrhizal ◽

Soil Conditions ◽

Humus Soil

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Occurrence and diversity of arbuscular mycorrhizal fungi in trap cultures from El Palmar National Park soils

European Journal of Soil Biology ◽

10.1016/j.ejsobi.2011.05.002 ◽

2011 ◽

Vol 47 (4) ◽

pp. 230-235 ◽

Cited By ~ 10

Author(s):

Silvana Velázquez ◽

Marta Cabello

Keyword(s):

Arbuscular Mycorrhizal Fungi ◽

Mycorrhizal Fungi ◽

National Park ◽

Arbuscular Mycorrhizal

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Mycorrhizal associations in Polylepis woodlands of Central Argentina

Canadian Journal of Botany ◽

10.1139/b07-042 ◽

2007 ◽

Vol 85 (5) ◽

pp. 526-531 ◽

Cited By ~ 15

Author(s):

Eugenia Menoyo ◽

Alejandra G. Becerra ◽

Daniel Renison

Keyword(s):

Arbuscular Mycorrhizal Fungi ◽

Plant Species ◽

Mycorrhizal Fungi ◽

National Park ◽

Arbuscular Mycorrhizal ◽

Dark Septate Endophyte ◽

Central Argentina ◽

Mycorrhizal Associations ◽

Colonization Patterns ◽

First Time

Polylepis woodlands are one of the most threatened mountain ecosystems of South America, and their restoration is a high priority. To assess the mycorrhizal status in Polylepis woodlands of “Quebrada del Condorito” National Park (Córdoba Mountains, Central Argentina), we examined the roots of 22 plant species, belonging to 14 families and determined morphological types of arbuscular mycorrhiza (Arum and Paris type) and colonization level. The 22 species were colonized by arbuscular mycorrhizal fungi and dark septate endophytes. Different arbuscular mycorrhizal structures and colonization patterns were observed, although Paris-type colonization was predominant. Fourteen plant species are reported for the first time as hosts of arbuscular mycorrhizal fungi. We conclude that arbuscular mycorrhizal fungi and dark septate endophyte hosts are widespread in the Polylepis woodlands of Central Argentina and should receive special attention in future revegetation programs.

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