Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, Chile

Abstract Arbuscular mycorrhizal fungi (AMF) have an important role on the ecosystem stability promoting water and nutrient acquisition by plants and allowing their growth under stress conditions including drought and salinity. This study aimed at describing the colonization of native AMF associated...

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Autores principales:	Medina,J, Meier,S, Rubio,R, Curaqueo,G, Borie,F, Aguilera,P, Oehl,F, Cornejo,P
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2015
Materias:	Rhizosphere microorganisms nutrients AMF communities salinity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000100012
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spelling	oai:scielo:S0718-951620150001000122015-06-08Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, ChileMedina,JMeier,SRubio,RCuraqueo,GBorie,FAguilera,POehl,FCornejo,P Rhizosphere microorganisms nutrients AMF communities salinity Abstract Arbuscular mycorrhizal fungi (AMF) have an important role on the ecosystem stability promoting water and nutrient acquisition by plants and allowing their growth under stress conditions including drought and salinity. This study aimed at describing the colonization of native AMF associated to pioneer plant species growing at the mouth of lake Budi, which receive seasonally marine water. For this, root samples and rhizosphere substrate of Polygonum maritimum, Carpobrotus chilensis, Ambrosia chamissonis, Ammophyla arenaria were collected and analyzed. Mycorrhizal root colonization, spore and hyphal density, and some soil chemical properties (pH, conductivity, organic matter -OM-, and microbial activity) were determined. Results showed that A. Arenaria presented the highest root colonization (53%), mycelium (10 m g-1) and AMF spores (300 spores in 100g of substrate) densities, which were highly correlated with an elevated OM content (1.64%; r=0.53, r=0.48 y r=0.87, respectively) and soil microbial activity (3.57 µg fluoresce in g-1 h-1; r=0.89 r=0.76 and r=0.53, respectively). On the other hand, a low AMF species richness was found in the rhizospheric soils of all four evaluated plants, finding a total of five AMF species. Nevertheless, one of these corresponds to a new specie (Corymbiglomus pacificum), which was associated to A. arenaria. Our results suggest an important role of AMF associated to pioneer plants in saline ecosystems, especially enhancing the establishment of A. arenaria and Amb. chamissonis, which could promote a further nurse effect that allow the establishment of other plant species. AM fungi could be considered as a biotechnological tool since they could be used for stabilization of coastal ecosystems, and in soils under saline or hydric limitations.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.15 n.1 20152015-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000100012en10.4067/S0718-95162015005000012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Rhizosphere microorganisms nutrients AMF communities salinity
spellingShingle	Rhizosphere microorganisms nutrients AMF communities salinity Medina,J Meier,S Rubio,R Curaqueo,G Borie,F Aguilera,P Oehl,F Cornejo,P Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, Chile
description	Abstract Arbuscular mycorrhizal fungi (AMF) have an important role on the ecosystem stability promoting water and nutrient acquisition by plants and allowing their growth under stress conditions including drought and salinity. This study aimed at describing the colonization of native AMF associated to pioneer plant species growing at the mouth of lake Budi, which receive seasonally marine water. For this, root samples and rhizosphere substrate of Polygonum maritimum, Carpobrotus chilensis, Ambrosia chamissonis, Ammophyla arenaria were collected and analyzed. Mycorrhizal root colonization, spore and hyphal density, and some soil chemical properties (pH, conductivity, organic matter -OM-, and microbial activity) were determined. Results showed that A. Arenaria presented the highest root colonization (53%), mycelium (10 m g-1) and AMF spores (300 spores in 100g of substrate) densities, which were highly correlated with an elevated OM content (1.64%; r=0.53, r=0.48 y r=0.87, respectively) and soil microbial activity (3.57 µg fluoresce in g-1 h-1; r=0.89 r=0.76 and r=0.53, respectively). On the other hand, a low AMF species richness was found in the rhizospheric soils of all four evaluated plants, finding a total of five AMF species. Nevertheless, one of these corresponds to a new specie (Corymbiglomus pacificum), which was associated to A. arenaria. Our results suggest an important role of AMF associated to pioneer plants in saline ecosystems, especially enhancing the establishment of A. arenaria and Amb. chamissonis, which could promote a further nurse effect that allow the establishment of other plant species. AM fungi could be considered as a biotechnological tool since they could be used for stabilization of coastal ecosystems, and in soils under saline or hydric limitations.
author	Medina,J Meier,S Rubio,R Curaqueo,G Borie,F Aguilera,P Oehl,F Cornejo,P
author_facet	Medina,J Meier,S Rubio,R Curaqueo,G Borie,F Aguilera,P Oehl,F Cornejo,P
author_sort	Medina,J
title	Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, Chile
title_short	Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, Chile
title_full	Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, Chile
title_fullStr	Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, Chile
title_full_unstemmed	Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, Chile
title_sort	arbuscular mycorrhizal status of pioneer plants from the mouth of lake budi, araucanía region, chile
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000100012
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Arbuscular mycorrhizal status of pioneer plants from the mouth of lake Budi, Araucanía Region, Chile

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