Ectomycorrhizal and arbuscular mycorrhizal colonization of Alnus acuminata from Calilegua National Park (Argentina).
Identifieur interne : 003608 ( Main/Exploration ); précédent : 003607; suivant : 003609Ectomycorrhizal and arbuscular mycorrhizal colonization of Alnus acuminata from Calilegua National Park (Argentina).
Auteurs : Alejandra Becerra [Argentine] ; Marcelo R. Zak ; Thomas R. Horton ; Jorge MicoliniSource :
- Mycorrhiza [ 0940-6360 ] ; 2005.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Azote, Composés chimiques organiques, Eau, Sol.
- croissance et développement : Mycorhizes.
- microbiologie : Alnus.
- Arbres, Argentine, Concentration en ions d'hydrogène, Saisons.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Nitrogen, Organic Chemicals, Soil, Water.
- growth & development : Mycorrhizae.
- microbiology : Alnus.
- Argentina, Hydrogen-Ion Concentration, Seasons, Trees.
Abstract
The objective of this study was to determine patterns of ectomycorrhizas (ECM) and arbuscular mycorrhizas (AM) colonization associated with Alnus acuminata (Andean alder), in relation to soil parameters (electrical conductivity, field H(2)O holding capacity, pH, available P, organic matter, and total N) at two different seasons (autumn and spring). The study was conducted in natural forests of A. acuminata situated in Calilegua National Park (Jujuy, Argentina). Nine ECM morphotypes were found on A. acuminata roots. The ECM colonization was affected by seasonality and associated positively with field H(2)O holding capacity, pH, and total N and negatively associated with organic matter. Two morphotypes (Russula alnijorullensis and Tomentella sp. 3) showed significant differences between seasons. Positive and negative correlations were found between five morphotypes (Alnirhiza silkacea, Lactarius omphaliformis, Tomentella sp. 1, Tomentella sp. 3, and Lactarius sp.) and soil parameters (total N, pH, and P). A significant negative correlation was found between field H(2)O holding capacity and organic matter with AM colonization. Results of this study provide evidence that ECM and AM colonization of A. acuminata can be affected by some soil chemical edaphic parameters and indicate that some ECM morphotypes are sensitive to changes in seasonality and soil parameters.
DOI: 10.1007/s00572-005-0360-7
PubMed: 16034621
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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<author><name sortKey="Zak, Marcelo R" sort="Zak, Marcelo R" uniqKey="Zak M" first="Marcelo R" last="Zak">Marcelo R. Zak</name>
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<author><name sortKey="Horton, Thomas R" sort="Horton, Thomas R" uniqKey="Horton T" first="Thomas R" last="Horton">Thomas R. Horton</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alnus (microbiology)</term>
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<term>Mycorrhizae (growth & development)</term>
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<term>Organic Chemicals (analysis)</term>
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<term>Arbres (MeSH)</term>
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<term>Azote (analyse)</term>
<term>Composés chimiques organiques (analyse)</term>
<term>Concentration en ions d'hydrogène (MeSH)</term>
<term>Eau (analyse)</term>
<term>Mycorhizes (croissance et développement)</term>
<term>Saisons (MeSH)</term>
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<term>Organic Chemicals</term>
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<front><div type="abstract" xml:lang="en">The objective of this study was to determine patterns of ectomycorrhizas (ECM) and arbuscular mycorrhizas (AM) colonization associated with Alnus acuminata (Andean alder), in relation to soil parameters (electrical conductivity, field H(2)O holding capacity, pH, available P, organic matter, and total N) at two different seasons (autumn and spring). The study was conducted in natural forests of A. acuminata situated in Calilegua National Park (Jujuy, Argentina). Nine ECM morphotypes were found on A. acuminata roots. The ECM colonization was affected by seasonality and associated positively with field H(2)O holding capacity, pH, and total N and negatively associated with organic matter. Two morphotypes (Russula alnijorullensis and Tomentella sp. 3) showed significant differences between seasons. Positive and negative correlations were found between five morphotypes (Alnirhiza silkacea, Lactarius omphaliformis, Tomentella sp. 1, Tomentella sp. 3, and Lactarius sp.) and soil parameters (total N, pH, and P). A significant negative correlation was found between field H(2)O holding capacity and organic matter with AM colonization. Results of this study provide evidence that ECM and AM colonization of A. acuminata can be affected by some soil chemical edaphic parameters and indicate that some ECM morphotypes are sensitive to changes in seasonality and soil parameters.</div>
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<Abstract><AbstractText>The objective of this study was to determine patterns of ectomycorrhizas (ECM) and arbuscular mycorrhizas (AM) colonization associated with Alnus acuminata (Andean alder), in relation to soil parameters (electrical conductivity, field H(2)O holding capacity, pH, available P, organic matter, and total N) at two different seasons (autumn and spring). The study was conducted in natural forests of A. acuminata situated in Calilegua National Park (Jujuy, Argentina). Nine ECM morphotypes were found on A. acuminata roots. The ECM colonization was affected by seasonality and associated positively with field H(2)O holding capacity, pH, and total N and negatively associated with organic matter. Two morphotypes (Russula alnijorullensis and Tomentella sp. 3) showed significant differences between seasons. Positive and negative correlations were found between five morphotypes (Alnirhiza silkacea, Lactarius omphaliformis, Tomentella sp. 1, Tomentella sp. 3, and Lactarius sp.) and soil parameters (total N, pH, and P). A significant negative correlation was found between field H(2)O holding capacity and organic matter with AM colonization. Results of this study provide evidence that ECM and AM colonization of A. acuminata can be affected by some soil chemical edaphic parameters and indicate that some ECM morphotypes are sensitive to changes in seasonality and soil parameters.</AbstractText>
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