The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa
Acacia mearnsii is one of the most planted Australian Acacia around the world but is known to be highly invasive, threatening native habitats by competing with indigenous vegetation. The introduction of this species in the Algerian El Kala Biosphere reserve led to the invasion of natural formations to the detriment of Quercus suber, a native tree species. We hypothesized that shifts in soil microbial functions and ectomycorrhizal (EcM) fungal community structure triggered by this exotic Acacia species might correlate with a decrease of the early growth of Q. suber. Soil samples were thus collected from 3 different sites where the exotic species was at different stages of invasion in the Algerian El Kala Biosphere reserve, (i) a Q. suber forest free of A. mearnsii (site S1), (ii) a Q. suber/A. mearnsii mixed forest where the Australian Acacia has been recently detected (site S2) and (iii) pure stands of A. mearnsii formed more than 20 years ago (site S3). Plant growth, EcM community structure associated with Q. suber roots and soil microbial functionalities were assessed for 6 month-old cultures of Q. suber in glasshouse conditions. The results clearly demonstrated a strong deleterious impact of A. mearnsii invasion level on soil chemical characteristics, microbial functions and EcM community structure and colonization, correlated to a decrease in the early growth of Q. suber seedlings. The current study gives new insights into both the negative impact of exotic species on soil functioning and their effect on indigenous vegetation growth. These results may be used as a basis for improving the conservation practices of native tree species in such degraded areas as a complement of ecological strategies using indigenous ectotrophic earlysuccessional shrub species (eg. Cistus spp.) that our findings have shown to promote EcM multiplication and the early growth of native tree species.
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dig-cirad-fr-569575 |
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Francia |
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Biblioteca del CIRAD Francia |
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K01 - Foresterie - Considérations générales H60 - Mauvaises herbes et désherbage F40 - Écologie végétale P34 - Biologie du sol biodiversité introduction de plantes Acacia mearnsii Quercus suber croissance compétition végétale espèce envahissante biologie du sol Mycorhizé symbiose http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_5971 http://aims.fao.org/aos/agrovoc/c_43 http://aims.fao.org/aos/agrovoc/c_24697 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_5023 http://aims.fao.org/aos/agrovoc/c_7563 http://aims.fao.org/aos/agrovoc/c_5218 http://aims.fao.org/aos/agrovoc/c_259 K01 - Foresterie - Considérations générales H60 - Mauvaises herbes et désherbage F40 - Écologie végétale P34 - Biologie du sol biodiversité introduction de plantes Acacia mearnsii Quercus suber croissance compétition végétale espèce envahissante biologie du sol Mycorhizé symbiose http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_5971 http://aims.fao.org/aos/agrovoc/c_43 http://aims.fao.org/aos/agrovoc/c_24697 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_5023 http://aims.fao.org/aos/agrovoc/c_7563 http://aims.fao.org/aos/agrovoc/c_5218 http://aims.fao.org/aos/agrovoc/c_259 |
spellingShingle |
K01 - Foresterie - Considérations générales H60 - Mauvaises herbes et désherbage F40 - Écologie végétale P34 - Biologie du sol biodiversité introduction de plantes Acacia mearnsii Quercus suber croissance compétition végétale espèce envahissante biologie du sol Mycorhizé symbiose http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_5971 http://aims.fao.org/aos/agrovoc/c_43 http://aims.fao.org/aos/agrovoc/c_24697 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_5023 http://aims.fao.org/aos/agrovoc/c_7563 http://aims.fao.org/aos/agrovoc/c_5218 http://aims.fao.org/aos/agrovoc/c_259 K01 - Foresterie - Considérations générales H60 - Mauvaises herbes et désherbage F40 - Écologie végétale P34 - Biologie du sol biodiversité introduction de plantes Acacia mearnsii Quercus suber croissance compétition végétale espèce envahissante biologie du sol Mycorhizé symbiose http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_5971 http://aims.fao.org/aos/agrovoc/c_43 http://aims.fao.org/aos/agrovoc/c_24697 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_5023 http://aims.fao.org/aos/agrovoc/c_7563 http://aims.fao.org/aos/agrovoc/c_5218 http://aims.fao.org/aos/agrovoc/c_259 Boudiaf, Imene Baudoin, Ezékiel Sanguin, Hervé Beddiar, Arifa Thioulouse, Jean Galiana, Antoine Prin, Yves Le Roux, Christine Lebrun, Michel Duponnois, Robin The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa |
description |
Acacia mearnsii is one of the most planted Australian Acacia around the world but is known to be highly invasive, threatening native habitats by competing with indigenous vegetation. The introduction of this species in the Algerian El Kala Biosphere reserve led to the invasion of natural formations to the detriment of Quercus suber, a native tree species. We hypothesized that shifts in soil microbial functions and ectomycorrhizal (EcM) fungal community structure triggered by this exotic Acacia species might correlate with a decrease of the early growth of Q. suber. Soil samples were thus collected from 3 different sites where the exotic species was at different stages of invasion in the Algerian El Kala Biosphere reserve, (i) a Q. suber forest free of A. mearnsii (site S1), (ii) a Q. suber/A. mearnsii mixed forest where the Australian Acacia has been recently detected (site S2) and (iii) pure stands of A. mearnsii formed more than 20 years ago (site S3). Plant growth, EcM community structure associated with Q. suber roots and soil microbial functionalities were assessed for 6 month-old cultures of Q. suber in glasshouse conditions. The results clearly demonstrated a strong deleterious impact of A. mearnsii invasion level on soil chemical characteristics, microbial functions and EcM community structure and colonization, correlated to a decrease in the early growth of Q. suber seedlings. The current study gives new insights into both the negative impact of exotic species on soil functioning and their effect on indigenous vegetation growth. These results may be used as a basis for improving the conservation practices of native tree species in such degraded areas as a complement of ecological strategies using indigenous ectotrophic earlysuccessional shrub species (eg. Cistus spp.) that our findings have shown to promote EcM multiplication and the early growth of native tree species. |
format |
article |
topic_facet |
K01 - Foresterie - Considérations générales H60 - Mauvaises herbes et désherbage F40 - Écologie végétale P34 - Biologie du sol biodiversité introduction de plantes Acacia mearnsii Quercus suber croissance compétition végétale espèce envahissante biologie du sol Mycorhizé symbiose http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_5971 http://aims.fao.org/aos/agrovoc/c_43 http://aims.fao.org/aos/agrovoc/c_24697 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_5023 http://aims.fao.org/aos/agrovoc/c_7563 http://aims.fao.org/aos/agrovoc/c_5218 http://aims.fao.org/aos/agrovoc/c_259 |
author |
Boudiaf, Imene Baudoin, Ezékiel Sanguin, Hervé Beddiar, Arifa Thioulouse, Jean Galiana, Antoine Prin, Yves Le Roux, Christine Lebrun, Michel Duponnois, Robin |
author_facet |
Boudiaf, Imene Baudoin, Ezékiel Sanguin, Hervé Beddiar, Arifa Thioulouse, Jean Galiana, Antoine Prin, Yves Le Roux, Christine Lebrun, Michel Duponnois, Robin |
author_sort |
Boudiaf, Imene |
title |
The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa |
title_short |
The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa |
title_full |
The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa |
title_fullStr |
The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa |
title_full_unstemmed |
The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa |
title_sort |
exotic legume tree species, acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, quercus suber, in north africa |
url |
http://agritrop.cirad.fr/569575/ http://agritrop.cirad.fr/569575/1/document_569575.pdf |
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dig-cirad-fr-5695752024-01-28T21:28:55Z http://agritrop.cirad.fr/569575/ http://agritrop.cirad.fr/569575/ The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa. Boudiaf Imene, Baudoin Ezékiel, Sanguin Hervé, Beddiar Arifa, Thioulouse Jean, Galiana Antoine, Prin Yves, Le Roux Christine, Lebrun Michel, Duponnois Robin. 2013. Soil Biology and Biochemistry, 65 : 172-179.https://doi.org/10.1016/j.soilbio.2013.05.003 <https://doi.org/10.1016/j.soilbio.2013.05.003> The exotic legume tree species, Acacia mearnsii, alters microbial soil functionalities and the early development of a native tree species, Quercus suber, in North Africa Boudiaf, Imene Baudoin, Ezékiel Sanguin, Hervé Beddiar, Arifa Thioulouse, Jean Galiana, Antoine Prin, Yves Le Roux, Christine Lebrun, Michel Duponnois, Robin eng 2013 Soil Biology and Biochemistry K01 - Foresterie - Considérations générales H60 - Mauvaises herbes et désherbage F40 - Écologie végétale P34 - Biologie du sol biodiversité introduction de plantes Acacia mearnsii Quercus suber croissance compétition végétale espèce envahissante biologie du sol Mycorhizé symbiose http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_5971 http://aims.fao.org/aos/agrovoc/c_43 http://aims.fao.org/aos/agrovoc/c_24697 http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_49865 http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_5023 http://aims.fao.org/aos/agrovoc/c_7563 Afrique du Nord Algérie http://aims.fao.org/aos/agrovoc/c_5218 http://aims.fao.org/aos/agrovoc/c_259 Acacia mearnsii is one of the most planted Australian Acacia around the world but is known to be highly invasive, threatening native habitats by competing with indigenous vegetation. The introduction of this species in the Algerian El Kala Biosphere reserve led to the invasion of natural formations to the detriment of Quercus suber, a native tree species. We hypothesized that shifts in soil microbial functions and ectomycorrhizal (EcM) fungal community structure triggered by this exotic Acacia species might correlate with a decrease of the early growth of Q. suber. Soil samples were thus collected from 3 different sites where the exotic species was at different stages of invasion in the Algerian El Kala Biosphere reserve, (i) a Q. suber forest free of A. mearnsii (site S1), (ii) a Q. suber/A. mearnsii mixed forest where the Australian Acacia has been recently detected (site S2) and (iii) pure stands of A. mearnsii formed more than 20 years ago (site S3). Plant growth, EcM community structure associated with Q. suber roots and soil microbial functionalities were assessed for 6 month-old cultures of Q. suber in glasshouse conditions. The results clearly demonstrated a strong deleterious impact of A. mearnsii invasion level on soil chemical characteristics, microbial functions and EcM community structure and colonization, correlated to a decrease in the early growth of Q. suber seedlings. The current study gives new insights into both the negative impact of exotic species on soil functioning and their effect on indigenous vegetation growth. These results may be used as a basis for improving the conservation practices of native tree species in such degraded areas as a complement of ecological strategies using indigenous ectotrophic earlysuccessional shrub species (eg. Cistus spp.) that our findings have shown to promote EcM multiplication and the early growth of native tree species. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/569575/1/document_569575.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.soilbio.2013.05.003 10.1016/j.soilbio.2013.05.003 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.soilbio.2013.05.003 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.soilbio.2013.05.003 |