Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression
- Autores
- Teste, Francois; Laliberté, Etienne; Lambers, Hans; Auer, Yasha; Kramer, Susanne; Kandeler, Ellen
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Mycorrhizal fungi enhance plant phosphorus (P) acquisition via their extraradical hyphae (ERH) that scavenge nutrients outside root depletion zones. While soil P availability declines during ecosystem retrogression, how ERH biomass and scavenging vary during ecosystem retrogression remains unknown; it is expected to increase if plants allocate more carbon (C) to mycorrhizal fungi as P availability declines. We measured fungal and bacterial biomass using in-growth cores and lipid biomarkers along a 2-million-year dune chronosequence in an Australian biodiversity hotspot showing a ~60-fold decline in total soil P concentration with increasing soil age. We compared the levels of key fungal biomarkers (ergosterol, NLFA 16:1ω5, and PLFA 18:2ω6,9) between closed, mesh, and open cores during five months (four sampling dates including the wet winter months), thus allowing us to also determine the dynamics of mycorrhizal fungal scavenging.We found strikingly low and declining biomass of ERH with declining P availability, with minimal long-distance scavenging by ERH. Biomass of ERH was highest in the younger (c. 1 ka) soils that were comparatively rich in P and other nutrients. By contrast, the oldest, most P impoverished soils had the lowest biomass of ERH, despite high mycorrhizal root colonisation, and high abundance and diversity of potential plant hosts. We show that extremely low P availability constrains ERH biomass. Such low mycorrhizal fungal biomass highlights the need for a more 'mycocentric' view of plant-mycorrhizal relationships in old, severely P-impoverished ecosystems.
Fil: Teste, Francois. University of Western Australia; Australia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina
Fil: Laliberté, Etienne. University of Western Australia; Australia. University of Montreal; Canadá
Fil: Lambers, Hans. University of Western Australia; Australia
Fil: Auer, Yasha. University Of Hohenheim; Alemania
Fil: Kramer, Susanne. University Of Hohenheim; Alemania
Fil: Kandeler, Ellen. University Of Hohenheim; Alemania - Materia
-
ARBUSCULAR MYCORRHIZAL
ECOSYSTEM DEVELOPMENT
ECTOMYCORRHIZAL
EXTRARADICAL HYPHAE
ERGOSTEROL
NEUTRAL LIPID AND PHOSPHOLIPID FATTY ACID (NLFA, PLFA) - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/114611
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CONICET Digital (CONICET) |
spelling |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogressionTeste, FrancoisLaliberté, EtienneLambers, HansAuer, YashaKramer, SusanneKandeler, EllenARBUSCULAR MYCORRHIZALECOSYSTEM DEVELOPMENTECTOMYCORRHIZALEXTRARADICAL HYPHAEERGOSTEROLNEUTRAL LIPID AND PHOSPHOLIPID FATTY ACID (NLFA, PLFA)https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Mycorrhizal fungi enhance plant phosphorus (P) acquisition via their extraradical hyphae (ERH) that scavenge nutrients outside root depletion zones. While soil P availability declines during ecosystem retrogression, how ERH biomass and scavenging vary during ecosystem retrogression remains unknown; it is expected to increase if plants allocate more carbon (C) to mycorrhizal fungi as P availability declines. We measured fungal and bacterial biomass using in-growth cores and lipid biomarkers along a 2-million-year dune chronosequence in an Australian biodiversity hotspot showing a ~60-fold decline in total soil P concentration with increasing soil age. We compared the levels of key fungal biomarkers (ergosterol, NLFA 16:1ω5, and PLFA 18:2ω6,9) between closed, mesh, and open cores during five months (four sampling dates including the wet winter months), thus allowing us to also determine the dynamics of mycorrhizal fungal scavenging.We found strikingly low and declining biomass of ERH with declining P availability, with minimal long-distance scavenging by ERH. Biomass of ERH was highest in the younger (c. 1 ka) soils that were comparatively rich in P and other nutrients. By contrast, the oldest, most P impoverished soils had the lowest biomass of ERH, despite high mycorrhizal root colonisation, and high abundance and diversity of potential plant hosts. We show that extremely low P availability constrains ERH biomass. Such low mycorrhizal fungal biomass highlights the need for a more 'mycocentric' view of plant-mycorrhizal relationships in old, severely P-impoverished ecosystems.Fil: Teste, Francois. University of Western Australia; Australia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; ArgentinaFil: Laliberté, Etienne. University of Western Australia; Australia. University of Montreal; CanadáFil: Lambers, Hans. University of Western Australia; AustraliaFil: Auer, Yasha. University Of Hohenheim; AlemaniaFil: Kramer, Susanne. University Of Hohenheim; AlemaniaFil: Kandeler, Ellen. University Of Hohenheim; AlemaniaPergamon-Elsevier Science Ltd2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/114611Teste, Francois; Laliberté, Etienne; Lambers, Hans; Auer, Yasha; Kramer, Susanne; et al.; Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression; Pergamon-Elsevier Science Ltd; Soil Biology And Biochemistry; 92; 1-2016; 119-1320038-0717CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0038071715003491?via%3Dihubinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.soilbio.2015.09.021info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:38Zoai:ri.conicet.gov.ar:11336/114611instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:48:38.805CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression |
title |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression |
spellingShingle |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression Teste, Francois ARBUSCULAR MYCORRHIZAL ECOSYSTEM DEVELOPMENT ECTOMYCORRHIZAL EXTRARADICAL HYPHAE ERGOSTEROL NEUTRAL LIPID AND PHOSPHOLIPID FATTY ACID (NLFA, PLFA) |
title_short |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression |
title_full |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression |
title_fullStr |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression |
title_full_unstemmed |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression |
title_sort |
Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression |
dc.creator.none.fl_str_mv |
Teste, Francois Laliberté, Etienne Lambers, Hans Auer, Yasha Kramer, Susanne Kandeler, Ellen |
author |
Teste, Francois |
author_facet |
Teste, Francois Laliberté, Etienne Lambers, Hans Auer, Yasha Kramer, Susanne Kandeler, Ellen |
author_role |
author |
author2 |
Laliberté, Etienne Lambers, Hans Auer, Yasha Kramer, Susanne Kandeler, Ellen |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
ARBUSCULAR MYCORRHIZAL ECOSYSTEM DEVELOPMENT ECTOMYCORRHIZAL EXTRARADICAL HYPHAE ERGOSTEROL NEUTRAL LIPID AND PHOSPHOLIPID FATTY ACID (NLFA, PLFA) |
topic |
ARBUSCULAR MYCORRHIZAL ECOSYSTEM DEVELOPMENT ECTOMYCORRHIZAL EXTRARADICAL HYPHAE ERGOSTEROL NEUTRAL LIPID AND PHOSPHOLIPID FATTY ACID (NLFA, PLFA) |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Mycorrhizal fungi enhance plant phosphorus (P) acquisition via their extraradical hyphae (ERH) that scavenge nutrients outside root depletion zones. While soil P availability declines during ecosystem retrogression, how ERH biomass and scavenging vary during ecosystem retrogression remains unknown; it is expected to increase if plants allocate more carbon (C) to mycorrhizal fungi as P availability declines. We measured fungal and bacterial biomass using in-growth cores and lipid biomarkers along a 2-million-year dune chronosequence in an Australian biodiversity hotspot showing a ~60-fold decline in total soil P concentration with increasing soil age. We compared the levels of key fungal biomarkers (ergosterol, NLFA 16:1ω5, and PLFA 18:2ω6,9) between closed, mesh, and open cores during five months (four sampling dates including the wet winter months), thus allowing us to also determine the dynamics of mycorrhizal fungal scavenging.We found strikingly low and declining biomass of ERH with declining P availability, with minimal long-distance scavenging by ERH. Biomass of ERH was highest in the younger (c. 1 ka) soils that were comparatively rich in P and other nutrients. By contrast, the oldest, most P impoverished soils had the lowest biomass of ERH, despite high mycorrhizal root colonisation, and high abundance and diversity of potential plant hosts. We show that extremely low P availability constrains ERH biomass. Such low mycorrhizal fungal biomass highlights the need for a more 'mycocentric' view of plant-mycorrhizal relationships in old, severely P-impoverished ecosystems. Fil: Teste, Francois. University of Western Australia; Australia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina Fil: Laliberté, Etienne. University of Western Australia; Australia. University of Montreal; Canadá Fil: Lambers, Hans. University of Western Australia; Australia Fil: Auer, Yasha. University Of Hohenheim; Alemania Fil: Kramer, Susanne. University Of Hohenheim; Alemania Fil: Kandeler, Ellen. University Of Hohenheim; Alemania |
description |
Mycorrhizal fungi enhance plant phosphorus (P) acquisition via their extraradical hyphae (ERH) that scavenge nutrients outside root depletion zones. While soil P availability declines during ecosystem retrogression, how ERH biomass and scavenging vary during ecosystem retrogression remains unknown; it is expected to increase if plants allocate more carbon (C) to mycorrhizal fungi as P availability declines. We measured fungal and bacterial biomass using in-growth cores and lipid biomarkers along a 2-million-year dune chronosequence in an Australian biodiversity hotspot showing a ~60-fold decline in total soil P concentration with increasing soil age. We compared the levels of key fungal biomarkers (ergosterol, NLFA 16:1ω5, and PLFA 18:2ω6,9) between closed, mesh, and open cores during five months (four sampling dates including the wet winter months), thus allowing us to also determine the dynamics of mycorrhizal fungal scavenging.We found strikingly low and declining biomass of ERH with declining P availability, with minimal long-distance scavenging by ERH. Biomass of ERH was highest in the younger (c. 1 ka) soils that were comparatively rich in P and other nutrients. By contrast, the oldest, most P impoverished soils had the lowest biomass of ERH, despite high mycorrhizal root colonisation, and high abundance and diversity of potential plant hosts. We show that extremely low P availability constrains ERH biomass. Such low mycorrhizal fungal biomass highlights the need for a more 'mycocentric' view of plant-mycorrhizal relationships in old, severely P-impoverished ecosystems. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/114611 Teste, Francois; Laliberté, Etienne; Lambers, Hans; Auer, Yasha; Kramer, Susanne; et al.; Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression; Pergamon-Elsevier Science Ltd; Soil Biology And Biochemistry; 92; 1-2016; 119-132 0038-0717 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/114611 |
identifier_str_mv |
Teste, Francois; Laliberté, Etienne; Lambers, Hans; Auer, Yasha; Kramer, Susanne; et al.; Mycorrhizal fungal biomass and scavenging declines in phosphorus-impoverished soils during ecosystem retrogression; Pergamon-Elsevier Science Ltd; Soil Biology And Biochemistry; 92; 1-2016; 119-132 0038-0717 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0038071715003491?via%3Dihub info:eu-repo/semantics/altIdentifier/doi/10.1016/j.soilbio.2015.09.021 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613509610995712 |
score |
13.070432 |