Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree
Tripartite interactions between legumes and their root symbionts (rhizobia and arbuscular mycorrhizal fungi, AMF) are poorly understood, although it is well established that only specific combinations of symbionts lead to optimal plant growth. A classic example in which to investigate such interactions is the Brazilian legume tree Piptadenia gonoacantha (Caesalpinioideae), for which efficient nodulation has been described as dependent on the presence of AMF symbiosis. In this study, we compared the nodulation behaviour of several rhizobial strains with or without AMF inoculation, and performed analyses on nodulation, nodule cytology, N‐fixing efficiency, and plant growth response. Nodulation of P. gonoacantha does not rely on the presence of AMF, but mycorrhization was rhizobial strain‐dependent, and nodule effectiveness and plant growth were dependent on the presence of specific combinations of rhizobial strains and AMF. The co‐occurrence of both symbionts within efficient nodules and the differentiation of bacteroids within nodule cells were also demonstrated. Novel close interactions and interdependency for the establishment and/or functioning of these symbioses were also revealed in Piptadenia, thanks to immunocytochemical analyses. These data are discussed in terms of the evolutionary position of the newly circumscribed mimosoid clade within the Caesalpinioid subfamily and its relative proximity to non‐nodulated (but AMF‐associated) basal subfamilies.
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dig-cirad-fr-5886552021-11-09T09:38:27Z http://agritrop.cirad.fr/588655/ http://agritrop.cirad.fr/588655/ Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree. Bournaud Caroline, James Euan K., De Faria Sergio Miana, Lebrun Michel, Melkonian Rémy, Duponnois Robin, Tisseyre Pierre, Moulin Lionel, Prin Yves. 2018. Plant, Cell and Environment, 41 (9) : 2008-2020.https://doi.org/10.1111/pce.13095 <https://doi.org/10.1111/pce.13095> Researchers Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree Bournaud, Caroline James, Euan K. De Faria, Sergio Miana Lebrun, Michel Melkonian, Rémy Duponnois, Robin Tisseyre, Pierre Moulin, Lionel Prin, Yves eng 2018 Plant, Cell and Environment F62 - Physiologie végétale - Croissance et développement P34 - Biologie du sol K01 - Foresterie - Considérations générales Brésil http://aims.fao.org/aos/agrovoc/c_1070 Tripartite interactions between legumes and their root symbionts (rhizobia and arbuscular mycorrhizal fungi, AMF) are poorly understood, although it is well established that only specific combinations of symbionts lead to optimal plant growth. A classic example in which to investigate such interactions is the Brazilian legume tree Piptadenia gonoacantha (Caesalpinioideae), for which efficient nodulation has been described as dependent on the presence of AMF symbiosis. In this study, we compared the nodulation behaviour of several rhizobial strains with or without AMF inoculation, and performed analyses on nodulation, nodule cytology, N‐fixing efficiency, and plant growth response. Nodulation of P. gonoacantha does not rely on the presence of AMF, but mycorrhization was rhizobial strain‐dependent, and nodule effectiveness and plant growth were dependent on the presence of specific combinations of rhizobial strains and AMF. The co‐occurrence of both symbionts within efficient nodules and the differentiation of bacteroids within nodule cells were also demonstrated. Novel close interactions and interdependency for the establishment and/or functioning of these symbioses were also revealed in Piptadenia, thanks to immunocytochemical analyses. These data are discussed in terms of the evolutionary position of the newly circumscribed mimosoid clade within the Caesalpinioid subfamily and its relative proximity to non‐nodulated (but AMF‐associated) basal subfamilies. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/588655/1/Bournaud_et_al-2018-Plant%252C_Cell_%2526_Environment.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1111/pce.13095 10.1111/pce.13095 info:eu-repo/semantics/altIdentifier/doi/10.1111/pce.13095 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1111/pce.13095 |
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F62 - Physiologie végétale - Croissance et développement P34 - Biologie du sol K01 - Foresterie - Considérations générales http://aims.fao.org/aos/agrovoc/c_1070 F62 - Physiologie végétale - Croissance et développement P34 - Biologie du sol K01 - Foresterie - Considérations générales http://aims.fao.org/aos/agrovoc/c_1070 |
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F62 - Physiologie végétale - Croissance et développement P34 - Biologie du sol K01 - Foresterie - Considérations générales http://aims.fao.org/aos/agrovoc/c_1070 F62 - Physiologie végétale - Croissance et développement P34 - Biologie du sol K01 - Foresterie - Considérations générales http://aims.fao.org/aos/agrovoc/c_1070 Bournaud, Caroline James, Euan K. De Faria, Sergio Miana Lebrun, Michel Melkonian, Rémy Duponnois, Robin Tisseyre, Pierre Moulin, Lionel Prin, Yves Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree |
description |
Tripartite interactions between legumes and their root symbionts (rhizobia and arbuscular mycorrhizal fungi, AMF) are poorly understood, although it is well established that only specific combinations of symbionts lead to optimal plant growth. A classic example in which to investigate such interactions is the Brazilian legume tree Piptadenia gonoacantha (Caesalpinioideae), for which efficient nodulation has been described as dependent on the presence of AMF symbiosis. In this study, we compared the nodulation behaviour of several rhizobial strains with or without AMF inoculation, and performed analyses on nodulation, nodule cytology, N‐fixing efficiency, and plant growth response. Nodulation of P. gonoacantha does not rely on the presence of AMF, but mycorrhization was rhizobial strain‐dependent, and nodule effectiveness and plant growth were dependent on the presence of specific combinations of rhizobial strains and AMF. The co‐occurrence of both symbionts within efficient nodules and the differentiation of bacteroids within nodule cells were also demonstrated. Novel close interactions and interdependency for the establishment and/or functioning of these symbioses were also revealed in Piptadenia, thanks to immunocytochemical analyses. These data are discussed in terms of the evolutionary position of the newly circumscribed mimosoid clade within the Caesalpinioid subfamily and its relative proximity to non‐nodulated (but AMF‐associated) basal subfamilies. |
format |
article |
topic_facet |
F62 - Physiologie végétale - Croissance et développement P34 - Biologie du sol K01 - Foresterie - Considérations générales http://aims.fao.org/aos/agrovoc/c_1070 |
author |
Bournaud, Caroline James, Euan K. De Faria, Sergio Miana Lebrun, Michel Melkonian, Rémy Duponnois, Robin Tisseyre, Pierre Moulin, Lionel Prin, Yves |
author_facet |
Bournaud, Caroline James, Euan K. De Faria, Sergio Miana Lebrun, Michel Melkonian, Rémy Duponnois, Robin Tisseyre, Pierre Moulin, Lionel Prin, Yves |
author_sort |
Bournaud, Caroline |
title |
Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree |
title_short |
Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree |
title_full |
Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree |
title_fullStr |
Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree |
title_full_unstemmed |
Interdependency of efficient nodulation and arbuscular mycorrhization in Piptadenia gonoacantha, a Brazilian legume tree |
title_sort |
interdependency of efficient nodulation and arbuscular mycorrhization in piptadenia gonoacantha, a brazilian legume tree |
url |
http://agritrop.cirad.fr/588655/ http://agritrop.cirad.fr/588655/1/Bournaud_et_al-2018-Plant%252C_Cell_%2526_Environment.pdf |
work_keys_str_mv |
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