Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina)
- Autores
- Fernández Di Pardo, Agustina; Chiocchio, Viviana M.; Barrera, Viviana Andrea; Colombo, Roxana P.; Martinez, Alicia E.; Gasoni, Amelia Laura; Godeas, Alicia M.
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Orchidaceae is a highly dependent group on the Rhizoctonia complex that includes Ceratorhiza, Moniliopsis, Epulorhiza and Rhizoctonia, for seed germination and the development of new orchid plants. Thus, the isolation and identification of orchid mycorrhizal fungi are important to understand the orchid-fungus relationship, which can lead to the development of efficient conservation strategies by in vivo germination of seeds from endangered orchid plants. The aim of our work was to isolate and characterize the different mycorrhizal fungi found in roots of terrestrial orchids from Córdoba (Argentina), and, to learn about the natural habit and fungal associations in the Chaco Serrano woodland pristine region. In this study, bloomed orchid root and rhizosphere soil samples were obtained in two times from Valle de Punilla during spring of 2007; samples were kept in plastic bags until processed within 48 hours, and mycorrhizal condition confirmed assessing peloton presence. A total of 23 isolates of the orchideous mycorrhizal Rhizoctonia complex were obtained. The isolates were studied based on morphological characters and ITS-rDNA sequences. Morphological characteristics as color of colonies, texture, growth rate, hyphal diameter and length and presence of sclerotia were observed on culture media. To define the number of nuclei per cell, the isolates were grown in Petri dishes containing water-agar (WA) for three days at 25°C and stained with Safranine-O solution. The mycorrhizal fungi were grouped into binucleate (MSGib, 10 isolates) and multinucleate (MSGim, 13 isolates) based on morphological characteristics of the colonies. We obtained 1The ITS1-5.8s-ITS4 region that was amplified using primers ITS1 and ITS4. Based on DNA sequencing, isolates Q23 and Q29 were found to be related to species of Ceratobasidium. Isolates Q24 and Q4 were related to the binucleated anastomosis group AG-C of Rhizoctonia sp. The rest of the isolates grouped in the Ceratobasidium clade without grouping. From our knowledge this is the first report of the association of the AG-C testers with terrestrial orchids. A high specificity was observed in the symbiotic relationship. As the mycorrhizal fungal isolates were obtained from native orchids, they could be incorporated in conservation programes of endangered orchids in Argentina.
Instituto de Microbiología y Zoología Agrícola (IMYZA)
Fil: Fernández Di Pardo, Agustina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Fernández Di Pardo, Agustina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto en Biociencias Agrícolas y Ambientales (INBA). Cátedra Microbiología Agrícola y Ambiental; Argentina
Fil: Fernández Di Pardo, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chiocchio, Viviana M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto en Biociencias Agrícolas y Ambientales (INBA). Cátedra Microbiología Agrícola y Ambiental; Argentina
Fil: Barrera, Viviana Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: Colombo, Roxana P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Chiocchio, Viviana M. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martinez, Alicia E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Gasoni, Amelia Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: Godeas, Alicia M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina - Fuente
- Revista de Biología Tropical 63 (1) : 275-283 (marzo 2015)
- Materia
-
Mycorrhizae
Rhizoctonia
Orchidaceae
Cordoba (Argentina)
Epulorhiza
ITS-rDNA
Orquídeas - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/21482
Ver los metadatos del registro completo
id |
INTADig_4a26a1961264c15ebd490b273c5217cb |
---|---|
oai_identifier_str |
oai:localhost:20.500.12123/21482 |
network_acronym_str |
INTADig |
repository_id_str |
l |
network_name_str |
INTA Digital (INTA) |
spelling |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina)Fernández Di Pardo, AgustinaChiocchio, Viviana M.Barrera, Viviana AndreaColombo, Roxana P.Martinez, Alicia E.Gasoni, Amelia LauraGodeas, Alicia M.MycorrhizaeRhizoctoniaOrchidaceaeCordoba (Argentina)EpulorhizaITS-rDNAOrquídeasOrchidaceae is a highly dependent group on the Rhizoctonia complex that includes Ceratorhiza, Moniliopsis, Epulorhiza and Rhizoctonia, for seed germination and the development of new orchid plants. Thus, the isolation and identification of orchid mycorrhizal fungi are important to understand the orchid-fungus relationship, which can lead to the development of efficient conservation strategies by in vivo germination of seeds from endangered orchid plants. The aim of our work was to isolate and characterize the different mycorrhizal fungi found in roots of terrestrial orchids from Córdoba (Argentina), and, to learn about the natural habit and fungal associations in the Chaco Serrano woodland pristine region. In this study, bloomed orchid root and rhizosphere soil samples were obtained in two times from Valle de Punilla during spring of 2007; samples were kept in plastic bags until processed within 48 hours, and mycorrhizal condition confirmed assessing peloton presence. A total of 23 isolates of the orchideous mycorrhizal Rhizoctonia complex were obtained. The isolates were studied based on morphological characters and ITS-rDNA sequences. Morphological characteristics as color of colonies, texture, growth rate, hyphal diameter and length and presence of sclerotia were observed on culture media. To define the number of nuclei per cell, the isolates were grown in Petri dishes containing water-agar (WA) for three days at 25°C and stained with Safranine-O solution. The mycorrhizal fungi were grouped into binucleate (MSGib, 10 isolates) and multinucleate (MSGim, 13 isolates) based on morphological characteristics of the colonies. We obtained 1The ITS1-5.8s-ITS4 region that was amplified using primers ITS1 and ITS4. Based on DNA sequencing, isolates Q23 and Q29 were found to be related to species of Ceratobasidium. Isolates Q24 and Q4 were related to the binucleated anastomosis group AG-C of Rhizoctonia sp. The rest of the isolates grouped in the Ceratobasidium clade without grouping. From our knowledge this is the first report of the association of the AG-C testers with terrestrial orchids. A high specificity was observed in the symbiotic relationship. As the mycorrhizal fungal isolates were obtained from native orchids, they could be incorporated in conservation programes of endangered orchids in Argentina.Instituto de Microbiología y Zoología Agrícola (IMYZA)Fil: Fernández Di Pardo, Agustina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Fernández Di Pardo, Agustina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto en Biociencias Agrícolas y Ambientales (INBA). Cátedra Microbiología Agrícola y Ambiental; ArgentinaFil: Fernández Di Pardo, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Chiocchio, Viviana M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto en Biociencias Agrícolas y Ambientales (INBA). Cátedra Microbiología Agrícola y Ambiental; ArgentinaFil: Barrera, Viviana Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); ArgentinaFil: Colombo, Roxana P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Chiocchio, Viviana M. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Martinez, Alicia E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Gasoni, Amelia Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); ArgentinaFil: Godeas, Alicia M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaUniversidad de Costa Rica2025-02-27T10:17:33Z2025-02-27T10:17:33Z2015-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/21482https://revistas.ucr.ac.cr/index.php/rbt/article/view/142260034-77442215-2075https://doi.org/10.15517/rbt.v63i1.14226Revista de Biología Tropical 63 (1) : 275-283 (marzo 2015)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-29T13:47:10Zoai:localhost:20.500.12123/21482instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:47:10.459INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina) |
title |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina) |
spellingShingle |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina) Fernández Di Pardo, Agustina Mycorrhizae Rhizoctonia Orchidaceae Cordoba (Argentina) Epulorhiza ITS-rDNA Orquídeas |
title_short |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina) |
title_full |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina) |
title_fullStr |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina) |
title_full_unstemmed |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina) |
title_sort |
Mycorrhizal fungi isolated from native terrestrial orchids of pristine regions in Córdoba (Argentina) |
dc.creator.none.fl_str_mv |
Fernández Di Pardo, Agustina Chiocchio, Viviana M. Barrera, Viviana Andrea Colombo, Roxana P. Martinez, Alicia E. Gasoni, Amelia Laura Godeas, Alicia M. |
author |
Fernández Di Pardo, Agustina |
author_facet |
Fernández Di Pardo, Agustina Chiocchio, Viviana M. Barrera, Viviana Andrea Colombo, Roxana P. Martinez, Alicia E. Gasoni, Amelia Laura Godeas, Alicia M. |
author_role |
author |
author2 |
Chiocchio, Viviana M. Barrera, Viviana Andrea Colombo, Roxana P. Martinez, Alicia E. Gasoni, Amelia Laura Godeas, Alicia M. |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Mycorrhizae Rhizoctonia Orchidaceae Cordoba (Argentina) Epulorhiza ITS-rDNA Orquídeas |
topic |
Mycorrhizae Rhizoctonia Orchidaceae Cordoba (Argentina) Epulorhiza ITS-rDNA Orquídeas |
dc.description.none.fl_txt_mv |
Orchidaceae is a highly dependent group on the Rhizoctonia complex that includes Ceratorhiza, Moniliopsis, Epulorhiza and Rhizoctonia, for seed germination and the development of new orchid plants. Thus, the isolation and identification of orchid mycorrhizal fungi are important to understand the orchid-fungus relationship, which can lead to the development of efficient conservation strategies by in vivo germination of seeds from endangered orchid plants. The aim of our work was to isolate and characterize the different mycorrhizal fungi found in roots of terrestrial orchids from Córdoba (Argentina), and, to learn about the natural habit and fungal associations in the Chaco Serrano woodland pristine region. In this study, bloomed orchid root and rhizosphere soil samples were obtained in two times from Valle de Punilla during spring of 2007; samples were kept in plastic bags until processed within 48 hours, and mycorrhizal condition confirmed assessing peloton presence. A total of 23 isolates of the orchideous mycorrhizal Rhizoctonia complex were obtained. The isolates were studied based on morphological characters and ITS-rDNA sequences. Morphological characteristics as color of colonies, texture, growth rate, hyphal diameter and length and presence of sclerotia were observed on culture media. To define the number of nuclei per cell, the isolates were grown in Petri dishes containing water-agar (WA) for three days at 25°C and stained with Safranine-O solution. The mycorrhizal fungi were grouped into binucleate (MSGib, 10 isolates) and multinucleate (MSGim, 13 isolates) based on morphological characteristics of the colonies. We obtained 1The ITS1-5.8s-ITS4 region that was amplified using primers ITS1 and ITS4. Based on DNA sequencing, isolates Q23 and Q29 were found to be related to species of Ceratobasidium. Isolates Q24 and Q4 were related to the binucleated anastomosis group AG-C of Rhizoctonia sp. The rest of the isolates grouped in the Ceratobasidium clade without grouping. From our knowledge this is the first report of the association of the AG-C testers with terrestrial orchids. A high specificity was observed in the symbiotic relationship. As the mycorrhizal fungal isolates were obtained from native orchids, they could be incorporated in conservation programes of endangered orchids in Argentina. Instituto de Microbiología y Zoología Agrícola (IMYZA) Fil: Fernández Di Pardo, Agustina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina Fil: Fernández Di Pardo, Agustina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto en Biociencias Agrícolas y Ambientales (INBA). Cátedra Microbiología Agrícola y Ambiental; Argentina Fil: Fernández Di Pardo, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Chiocchio, Viviana M. Universidad de Buenos Aires. Facultad de Agronomía. Instituto en Biociencias Agrícolas y Ambientales (INBA). Cátedra Microbiología Agrícola y Ambiental; Argentina Fil: Barrera, Viviana Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina Fil: Colombo, Roxana P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina Fil: Chiocchio, Viviana M. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Martinez, Alicia E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina Fil: Gasoni, Amelia Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina Fil: Godeas, Alicia M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina |
description |
Orchidaceae is a highly dependent group on the Rhizoctonia complex that includes Ceratorhiza, Moniliopsis, Epulorhiza and Rhizoctonia, for seed germination and the development of new orchid plants. Thus, the isolation and identification of orchid mycorrhizal fungi are important to understand the orchid-fungus relationship, which can lead to the development of efficient conservation strategies by in vivo germination of seeds from endangered orchid plants. The aim of our work was to isolate and characterize the different mycorrhizal fungi found in roots of terrestrial orchids from Córdoba (Argentina), and, to learn about the natural habit and fungal associations in the Chaco Serrano woodland pristine region. In this study, bloomed orchid root and rhizosphere soil samples were obtained in two times from Valle de Punilla during spring of 2007; samples were kept in plastic bags until processed within 48 hours, and mycorrhizal condition confirmed assessing peloton presence. A total of 23 isolates of the orchideous mycorrhizal Rhizoctonia complex were obtained. The isolates were studied based on morphological characters and ITS-rDNA sequences. Morphological characteristics as color of colonies, texture, growth rate, hyphal diameter and length and presence of sclerotia were observed on culture media. To define the number of nuclei per cell, the isolates were grown in Petri dishes containing water-agar (WA) for three days at 25°C and stained with Safranine-O solution. The mycorrhizal fungi were grouped into binucleate (MSGib, 10 isolates) and multinucleate (MSGim, 13 isolates) based on morphological characteristics of the colonies. We obtained 1The ITS1-5.8s-ITS4 region that was amplified using primers ITS1 and ITS4. Based on DNA sequencing, isolates Q23 and Q29 were found to be related to species of Ceratobasidium. Isolates Q24 and Q4 were related to the binucleated anastomosis group AG-C of Rhizoctonia sp. The rest of the isolates grouped in the Ceratobasidium clade without grouping. From our knowledge this is the first report of the association of the AG-C testers with terrestrial orchids. A high specificity was observed in the symbiotic relationship. As the mycorrhizal fungal isolates were obtained from native orchids, they could be incorporated in conservation programes of endangered orchids in Argentina. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-03-01 2025-02-27T10:17:33Z 2025-02-27T10:17:33Z |
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/20.500.12123/21482 https://revistas.ucr.ac.cr/index.php/rbt/article/view/14226 0034-7744 2215-2075 https://doi.org/10.15517/rbt.v63i1.14226 |
url |
http://hdl.handle.net/20.500.12123/21482 https://revistas.ucr.ac.cr/index.php/rbt/article/view/14226 https://doi.org/10.15517/rbt.v63i1.14226 |
identifier_str_mv |
0034-7744 2215-2075 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidad de Costa Rica |
publisher.none.fl_str_mv |
Universidad de Costa Rica |
dc.source.none.fl_str_mv |
Revista de Biología Tropical 63 (1) : 275-283 (marzo 2015) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
reponame_str |
INTA Digital (INTA) |
collection |
INTA Digital (INTA) |
instname_str |
Instituto Nacional de Tecnología Agropecuaria |
repository.name.fl_str_mv |
INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria |
repository.mail.fl_str_mv |
tripaldi.nicolas@inta.gob.ar |
_version_ |
1844619201182957568 |
score |
12.559606 |