Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction

Autores
Becker, Rafael; Farias Singer, Rosana; Gurvich, Diego Ezequiel; Pittella, Renan; Calderon Quispe, Fernando H.; de Moraes Brandalise, Júlia; Singer, Rodrigo Bustos
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
All 32 Brazilian species of Parodia Speg (Cactaceae) occurring in Rio Grande do Sul Stateare considered threatened, according to the IUCN criteria. Until 2021, Parodia rechensis (CR) wasknown by only two small populations. However, a new population with over 400 individuals wasdiscovered in 2021, prompting the study of its reproductive biology as a way to promote its conservation. Anthesis, breeding system, and natural pollination were studied in the field. The breeding system was studied by applying controlled pollination treatments to plants excluded from pollinators (bagged). Germination features were studied at the Seed Bank of the Porto Alegre BotanicalGarden under controlled temperatures (20, 25, and 30 °C). The anthesis is diurnal and lasts for upto four days. The flowers offer pollen as the sole resource to the pollinators. The study species isunable to set fruit and seed without the agency of pollinators and has self-incompatible (unable toset fruit and seeds when pollinated with pollen of the same individual) characteristics that can considerably restrict its reproduction. Native bees of Halictidae and Apidae (Hymenoptera) are themain pollinators, with a smaller contribution of Melyridae (Coleoptera) and Syrphidae (Diptera).Natural fruit set is moderate (≤64%, per individual), but the species presents vegetative growth,producing several branches from the mother plant. Seeds showed the optimum germination rate at20 °C and an inhibition of 75% in germinability at 30 °C. Our findings suggest the need to managethe species’ habitat to guarantee the permanency of the plants and healthy populations of pollinators as well. Our findings raise concerns about the germination and establishment of new individuals in the context of rising temperatures caused by climate change. Suggestions for the possible management of the extant populations are made.
Fil: Becker, Rafael. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Farias Singer, Rosana. Jardín Botanico Porto Alegre; Brasil
Fil: Gurvich, Diego Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Pittella, Renan. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Calderon Quispe, Fernando H.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: de Moraes Brandalise, Júlia. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Singer, Rodrigo Bustos. Universidade Federal do Rio Grande do Sul; Brasil
Materia
cactaceae
especies endémicas
biología reproductiva
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/265518

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network_name_str CONICET Digital (CONICET)
spelling Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its ExtinctionBecker, RafaelFarias Singer, RosanaGurvich, Diego EzequielPittella, RenanCalderon Quispe, Fernando H.de Moraes Brandalise, JúliaSinger, Rodrigo Bustoscactaceaeespecies endémicasbiología reproductivahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1All 32 Brazilian species of Parodia Speg (Cactaceae) occurring in Rio Grande do Sul Stateare considered threatened, according to the IUCN criteria. Until 2021, Parodia rechensis (CR) wasknown by only two small populations. However, a new population with over 400 individuals wasdiscovered in 2021, prompting the study of its reproductive biology as a way to promote its conservation. Anthesis, breeding system, and natural pollination were studied in the field. The breeding system was studied by applying controlled pollination treatments to plants excluded from pollinators (bagged). Germination features were studied at the Seed Bank of the Porto Alegre BotanicalGarden under controlled temperatures (20, 25, and 30 °C). The anthesis is diurnal and lasts for upto four days. The flowers offer pollen as the sole resource to the pollinators. The study species isunable to set fruit and seed without the agency of pollinators and has self-incompatible (unable toset fruit and seeds when pollinated with pollen of the same individual) characteristics that can considerably restrict its reproduction. Native bees of Halictidae and Apidae (Hymenoptera) are themain pollinators, with a smaller contribution of Melyridae (Coleoptera) and Syrphidae (Diptera).Natural fruit set is moderate (≤64%, per individual), but the species presents vegetative growth,producing several branches from the mother plant. Seeds showed the optimum germination rate at20 °C and an inhibition of 75% in germinability at 30 °C. Our findings suggest the need to managethe species’ habitat to guarantee the permanency of the plants and healthy populations of pollinators as well. Our findings raise concerns about the germination and establishment of new individuals in the context of rising temperatures caused by climate change. Suggestions for the possible management of the extant populations are made.Fil: Becker, Rafael. Universidade Federal do Rio Grande do Sul; BrasilFil: Farias Singer, Rosana. Jardín Botanico Porto Alegre; BrasilFil: Gurvich, Diego Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Pittella, Renan. Universidade Federal do Rio Grande do Sul; BrasilFil: Calderon Quispe, Fernando H.. Universidade Federal do Rio Grande do Sul; BrasilFil: de Moraes Brandalise, Júlia. Universidade Federal do Rio Grande do Sul; BrasilFil: Singer, Rodrigo Bustos. Universidade Federal do Rio Grande do Sul; BrasilMDPI2024-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/265518Becker, Rafael; Farias Singer, Rosana; Gurvich, Diego Ezequiel; Pittella, Renan; Calderon Quispe, Fernando H.; et al.; Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction; MDPI; Plants; 13; 20; 10-2024; 1-142223-7747CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2223-7747/13/20/2890info:eu-repo/semantics/altIdentifier/doi/10.3390/plants13202890info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:15:06Zoai:ri.conicet.gov.ar:11336/265518instacron: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 10:15:07.233CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction
title Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction
spellingShingle Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction
Becker, Rafael
cactaceae
especies endémicas
biología reproductiva
title_short Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction
title_full Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction
title_fullStr Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction
title_full_unstemmed Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction
title_sort Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction
dc.creator.none.fl_str_mv Becker, Rafael
Farias Singer, Rosana
Gurvich, Diego Ezequiel
Pittella, Renan
Calderon Quispe, Fernando H.
de Moraes Brandalise, Júlia
Singer, Rodrigo Bustos
author Becker, Rafael
author_facet Becker, Rafael
Farias Singer, Rosana
Gurvich, Diego Ezequiel
Pittella, Renan
Calderon Quispe, Fernando H.
de Moraes Brandalise, Júlia
Singer, Rodrigo Bustos
author_role author
author2 Farias Singer, Rosana
Gurvich, Diego Ezequiel
Pittella, Renan
Calderon Quispe, Fernando H.
de Moraes Brandalise, Júlia
Singer, Rodrigo Bustos
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv cactaceae
especies endémicas
biología reproductiva
topic cactaceae
especies endémicas
biología reproductiva
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv All 32 Brazilian species of Parodia Speg (Cactaceae) occurring in Rio Grande do Sul Stateare considered threatened, according to the IUCN criteria. Until 2021, Parodia rechensis (CR) wasknown by only two small populations. However, a new population with over 400 individuals wasdiscovered in 2021, prompting the study of its reproductive biology as a way to promote its conservation. Anthesis, breeding system, and natural pollination were studied in the field. The breeding system was studied by applying controlled pollination treatments to plants excluded from pollinators (bagged). Germination features were studied at the Seed Bank of the Porto Alegre BotanicalGarden under controlled temperatures (20, 25, and 30 °C). The anthesis is diurnal and lasts for upto four days. The flowers offer pollen as the sole resource to the pollinators. The study species isunable to set fruit and seed without the agency of pollinators and has self-incompatible (unable toset fruit and seeds when pollinated with pollen of the same individual) characteristics that can considerably restrict its reproduction. Native bees of Halictidae and Apidae (Hymenoptera) are themain pollinators, with a smaller contribution of Melyridae (Coleoptera) and Syrphidae (Diptera).Natural fruit set is moderate (≤64%, per individual), but the species presents vegetative growth,producing several branches from the mother plant. Seeds showed the optimum germination rate at20 °C and an inhibition of 75% in germinability at 30 °C. Our findings suggest the need to managethe species’ habitat to guarantee the permanency of the plants and healthy populations of pollinators as well. Our findings raise concerns about the germination and establishment of new individuals in the context of rising temperatures caused by climate change. Suggestions for the possible management of the extant populations are made.
Fil: Becker, Rafael. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Farias Singer, Rosana. Jardín Botanico Porto Alegre; Brasil
Fil: Gurvich, Diego Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Pittella, Renan. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Calderon Quispe, Fernando H.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: de Moraes Brandalise, Júlia. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Singer, Rodrigo Bustos. Universidade Federal do Rio Grande do Sul; Brasil
description All 32 Brazilian species of Parodia Speg (Cactaceae) occurring in Rio Grande do Sul Stateare considered threatened, according to the IUCN criteria. Until 2021, Parodia rechensis (CR) wasknown by only two small populations. However, a new population with over 400 individuals wasdiscovered in 2021, prompting the study of its reproductive biology as a way to promote its conservation. Anthesis, breeding system, and natural pollination were studied in the field. The breeding system was studied by applying controlled pollination treatments to plants excluded from pollinators (bagged). Germination features were studied at the Seed Bank of the Porto Alegre BotanicalGarden under controlled temperatures (20, 25, and 30 °C). The anthesis is diurnal and lasts for upto four days. The flowers offer pollen as the sole resource to the pollinators. The study species isunable to set fruit and seed without the agency of pollinators and has self-incompatible (unable toset fruit and seeds when pollinated with pollen of the same individual) characteristics that can considerably restrict its reproduction. Native bees of Halictidae and Apidae (Hymenoptera) are themain pollinators, with a smaller contribution of Melyridae (Coleoptera) and Syrphidae (Diptera).Natural fruit set is moderate (≤64%, per individual), but the species presents vegetative growth,producing several branches from the mother plant. Seeds showed the optimum germination rate at20 °C and an inhibition of 75% in germinability at 30 °C. Our findings suggest the need to managethe species’ habitat to guarantee the permanency of the plants and healthy populations of pollinators as well. Our findings raise concerns about the germination and establishment of new individuals in the context of rising temperatures caused by climate change. Suggestions for the possible management of the extant populations are made.
publishDate 2024
dc.date.none.fl_str_mv 2024-10
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/11336/265518
Becker, Rafael; Farias Singer, Rosana; Gurvich, Diego Ezequiel; Pittella, Renan; Calderon Quispe, Fernando H.; et al.; Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction; MDPI; Plants; 13; 20; 10-2024; 1-14
2223-7747
CONICET Digital
CONICET
url http://hdl.handle.net/11336/265518
identifier_str_mv Becker, Rafael; Farias Singer, Rosana; Gurvich, Diego Ezequiel; Pittella, Renan; Calderon Quispe, Fernando H.; et al.; Reproductive Biology in the Possible Last Healthy Population of Parodia rechensis (Cactaceae): Perspectives to Avoid Its Extinction; MDPI; Plants; 13; 20; 10-2024; 1-14
2223-7747
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.mdpi.com/2223-7747/13/20/2890
info:eu-repo/semantics/altIdentifier/doi/10.3390/plants13202890
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
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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