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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/265518
Ver los metadatos del registro completo
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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 |
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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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1844614085075795968 |
score |
13.070432 |