Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1071/BT16177 http://hdl.handle.net/11449/165493 |
Resumo: | Mistletoes are parasitic plants that penetrate the host branches through a modified root and connect to their xylem to acquire nutrients and water. Under mistletoe infection, resources that would otherwise be used by the host are stolen by the parasite. Our aim was to compare leaf morpho-physiological traits between healthy uninfected branches and mistletoe-infected branches of a Neotropical tree species (Handroanthus chrysotrichus (Mart. ex DC.) Mattos - Bignoniaceae). We also investigated differences between mistletoe and host leaf traits. Morphological (petiole length and thickness, leaf area and thickness, and specific leaf area) and physiological leaf traits (pre-dawn and midday water potential) were measured in 10 individuals infected with the mistletoe Phoradendron affine (Pohl ex DC.) Engl. & K.Krause (Santalaceae). Mistletoes showed smaller and thicker leaves with lower pre-dawn and midday water potential, suggesting that mistletoes are more profligate water users than the host. Host leaves from infected branches were scleromorphic and showed stronger water-use control (less negative water potential) than host leaves from uninfected branches. Our results indicated that leaves from infected branches shifted to a more conservative resource-use strategy as a response to a water and nutrient imbalance caused by mistletoe infection. |
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spelling |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree specieshemiparasiteleaf morphologyleaf traitsleaf water potentialresource useMistletoes are parasitic plants that penetrate the host branches through a modified root and connect to their xylem to acquire nutrients and water. Under mistletoe infection, resources that would otherwise be used by the host are stolen by the parasite. Our aim was to compare leaf morpho-physiological traits between healthy uninfected branches and mistletoe-infected branches of a Neotropical tree species (Handroanthus chrysotrichus (Mart. ex DC.) Mattos - Bignoniaceae). We also investigated differences between mistletoe and host leaf traits. Morphological (petiole length and thickness, leaf area and thickness, and specific leaf area) and physiological leaf traits (pre-dawn and midday water potential) were measured in 10 individuals infected with the mistletoe Phoradendron affine (Pohl ex DC.) Engl. & K.Krause (Santalaceae). Mistletoes showed smaller and thicker leaves with lower pre-dawn and midday water potential, suggesting that mistletoes are more profligate water users than the host. Host leaves from infected branches were scleromorphic and showed stronger water-use control (less negative water potential) than host leaves from uninfected branches. Our results indicated that leaves from infected branches shifted to a more conservative resource-use strategy as a response to a water and nutrient imbalance caused by mistletoe infection.Pro-Reitoria de Pesquisa (PROPE-UNESP)Univ Brasilia, Inst Ciencias Biol, Dept Ecol, Caixa Postal 04457, BR-70904970 Brasilia, DF, BrazilUniv Estadual Paulista, Dept Biol, Fac Ciencias Agr & Vet, Via Acesso Prof Paulo Donatto Castellane S-N, BR-14884900 Jaboticabal, SP, BrazilUniv Estadual Paulista, Dept Biol, Fac Ciencias Agr & Vet, Via Acesso Prof Paulo Donatto Castellane S-N, BR-14884900 Jaboticabal, SP, BrazilPro-Reitoria de Pesquisa (PROPE-UNESP): PIBIC/UNESP/PROPE-33198Csiro PublishingUniversidade de Brasília (UnB)Universidade Estadual Paulista (Unesp)Scalon, Marina CorreaReis, Sabrina Alves dos [UNESP]Rossatto, Davi Rodrigo [UNESP]2018-11-28T04:17:17Z2018-11-28T04:17:17Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article31-37application/pdfhttp://dx.doi.org/10.1071/BT16177Australian Journal Of Botany. Clayton: Csiro Publishing, v. 65, n. 1, p. 31-37, 2017.0067-1924http://hdl.handle.net/11449/16549310.1071/BT16177WOS:000395575500004WOS000395575500004.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAustralian Journal Of Botany0,393info:eu-repo/semantics/openAccess2024-06-06T13:04:57Zoai:repositorio.unesp.br:11449/165493Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-06T13:04:57Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species |
title |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species |
spellingShingle |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species Scalon, Marina Correa hemiparasite leaf morphology leaf traits leaf water potential resource use |
title_short |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species |
title_full |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species |
title_fullStr |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species |
title_full_unstemmed |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species |
title_sort |
Shifting from acquisitive to conservative: the effects of Phoradendron affine (Santalaceae) infection in leaf morpho-physiological traits of a Neotropical tree species |
author |
Scalon, Marina Correa |
author_facet |
Scalon, Marina Correa Reis, Sabrina Alves dos [UNESP] Rossatto, Davi Rodrigo [UNESP] |
author_role |
author |
author2 |
Reis, Sabrina Alves dos [UNESP] Rossatto, Davi Rodrigo [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade de Brasília (UnB) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Scalon, Marina Correa Reis, Sabrina Alves dos [UNESP] Rossatto, Davi Rodrigo [UNESP] |
dc.subject.por.fl_str_mv |
hemiparasite leaf morphology leaf traits leaf water potential resource use |
topic |
hemiparasite leaf morphology leaf traits leaf water potential resource use |
description |
Mistletoes are parasitic plants that penetrate the host branches through a modified root and connect to their xylem to acquire nutrients and water. Under mistletoe infection, resources that would otherwise be used by the host are stolen by the parasite. Our aim was to compare leaf morpho-physiological traits between healthy uninfected branches and mistletoe-infected branches of a Neotropical tree species (Handroanthus chrysotrichus (Mart. ex DC.) Mattos - Bignoniaceae). We also investigated differences between mistletoe and host leaf traits. Morphological (petiole length and thickness, leaf area and thickness, and specific leaf area) and physiological leaf traits (pre-dawn and midday water potential) were measured in 10 individuals infected with the mistletoe Phoradendron affine (Pohl ex DC.) Engl. & K.Krause (Santalaceae). Mistletoes showed smaller and thicker leaves with lower pre-dawn and midday water potential, suggesting that mistletoes are more profligate water users than the host. Host leaves from infected branches were scleromorphic and showed stronger water-use control (less negative water potential) than host leaves from uninfected branches. Our results indicated that leaves from infected branches shifted to a more conservative resource-use strategy as a response to a water and nutrient imbalance caused by mistletoe infection. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-11-28T04:17:17Z 2018-11-28T04:17:17Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1071/BT16177 Australian Journal Of Botany. Clayton: Csiro Publishing, v. 65, n. 1, p. 31-37, 2017. 0067-1924 http://hdl.handle.net/11449/165493 10.1071/BT16177 WOS:000395575500004 WOS000395575500004.pdf |
url |
http://dx.doi.org/10.1071/BT16177 http://hdl.handle.net/11449/165493 |
identifier_str_mv |
Australian Journal Of Botany. Clayton: Csiro Publishing, v. 65, n. 1, p. 31-37, 2017. 0067-1924 10.1071/BT16177 WOS:000395575500004 WOS000395575500004.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Australian Journal Of Botany 0,393 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
31-37 application/pdf |
dc.publisher.none.fl_str_mv |
Csiro Publishing |
publisher.none.fl_str_mv |
Csiro Publishing |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045428917174272 |