Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions

Detalhes bibliográficos
Autor(a) principal: Mereb, Emiliana Licio
Data de Publicação: 2020
Outros Autores: Alves, Frederico Rocha Rodrigues, Rezende, Maria Helena, De Oliveira, Eliaby Jose, Carvalho, Rogerio Falleiros [UNESP], De Melo, Hyrandir Cabral
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s40415-020-00584-w
http://hdl.handle.net/11449/196697
Resumo: Phytochromes (PHYs) have long been associated with classic photomorphogenic responses and recently implied with the regulation of plant productivity. We aimed to characterize these links in an important agronomic crop such as tomato (cv. Moneymaker) by evaluating biomass partitioning and morphophysiological parameters related to productivity under distinct light conditions in phyA, phyB1 and phyB2 tomato mutants. Under sun, PHY mutants presented lower leaf biomass during the vegetative phase the same way as the wild type (WT) under shading treatment. However, no difference regarding fruit biomass ratio (harvest index) was registered between WT and PHY mutants. phyA was the shortest genotype with lesser lateral branches and smaller xylem vessels and alongside phyB1, presented lesser leaf area. Net photosynthesis rate and photosystem II maximum potential quantum efficiency were not affected by phytochrome loss under sun condition. Nevertheless, PHY mutants showed lesser chlorophyll a content and stomata conductance and transpiration rates. Together, our data reveal that despite some morphophysiological and developmental impairments and the differences in biomass accumulation associated with the distinct PHYs under distinct light conditions, the plant harvest index is not affected by individual PHY losses under sun condition.
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spelling Morphophysiological responses of tomato phytochrome mutants under sun and shade conditionsPhotomorphogenesisPhotosynthate partitioningPhotosynthesisSolanum lycopersicumPhytochromes (PHYs) have long been associated with classic photomorphogenic responses and recently implied with the regulation of plant productivity. We aimed to characterize these links in an important agronomic crop such as tomato (cv. Moneymaker) by evaluating biomass partitioning and morphophysiological parameters related to productivity under distinct light conditions in phyA, phyB1 and phyB2 tomato mutants. Under sun, PHY mutants presented lower leaf biomass during the vegetative phase the same way as the wild type (WT) under shading treatment. However, no difference regarding fruit biomass ratio (harvest index) was registered between WT and PHY mutants. phyA was the shortest genotype with lesser lateral branches and smaller xylem vessels and alongside phyB1, presented lesser leaf area. Net photosynthesis rate and photosystem II maximum potential quantum efficiency were not affected by phytochrome loss under sun condition. Nevertheless, PHY mutants showed lesser chlorophyll a content and stomata conductance and transpiration rates. Together, our data reveal that despite some morphophysiological and developmental impairments and the differences in biomass accumulation associated with the distinct PHYs under distinct light conditions, the plant harvest index is not affected by individual PHY losses under sun condition.Univ Fed Goias, Dept Bot, Lab Fisiol Vegetal, Inst Ciencias Biol, Ave Esperanca S-N, BR-74690900 Goiania, Go, BrazilUniv Fed Goias, Inst Ciencias Biol, Lab Anat Vegetal, Dept Bot, Ave Esperanca S-N, BR-74690900 Goiania, Go, BrazilInst Fed Goiano, Lab Fisiol Vegetal, Rodovia GO-154,Km 03,S-N Caixa Postal 51, BR-76300000 Ceres, Go, BrazilUniv Estadual Paulista, Dept Biol Aplicada Agr, Fac Ciencias Agr & Vet, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, BrazilUniv Estadual Paulista, Dept Biol Aplicada Agr, Fac Ciencias Agr & Vet, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, BrazilSoc Botanica Sao PauloUniversidade Federal de Goiás (UFG)Inst Fed GoianoUniversidade Estadual Paulista (Unesp)Mereb, Emiliana LicioAlves, Frederico Rocha RodriguesRezende, Maria HelenaDe Oliveira, Eliaby JoseCarvalho, Rogerio Falleiros [UNESP]De Melo, Hyrandir Cabral2020-12-10T19:53:22Z2020-12-10T19:53:22Z2020-02-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article45-54http://dx.doi.org/10.1007/s40415-020-00584-wBrazilian Journal Of Botany. Sao Paulo: Soc Botanica Sao Paulo, v. 43, n. 1, p. 45-54, 2020.0100-8404http://hdl.handle.net/11449/19669710.1007/s40415-020-00584-wWOS:000520077500001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal Of Botanyinfo:eu-repo/semantics/openAccess2024-06-06T13:04:56Zoai:repositorio.unesp.br:11449/196697Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:18:20.756773Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions
title Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions
spellingShingle Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions
Mereb, Emiliana Licio
Photomorphogenesis
Photosynthate partitioning
Photosynthesis
Solanum lycopersicum
title_short Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions
title_full Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions
title_fullStr Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions
title_full_unstemmed Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions
title_sort Morphophysiological responses of tomato phytochrome mutants under sun and shade conditions
author Mereb, Emiliana Licio
author_facet Mereb, Emiliana Licio
Alves, Frederico Rocha Rodrigues
Rezende, Maria Helena
De Oliveira, Eliaby Jose
Carvalho, Rogerio Falleiros [UNESP]
De Melo, Hyrandir Cabral
author_role author
author2 Alves, Frederico Rocha Rodrigues
Rezende, Maria Helena
De Oliveira, Eliaby Jose
Carvalho, Rogerio Falleiros [UNESP]
De Melo, Hyrandir Cabral
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de Goiás (UFG)
Inst Fed Goiano
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Mereb, Emiliana Licio
Alves, Frederico Rocha Rodrigues
Rezende, Maria Helena
De Oliveira, Eliaby Jose
Carvalho, Rogerio Falleiros [UNESP]
De Melo, Hyrandir Cabral
dc.subject.por.fl_str_mv Photomorphogenesis
Photosynthate partitioning
Photosynthesis
Solanum lycopersicum
topic Photomorphogenesis
Photosynthate partitioning
Photosynthesis
Solanum lycopersicum
description Phytochromes (PHYs) have long been associated with classic photomorphogenic responses and recently implied with the regulation of plant productivity. We aimed to characterize these links in an important agronomic crop such as tomato (cv. Moneymaker) by evaluating biomass partitioning and morphophysiological parameters related to productivity under distinct light conditions in phyA, phyB1 and phyB2 tomato mutants. Under sun, PHY mutants presented lower leaf biomass during the vegetative phase the same way as the wild type (WT) under shading treatment. However, no difference regarding fruit biomass ratio (harvest index) was registered between WT and PHY mutants. phyA was the shortest genotype with lesser lateral branches and smaller xylem vessels and alongside phyB1, presented lesser leaf area. Net photosynthesis rate and photosystem II maximum potential quantum efficiency were not affected by phytochrome loss under sun condition. Nevertheless, PHY mutants showed lesser chlorophyll a content and stomata conductance and transpiration rates. Together, our data reveal that despite some morphophysiological and developmental impairments and the differences in biomass accumulation associated with the distinct PHYs under distinct light conditions, the plant harvest index is not affected by individual PHY losses under sun condition.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-10T19:53:22Z
2020-12-10T19:53:22Z
2020-02-08
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/10.1007/s40415-020-00584-w
Brazilian Journal Of Botany. Sao Paulo: Soc Botanica Sao Paulo, v. 43, n. 1, p. 45-54, 2020.
0100-8404
http://hdl.handle.net/11449/196697
10.1007/s40415-020-00584-w
WOS:000520077500001
url http://dx.doi.org/10.1007/s40415-020-00584-w
http://hdl.handle.net/11449/196697
identifier_str_mv Brazilian Journal Of Botany. Sao Paulo: Soc Botanica Sao Paulo, v. 43, n. 1, p. 45-54, 2020.
0100-8404
10.1007/s40415-020-00584-w
WOS:000520077500001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal Of Botany
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 45-54
dc.publisher.none.fl_str_mv Soc Botanica Sao Paulo
publisher.none.fl_str_mv Soc Botanica Sao Paulo
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_ 1808128918542090240