Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment

Detalhes bibliográficos
Autor(a) principal: Cambraia,Thais Lopes Leal
Data de Publicação: 2021
Outros Autores: Ribeiro,Cleberson, Castro,Laís Quintão, Freitas,Robson Dias de, Vergutz,Leonardus, Fontes,Renildes Lúcio Ferreira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ceres
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2021000400319
Resumo: ABSTRACT Understanding the kinetics of Zn absorption by roots and its effect on morphology of this organ is relevant for improving crop management, but still poorly studied for common beans. Therefore, an experiment was conducted in a hydroponic system with five initial concentrations of Zn (CZnI): 0.0; 1.0; 4.0; 16.0 and 48.0 µmol L-1. The experiment was installed with plants at V3 stage of development and aliquots of the solution collected over 24 h. The maximum absorption rate (Vmax), Michaelis-Menten constant (Km) and the absorption power (α) increased as a function of CZnI. The minimum concentration of Zn estimated for its absorption (Cmin) was at 0.0028 mg L-1. The influx of Zn (Imax) was higher in higher CZnI, 16,0 µmol L-1. Root length, root volume, root Zn content and Zn absorption efficiency increased with the increase of CZnI. Therefore, the increase of CZnI positively influenced kinetic parameters of root Zn absorption and common bean root morphology, characteristics that favor Zn absorption by roots and improves overall plant nutrition, favoring agronomical biofortification practices for Zn and other nutrients.
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spelling Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environmentroot Zn inflowabsorption efficiencykinetic parametersVmaxCminKmABSTRACT Understanding the kinetics of Zn absorption by roots and its effect on morphology of this organ is relevant for improving crop management, but still poorly studied for common beans. Therefore, an experiment was conducted in a hydroponic system with five initial concentrations of Zn (CZnI): 0.0; 1.0; 4.0; 16.0 and 48.0 µmol L-1. The experiment was installed with plants at V3 stage of development and aliquots of the solution collected over 24 h. The maximum absorption rate (Vmax), Michaelis-Menten constant (Km) and the absorption power (α) increased as a function of CZnI. The minimum concentration of Zn estimated for its absorption (Cmin) was at 0.0028 mg L-1. The influx of Zn (Imax) was higher in higher CZnI, 16,0 µmol L-1. Root length, root volume, root Zn content and Zn absorption efficiency increased with the increase of CZnI. Therefore, the increase of CZnI positively influenced kinetic parameters of root Zn absorption and common bean root morphology, characteristics that favor Zn absorption by roots and improves overall plant nutrition, favoring agronomical biofortification practices for Zn and other nutrients.Universidade Federal de Viçosa2021-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2021000400319Revista Ceres v.68 n.4 2021reponame:Revista Ceresinstname:Universidade Federal de Viçosa (UFV)instacron:UFV10.1590/0034-737x202168040009info:eu-repo/semantics/openAccessCambraia,Thais Lopes LealRibeiro,ClebersonCastro,Laís QuintãoFreitas,Robson Dias deVergutz,LeonardusFontes,Renildes Lúcio Ferreiraeng2021-08-03T00:00:00ZRevista
dc.title.none.fl_str_mv Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
title Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
spellingShingle Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
Cambraia,Thais Lopes Leal
root Zn inflow
absorption efficiency
kinetic parameters
Vmax
Cmin
Km
title_short Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
title_full Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
title_fullStr Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
title_full_unstemmed Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
title_sort Root morphology and kinetics of Zn absorption by roots of common bean influenced by Zn status of the root environment
author Cambraia,Thais Lopes Leal
author_facet Cambraia,Thais Lopes Leal
Ribeiro,Cleberson
Castro,Laís Quintão
Freitas,Robson Dias de
Vergutz,Leonardus
Fontes,Renildes Lúcio Ferreira
author_role author
author2 Ribeiro,Cleberson
Castro,Laís Quintão
Freitas,Robson Dias de
Vergutz,Leonardus
Fontes,Renildes Lúcio Ferreira
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Cambraia,Thais Lopes Leal
Ribeiro,Cleberson
Castro,Laís Quintão
Freitas,Robson Dias de
Vergutz,Leonardus
Fontes,Renildes Lúcio Ferreira
dc.subject.por.fl_str_mv root Zn inflow
absorption efficiency
kinetic parameters
Vmax
Cmin
Km
topic root Zn inflow
absorption efficiency
kinetic parameters
Vmax
Cmin
Km
dc.description.none.fl_txt_mv ABSTRACT Understanding the kinetics of Zn absorption by roots and its effect on morphology of this organ is relevant for improving crop management, but still poorly studied for common beans. Therefore, an experiment was conducted in a hydroponic system with five initial concentrations of Zn (CZnI): 0.0; 1.0; 4.0; 16.0 and 48.0 µmol L-1. The experiment was installed with plants at V3 stage of development and aliquots of the solution collected over 24 h. The maximum absorption rate (Vmax), Michaelis-Menten constant (Km) and the absorption power (α) increased as a function of CZnI. The minimum concentration of Zn estimated for its absorption (Cmin) was at 0.0028 mg L-1. The influx of Zn (Imax) was higher in higher CZnI, 16,0 µmol L-1. Root length, root volume, root Zn content and Zn absorption efficiency increased with the increase of CZnI. Therefore, the increase of CZnI positively influenced kinetic parameters of root Zn absorption and common bean root morphology, characteristics that favor Zn absorption by roots and improves overall plant nutrition, favoring agronomical biofortification practices for Zn and other nutrients.
description ABSTRACT Understanding the kinetics of Zn absorption by roots and its effect on morphology of this organ is relevant for improving crop management, but still poorly studied for common beans. Therefore, an experiment was conducted in a hydroponic system with five initial concentrations of Zn (CZnI): 0.0; 1.0; 4.0; 16.0 and 48.0 µmol L-1. The experiment was installed with plants at V3 stage of development and aliquots of the solution collected over 24 h. The maximum absorption rate (Vmax), Michaelis-Menten constant (Km) and the absorption power (α) increased as a function of CZnI. The minimum concentration of Zn estimated for its absorption (Cmin) was at 0.0028 mg L-1. The influx of Zn (Imax) was higher in higher CZnI, 16,0 µmol L-1. Root length, root volume, root Zn content and Zn absorption efficiency increased with the increase of CZnI. Therefore, the increase of CZnI positively influenced kinetic parameters of root Zn absorption and common bean root morphology, characteristics that favor Zn absorption by roots and improves overall plant nutrition, favoring agronomical biofortification practices for Zn and other nutrients.
publishDate 2021
dc.date.none.fl_str_mv 2021-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2021000400319
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2021000400319
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0034-737x202168040009
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa
publisher.none.fl_str_mv Universidade Federal de Viçosa
dc.source.none.fl_str_mv Revista Ceres v.68 n.4 2021
reponame:Revista Ceres
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str Revista Ceres
collection Revista Ceres
repository.name.fl_str_mv
repository.mail.fl_str_mv
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