Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
DOI: | 10.25186/.v16i.1949. |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/50465 |
Resumo: | The identification of morphophysiological traits responsible for a better plant behavior when infected is useful for cultivar selection, and become crucial for breeding. We investigated the morphophysiological behavior of coffee genotypes before and after inoculation with the pathogen Hemileia vastatrix, causal agent of coffee rust. With multivariate techniques we identified the characteristics that most contribute to total genetic divergence of the genotypes. Ten genotypes of Coffea arabica from the Germplasm Bank of Coffee from Minas Gerais were sown in a nursery and then take to a greenhouse with controlled temperature and humidity. After one month of acclimatization, the artificial inoculation with the fungus H. vastatrix was carried out. The anatomical and physiological evaluations were performed 1 day before inoculation and 160 days after inoculation. When the first symptom emerged, plants were evaluated according to a descriptive scale for coffee rust. We observed significant differences in rust severity and ostiole opening between genotypes. Different groups were formed by the K-means method, based on morphophysiological characteristics. This shows that genetic variability exists between the coffee genotypes evaluated before and after inoculation with the pathogen. The most important characteristics that contributed to the total genetic divergence were xylem vessel diameter and stomatal conductance. In conclusion, inoculation with H. vastatrix caused a change in coffee genotypes based on morphophysiological characteristics. |
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Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stressCoffee - Leaf rustCoffea arabicaCoffee - Canonical variablesHemileia vastatrixCafeeiro - FerrugemCafé - Variáveis canônicasThe identification of morphophysiological traits responsible for a better plant behavior when infected is useful for cultivar selection, and become crucial for breeding. We investigated the morphophysiological behavior of coffee genotypes before and after inoculation with the pathogen Hemileia vastatrix, causal agent of coffee rust. With multivariate techniques we identified the characteristics that most contribute to total genetic divergence of the genotypes. Ten genotypes of Coffea arabica from the Germplasm Bank of Coffee from Minas Gerais were sown in a nursery and then take to a greenhouse with controlled temperature and humidity. After one month of acclimatization, the artificial inoculation with the fungus H. vastatrix was carried out. The anatomical and physiological evaluations were performed 1 day before inoculation and 160 days after inoculation. When the first symptom emerged, plants were evaluated according to a descriptive scale for coffee rust. We observed significant differences in rust severity and ostiole opening between genotypes. Different groups were formed by the K-means method, based on morphophysiological characteristics. This shows that genetic variability exists between the coffee genotypes evaluated before and after inoculation with the pathogen. The most important characteristics that contributed to the total genetic divergence were xylem vessel diameter and stomatal conductance. In conclusion, inoculation with H. vastatrix caused a change in coffee genotypes based on morphophysiological characteristics.Universidade Federal de Lavras2022-07-04T20:38:14Z2022-07-04T20:38:14Z2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfVIANA, M. T. R. et al. Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress. Coffee Science, Lavras, v. 16, e161949, 2021. DOI: 10.25186/.v16i.1949.http://repositorio.ufla.br/jspui/handle/1/50465Coffee Sciencereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessViana, Mariana Thereza RodriguesAzevedo, Harianna Paula Alves dePereira, Fernanda Aparecida CastroCarvalho, Milene Alves de FigueiredoGuimarães, Rubens Joséeng2022-07-04T20:38:14Zoai:localhost:1/50465Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2022-07-04T20:38:14Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress |
title |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress |
spellingShingle |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress Viana, Mariana Thereza Rodrigues Coffee - Leaf rust Coffea arabica Coffee - Canonical variables Hemileia vastatrix Cafeeiro - Ferrugem Café - Variáveis canônicas Viana, Mariana Thereza Rodrigues Coffee - Leaf rust Coffea arabica Coffee - Canonical variables Hemileia vastatrix Cafeeiro - Ferrugem Café - Variáveis canônicas |
title_short |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress |
title_full |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress |
title_fullStr |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress |
title_full_unstemmed |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress |
title_sort |
Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress |
author |
Viana, Mariana Thereza Rodrigues |
author_facet |
Viana, Mariana Thereza Rodrigues Viana, Mariana Thereza Rodrigues Azevedo, Harianna Paula Alves de Pereira, Fernanda Aparecida Castro Carvalho, Milene Alves de Figueiredo Guimarães, Rubens José Azevedo, Harianna Paula Alves de Pereira, Fernanda Aparecida Castro Carvalho, Milene Alves de Figueiredo Guimarães, Rubens José |
author_role |
author |
author2 |
Azevedo, Harianna Paula Alves de Pereira, Fernanda Aparecida Castro Carvalho, Milene Alves de Figueiredo Guimarães, Rubens José |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Viana, Mariana Thereza Rodrigues Azevedo, Harianna Paula Alves de Pereira, Fernanda Aparecida Castro Carvalho, Milene Alves de Figueiredo Guimarães, Rubens José |
dc.subject.por.fl_str_mv |
Coffee - Leaf rust Coffea arabica Coffee - Canonical variables Hemileia vastatrix Cafeeiro - Ferrugem Café - Variáveis canônicas |
topic |
Coffee - Leaf rust Coffea arabica Coffee - Canonical variables Hemileia vastatrix Cafeeiro - Ferrugem Café - Variáveis canônicas |
description |
The identification of morphophysiological traits responsible for a better plant behavior when infected is useful for cultivar selection, and become crucial for breeding. We investigated the morphophysiological behavior of coffee genotypes before and after inoculation with the pathogen Hemileia vastatrix, causal agent of coffee rust. With multivariate techniques we identified the characteristics that most contribute to total genetic divergence of the genotypes. Ten genotypes of Coffea arabica from the Germplasm Bank of Coffee from Minas Gerais were sown in a nursery and then take to a greenhouse with controlled temperature and humidity. After one month of acclimatization, the artificial inoculation with the fungus H. vastatrix was carried out. The anatomical and physiological evaluations were performed 1 day before inoculation and 160 days after inoculation. When the first symptom emerged, plants were evaluated according to a descriptive scale for coffee rust. We observed significant differences in rust severity and ostiole opening between genotypes. Different groups were formed by the K-means method, based on morphophysiological characteristics. This shows that genetic variability exists between the coffee genotypes evaluated before and after inoculation with the pathogen. The most important characteristics that contributed to the total genetic divergence were xylem vessel diameter and stomatal conductance. In conclusion, inoculation with H. vastatrix caused a change in coffee genotypes based on morphophysiological characteristics. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 2022-07-04T20:38:14Z 2022-07-04T20:38:14Z |
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 |
VIANA, M. T. R. et al. Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress. Coffee Science, Lavras, v. 16, e161949, 2021. DOI: 10.25186/.v16i.1949. http://repositorio.ufla.br/jspui/handle/1/50465 |
identifier_str_mv |
VIANA, M. T. R. et al. Coffee genotypes morphophysiological adaptation under coffee leaf rust biotic stress. Coffee Science, Lavras, v. 16, e161949, 2021. DOI: 10.25186/.v16i.1949. |
url |
http://repositorio.ufla.br/jspui/handle/1/50465 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Lavras |
publisher.none.fl_str_mv |
Universidade Federal de Lavras |
dc.source.none.fl_str_mv |
Coffee Science reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1822221004590546944 |
dc.identifier.doi.none.fl_str_mv |
10.25186/.v16i.1949. |