Leaf anatomy characterization of Coffea arabica plants at different seasonal periods
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Biotemas (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n4p1 |
Resumo: | Drought is among the hindering factors for coffee plant growth and yield. This study aimed to analyze the anatomy of leaves grown during the rainy and dry seasons in nine Coffea arabica L. plants, previously described as tolerant or sensitive to water deficit, in order to identify structural features of drought tolerance. We measured the size and density of stomata and epidermal cells, the thickness of epidermis and mesophyll, the diameter of petiole and midrib, the thickness of phloem and xylem in the midrib and petiole, and the diameter and frequency of elements of xylem vessels. Differences observed between the leaf structure of coffee plants evaluated and the leaf growth conditions (rainy and dry seasons) indicated that there is a favorable anatomical plasticity regarding drought conditions. Thicker palisade parenchyma and total limbo, larger radii of phloem and xylem in the petiole and midrib were considered as favorable structural features to cope with water scarcity and they could be used as criteria to select drought-resistant cultivars. The following coffee plants were considered as more adapted to drought: Geisha, Semperlorens, BA 10, IAC H 8105-7, IAC H 8421-2, and the cultivar Catuaí Vermelho IAC 81. |
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Leaf anatomy characterization of Coffea arabica plants at different seasonal periodsCaracterização da anatomia foliar de cafeeiros arábica em diferentes períodos sazonaisDrought is among the hindering factors for coffee plant growth and yield. This study aimed to analyze the anatomy of leaves grown during the rainy and dry seasons in nine Coffea arabica L. plants, previously described as tolerant or sensitive to water deficit, in order to identify structural features of drought tolerance. We measured the size and density of stomata and epidermal cells, the thickness of epidermis and mesophyll, the diameter of petiole and midrib, the thickness of phloem and xylem in the midrib and petiole, and the diameter and frequency of elements of xylem vessels. Differences observed between the leaf structure of coffee plants evaluated and the leaf growth conditions (rainy and dry seasons) indicated that there is a favorable anatomical plasticity regarding drought conditions. Thicker palisade parenchyma and total limbo, larger radii of phloem and xylem in the petiole and midrib were considered as favorable structural features to cope with water scarcity and they could be used as criteria to select drought-resistant cultivars. The following coffee plants were considered as more adapted to drought: Geisha, Semperlorens, BA 10, IAC H 8105-7, IAC H 8421-2, and the cultivar Catuaí Vermelho IAC 81. A seca é um dos fatores que limitam o desenvolvimento e a produtividade do cafeeiro. O objetivo deste estudo foi analisar a anatomia de folhas desenvolvidas nos períodos chuvoso e seco, em nove cafeeiros de Coffea arabica L., descritos anteriormente como tolerantes ou sensíveis a déficit hídrico, para identificar caracteres estruturais de tolerância à seca. Foram mensurados o tamanho e a densidade de estômatos e células epidérmicas, a espessura das epidermes e do mesofilo, o diâmetro do pecíolo e da nervura principal, a espessura do floema e xilema na nervura principal e no pecíolo e o diâmetro e a frequência de elementos de vasos do xilema. Diferenças observadas entre a estrutura foliar dos cafeeiros avaliados e as condições de desenvolvimento da folha (períodos chuvoso e seco) indicaram que há uma plasticidade anatômica favorável em relação às condições de seca. Espessuras maiores do parênquima paliçádico e do limbo total e raios maiores do floema e xilema no pecíolo e na nervura principal foram considerados características estruturais favoráveis para suportar a escassez de água e estas poderiam ser utilizadas como critérios para selecionar cultivares tolerantes à seca. Foram considerados mais adaptados à seca os seguintes cafeeiros: Geisha, Semperflorens, BA10, IAC H 8105-7, IAC H 8421-2 e a cultivar Catuaí Vermelho IAC 81.Universidade Federal de Santa Catarina2014-08-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n4p110.5007/2175-7925.2014v27n4p1Biotemas; v. 27 n. 4 (2014); 1-102175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n4p1/28013Copyright (c) 2014 Rachel Benetti Queiroz-Voltan, Carla Fernanda Nardin, Luiz Carlos Fazuoli, Masako Toma Braghiniinfo:eu-repo/semantics/openAccessQueiroz-Voltan, Rachel BenettiNardin, Carla FernandaFazuoli, Luiz CarlosBraghini, Masako Toma2017-10-19T17:37:31Zoai:periodicos.ufsc.br:article/32525Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2017-10-19T17:37:31Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Leaf anatomy characterization of Coffea arabica plants at different seasonal periods Caracterização da anatomia foliar de cafeeiros arábica em diferentes períodos sazonais |
title |
Leaf anatomy characterization of Coffea arabica plants at different seasonal periods |
spellingShingle |
Leaf anatomy characterization of Coffea arabica plants at different seasonal periods Queiroz-Voltan, Rachel Benetti |
title_short |
Leaf anatomy characterization of Coffea arabica plants at different seasonal periods |
title_full |
Leaf anatomy characterization of Coffea arabica plants at different seasonal periods |
title_fullStr |
Leaf anatomy characterization of Coffea arabica plants at different seasonal periods |
title_full_unstemmed |
Leaf anatomy characterization of Coffea arabica plants at different seasonal periods |
title_sort |
Leaf anatomy characterization of Coffea arabica plants at different seasonal periods |
author |
Queiroz-Voltan, Rachel Benetti |
author_facet |
Queiroz-Voltan, Rachel Benetti Nardin, Carla Fernanda Fazuoli, Luiz Carlos Braghini, Masako Toma |
author_role |
author |
author2 |
Nardin, Carla Fernanda Fazuoli, Luiz Carlos Braghini, Masako Toma |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Queiroz-Voltan, Rachel Benetti Nardin, Carla Fernanda Fazuoli, Luiz Carlos Braghini, Masako Toma |
description |
Drought is among the hindering factors for coffee plant growth and yield. This study aimed to analyze the anatomy of leaves grown during the rainy and dry seasons in nine Coffea arabica L. plants, previously described as tolerant or sensitive to water deficit, in order to identify structural features of drought tolerance. We measured the size and density of stomata and epidermal cells, the thickness of epidermis and mesophyll, the diameter of petiole and midrib, the thickness of phloem and xylem in the midrib and petiole, and the diameter and frequency of elements of xylem vessels. Differences observed between the leaf structure of coffee plants evaluated and the leaf growth conditions (rainy and dry seasons) indicated that there is a favorable anatomical plasticity regarding drought conditions. Thicker palisade parenchyma and total limbo, larger radii of phloem and xylem in the petiole and midrib were considered as favorable structural features to cope with water scarcity and they could be used as criteria to select drought-resistant cultivars. The following coffee plants were considered as more adapted to drought: Geisha, Semperlorens, BA 10, IAC H 8105-7, IAC H 8421-2, and the cultivar Catuaí Vermelho IAC 81. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-08-18 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n4p1 10.5007/2175-7925.2014v27n4p1 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n4p1 |
identifier_str_mv |
10.5007/2175-7925.2014v27n4p1 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2014v27n4p1/28013 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
dc.source.none.fl_str_mv |
Biotemas; v. 27 n. 4 (2014); 1-10 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
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1799940553429745664 |