Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions

Bibliographic Details
Main Author: Fernandes, Christiane Noronha
Publication Date: 2013
Other Authors: Melo, Emanuelle Ferreira, Barbosa Barquero, Luis Orlando, Alves, José Donizeti, Júnior, Antonio Chalfun
Format: Article
Language: eng
por
Source: Coffee Science (Online)
Download full: http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384
Summary: Understanding what mechanisms are involved in drought response in coffee plants will generate relevant information to assist breeding and/or genetic engineering to obtain new commercial varieties with drought tolerance. This research aimed at studying the effects of drought on leaf water potential, carbohydrate concentrations, and sucrose synthaseand invertase activity in coffee seedlings (Coffea arabica Siriema), originating from a natural cross between C. racemosa and C. arabica Blue Mountain (Carvalho et al., 2008). Seedlings were grown in a greenhouse under non-irrigated and daily irrigated conditions. Plants were evaluated every three days until they reached the permanent wilting point or, at most. 30 days after withholding water. In addition, plants under different drought conditions (as of 30 days) were irrigated and evaluated 24 and 48 hours after water application. The non-irrigated treatment prompted a significant reduction in leaf water potential,whereas re-irrigation promoted partial recovery of plant water potential. There was a significant increase in the levels of total soluble sugars and reducing sugars, both in the leaves and roots of the non-irrigated plants. The re-irrigated plants behaved like the non-irrigated plants; however, lower levels of sugars were detected in these samples. The leaves and roots of the nonirrigated plants also showed a significant reduction in starch levels. The activity of sucrose synthase and invertase, neutral andacid enzymes, increased as a result of water stress.
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spelling Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditionsModificações no metabolismo de carboidratos em mudas de (Coffea arabica L. cv. SIRIEMA) sob condições de déficit hídricoCoffea arabicadroughtsucrose synthaseinvertasestotal soluble sugarsCoffea arabica L.droughtsucrose synthaseinvertasestotal soluble sugarsUnderstanding what mechanisms are involved in drought response in coffee plants will generate relevant information to assist breeding and/or genetic engineering to obtain new commercial varieties with drought tolerance. This research aimed at studying the effects of drought on leaf water potential, carbohydrate concentrations, and sucrose synthaseand invertase activity in coffee seedlings (Coffea arabica Siriema), originating from a natural cross between C. racemosa and C. arabica Blue Mountain (Carvalho et al., 2008). Seedlings were grown in a greenhouse under non-irrigated and daily irrigated conditions. Plants were evaluated every three days until they reached the permanent wilting point or, at most. 30 days after withholding water. In addition, plants under different drought conditions (as of 30 days) were irrigated and evaluated 24 and 48 hours after water application. The non-irrigated treatment prompted a significant reduction in leaf water potential,whereas re-irrigation promoted partial recovery of plant water potential. There was a significant increase in the levels of total soluble sugars and reducing sugars, both in the leaves and roots of the non-irrigated plants. The re-irrigated plants behaved like the non-irrigated plants; however, lower levels of sugars were detected in these samples. The leaves and roots of the nonirrigated plants also showed a significant reduction in starch levels. The activity of sucrose synthase and invertase, neutral andacid enzymes, increased as a result of water stress.A compreensão dos mecanismos envolvidos na resposta do cafeeiro ao déficit hídrico irá gerar informações relevantes para auxiliar no melhoramento e/ou na engenharia genética visando à obtenção de novas variedades comerciais tolerantes à seca. Objetivou-se, neste trabalho, estudar os efeitos do déficit hídrico sobre o potencial hídrico das folhas, concentrações de carboidratos e atividades da sintase da sacarose e invertase ácida em mudas de cafeeiros (Coffea arábicacv. Siriema), planta oriunda de um cruzamento natural entre C. racemosa e C. arabica cv. Blue Montain (Carvalho et al., 2008). As plantas foram colocadas para crescimento em casa-de-vegetação, em condições não irrigadas e irrigadas diariamente. As avaliações foram realizadas a cada três dias até o ponto de murcha permanente, ou no máximo por 30 dias após a suspensão da irrigação. Concomitantemente, as plantas em diferentes condições hídricas (a partir dos 30 dias) foram irrigadas e avaliadas 24 e 48 horas após a aplicação de água. O tratamento não irrigado promoveu uma reduçãosignificativa no potencial hídrico, enquanto a reirrigação promoveu uma recuperação parcial no potencial hídrico. Houve um aumento significativo nos teores de açúcares solúveis totais e redutores, nas folhas e raízes das plantas do tratamento não irrigado. Nas plantas que tiveram uma rerrigação se comportou como as plantas que permaneceram sem irrigação, contudo, menores teores de açúcares foram detectadas nas mesmas. As folhas e raízes das plantas sem irrigação tambémapresentaram significativa redução nos teores de amido. A atividade da sintase da sacarose e invertase, neutra e ácida, aumentou em função do estresse hídrico.Editora UFLA2013-12-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfimage/tiffimage/tiffimage/tiffimage/tiffhttp://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384Coffee Science - ISSN 1984-3909; Vol. 8 No. 2 (2013); 140-147Coffee Science; Vol. 8 Núm. 2 (2013); 140-147Coffee Science; v. 8 n. 2 (2013); 140-1471984-3909reponame:Coffee Science (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAengporhttp://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/pdf_23http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/1083http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/1084http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/1085http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/1086Copyright (c) 2020 Coffee Scienceinfo:eu-repo/semantics/openAccessFernandes, Christiane NoronhaMelo, Emanuelle FerreiraBarbosa Barquero, Luis OrlandoAlves, José DonizetiJúnior, Antonio Chalfun2013-12-26T15:14:21Zoai:coffeescience.ufla.br:article/384Revistahttp://www.coffeescience.ufla.br/index.php/CoffeesciencePUBhttp://www.coffeescience.ufla.br/index.php/Coffeescience/oaicoffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com1984-39091809-6875opendoar:2013-12-26T15:14:21Coffee Science (Online) - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions
Modificações no metabolismo de carboidratos em mudas de (Coffea arabica L. cv. SIRIEMA) sob condições de déficit hídrico
title Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions
spellingShingle Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions
Fernandes, Christiane Noronha
Coffea arabica
drought
sucrose synthase
invertases
total soluble sugars
Coffea arabica L.
drought
sucrose synthase
invertases
total soluble sugars
title_short Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions
title_full Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions
title_fullStr Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions
title_full_unstemmed Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions
title_sort Modifications in the metabolism of carbohydrates in (Coffea arabica L. cv. SIRIEMA) seedlings under drought conditions
author Fernandes, Christiane Noronha
author_facet Fernandes, Christiane Noronha
Melo, Emanuelle Ferreira
Barbosa Barquero, Luis Orlando
Alves, José Donizeti
Júnior, Antonio Chalfun
author_role author
author2 Melo, Emanuelle Ferreira
Barbosa Barquero, Luis Orlando
Alves, José Donizeti
Júnior, Antonio Chalfun
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Fernandes, Christiane Noronha
Melo, Emanuelle Ferreira
Barbosa Barquero, Luis Orlando
Alves, José Donizeti
Júnior, Antonio Chalfun
dc.subject.por.fl_str_mv Coffea arabica
drought
sucrose synthase
invertases
total soluble sugars
Coffea arabica L.
drought
sucrose synthase
invertases
total soluble sugars
topic Coffea arabica
drought
sucrose synthase
invertases
total soluble sugars
Coffea arabica L.
drought
sucrose synthase
invertases
total soluble sugars
description Understanding what mechanisms are involved in drought response in coffee plants will generate relevant information to assist breeding and/or genetic engineering to obtain new commercial varieties with drought tolerance. This research aimed at studying the effects of drought on leaf water potential, carbohydrate concentrations, and sucrose synthaseand invertase activity in coffee seedlings (Coffea arabica Siriema), originating from a natural cross between C. racemosa and C. arabica Blue Mountain (Carvalho et al., 2008). Seedlings were grown in a greenhouse under non-irrigated and daily irrigated conditions. Plants were evaluated every three days until they reached the permanent wilting point or, at most. 30 days after withholding water. In addition, plants under different drought conditions (as of 30 days) were irrigated and evaluated 24 and 48 hours after water application. The non-irrigated treatment prompted a significant reduction in leaf water potential,whereas re-irrigation promoted partial recovery of plant water potential. There was a significant increase in the levels of total soluble sugars and reducing sugars, both in the leaves and roots of the non-irrigated plants. The re-irrigated plants behaved like the non-irrigated plants; however, lower levels of sugars were detected in these samples. The leaves and roots of the nonirrigated plants also showed a significant reduction in starch levels. The activity of sucrose synthase and invertase, neutral andacid enzymes, increased as a result of water stress.
publishDate 2013
dc.date.none.fl_str_mv 2013-12-24
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 http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384
url http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/pdf_23
http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/1083
http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/1084
http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/1085
http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/384/1086
dc.rights.driver.fl_str_mv Copyright (c) 2020 Coffee Science
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Coffee Science
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
image/tiff
image/tiff
image/tiff
image/tiff
dc.publisher.none.fl_str_mv Editora UFLA
publisher.none.fl_str_mv Editora UFLA
dc.source.none.fl_str_mv Coffee Science - ISSN 1984-3909; Vol. 8 No. 2 (2013); 140-147
Coffee Science; Vol. 8 Núm. 2 (2013); 140-147
Coffee Science; v. 8 n. 2 (2013); 140-147
1984-3909
reponame:Coffee Science (Online)
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Coffee Science (Online)
collection Coffee Science (Online)
repository.name.fl_str_mv Coffee Science (Online) - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv coffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com
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