Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5433/1679-0359.2011v32n4p1345 http://hdl.handle.net/11449/42620 |
Resumo: | The aim of this work was evaluate the physiological indicators of association between water deficiency and soil acidity, by determining the nitrate reductase activity, the levels of free proline and initial growth of the root system of seedlings of sugarcane cv. IAC91-5155. After 30 days, the seedlings were transferred to plastic pots with 12 dm3 of dystrophic alic Red Latosol (Oxisol) and submitted to association of three treatments of water availability: no stress (70%), moderate stress (55%) and severe stress (40%), in according with field capacity and three acidity treatments: no stress (55%), moderate stress (33%) and severe stress (23%), considering the base saturation. The experimental design was that of random blocks under factorial scheme of 3x3, with four replicates. After 60 days under the stress association, the levels of free proline, the nitrate reductase activity and the growth of the sugarcane roots system were evaluated in seedlings of sugarcane. The nitrate reductase enzyme activity can be considered a physiological indicator of the effect of the association of acid and water stress in moderate conditions in soil, while the free proline can be considered physiological indicator to both stress in severe conditions. Water deficiency increasing reduced growth of sugarcane roots. |
id |
UNSP_51b1b71526586269659eb7c7bb7808d8 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/42620 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no soloNitrate reductase enzyme activity and free proline contents in sugarcane roots under water and acid stress in soilAbiotics stressnitrogenosmoprotectorroot systemSaccharum spp.The aim of this work was evaluate the physiological indicators of association between water deficiency and soil acidity, by determining the nitrate reductase activity, the levels of free proline and initial growth of the root system of seedlings of sugarcane cv. IAC91-5155. After 30 days, the seedlings were transferred to plastic pots with 12 dm3 of dystrophic alic Red Latosol (Oxisol) and submitted to association of three treatments of water availability: no stress (70%), moderate stress (55%) and severe stress (40%), in according with field capacity and three acidity treatments: no stress (55%), moderate stress (33%) and severe stress (23%), considering the base saturation. The experimental design was that of random blocks under factorial scheme of 3x3, with four replicates. After 60 days under the stress association, the levels of free proline, the nitrate reductase activity and the growth of the sugarcane roots system were evaluated in seedlings of sugarcane. The nitrate reductase enzyme activity can be considered a physiological indicator of the effect of the association of acid and water stress in moderate conditions in soil, while the free proline can be considered physiological indicator to both stress in severe conditions. Water deficiency increasing reduced growth of sugarcane roots.Agencia Paulista Tecnol Agronegocios, APTA Polo Ctr Oeste, Sao Jose do Rio Preto, SP, BrazilUniv Estadual Paulista, UNESP, Fac Ciencias Agron, Jaboticabal, SP, BrazilUniv Estadual Paulista, UNESP, Fac Ciencias Agr & Vet, Jaboticabal, SP, BrazilUniv Estadual Paulista, UNESP, Fac Ciencias Agron, Jaboticabal, SP, BrazilUniv Estadual Paulista, UNESP, Fac Ciencias Agr & Vet, Jaboticabal, SP, BrazilUniversidade Estadual de Londrina (UEL)Agência Paulista de Tecnologia dos Agronegócios (APTA)Universidade Estadual Paulista (Unesp)de Lima Rhein, Andressa Freitas [UNESP]Mathias dos Santos, Durvalina Maria [UNESP]Carlin, Samira Domingues2014-05-20T15:34:40Z2014-05-20T15:34:40Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1345-1359application/pdfhttp://dx.doi.org/10.5433/1679-0359.2011v32n4p1345Semina-ciencias Agrarias. Londrina: Universidade Estadual de Londrina (UEL), v. 32, n. 4, p. 1345-1359, 2011.1676-546Xhttp://hdl.handle.net/11449/4262010.5433/1679-0359.2011v32n4p1345WOS:000297940500013WOS000297940500013.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporSemina: Ciências Agrárias0.349info:eu-repo/semantics/openAccess2023-10-07T06:04:26Zoai:repositorio.unesp.br:11449/42620Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T11:43:49.623824Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo Nitrate reductase enzyme activity and free proline contents in sugarcane roots under water and acid stress in soil |
title |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo |
spellingShingle |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo de Lima Rhein, Andressa Freitas [UNESP] Abiotics stress nitrogen osmoprotector root system Saccharum spp. |
title_short |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo |
title_full |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo |
title_fullStr |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo |
title_full_unstemmed |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo |
title_sort |
Atividade da enzima redutase do nitrato e teores de prolina livre em raízes de cana-de-açúcar sob os estresses hídrico e ácido no solo |
author |
de Lima Rhein, Andressa Freitas [UNESP] |
author_facet |
de Lima Rhein, Andressa Freitas [UNESP] Mathias dos Santos, Durvalina Maria [UNESP] Carlin, Samira Domingues |
author_role |
author |
author2 |
Mathias dos Santos, Durvalina Maria [UNESP] Carlin, Samira Domingues |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Agência Paulista de Tecnologia dos Agronegócios (APTA) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Lima Rhein, Andressa Freitas [UNESP] Mathias dos Santos, Durvalina Maria [UNESP] Carlin, Samira Domingues |
dc.subject.por.fl_str_mv |
Abiotics stress nitrogen osmoprotector root system Saccharum spp. |
topic |
Abiotics stress nitrogen osmoprotector root system Saccharum spp. |
description |
The aim of this work was evaluate the physiological indicators of association between water deficiency and soil acidity, by determining the nitrate reductase activity, the levels of free proline and initial growth of the root system of seedlings of sugarcane cv. IAC91-5155. After 30 days, the seedlings were transferred to plastic pots with 12 dm3 of dystrophic alic Red Latosol (Oxisol) and submitted to association of three treatments of water availability: no stress (70%), moderate stress (55%) and severe stress (40%), in according with field capacity and three acidity treatments: no stress (55%), moderate stress (33%) and severe stress (23%), considering the base saturation. The experimental design was that of random blocks under factorial scheme of 3x3, with four replicates. After 60 days under the stress association, the levels of free proline, the nitrate reductase activity and the growth of the sugarcane roots system were evaluated in seedlings of sugarcane. The nitrate reductase enzyme activity can be considered a physiological indicator of the effect of the association of acid and water stress in moderate conditions in soil, while the free proline can be considered physiological indicator to both stress in severe conditions. Water deficiency increasing reduced growth of sugarcane roots. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 2014-05-20T15:34:40Z 2014-05-20T15:34:40Z |
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/10.5433/1679-0359.2011v32n4p1345 Semina-ciencias Agrarias. Londrina: Universidade Estadual de Londrina (UEL), v. 32, n. 4, p. 1345-1359, 2011. 1676-546X http://hdl.handle.net/11449/42620 10.5433/1679-0359.2011v32n4p1345 WOS:000297940500013 WOS000297940500013.pdf |
url |
http://dx.doi.org/10.5433/1679-0359.2011v32n4p1345 http://hdl.handle.net/11449/42620 |
identifier_str_mv |
Semina-ciencias Agrarias. Londrina: Universidade Estadual de Londrina (UEL), v. 32, n. 4, p. 1345-1359, 2011. 1676-546X 10.5433/1679-0359.2011v32n4p1345 WOS:000297940500013 WOS000297940500013.pdf |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Semina: Ciências Agrárias 0.349 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1345-1359 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Londrina (UEL) |
publisher.none.fl_str_mv |
Universidade Estadual de Londrina (UEL) |
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_ |
1803045871573532672 |