Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membran...
- Autores
- Beltrano, José; Ronco, Marta Guillermina
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The aim of this paper was to investigate the contribution of the arbuscular mycorrhizal fungus Glomus claroideum to drought stress tolerance in wheat plants grown under controlled conditions in a growth chamber, and subjected to moderate or severe water stress and rewatering. Water stress tolerance was determined through total dry weight, leaf relative water content, leakage of solutes and leaf chlorophyll and protein concentrations in mycorrhizal and nonmycorrhizal wheat plants. Total dry weight and leaf chlorophyll concentrations were significantly higher in mycorrhizal plants after moderate or severe water stress treatments compared with non-mycorrhizal ones. Electrolyte leakage was significantly lower in water-stressed inoculated plants. Compared to non-inoculated plants, leaf relative water content and total protein concentration of inoculated individuals increased only under severe water stress. When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants. In conclusion, root colonization by G. claroideum could be an adequate strategy to alleviate the deleterious effects of drought stress and retard the senescence syndrome in wheat.
O objetivo do trabalho foi pesquisar a contribuição do fungo micorrízico arbuscular Glomus claroideum à tolerância ao déficit hídrico em plantas de trigo cultivadas sob condições controladas em uma câmara de crescimento, submetidas ao estresse hídrico moderado ou severo e reidratação. A tolerância das plantas ao estresse hídrico foi determinada mediante o peso seco total, conteúdo relativo de água foliar, extravasamento de solutos e concentrações foliares de clorofilas e proteínas totais nas plantas de trigo micorrizadas e não-micorrizadas. O peso seco total e a concentração de clorofila foram significativamente maiores nas plantas micorrizadas sob estresse hídrico moderado ou severo, quando comparadas com as não-micorrizadas. O extravasamento de solutos foi significativamente menor nas plantas inoculadas estressadas. O conteúdo relativo de água foliar e a concentração de proteínas totais nas plantas inoculadas aumentaram apenas em condições de estresse hídrico severo. Após a re-irrigação, nas plantas micorrizadas, houve aumento do peso seco total e da concentração de clorofilas, além da recuperação da integridade das membranas celulares, quando comparadas com as plantas não-micorrizadas. Em suma, a colonização das raízes por G. claroideum poderia ser uma estratégia adequada para reduzir os efeitos deletérios do estresse hídrico e retardar a síndrome da senescência em trigo.
Facultad de Ciencias Agrarias y Forestales - Materia
-
Ciencias Exactas
Biología
mycorrhizae
arbuscular
fungi
relative water content
glomus claroideum
rewatering
triticum aestivum
solute leakage
water deficit
conteúdo relativo de água
déficit hídrico
extravasamento de solutos
micorrizas
reidratação - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc/3.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/34646
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Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stabilityA melhoria da tolerância do trigo (Triticum aestivum L.) ao estresse hídrico e à reidratação pelo fungo micorrízico arbuscular (Glomus claroideum): Efeito sobre o crescimento e estabilidade das membranas celularesBeltrano, JoséRonco, Marta GuillerminaCiencias ExactasBiologíamycorrhizaearbuscularfungirelative water contentglomus claroideumrewateringtriticum aestivumsolute leakagewater deficitconteúdo relativo de águadéficit hídricoextravasamento de solutosmicorrizasreidrataçãoThe aim of this paper was to investigate the contribution of the arbuscular mycorrhizal fungus Glomus claroideum to drought stress tolerance in wheat plants grown under controlled conditions in a growth chamber, and subjected to moderate or severe water stress and rewatering. Water stress tolerance was determined through total dry weight, leaf relative water content, leakage of solutes and leaf chlorophyll and protein concentrations in mycorrhizal and nonmycorrhizal wheat plants. Total dry weight and leaf chlorophyll concentrations were significantly higher in mycorrhizal plants after moderate or severe water stress treatments compared with non-mycorrhizal ones. Electrolyte leakage was significantly lower in water-stressed inoculated plants. Compared to non-inoculated plants, leaf relative water content and total protein concentration of inoculated individuals increased only under severe water stress. When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants. In conclusion, root colonization by G. claroideum could be an adequate strategy to alleviate the deleterious effects of drought stress and retard the senescence syndrome in wheat.O objetivo do trabalho foi pesquisar a contribuição do fungo micorrízico arbuscular <i>Glomus claroideum</i> à tolerância ao déficit hídrico em plantas de trigo cultivadas sob condições controladas em uma câmara de crescimento, submetidas ao estresse hídrico moderado ou severo e reidratação. A tolerância das plantas ao estresse hídrico foi determinada mediante o peso seco total, conteúdo relativo de água foliar, extravasamento de solutos e concentrações foliares de clorofilas e proteínas totais nas plantas de trigo micorrizadas e não-micorrizadas. O peso seco total e a concentração de clorofila foram significativamente maiores nas plantas micorrizadas sob estresse hídrico moderado ou severo, quando comparadas com as não-micorrizadas. O extravasamento de solutos foi significativamente menor nas plantas inoculadas estressadas. O conteúdo relativo de água foliar e a concentração de proteínas totais nas plantas inoculadas aumentaram apenas em condições de estresse hídrico severo. Após a re-irrigação, nas plantas micorrizadas, houve aumento do peso seco total e da concentração de clorofilas, além da recuperação da integridade das membranas celulares, quando comparadas com as plantas não-micorrizadas. Em suma, a colonização das raízes por G. claroideum poderia ser uma estratégia adequada para reduzir os efeitos deletérios do estresse hídrico e retardar a síndrome da senescência em trigo.Facultad de Ciencias Agrarias y Forestales2008-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf299-37http://sedici.unlp.edu.ar/handle/10915/34646enginfo:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/pdf/bjpp/v20n1/04.pdfinfo:eu-repo/semantics/altIdentifier/issn/1677-0420info:eu-repo/semantics/altIdentifier/doi/10.1590/S1677-04202008000100004info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/3.0/Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T10:57:03Zoai:sedici.unlp.edu.ar:10915/34646Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 10:57:04.22SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability A melhoria da tolerância do trigo (Triticum aestivum L.) ao estresse hídrico e à reidratação pelo fungo micorrízico arbuscular (Glomus claroideum): Efeito sobre o crescimento e estabilidade das membranas celulares |
title |
Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability |
spellingShingle |
Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability Beltrano, José Ciencias Exactas Biología mycorrhizae arbuscular fungi relative water content glomus claroideum rewatering triticum aestivum solute leakage water deficit conteúdo relativo de água déficit hídrico extravasamento de solutos micorrizas reidratação |
title_short |
Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability |
title_full |
Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability |
title_fullStr |
Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability |
title_full_unstemmed |
Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability |
title_sort |
Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability |
dc.creator.none.fl_str_mv |
Beltrano, José Ronco, Marta Guillermina |
author |
Beltrano, José |
author_facet |
Beltrano, José Ronco, Marta Guillermina |
author_role |
author |
author2 |
Ronco, Marta Guillermina |
author2_role |
author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Biología mycorrhizae arbuscular fungi relative water content glomus claroideum rewatering triticum aestivum solute leakage water deficit conteúdo relativo de água déficit hídrico extravasamento de solutos micorrizas reidratação |
topic |
Ciencias Exactas Biología mycorrhizae arbuscular fungi relative water content glomus claroideum rewatering triticum aestivum solute leakage water deficit conteúdo relativo de água déficit hídrico extravasamento de solutos micorrizas reidratação |
dc.description.none.fl_txt_mv |
The aim of this paper was to investigate the contribution of the arbuscular mycorrhizal fungus Glomus claroideum to drought stress tolerance in wheat plants grown under controlled conditions in a growth chamber, and subjected to moderate or severe water stress and rewatering. Water stress tolerance was determined through total dry weight, leaf relative water content, leakage of solutes and leaf chlorophyll and protein concentrations in mycorrhizal and nonmycorrhizal wheat plants. Total dry weight and leaf chlorophyll concentrations were significantly higher in mycorrhizal plants after moderate or severe water stress treatments compared with non-mycorrhizal ones. Electrolyte leakage was significantly lower in water-stressed inoculated plants. Compared to non-inoculated plants, leaf relative water content and total protein concentration of inoculated individuals increased only under severe water stress. When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants. In conclusion, root colonization by G. claroideum could be an adequate strategy to alleviate the deleterious effects of drought stress and retard the senescence syndrome in wheat. O objetivo do trabalho foi pesquisar a contribuição do fungo micorrízico arbuscular <i>Glomus claroideum</i> à tolerância ao déficit hídrico em plantas de trigo cultivadas sob condições controladas em uma câmara de crescimento, submetidas ao estresse hídrico moderado ou severo e reidratação. A tolerância das plantas ao estresse hídrico foi determinada mediante o peso seco total, conteúdo relativo de água foliar, extravasamento de solutos e concentrações foliares de clorofilas e proteínas totais nas plantas de trigo micorrizadas e não-micorrizadas. O peso seco total e a concentração de clorofila foram significativamente maiores nas plantas micorrizadas sob estresse hídrico moderado ou severo, quando comparadas com as não-micorrizadas. O extravasamento de solutos foi significativamente menor nas plantas inoculadas estressadas. O conteúdo relativo de água foliar e a concentração de proteínas totais nas plantas inoculadas aumentaram apenas em condições de estresse hídrico severo. Após a re-irrigação, nas plantas micorrizadas, houve aumento do peso seco total e da concentração de clorofilas, além da recuperação da integridade das membranas celulares, quando comparadas com as plantas não-micorrizadas. Em suma, a colonização das raízes por G. claroideum poderia ser uma estratégia adequada para reduzir os efeitos deletérios do estresse hídrico e retardar a síndrome da senescência em trigo. Facultad de Ciencias Agrarias y Forestales |
description |
The aim of this paper was to investigate the contribution of the arbuscular mycorrhizal fungus Glomus claroideum to drought stress tolerance in wheat plants grown under controlled conditions in a growth chamber, and subjected to moderate or severe water stress and rewatering. Water stress tolerance was determined through total dry weight, leaf relative water content, leakage of solutes and leaf chlorophyll and protein concentrations in mycorrhizal and nonmycorrhizal wheat plants. Total dry weight and leaf chlorophyll concentrations were significantly higher in mycorrhizal plants after moderate or severe water stress treatments compared with non-mycorrhizal ones. Electrolyte leakage was significantly lower in water-stressed inoculated plants. Compared to non-inoculated plants, leaf relative water content and total protein concentration of inoculated individuals increased only under severe water stress. When irrigation was re-established, mycorrhizal plants increased their total dry weight and leaf chlorophyll concentration, and recovered cell membrane permeability in leaves compared with non-mycorrhizal plants. In conclusion, root colonization by G. claroideum could be an adequate strategy to alleviate the deleterious effects of drought stress and retard the senescence syndrome in wheat. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/34646 |
url |
http://sedici.unlp.edu.ar/handle/10915/34646 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/pdf/bjpp/v20n1/04.pdf info:eu-repo/semantics/altIdentifier/issn/1677-0420 info:eu-repo/semantics/altIdentifier/doi/10.1590/S1677-04202008000100004 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc/3.0/ Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/3.0/ Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) |
dc.format.none.fl_str_mv |
application/pdf 299-37 |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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