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

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...

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Autores principales: Beltrano, José, Ronco, Marta Guillermina
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/34646
http://www.scielo.br/pdf/bjpp/v20n1/04.pdf
Aporte de:
id I19-R120-10915-34646
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
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
spellingShingle 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
Beltrano, José
Ronco, Marta Guillermina
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
topic_facet 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
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.
format Articulo
Articulo
author Beltrano, José
Ronco, Marta Guillermina
author_facet Beltrano, José
Ronco, Marta Guillermina
author_sort Beltrano, José
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
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
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/34646
http://www.scielo.br/pdf/bjpp/v20n1/04.pdf
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