Inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (<i>Capsicum annuum</i> L.)

In general, heavy metals interfere with several physiological processes and reduce plant growth. Plants naturally establish symbiotic associations with soil microorganisms, such as mycorrhizal fungi. The aim of this research was to determine if inoculation with mycorrhizal fungi increases tolerance...

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Autores principales: Ruscitti, Marcela, Arango, María Cecilia, Ronco, Marta Guillermina, Beltrano, José
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Agrarias
electrolytes leakage
Capsicum annuum
Fungi
Glomus
heavy metals
Glomus intraradices
Glomus mosseae
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/36645
http://www.scielo.br/pdf/bjpp/v23n1/04.pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-36645
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
electrolytes leakage
Capsicum annuum
Fungi
Glomus
heavy metals
Glomus intraradices
Glomus mosseae
spellingShingle Ciencias Agrarias
electrolytes leakage
Capsicum annuum
Fungi
Glomus
heavy metals
Glomus intraradices
Glomus mosseae
Ruscitti, Marcela
Arango, María Cecilia
Ronco, Marta Guillermina
Beltrano, José
Inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (<i>Capsicum annuum</i> L.)
topic_facet Ciencias Agrarias
electrolytes leakage
Capsicum annuum
Fungi
Glomus
heavy metals
Glomus intraradices
Glomus mosseae
description In general, heavy metals interfere with several physiological processes and reduce plant growth. Plants naturally establish symbiotic associations with soil microorganisms, such as mycorrhizal fungi. The aim of this research was to determine if inoculation with mycorrhizal fungi increases tolerance to Cr, evidenced by growth and biochemical parameters and the effect on roots membranes in <i>Capsicum annum</i>. Plants were either non-inoculated or inoculated with <i>Glomus mosseae</i> or <i>Glomus intraradices</i>, and grown in the presence of different concentration of Cr (K<SUB>2</SUB>Cr<SUB>2</SUB>O<SUB>4</SUB>) in soil. Pepper plants grown without Cr behaved as mycotrophic species. At the highest concentration (200 μM K<SUB>2</SUB>Cr<SUB>2</SUB>O<SUB>4</SUB>), Cr reduced root colonization by G. <i>mosseae</i> or G. <i>intraradices</i> (to 23 and 20% respectively). Moderate and high concentrations of Cr reduced all growth parameters. The interaction of inoculation and Cr increased leaf chlorophyll and proline content while reduced the leaf protein and root proline content. Carotenoid content was not affected by treatments. High Cr concentrations increased significantly electrolytes leakage in roots, either non-inoculated or inoculated plants. At the highest Cr concentration, inoculated plants had double the biomass of non-inoculated plants. Cr content in roots of inoculated plants was significantly higher than in non-inoculated plants. Chromium accumulation was low in leaves and showed no differences between treatments. Mycorrhization increased pepper plant tolerance to Cr in the soil, modifying proline metabolism to assure a more efficient response.
format Articulo
Articulo
author Ruscitti, Marcela
Arango, María Cecilia
Ronco, Marta Guillermina
Beltrano, José
author_facet Ruscitti, Marcela
Arango, María Cecilia
Ronco, Marta Guillermina
Beltrano, José
author_sort Ruscitti, Marcela
title Inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (<i>Capsicum annuum</i> L.)
title_short Inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (<i>Capsicum annuum</i> L.)
title_full Inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (<i>Capsicum annuum</i> L.)
title_fullStr Inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (<i>Capsicum annuum</i> L.)
title_full_unstemmed Inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (<i>Capsicum annuum</i> L.)
title_sort inoculation with mycorrhizal fungi modifies praline metabolism and increases chromium tolerance in pepper plants (<i>capsicum annuum</i> l.)
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/36645
http://www.scielo.br/pdf/bjpp/v23n1/04.pdf
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