NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plants

High salt concentrations in soils negatively affect maize growth. Techniques such as remote hybridization and in vitro selection have been extensively used to accelerate breeding processes. In order to determine the usefulness of Tripsacum to improve salt tolerance in maize, the effects of NaCl, in...

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Autores principales:	Pesqueira,Julieta, García,Maria Dina, Staltari,Sebastian, Molina,Maria del Carmen
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2006
Materias:	intergeneric hybrid plant regeneration organogenesis salinity tolerance
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300022
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spelling	oai:scielo:S0717-345820060003000222007-01-17NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plantsPesqueira,JulietaGarcía,Maria DinaStaltari,SebastianMolina,Maria del Carmen intergeneric hybrid plant regeneration organogenesis salinity tolerance High salt concentrations in soils negatively affect maize growth. Techniques such as remote hybridization and in vitro selection have been extensively used to accelerate breeding processes. In order to determine the usefulness of Tripsacum to improve salt tolerance in maize, the effects of NaCl, in vitro and in vivo, were evaluated in an intergeneric hybrid (MT) obtained from crossing Zea mays with Tripsacum dactyloides. Organogenic calli, induced from immature MT hybrid embryos, were exposed to different NaCl concentrations and the survival and regeneration percentages were calculated. Plants of the MT hybrid, obtained from the organogenic calli, were exposed to NaCl concentrations considered harmful for maize. The shoot dry weights of plants exposed to 250 mM NaCl did not show significant differences respect to the control ones. Although sodium content in shoots was incremented 2,5 fold, it was not toxic for this material. The MT hybrid showed better behavior, in vitro and in vivo, that maize genotypes exposed to similar conditions.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.9 n.3 20062006-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300022en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	intergeneric hybrid plant regeneration organogenesis salinity tolerance
spellingShingle	intergeneric hybrid plant regeneration organogenesis salinity tolerance Pesqueira,Julieta García,Maria Dina Staltari,Sebastian Molina,Maria del Carmen NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plants
description	High salt concentrations in soils negatively affect maize growth. Techniques such as remote hybridization and in vitro selection have been extensively used to accelerate breeding processes. In order to determine the usefulness of Tripsacum to improve salt tolerance in maize, the effects of NaCl, in vitro and in vivo, were evaluated in an intergeneric hybrid (MT) obtained from crossing Zea mays with Tripsacum dactyloides. Organogenic calli, induced from immature MT hybrid embryos, were exposed to different NaCl concentrations and the survival and regeneration percentages were calculated. Plants of the MT hybrid, obtained from the organogenic calli, were exposed to NaCl concentrations considered harmful for maize. The shoot dry weights of plants exposed to 250 mM NaCl did not show significant differences respect to the control ones. Although sodium content in shoots was incremented 2,5 fold, it was not toxic for this material. The MT hybrid showed better behavior, in vitro and in vivo, that maize genotypes exposed to similar conditions.
author	Pesqueira,Julieta García,Maria Dina Staltari,Sebastian Molina,Maria del Carmen
author_facet	Pesqueira,Julieta García,Maria Dina Staltari,Sebastian Molina,Maria del Carmen
author_sort	Pesqueira,Julieta
title	NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plants
title_short	NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plants
title_full	NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plants
title_fullStr	NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plants
title_full_unstemmed	NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plants
title_sort	nacl effects in zea mays l. x tripsacum dactyloides (l.) l. hybrid calli and plants
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300022
work_keys_str_mv	AT pesqueirajulieta nacleffectsinzeamayslxtripsacumdactyloidesllhybridcalliandplants AT garciamariadina nacleffectsinzeamayslxtripsacumdactyloidesllhybridcalliandplants AT staltarisebastian nacleffectsinzeamayslxtripsacumdactyloidesllhybridcalliandplants AT molinamariadelcarmen nacleffectsinzeamayslxtripsacumdactyloidesllhybridcalliandplants
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NaCl effects in Zea mays L. x Tripsacum dactyloides (L.) L. hybrid calli and plants

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