INVESTIGADORES
ALBERTO Edgardo Omar
artículos
Título:
Alleviation of salt stress in Lotus glaber by Glomus intraradices
Autor/es:
SANNAZZARO, A. I; RUIZ O. A.; ALBERTÓ, E.; MENÉNDEZ A. B
Revista:
PLANT AND SOIL
Editorial:
Springer
Referencias:
Lugar: Netherlands; Año: 2006 vol. 285 p. 279 - 287
ISSN:
0032-079X
Resumen:
Abstract Lotus glaber is a glycophytic, perennial
legume from Europe that occurs widely in saline
habitats. We evaluated the effect of mycorrhizal
fungus colonization on the response to salt stress
of two genotypes of L. glaber differing in their
tolerance to salinity. The experiment consisted of
a randomized block design with two factors: (1)
mycorrhizal fungus treatments (with or without
AM fungus) and (2) two salinity levels of 0 and
200 mM NaCl. Our results indicated that Glomus
intraradices established a more efficient symbiosis
with the tolerant than with the sensitive genotype.Lotus glaber is a glycophytic, perennial
legume from Europe that occurs widely in saline
habitats. We evaluated the effect of mycorrhizal
fungus colonization on the response to salt stress
of two genotypes of L. glaber differing in their
tolerance to salinity. The experiment consisted of
a randomized block design with two factors: (1)
mycorrhizal fungus treatments (with or without
AM fungus) and (2) two salinity levels of 0 and
200 mM NaCl. Our results indicated that Glomus
intraradices established a more efficient symbiosis
with the tolerant than with the sensitive genotype.L. glaber differing in their
tolerance to salinity. The experiment consisted of
a randomized block design with two factors: (1)
mycorrhizal fungus treatments (with or without
AM fungus) and (2) two salinity levels of 0 and
200 mM NaCl. Our results indicated that Glomus
intraradices established a more efficient symbiosis
with the tolerant than with the sensitive genotype.Glomus
intraradices established a more efficient symbiosis
with the tolerant than with the sensitive genotype.established a more efficient symbiosis
with the tolerant than with the sensitive genotype.
G. intraradices improved growth of L. glaberimproved growth of L. glaber
plants under saline conditions. They showed
higher values of net growth, shoot/root and K+/
Na+ ratios, and protein concentrations than controls.
Tolerant AM plants also showed higher
chlorophyll levels than non-AM ones. Prevention
of Na+ accumulation in the plant and enhancement
ofK+ concentrations in roots observed in this work
could be part of the general mechanism of salt
stress alleviation of L. glaber by G. intraradices.+/
Na+ ratios, and protein concentrations than controls.
Tolerant AM plants also showed higher
chlorophyll levels than non-AM ones. Prevention
of Na+ accumulation in the plant and enhancement
ofK+ concentrations in roots observed in this work
could be part of the general mechanism of salt
stress alleviation of L. glaber by G. intraradices.+ ratios, and protein concentrations than controls.
Tolerant AM plants also showed higher
chlorophyll levels than non-AM ones. Prevention
of Na+ accumulation in the plant and enhancement
ofK+ concentrations in roots observed in this work
could be part of the general mechanism of salt
stress alleviation of L. glaber by G. intraradices.+ accumulation in the plant and enhancement
ofK+ concentrations in roots observed in this work
could be part of the general mechanism of salt
stress alleviation of L. glaber by G. intraradices.+ concentrations in roots observed in this work
could be part of the general mechanism of salt
stress alleviation of L. glaber by G. intraradices.L. glaber by G. intraradices.