Accumulation of proline in leaves of sorghum genotypes (Sorghum bicolor L. Moench) which differ in their response to drought

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:32:06Z
Fecha de publicación2003-01-01
ResumenThe accumulation of proline in the leaves of three sorghum genotypes, which differ in their response to drought was determined by measuring the water potential, their components and the proline content at the end of a water stress applied at three phenological stages. Results indicate that water stress induces increments in the proline content, depending on the phenological stage in which the stress happens and on the genotype, since the differences between genotypes were significant only when drought was applied at flag leaf stage. The resistant genotype UAT 152 accumulated the most proline when water stress was applied at flag leaf stage and at panicle initiation. It was concluded that higher proline accumulation under water stress could be a physiological mechanism of sorghum genotypes that confering resistance to this factor due to its relationship with the turgor maintenance, explained by a reduction in the osmotic potential and its possible contribution to osmotic adjustment, mainly in the drought resistant genotypes. In this study, accumulation in leaves, suggests that the differences between resistant genotypes and the susceptible one, may involve not only this mechanism, but also the capacity of proline translocation to the root, like in the case of the resistant genotype UAT 124; or other osmolytes like ABA, that can explain the behavior in the osmotic potential and, consequently, in the water potential.es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/3975
Idiomaeses_ES
EditorialTECH SCIENCE PRESSes_ES
RelaciónPhyton-International Journal of Experimental Botanyes_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuentePhyton-International Journal of Experimental Botany
TítuloAccumulation of proline in leaves of sorghum genotypes (Sorghum bicolor L. Moench) which differ in their response to droughtes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCastro, Nava Sergio
AutorOrtiz-Cereceres, Joaquin
AutorMendoza-Castillo, Ma del Carmen
AutorHuerta, Alfredo J.
AutorTrejo-Lopez, Carlos
AutorZavala-Garcia, Francisco
AutorMartinez-Garza, Angel
AutorCastro, Nava Sergioes_ES
AutorOrtiz-Cereceres, Joaquines_ES
AutorMendoza-Castillo, Ma del Carmenes_ES
AutorHuerta, Alfredo J.es_ES
AutorTrejo-Lopez, Carloses_ES
AutorZavala-Garcia, Franciscoes_ES
AutorMartinez-Garza, Angeles_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Rango de páginas49-57es_ES
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES

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