Differential Expression of Genes for Tolerance to Salt Stress in Common Bean (Phaseolus vulgaris L.)

Overexpression of AtGRDP2, a novel glycine-rich domain protein, accelerates plant growth and improves stress tolerance

“…Besides the canonical GRPs, there are glycine-rich domain proteins (GRDPs), containing a short glycine-rich region. Several transcripts encoding GRDPs have been reported in Eucalyptus (Bocca et al, 2005 ), and recently our research group reported the Phaseolus vulgaris PvGRDP1 gene, and the Arabidopsis AtGRDP1 gene, which are induced under abiotic stress (Hernández-Lucero et al, 2014 ; Rodríguez-Hernández et al, 2014 ). The Arabidopsis AtGRDP2 gene is developmentally regulated, with particularly high mRNA expression levels in buds, flowers, and immature siliques.…”

“…In accordance, microarray data show that the AtGRDP2 gene is induced by salt stress in Arabidopsis roots (Ma et al, 2006 ). Recently, we reported that the common bean PvGRDP1 gene, orthologous to Arabidopsis AtGRDP2 gene, was induced in leaves by salt stress at 2 and 5 days, but was down-regulated in stems after 2 days of treatment (Hernández-Lucero et al, 2014 ). The expression pattern of some stress marker genes was monitored between the Atgrdp2-1 and 35S::AtGRDP2-OE3 overexpression lines under salt stress.…”

Contrasting Effects of NaCl and NaHCO3 Stresses on Seed Germination, Seedling Growth, Photosynthesis, and Osmoregulators of the Common Bean (Phaseolus vulgaris L.)

“…Therefore, these plant species contribute greatly to the improvement of soil fertility in semi-dry lands where most of the soil is already salinized or alkalized, such as in the Songnen Plain in Northeast China [23,24]. Previous studies have mainly investigated the responses of the common bean to neutral salt (NaCl) stress conditions, i.e., growth and development, parameters for photosynthesis, and ionic balance [25,26], antioxidant system [27,28], molecular regulatory network [29][30][31], etc. However, the response characteristics and corresponding mechanisms of the common bean to alkaline salt stress have rarely been reported.…”

Physiological characteristics in seeds of the common bean under multicollinearity and conditions of salinity

“…Salinisation reduces the productivity of various crops (ANDRÉO-SOUZA et al, 2010;MACHADO et al, 2007), including the bean (BEN-GAL et al, 2009), due to morphological changes caused by saline solutions, such as a reduction in germination (SAEIDI-SAR et al, 2013), during initial development (BOURGAULT et al, 2010) and in the vegetative growth attributed to osmotic stress; a result of the reduction in water potential of the medium and the toxic ion effect caused by the accumulation of ions in the tissues (AYDIN; KANT; TURAN, 2012;KHADRI;TEJERA;LLUCH, 2007;ROSALES et al, 2012), which modifies gene expression during salt stress (HERNÁNDEZ-LUCERO et al, 2014). However, among bean genotypes it is possible to select the most tolerant genetic materials to saline stress (BAYUELO-JIMENEZ; JASSO-PLATA; OCHOA, 2012) for use as parents in breeding programs.…”