Drought stress-induced compositional changes in tolerant transgenic rice and its wild type

Nitrogen effect on amino acid composition in leaf and grain of japonica rice during grain filling stage

“…Nevertheless, the amino-acid composition of the protein did not change by drought. By contrast, Nam et al (2014) found concentrations of aspartic acid, phenylalanine and valine in rice grains were significantly elevated by drought treatment. Chang et al (2008) reported that N stress significantly reduced N accumulation in rice grains, leading to a decrease in protein content, total amino acids, and essential amino acids.…”

Quantitative assessment of indica rice germination to hydropriming, hormonal priming and polyethylen glycol priming

“…For this reason, investigation of these parameters are the most important subjects of studying plants in initial growth steps under stress (Jamil et al, 2006). Reduction in the above characteristics as a result of abiotic stress has been reported in a number of plant species such as wheat, rice and maize (Nam et al, 2014;Pittelkow et al, 2014;Pant and Bose, 2016). Althought the MR219-4, MR219-9 and MR219 seeds germinated in the higher PEG levels, the MR220 (-1.2 MPa), MR159 and MR211 (-0.8 and -1.2 MPa) seeds could not germinate at all (Table 8).…”

“…According to Pittelkow et al (2014), rice yield can be reduced up to 60% during growth under moderate stress conditions. However in the recent years, researchers aimed to breed the drought-tolerant rice cultivars through classic genetic and modern biotechnological approaches (Nam et al, 2014). To this end, the present study was conducted to investigate the effect of various seed priming agents on different Malaysian rice factors, in germination and early growth stages.…”

Impact of induced drought stress on the metabolite profiles of barley grain

“…This weak impact of drought stress on FAME is in agreement with data reported for grain from maize grown under drought and watered conditions (Harrigan et al 2007). Nam et al (2013) reported significant differences for the major FAME upon drought stress in rice grain; however, the investigation was limited to one season. In the leaves of barley seedlings subjected to water deficit the proportions of unsaturated fatty acids were higher than in unstressed seedlings (Zúñgia et al 1990).…”

“…Considering that the grain investigated in this study was harvested at full ripeness, the lack of differences in the content of free proline between grain from drought-stressed and watered plants might be explained by this phenomenon. Ahmed et al (2012) and Nam et al (2013) reported that protein-based amino acids were increased under drought stress in barley and rice grain, respectively.…”