Effect of water stress on protein content in two maize cultivars differing in drought resistance

Overexpression of an aquaporin gene PvPIP2;9 improved biomass yield, protein content, drought tolerance and water use efficiency in switchgrass (Panicum virgatum L.)

“…While due to the effect of PvPIP2;9 over‐expression, transgenic plants were less challenged with temporary fluxes of unfavorable leaf water potential. Decades earlier, effect of water stress on protein content in maize cultivars with contrasting drought tolerance has been reported that the drought‐tolerant cultivar showed higher protein contents than the susceptible one (Thakur & Rai, 1982). Effects of short‐term drought (4 or 7 days of drought) in switchgrass (Jiang et al., 2012) and long‐term drought (28 days) in miscanthus (van der Weijde et al., 2016) were reported that their cell wall components were affected by drought stress to various degrees.…”

“…A previous study showed that all tested switchgrass ecotypes suffered severe biomass reduction (75%–80%) with water stress at −4 MPa (Barney et al., 2009). On the other hand, drought stress was also known to affect the biomass feedstock quality with reduced protein and altered cell wall composition in several grasses (Jiang, Yao, & Wang, 2012; Thakur & Rai, 1982; van der Weijde et al., 2016). To minimize competition with primary food crop production for land use, much of switchgrass production are on less productive marginal lands where irrigation is often limited or unavailable during prolonged drought periods.…”

Evaluation of genus Cenchrus based on malondialdehyde, proline content, specific leaf area and carbon isotope discrimination for drought tolerance and divergence of species at DNA level

“…Additionally, specific leaf area have been reported to be associated with TE in several plant species (Virgona et al 1990;Wright et al 1994;Brown and Byrd 1997), and thus CID and SLA have been used as indirect measures of TE (Johnson and Tieszen 1994;Thumma et al 1998;Asalatha et al 1999). At species level, attempts have been made to decipher the mechanism of water stress tolerance and suitable indices like proline accumulation (Hanson et al 1977), protein metabolism (Thakur and Rai 1982), enzyme defence (Dhindsa and Matowe 1981), solute accumulation (Schwab and Heber 1984), solute leakage (Krishnamani et al 1984) and H 2 O 2 metabolism including level of lipid peroxidation have been postulated in different crops. The change in level of MDA which generally reflects the lipid peroxidation and consequent changes in the membrane permeability observed differently in species of wheat (Zhang and Kirkham 1994) and jute (Chowdhury and Choudhuri 1985).…”

Overexpression of an aquaporin gene PvPIP2;9 increased biomass yield and protein content, improved drought tolerance and water use efficiency and affected other PIP2 genes’ expression in switchgrass (Panicum virgatum L.)

“…While due to the effect of PvPIP2;9 over-expression, transgenic plants were less challenged with temporary uxes of unfavorable leaf water potential. Decades earlier, effect of water stress on protein contents in maize cultivars with contrasting drought tolerance has been reported that the drought tolerant cultivar showed higher protein contents than the susceptible one (22). Effects of short-term drought (4 or 7 days of drought) in switchgrass (23) and long-term drought (28 days) in miscanthus (24) were reported that their cell wall components were affected by drought stress to various degrees.…”