The Effect of the Amount of Nitrogen Fertilizer on Starch Metabolism in Leaf Sheath of Japonica and Indica Rice Varieties during the Heading Period

Robust phenotyping strategies for evaluation of stem non-structural carbohydrates (NSC) in rice

“…Management conditions that delay senescence (e.g. heavy nitrogen application) seem to have the opposite effect and suppress translocation of stem reserves, in effect decreasing their grain-filling contribution (Hirano et al , 2005; Fu et al , 2011; Pan et al , 2011). Contrasting with wheat research in which the agronomic role of stem fructans was established early and now informs wheat physiological breeding (Bidinger et al , 1977; Pask et al , 2012; Reynolds et al , 2012), studies on rice have not been able to clearly define aspects of stem reserves that are genetically tractable or capable of optimization and thereby valuable for varietal improvement.…”

CO2-Responsive CONSTANS, CONSTANS-Like, and Time of Chlorophyll a/b Binding Protein Expression1 Protein Is a Positive Regulator of Starch Synthesis in Vegetative Organs of Rice

“…Starch accumulation in leaf sheath is also affected by nitrogen status being stimulated by limiting nitrogen and decreased by excess nitrogen application (Hirano et al, 2005). In previous work, we identified many genes of unknown function, which are differentially expressed under elevated CO 2 in rice (Fukayama et al, 2009).…”

Characterization of sugar metabolism in the stem of Tachisuzuka, a whole-crop silage rice cultivar with high sugar content in the stem

“…Only PR treatment was conducted in 2013. (Chen & Wang, 2008;Hirano et al, 2005Hirano et al, , 2016Hirose et al, 2006;Scofield et al, 2007;Sugimura et al, 2015;Toyota et al, 2006;Watanabe et al, 1997) and the metabolic pathway involved in the interconversion between sucrose and starch is understood (Figure 1), the key factor underlying sugar accumulation in rice stems remains unknown.…”