Grain Phytic Acid and Protein are Highly Correlated in Winter Wheat

Abstract

Phytic acid (myo‐inositol hexakisphosphate), the major storage form of P in seeds, is believed to have a negative impact on nutritional quality. Since breeding for low phytic acid has been proposed for several cereals and legumes, it is important to predict the effects of selection against phytic acid on other major grain components. Experiments were conducted to determine the quantitative relationship between grain phytic acid P, total P, and protein in two winter wheat (Triticum aestivum L.) populations, each consisting of F6 progeny of a double cross. Substantial variation in phytic acid P was observed, with the range in values equal to 30 and 48% of the respective population mean. Observed variation in phytic acid P was highly and positively correlated with variation in grain total P (r 0.93 and 0.96 in Populations 1 and 2, respectively), and with variation in grain protein (r = 0.65 and 0.87, respectively). The dose correlation of phytic acid P with both total P and protein indicates that selection against grain phytic acid would lead to undesirable reductions in both grain total P and protein.

Effect of fermentation on antinutrients, and total and extractable minerals of high and low phytate corn genotypes

“…Khan et al (1991) reported very high levels Results obtained in this study showed a linear relation between phytic acid and total phosphorus. Raboy et al (1991) concluded that, in various seeds, phytic acid positively correlates with total phosphorus, correlation coefficients for some cultivars being greater than 0.90. Factors that affect the total phosphorus content, such as soil, available phosphorus and fertilizers, can influence the phytic acid concentration.…”

Nutritionally Enhanced Staple Food Crops

“…Studies of germplasm collections have revealed significant genetic variation for both seed phytate and/or total P in common bean, lentil, sorghum, soybean, and wheat (Lolas and Markakis 1975;Raboy et al 1991;Israel et al 2006;Kayode et al 2006;Ficco et al 2009;Thavarajah et al 2010;Akond et al 2011). Likewise, researchers have used both chemical and physical mutagens to isolate lp mutants in barley (Raboy 2000;Bowen et al 2006), common bean (Campion et al 2009), maize (Raboy 2000;Badone et al 2010), rice (Larson et al 2000;Raboy 2000;Rutger et al 2004;Liu et al 2007;Kim et al 2008), soybean (Wilcox et al 2000;Walker et al 2006), and wheat (Guttieri et al 2004).…”

Total Phosphorus, Phytate and Phytase Activity of Some Cereals Grown in Albania and used in Non-Ruminant Feed Rations

“…Phytic acid concentrations in seeds from a given species vary because of many factors including cultivars (2,13,17), soil conditions, fertilizer applications (3) and moisture plus other climate factors (9). lott et al (12) have reported that the range for phytic acid in cereal grains is 0.86-1.06%, while Reddy et al (18) have obtained values between 0.50 and 1.89%.…”