title: Low phytic acid 1 mutation in maize modifies density, starch properties, cations, and fiber contents in the seed.
abstract: Monogastric animals are unable to digest phytic acid, so it represents an antinutritional factor and also an environmental problem. One strategy to solve this problem is the utilization of low phytic acid (lpa) mutants that accumulate low levels of phytic P and high levels of free phosphate in the seeds; among the lpa maize mutants lpa1 exhibited the highest reduction of phytic acid in the seed. This study indicated that the low phytic acid mutations exerted pleiotropic effects not directly connected to the phytic acid pathway, such as on seed density, content of ions, and the antioxidant compounds present in the kernels. Furthermore some nutritional properties of the flour were altered by the lpa1 mutations, in particular lignin and protein content, while the starch does not seem to be modified as to the total amount and in the amylose/amylopectin ratio, but alterations were noticed in the structure and size of granules.
authors: Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy.
authors: Michela
authors: M
authors: Landoni
authors: Francesco
authors: F
authors: Cerino Badone
authors: Nabil
authors: N
authors: Haman
authors: Alberto
authors: A
authors: Schiraldi
authors: Dimitrios
authors: D
authors: Fessas
authors: Valentina
authors: V
authors: Cesari
authors: Ivan
authors: I
authors: Toschi
authors: Roberta
authors: R
authors: Cremona
authors: Chiara
authors: C
authors: Delogu
authors: Daniela
authors: D
authors: Villa
authors: Elena
authors: E
authors: Cassani
authors: Roberto
authors: R
authors: Pilu
mesh_terms: D002412:Cations / Q000737:chemistry; D005433:Flour / Q000032:analysis; D009154:Mutation; D010710:Phosphates / Q000737:chemistry; D010833:Phytic Acid / Q000737:chemistry*; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics*; D012639:Seeds / Q000737:chemistry*; D013213:Starch / Q000737:chemistry; D003313:Zea mays / Q000737:chemistry* / Q000235:genetics*
chemical_list: D002412:Cations; D010710:Phosphates; D010940:Plant Proteins; D010833:Phytic Acid; D013213:Starch