Origin and Seed Phenotype of Maize low phytic acid 1-1 and low phytic acid 2-1
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چکیده
منابع مشابه
Origin and seed phenotype of maize low phytic acid 1-1 and low phytic acid 2-1.
Phytic acid (myo-inositol-1, 2, 3, 4, 5, 6-hexakisphosphate or Ins P(6)) typically represents approximately 75% to 80% of maize (Zea mays) seed total P. Here we describe the origin, inheritance, and seed phenotype of two non-lethal maize low phytic acid mutants, lpa1-1 and lpa2-1. The loci map to two sites on chromosome 1S. Seed phytic acid P is reduced in these mutants by 50% to 66% but seed t...
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High phytate content in staple food crops is a major barrier to successful iron biofortification. We have exploited the low phytic acid 1-1 (lpa1-1) mutant of maize to generate transgenic plants with up-to 70 μg/g seed iron through the endosperm-specific overexpression of soybean ferritin, resulting in more than 2-fold improvement in iron bioavailability. The levels of bioavailable seed iron ac...
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Cereal Chem. 82(5):5 17-522 Phytie acid iins'o-inositolI .2.3.4.5.6-hexaki.sphosphate) is the most abundant lorni of phosphorus (P) in cereal grains and is important to grain nutritional qualit y . In [nature rice ( Orv:a rota L) erains, the bulk Of phytic acid P is found in the germ and aleurone layer. deposited primarily as a mixed K/Mg salt. Phosphorus components and minerals were measured i...
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Plant seeds accumulate phosphorus in the form of myo-inositol1,2,3,4,5,6-hexa-kisphosphate, commonly referred to as phytic acid. Phytic acid is found complexed with cationic mineral species in the form of phytate, which is not well digested or absorbed by monogastric species such as humans, poultry, and swine. As a result, soybean [Glycine max (L.) Merr.] has an effective defi ciency of phospho...
متن کاملBarley (Hordeum vulgare L.) low phytic acid 1-1: an endosperm-specific, filial determinant of seed total phosphorus.
Inositol hexaphosphate (Ins P6 or "phytic acid") typically accounts for 75 (± 10%) of seed total phosphorus (P). In some cases, genetic blocks in seed Ins P6 accumulation can also alter the distribution or total amount of seed P. In nonmutant barley (Hordeum vulgare L.) caryopses, ~80% of Ins P6 and total P accumulate in the aleurone layer, the outer layer of the endosperm, with the remainder i...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2000
ISSN: 1532-2548,0032-0889
DOI: 10.1104/pp.124.1.355