Role of myo-inositol phosphate synthase and sucrose synthase genes in plant seed development.
The aim of this review is to highlight the role of myo-inositol phosphate synthase (MIPS), which catalyses the first step in inositol biosynthesis and of sucrose synthase (Sus), an enzyme involved in UDP-glucose formation, the principal nucleoside diphosphate in the sucrose cleavage reaction and in trehalose biosynthesis. These two enzymes are involved in various physiological processes including seed growth and resistance to biotic and abiotic stresses. The study of mutated MIPS and Sus genes in some crops, such as soybean and cotton, has shown that these two proteins are directly involved in embryogenesis. They exhibit several isoforms that are essential for normal seed development. The possible role of both genes in seed development is discussed in this review.
Abid
Ghassen
G
Unit of Tropical Crop Husbandry and Horticulture, Gembloux Agricultural University, Passage des Déportés 2, B-5030 Gembloux, Belgium. abid.g@fsagx.ac.be
Silue
Souleymane
S
Muhovski
Yordan
Y
Jacquemin
Jean-Marie
JM
Toussaint
André
A
Baudoin
Jean-Pierre
JP
D000595:Amino Acid Sequence; D018506:Gene Expression Regulation, Plant; D005964:Glucosyltransferases / Q000235:genetics / Q000378:metabolism*; D003368:Gossypium / Q000196:embryology / Q000378:metabolism; D007294:Inositol / Q000378:metabolism; D008969:Molecular Sequence Data; D007296:Myo-Inositol-1-Phosphate Synthase / Q000235:genetics / Q000378:metabolism*; D010802:Phylogeny; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D010944:Plants / Q000196:embryology / Q000378:metabolism*; D030821:Plants, Genetically Modified / Q000196:embryology / Q000378:metabolism*; D012639:Seeds / Q000378:metabolism*; D013025:Glycine max / Q000196:embryology / Q000378:metabolism
D010940:Plant Proteins; D007294:Inositol; D005964:Glucosyltransferases; C022699:sucrose synthase; D007296:Myo-Inositol-1-Phosphate Synthase