The biosynthesis and metabolism of the aspartate derived amino acids in higher plants

Genetic Enhancement of Grain Quality-Related Traits in Maize

“…O2 also regulates directly or indirectly a number of other non-storage protein genes, including b-32, encoding a type I ribosome-inactivating protein, one of the two cytosolic isoforms of the pyruvate orthophosphate dikinase gene (cyPPDK1), and b-70, encoding a heat shock protein 70 analogue, possibly acting as a chaperonin during PB formation. O2 also regulates the levels of lysine-ketoglutarate reductase (Brochetto-Braga et al, 1992) and aspartate kinase1 (Azevedo et al, 1997). These broad effects suggest that O2 plays an important role in the developing grain as a coordinator of the expression of genes controlling storage protein, and nitrogen (N) and carbon (C) metabolism.…”

Changes in Postharvest Qualities of Stored Fresh Maize (Zea Mays L.) at Tropical Ambient Condition

“…Potassium is a major mineral present which has a good significance in human diet [5]. It is a relatively poor cereal when it comes to the quality of its protein, because it has limiting amounts of two essential amino acids, lysine and tryptophan [6]. Although hundred of maize cultivars exist only limited varieties are commercially grown for human consumption and they include dent corn, flint corn, popcorn, waxy corn and sweet maize [7].…”

Variation in the ureide content of Jack Bean during the reproductive stages in response to nitrate

“…On the other hand, it is important to note that the production of nitrogenous waste by livestock agriculture is a significant environmental concern in terms of pollution of land and water (Kingston-Smith et al, 2006). Amino acids are the most important compounds that contain nitrogen Ferreira et al, 2006;Pompeu et al, 2006;Landry and Delhaye, 2007;Lea and Azevedo, 2007;Varisi et al, 2007) and are incorporated into proteins, which are extremely important for plant metabolism and in the diet of animals (Azevedo et al, 1997;Brennecke et al, 1996;Santos et al, 2006). Plants acquire nitrogen from the soil mainly in the form of nitrate, which in order to be utilized must be reduced to ammonia by the enzymes nitrate reductase and nitrite reductase to be assimilated by the glutamine synthetase/glutamate synthase system (GS/GOGAT) (Medici et al, 2003;Lea and Azevedo, 2006;.…”