The multifaceted role of aspartate-family amino acids in plant metabolism

Plants represent the major sources of human foods and livestock feeds, worldwide. However, the limited content of the essential amino acid lysine in cereal grains represents a major nutritional problem for human and for livestock feeding in developed countries. Optimizing the level of lysine in cere...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 63(2012), 14 vom: 15. Sept., Seite 4995-5001
1. Verfasser: Kirma, Menny (VerfasserIn)
Weitere Verfasser: Araújo, Wagner L, Fernie, Alisdair R, Galili, Gad
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Review Amino Acids Electron-Transferring Flavoproteins Iron-Sulfur Proteins Isoleucine 04Y7590D77 Aspartic Acid 30KYC7MIAI mehr... Oxidoreductases Acting on CH-NH Group Donors EC 1.5.- electron-transferring-flavoprotein dehydrogenase EC 1.5.5.1 Lysine K3Z4F929H6
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520 |a Plants represent the major sources of human foods and livestock feeds, worldwide. However, the limited content of the essential amino acid lysine in cereal grains represents a major nutritional problem for human and for livestock feeding in developed countries. Optimizing the level of lysine in cereal grains requires extensive knowledge on the biological processes regulating the homeostasis of this essential amino acid as well as the biological consequences of this homeostasis. Manipulating biosynthetic and catabolic enzymes of lysine metabolism enabled an enhanced accumulation of this essential amino acid in seeds. However, this approach had a major effect on the levels of various metabolites of the tricarboxylic acid (TCA) cycle, revealing a strong interaction between lysine metabolism and cellular energy metabolism. Recent studies discussed here have shed new light on the metabolic processes responsible for the catabolism of lysine, as well as isoleucine, another amino acid of the aspartate-family pathway, into the TCA cycle. Here we discuss progress being made to understand biological processes associated with the catabolism of amino acids of the aspartate-family pathway and its importance for optimal improvement of the nutritional quality of plants 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Review 
650 7 |a Amino Acids  |2 NLM 
650 7 |a Electron-Transferring Flavoproteins  |2 NLM 
650 7 |a Iron-Sulfur Proteins  |2 NLM 
650 7 |a Isoleucine  |2 NLM 
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650 7 |a Aspartic Acid  |2 NLM 
650 7 |a 30KYC7MIAI  |2 NLM 
650 7 |a Oxidoreductases Acting on CH-NH Group Donors  |2 NLM 
650 7 |a EC 1.5.-  |2 NLM 
650 7 |a electron-transferring-flavoprotein dehydrogenase  |2 NLM 
650 7 |a EC 1.5.5.1  |2 NLM 
650 7 |a Lysine  |2 NLM 
650 7 |a K3Z4F929H6  |2 NLM 
700 1 |a Araújo, Wagner L  |e verfasserin  |4 aut 
700 1 |a Fernie, Alisdair R  |e verfasserin  |4 aut 
700 1 |a Galili, Gad  |e verfasserin  |4 aut 
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