TY - JOUR

T1 - Amino Acid Catabolism in Plants

AU - Hildebrandt, Tatjana M.

AU - Nunes Nesi, Adriano

AU - Araújo, Wagner L.

AU - Braun, Hans Peter

N1 - Funding information: Our research cooperation is supported by the binational science funding program “PROBRAL” of the Deutsche Akademische Austauschdienst (DAAD; funds provided by the Bundesministerium für Bildung und Forschung (BMBF) ) and the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) , Refs: Project-ID PROBRAL #423/14. Research fellowships granted by the National Council for Scientific and Technological Development (CNPq-Brazil) to A.N.N. and W.L.A. are gratefully acknowledged.

PY - 2015/9/15

Y1 - 2015/9/15

N2 - Amino acids have various prominent functions in plants. Besides their usage during protein biosynthesis, they also represent building blocks for several other biosynthesis pathways and play pivotal roles during signaling processes as well as in plant stress response. In general, pool sizes of the 20 amino acids differ strongly and change dynamically depending on the developmental and physiological state of the plant cell. Besides amino acid biosynthesis, which has already been investigated in great detail, the catabolism of amino acids is of central importance for adjusting their pool sizes but so far has drawn much less attention. The degradation of amino acids can also contribute substantially to the energy state of plant cells under certain physiological conditions, e.g. carbon starvation. In this review, we discuss the biological role of amino acid catabolism and summarize current knowledge on amino acid degradation pathways and their regulation in the context of plant cell physiology.

AB - Amino acids have various prominent functions in plants. Besides their usage during protein biosynthesis, they also represent building blocks for several other biosynthesis pathways and play pivotal roles during signaling processes as well as in plant stress response. In general, pool sizes of the 20 amino acids differ strongly and change dynamically depending on the developmental and physiological state of the plant cell. Besides amino acid biosynthesis, which has already been investigated in great detail, the catabolism of amino acids is of central importance for adjusting their pool sizes but so far has drawn much less attention. The degradation of amino acids can also contribute substantially to the energy state of plant cells under certain physiological conditions, e.g. carbon starvation. In this review, we discuss the biological role of amino acid catabolism and summarize current knowledge on amino acid degradation pathways and their regulation in the context of plant cell physiology.

KW - adenosine triphosphate

KW - amino acid catabolism

KW - carbon starvation

KW - energy metabolism

KW - enzyme regulation

UR - http://www.scopus.com/inward/record.url?scp=84960800590&partnerID=8YFLogxK

U2 - 10.1016/j.molp.2015.09.005

DO - 10.1016/j.molp.2015.09.005

M3 - Review article

C2 - 26384576

AN - SCOPUS:84960800590

VL - 8

SP - 1563

EP - 1579

JO - Molecular plant

JF - Molecular plant

SN - 1674-2052

IS - 11

ER -