The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress

Sharma SS, Dietz K-J (2006)
JOURNAL OF EXPERIMENTAL BOTANY 57(4): 711-726.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
Plants exposed to heavy metals accumulate an array of metabolites, some to high millimolar concentrations. This review deals with N-containing metabolites frequently preferentially synthesized under heavy metal stress such as Cd, Cu, Ni, and Zn. Special focus is given to proline, but certain other amino acids and oligopeptides, as well as betaine, polyamines, and nicotianamine are also addressed. Particularly for proline a large body of data suggests significant beneficial functions under metal stress. In general, the molecules have three major functions, namely metal binding, antioxidant defence, and signalling. Strong correlative and mechanistic experimental evidence, including work with transgenic plants and algae, has been provided that indicates the involvement of metal-induced proline in metal stress defence. Histidine, other amino acids and particularly phytochelatins and glutathione play a role in metal binding, while polyamines function as signalling molecules and antioxidants. Their accumulation needs to be considered as active response and not as consequence of metabolic dys-regulation.
Stichworte
heavy metal stress; adaptation; N-containing metabolites; stress defence; amino acids; proline
Erscheinungsjahr
2006
Zeitschriftentitel
JOURNAL OF EXPERIMENTAL BOTANY
Band
57
Ausgabe
4
Seite(n)
711-726
ISSN
0022-0957
eISSN
1460-2431
Page URI
https://pub.uni-bielefeld.de/record/1600176

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Sharma SS, Dietz K-J. The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress. JOURNAL OF EXPERIMENTAL BOTANY. 2006;57(4):711-726.
Sharma, S. S., & Dietz, K. - J. (2006). The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress. JOURNAL OF EXPERIMENTAL BOTANY, 57(4), 711-726. doi:10.1093/jxb/erj073
Sharma, S. S., and Dietz, K. - J. (2006). The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress. JOURNAL OF EXPERIMENTAL BOTANY 57, 711-726.
Sharma, S.S., & Dietz, K.-J., 2006. The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress. JOURNAL OF EXPERIMENTAL BOTANY, 57(4), p 711-726.
S.S. Sharma and K.-J. Dietz, “The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress”, JOURNAL OF EXPERIMENTAL BOTANY, vol. 57, 2006, pp. 711-726.
Sharma, S.S., Dietz, K.-J.: The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress. JOURNAL OF EXPERIMENTAL BOTANY. 57, 711-726 (2006).
Sharma, S. S., and Dietz, Karl-Josef. “The significance of amino acids and amino acid-derived molecules in plant responses and adaptation to heavy metal stress”. JOURNAL OF EXPERIMENTAL BOTANY 57.4 (2006): 711-726.

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