Plants defense mechanisms in response to wounding

Jadwiga Szczegielniak

Department of Plant Biochemistry, Institute Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5a Str, 02-106 Warsaw, Poland

Plants respond to mechanical wounding or herbivore attack not only in damaged tissue (local response) but also at distal site of wounding (systemic response). The plant hormone jasmonic acid (JA) and its methyl ester (MeJA), collectively referred to as jasmonates, represent the well characterized class of endogenous signals involved in long-distance defense response. Other components are implicated in these signaling pathways including: systemin, oligosaccharides, reactive oxygen species, abscisic acid and ethylene. Jasmonic acid-dependent and –independent wound signal transduction pathways have been identified and well characterized in Solanaceae and Arabidopsis thaliana. Reversible protein phosphorylation regulates both JA-dependent and –independent wound signaling pathways. Some of the specific for plants calcium dependent protein kinases (CDPKs) are involved in wound signal transduction. ZmCPK11 is a wound-responsive maize CDPK. In leaves, kinase activity and ZmCPK11 mRNA accumulation were stimulated by wounding. The level of ZmCPK11 is also increased in noninjured neighboring leaves. The results suggest that the maize protein kinase is involved in a systemic response to wounding. (Szczegielniak i inni, 2005). The recent results demonstrate that ZmCPK11 is essential component of wound induced JA-dependent signaling pathway.

Szczegielniak J, Klimecka M, Liwosz A, Ciesielski A, Kaczanowski S, Dobrowolska G, Harmon AC, Muszyńska G (2005) A wound-responsive and phospholipid-regulated maize calcium-dependent protein kinase. Plant Physiol 139: 1970-1983

• Legal notice:
  

  Copyright (c) Pielaszek Research, all rights reserved.
  The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
  In every case, proper references including Author(s) name(s) and URL of this webpage: https://science24.com/paper/11739 must be provided.

1. Effects of wounding of maize leaves on the contents of 5-methylcytosine in DNA