PLANT PHYSIOLOGY , Vol 106, Issue 4 1675-1679, Copyright © 1994 by American Society of Plant Biologists
A Salicylic Acid-Binding Activity and a Salicylic Acid-Inhibitable Catalase Activity Are Present in a Variety of Plant Species
P. Sanchez-Casas and D. F. Klessig
Waksman Institute and the Department of Molecular Biology and Biochemistry, Rutgers, The State University of New Jersey, P.O. Box 759, Piscataway, New Jersey 08855
Recently, it has been demonstrated that the salicylic acid (SA)-binding
protein (SABP) from tobacco (Nicotiana tabacum) is a SA-inhibitable
catalase (Z. Chen, H. Silva, D.F. Klessig [1993] Science 262: 1883-1886).
Here we report the presence of SABP and SA-inhibitable catalase activity in
Arabidopsis, tomato, and cucumber. The cucumber SABP has properties similar
to the tobacco SABP, including binding affinity and specificity for SA.