Salicylic Acid and Hydrogen Peroxide in Abiotic Stress Signaling in Plants

SCOTT I.M., DAT J.F., LOPEZ-DELGADO H. & FOYER CH.H. 1999. Salicylic acid and hydrogen peroxide in abiotic stress signaling in plants. Phyton (Horn, Austria) 39 (3): (13) (17). During the 1990's, much evidence has suggested roles for salicylic acid and H2O2 in responses of plants to pathogens. This article reviews recent international research suggesting that these compounds are also involved in responses to abiotic stresses such as extreme temperatures, ozone pollution or UV irradiation. We recently discovered that salicylate applied at low concentrations (1-100 uM) could protect seedlings or cultured microplants against heat-shock. Endogenous levels of salicylic acid and its glucoside have been shown to increase in plants subjected to heat, ozone or UV. Salicylic acid and H2O2 appear to influence each other's levels in plant tissues. Increases in H2O2 occur in plants subjected to many abiotic stresses, but it has not been established to what extent this H2O2 is a symptom or a signal of abiotic stress. Consistent with a signaling role for this compound, some reports have shown that treatment with H2O2 can protect plants against coldor heat-stress, and can induce stress-response genes.

[1]  P. Mullineaux,et al.  Involvement of Superoxide in Signal Transduction: Responses to Attack by Pathogens, Physical and Chemical Shocks, and UV Irradiation , 2019, Causes of Photooxidative Stress and Amelioration of Defense Systems in Plants.

[2]  I. Raskin,et al.  Ultraviolet light and ozone stimulate accumulation of salicylic acid, pathogenesis-related proteins and virus resistance in tobacco , 1994, Planta.

[3]  J. Dat,et al.  Changes in salicylic acid and antioxidants during induced thermotolerance in mustard seedlings , 1998, Plant physiology.

[4]  W. Van Camp,et al.  Defense activation and enhanced pathogen tolerance induced by H2O2 in transgenic tobacco. , 1998, Proceedings of the National Academy of Sciences of the United States of America.

[5]  J. Dat,et al.  Induction of thermotolerance in potato microplants by acetylsalicylic acid and H2O2 , 1998 .

[6]  J. Dat,et al.  Parallel changes in H2O2 and catalase during thermotolerance induced by salicylic acid or heat acclimation in mustard seedlings , 1998, Plant physiology.

[7]  N. Banzet,et al.  Accumulation of small heat shock proteins, including mitochondrial HSP22, induced by oxidative stress and adaptive response in tomato cells. , 1998, The Plant journal : for cell and molecular biology.

[8]  R. Dixon,et al.  A Plant Homolog of the Neutrophil NADPH Oxidase gp91phox Subunit Gene Encodes a Plasma Membrane Protein with Ca2+ Binding Motifs , 1998, Plant Cell.

[9]  J. Draper,et al.  Compromising early salicylic acid accumulation delays the hypersensitive response and increases viral dispersal during lesion establishment in TMV-infected tobacco. , 1997, The Plant journal : for cell and molecular biology.

[10]  J. Dat,et al.  Hydrogen peroxide‐ and glutathione‐associated mechanisms of acclimatory stress tolerance and signalling , 1997 .

[11]  S. Weitzman,et al.  Influence of oxygen radical injury on DNA methylation. , 1997, Mutation research.

[12]  I. Raskin,et al.  Ozone-induced responses in Arabidopsis thaliana: the role of salicylic acid in the accumulation of defense-related transcripts and induced resistance. , 1996, Proceedings of the National Academy of Sciences of the United States of America.

[13]  A. Wagner.  A role for active oxygen species as second messengers in the induction of alternative oxidase gene expression in Petunia hybrida cells , 1995, FEBS letters.

[14]  J. Kuc,et al.  Chemical and biological inducers of systemic resistance to pathogens protect cucumber and tobacco plants from damage caused by paraquat and cupric chloride , 1995 .

[15]  T. K. Prasad,et al.  Evidence for Chilling-Induced Oxidative Stress in Maize Seedlings and a Regulatory Role for Hydrogen Peroxide. , 1994, The Plant cell.

[16]  M. Margis-Pinheiro,et al.  Bean class IV chitinase gene: structure, developmental expression and induction by heat stress , 1994 .

[17]  A. Goldsbrough,et al.  Salicylic acid-inducible binding of a tobacco nuclear protein to a 10 bp sequence which is highly conserved amongst stress-inducible genes. , 1993, The Plant journal : for cell and molecular biology.