Influence of Salicylic Acid on H2O2 Production, Oxidative Stress, and H2O2-Metabolizing Enzymes (Salicylic Acid-Mediated Oxidative Damage Requires H2O2)

Rao, Mulpuri V.; Paliyath, Gopinadhan; Ormrod, D. P.; Murr, Dennis P.; Watkins, Christopher B.

doi:10.1104/pp.115.1.137

Cited by 540 publications

(357 citation statements)

References 50 publications

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“…Several studies reported the effects of SA on the activity of H 2 O 2 -scavenging enzymes; however its role on the regulation of the expression of enzymes responsible for H 2 O 2 production is not well understood. Our results are in accordance with those reported by Rao et al [15], in which SA-enhanced H 2 O 2 levels were related to the increased activity of Cu,Zn-SOD. In addition, Fodor et al [10] also reported an SA-dependent increase in Cu,Zn-SOD activity in tobacco leaves, similar to that observed in uninfected leaves when tobacco was inoculated with tobacco mosaic virus.…”

Section: Effect Of Salicylic Acid On the Expression Of Pinus Pinastersupporting

confidence: 83%

“…More recently, it has been suggested that H 2 O 2 functions upstream rather than, or in addition to, acting downstream of SA, since SA-treated plants showed no differences in catalase or ascorbate peroxidase activity [6]. SA-enhanced H 2 O 2 levels could also be attributed to an increased activity of H 2 O 2 -producing enzymes, as reported for Cu,Zn-superoxide dismutase [15].…”

Section: Introductionmentioning

confidence: 77%

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Salicylic acid up-regulates the expression of chloroplastic Cu, Zn-superoxide dismutase in needles of maritime pine (Pinus pinaster Ait.)

2004

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-Several studies have supported a major role of salicylic acid in modulating plant response against abiotic and biotic stresses, by induction antioxidant capacity. In this work, a full-length cDNA encoding a Cu,Zn -superoxide dismutase was isolated by screening a Pinus pinaster needle cDNA library. The predicted protein of 215 amino acid residues has a molecular mass of 22.1 kDa and exhibits a N-terminal transit peptide, which putatively targets the protein to the chloroplast. Treatment of pine seedlings with salicylic acid resulted in the increase of chloroplastic Cu,Zn superoxide dismutase transcript levels in needles, suggesting a role of this isoform in salicylic acid-mediated H 2 O 2 increase in chloroplasts. Pinus pinaster / acide salicylique / Cu,Zn-SOD chloroplastique

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Section: Effect Of Salicylic Acid On the Expression Of Pinus Pinastersupporting

confidence: 83%

Section: Introductionmentioning

confidence: 77%

Salicylic acid up-regulates the expression of chloroplastic Cu, Zn-superoxide dismutase in needles of maritime pine (Pinus pinaster Ait.)

2004

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“…In addition, generalized soluble or wall-bound POD activity increases in other plant species in response to wounding (Birecka and Miller, 1974;Kawaoka et al, 1994), pathogens (Bashan et al, 1987), salicylic acid (Rao et al, 1997), and jasmonates (Thaler et al, 1996;Moore et al, 2003). While JA and insect wounding have been found to elevate total soluble POD activity similarly (Choi et al, 1994;Tamari et al, 1995;Zhang and Baldwin, 1997), this study is among the first to suggest that various peroxidase isozymes may be differentially responsive to JA or other signals (Buzi et al, 2004) and the first to find insectresponsive POD isoforms.…”

Section: Discussionmentioning

confidence: 57%

Differential Activity of Peroxidase Isozymes in Response to Wounding, Gypsy Moth, and Plant Hormones in Northern Red Oak (Quercus rubra L.)

Allison

Schultz

2004

J Chem Ecol

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Abstract-We measured total peroxidase activity and the activities of peroxidase isoforms in leaves of red oak (Quercus rubra L.) seedlings exposed to wounding and plant hormones in the greenhouse. Activity of specific peroxidase isoforms was induced differentially by gypsy moth wounding, mechanical wounding, and the wound-associated plant hormone jasmonic acid. Activity of one isoform was enhanced modestly by treatment with salicylate. A study of peroxidase activity in naturally occurring galls elicited on red oak leaves by 12 hymenopteran and dipteran insect species found 16 POD isoforms, 11 of which were differentially induced or suppressed in galls compared with leaves. In both studies, total peroxidase activity as measured spectrophotometrically was not clearly related to activity of these isoforms. These results indicate that red oak seedlings and trees may respond specifically to wounding, particular insects, and plant signals through changes in the activities of individual isozymes.

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“…Low concentrations of especially H 2 O 2 are known to act as a signal molecule initiating several protective resistance mechanisms against pathogens, chilling and heat stress (Lamb, 1994). If H 2 O 2 accumulation induced by SA was excessive, serious oxidative stress can be occurred and unrecoverable membrane damage can be appeared (Rao et al 1997). We conclude that the increasing CAT activity can be considered as an important mechanism in the cell defence strategy.…”

Section: Effects Of Cold and Sa + Cold On Antioxidant Enzyme Activitiesmentioning

confidence: 92%

Exogenous salicylic acid alleviates cold damage by regulating antioxidative system in two barley (Hordeum vulgareL.) cultivars

Mutlu

Atıcı

Nalbantoğlu

et al. 2016

Frontiers in Life Science

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In this work, the time-dependent effect of exogenous salicylic acid (SA) applied before cold stress was investigated on the regulation of antioxidative respond mechanisms in two barley (Hordeum vulgare L.) cultivars (Akhisar and Tokak) differed in cold tolerance. SA (0.1 mM) was applied to 7-days old barley seedlings growing under control conditions (20/18°C). After this application, the seedlings were transferred to cold conditions (7/5°C) at different times (7, 14, 21 and 28 days) for 3 days. Then, the contents of malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ) and the activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX) were determined in the leaves (control, cold and SA + cold) from the seedlings harvested at 10, 17, 24 and 31 days. Moreover, the effect of cold stress was evaluated on the endogenous SA level at the both cultivars by comparing to control plants. The MDA content increased in the cold treatment while it decreased in the SA treatment at all the days studied at the both cultivars. The SA + cold treatment could have a variable effect on H 2 O 2 content at the tolerant barley (Tokak) while decreased its content at the sensitive cultivar (Akhisar). The SA + cold treatment could increase the activities of POX and SOD at both cultivars, but it increased the CAT activity at the tolerant cultivar while decreased at the sensitive cultivar. In addition, the content of endogenous SA was decreased by cold stress at all the days studied at the barley cultivars as compared to control plants. The results show that the SA treatment could be effective on the regulation of the parameters studied at cold conditions until 31 days after SA application, and the importance of exogenous SA treatment before cold stress. It was concluded that exogenous and endogenous SA could play an ameliorating role on cold tolerance by regulating reactive oxygen species and the activities of antioxidative enzymes in both cold-sensitive and cold-tolerant cultivars of barley. ARTICLE HISTORY

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Influence of Salicylic Acid on H2O2 Production, Oxidative Stress, and H2O2-Metabolizing Enzymes (Salicylic Acid-Mediated Oxidative Damage Requires H2O2)

Cited by 540 publications

References 50 publications

Salicylic acid up-regulates the expression of chloroplastic Cu, Zn-superoxide dismutase in needles of maritime pine (Pinus pinaster Ait.)

Salicylic acid up-regulates the expression of chloroplastic Cu, Zn-superoxide dismutase in needles of maritime pine (Pinus pinaster Ait.)

Differential Activity of Peroxidase Isozymes in Response to Wounding, Gypsy Moth, and Plant Hormones in Northern Red Oak (Quercus rubra L.)

Exogenous salicylic acid alleviates cold damage by regulating antioxidative system in two barley (Hordeum vulgareL.) cultivars

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