Peroxidase activity and polyamine changes in response to ozone and simulated acid rain in Aleppo pine needles

Scalet, Mario

doi:10.1016/0098-8472(95)00001-3

Cited by 90 publications

(37 citation statements)

References 19 publications

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“…They also have important roles in growth, development, lignifications and subarization processes [49]. Increasing POX activities as a result of stress have been reported in C 3 tomato and C 4 maize [50,51]. In agreement with these results, the POX activity of C. gynandra and C. spinosa were enhanced by drought stress.…”

Section: Discussionsupporting

confidence: 60%

Comparison of ROS formation and antioxidant enzymes in Cleome gynandra (C4) and Cleome spinosa (C3) under drought stress

et al. 2012

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a b s t r a c tDifferences between antioxidant responses to drought in C 3 and C 4 plants are rather scanty. Even, we are not aware of any research on comparative ROS formation and antioxidant enzymes in C 3 and C 4 species differing in carboxylation pathway of same genus which would be useful to prevent other differences in plant metabolism. With this aim, relative shoot growth rate, relative water content and osmotic potential, hydrogen peroxide (H 2 O 2 ) content and NADPH oxidase (NOX) activity, antioxidant defence system (superoxide dismutase (SOD), catalase (CAT), peroxidase (POX), ascorbate peroxidase (APX), glutathione reductase (GR) enzymes and their isoenzymes), CAT1 mRNA level, and lipid peroxidation in seedlings of Cleome spinosa (C 3 ) and Cleome gynandra (C 4 ) species of Cleome genus exposed to drought stress for 5 and 10 day (d) were comparatively investigated. Constitutive levels of antioxidant enzymes (except SOD) were consistently higher in C. spinosa than in C. gynandra under control conditions. CAT1 gene expression in C. spinosa was correlated with CAT activity but CAT1 gene expression in C. gynandra at 10 d did not show this correlation. Drought stress caused an increase in POX, CAT, APX and GR in both species. However, SOD activity was slightly decreased in C. gynandra while it was remained unchanged or increased on 5 and 10 d of stress in C. spinosa, respectively. Parallel to results of malon dialdehyde (MDA), H 2 O 2 content was also remarkably increased in C. spinosa as compared to C. gynandra under drought stress. These results suggest that in C. spinosa, antioxidant defence system was insufficient to suppress the increasing ROS production under stress condition. On the other hand, in C. gynandra, although its induction was lower as compared to C. spinosa, antioxidant system was able to cope with ROS formation under drought stress.

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Section: Discussionsupporting

confidence: 60%

Comparison of ROS formation and antioxidant enzymes in Cleome gynandra (C4) and Cleome spinosa (C3) under drought stress

et al. 2012

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“…l), which is similar to the findings in rice, in which putrescine levels are not induced by salt stress (Krishnamurthy and Bhagwat, 1989). Conversely, putrescine biosynthesis was induced by many stresses, such as ozone (Langebartels et al, 1991;Scalet et al, 1995;Tuomainen et al, 1996), wounding (Yoza et al, 1996), osmotic stress (Flores and Galston, 1984), heat shock (Roy and Ghosh, 1996), oxygen deficiency (Reggiani et al, 1990), and K+ deficiency (Watson and Malmberg, 1996) in other species. Putrescine is known to specifically interact with proteins, nucleic acids, and membranes (Young and Galston, 1983).…”

Section: Discussionsupporting

confidence: 75%

Constitutively Elevated Levels of Putrescine and Putrescine-Generating Enzymes Correlated with Oxidant Stress Resistance in Conyza bonariensis and Wheat

Muller

Zhang

et al. 1997

Plant Physiology

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Oxidant stress resistance in Conyza bonariensis and wheat (Triticum aestivum) has been correlated with high levels of antioxidant enzyme activities. Additionally, external oxidant stresses can increase a plant's levels of the enzymes of polyamine biosynthesis and polyamines, especially putrescine. We investigated the constitutive relationships between putrescine, putrescine-generating enzymes, and oxidant stress resistance in wheat and C. bonariensis. Putrescine was Constitutively elevated (2.5- to 5.7-fold) in 2-week-old-resistant wheat and C. bonariensis biotypes, which correlated with a 10- to 15-fold increase in paraquat oxidant resistance. Arginine and ornithine decarboxylase activities doubled, along with higher putrescine levels in resistant C. bonariensis. The variations in levels of putrescine and arginine and ornithine decarboxylase activities paralleled the constitutive variation of antioxidant enzymes, as well as oxidant resistance. Higher levels of both putrescine and antioxidant enzyme activities occurred during a peak of oxidant resistance at 10 weeks, when paraquat resistance in C. bonariensis plants is >50-fold greater than in the sensitive biotype. Application of 100 [mu]M putrescine can double oxidant-stress resistance in the resistant C. bonariensis. Putrescine may play an important role in contributing to the base level of oxidant resistance found at the nonpeak period.

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“…In tolerant plant species, POD activity was found to be higher, enabling plants to protect themselves against oxidative stress [31]. In the present study, compared to the control, the addition of 0.3 or 0.6 mg·kg -1 Cd caused an increase in the level of POD by 84.74% and 44.11%, respectively.…”

Section: Effects Of Cadmium Application On Changes Of Leaf Chlorophylmentioning

confidence: 55%

The Uptake, Accumulation, and Toxic Effects of Cadmium in Barnyardgrass (Echinochloa crus-galli)

Peng¹,

Chen²,

Wu³

et al. 2017

Pol. J. Environ. Stud.

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Peroxidase activity and polyamine changes in response to ozone and simulated acid rain in Aleppo pine needles

Cited by 90 publications

References 19 publications

Comparison of ROS formation and antioxidant enzymes in Cleome gynandra (C4) and Cleome spinosa (C3) under drought stress

Comparison of ROS formation and antioxidant enzymes in Cleome gynandra (C4) and Cleome spinosa (C3) under drought stress

Constitutively Elevated Levels of Putrescine and Putrescine-Generating Enzymes Correlated with Oxidant Stress Resistance in Conyza bonariensis and Wheat

The Uptake, Accumulation, and Toxic Effects of Cadmium in Barnyardgrass (Echinochloa crus-galli)

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