Appraisal of studies on induction of peroxidase and associated porphyrin metabolism

Huystee, Robert B. van; Cairns, W.L.

doi:10.1007/bf02860533

Cited by 32 publications

(10 citation statements)

References 91 publications

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“…The number of bands with PO activity was higher than the seven previ-ously reported (4). It is possible that some 'isoenzymes observed were artifacts produced during extraction (32). The activities of most anionic isoenzymes remained stable (Fig.…”

Section: Discussionmentioning

confidence: 67%

Increased Activity of a Cationic Peroxidase Associated with an Incompatible Interaction Between Xanthomonas oryzae pv oryzae and Rice (Oryza sativa)

Reimers¹,

Guo²,

Leach³

1992

Plant Physiol.

109

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Rice (Oryza sativa L.) cultivar Cas 209 carries the gene Xa-10 for resistance to race 2 of Xanthomonas oryzae pv oryzae, the bacterial blight pathogen. When seedling leaves of Cas 209 plants were infiltrated with bacterial cell suspensions of strain PX086RIf (race 2, incompatible), total peroxidase activity in extracts from extracellular spaces increased almost threefold between 16 and 24 hours after inoculation. The increase in total peroxidase activity in extracellular extracts was correlated with the appearance of a 43-kilodalton peroxidase isoenzyme with an isoelectric point of 8.6. Increases in the activities of two anionic peroxidase isoenzymes also were associated with the incompatible interaction. Later during the interactions, total peroxidase activities increased in both compatible (cv Cas 209 infiltrated with race 1, PXO61sm) and control (Cas 209 infiltrated with water) treatments, but final activity levels were less than that observed in the incompatible combination. Similarly, the cationic peroxidase was detected in all three treatments by 48 hours after infiltration, but at reduced levels in compatible and water-infiltrated control treatments relative to the incompatible combination. Accumulation of this peroxidase in extracellular spaces thus may play a role in the defense response in cultivar Cas 209. Rice (Oryza sativa L.) is one of the most important cereal crops worldwide, sustaining more than one-half of the global population (20). Like many plant species, rice employs a diverse array of defenses that minimize losses during pathogen attack. For example, melanin deposition and coordinated increases in peroxidase activities and phenolic compounds are associated with the colonization of rice leaves by Magnaporthe grisea, the blast pathogen (26, 30). Phenolic compounds toxic to Xanthomonas oryzae pv oryzae, the causal agent of bacterial blight, also are found in greater amounts in healthy leaves of resistant cultivars compared to healthy leaves of susceptible cultivars (9). Phytoalexins are thought

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Section: Discussionmentioning

confidence: 67%

Increased Activity of a Cationic Peroxidase Associated with an Incompatible Interaction Between Xanthomonas oryzae pv oryzae and Rice (Oryza sativa)

Reimers¹,

Guo²,

Leach³

1992

Plant Physiol.

109

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“…Most of the higher plants posses a number of different isozymes and/or isoforms of peroxidase. These isoforms can be distinguished by their isoelectric point (pI) or elution profile into three sub-groups viz., anionic, neutral and cationic peroxidase (Van Huystee 1990;Shimyo et al 1993). Similar kinds of increased activities of PO by AVP treated plants have been reported by several researchers (Shankar 1995;Aiyanathan 1995;Kandan et al 2002).…”

Section: Induction Of Systemic Resistance By Avps Against Ulcvmentioning

confidence: 98%

Evaluation of antiviral principles for the induction of systemic resistance in blackgram (Vigna mungo) against Urdbean Leaf Crinkle Virus

Karthikeyan¹,

Doraisamy²,

Rabindran³

et al. 2009

Archives Of Phytopathology And Plant Protection

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Blackgram (Vigna mungo (L.) Hepper) is one of the important pulse crops grown all over the world. Among the virus diseases of blackgram, leaf crinkle caused by Urdbean Leaf Crinkle Virus (Ungrouped/ ULCV) is an important disease which leads to considerable losses depending on the season and type of cultivar cultivated. Pre-inoculation spraying of blackgram plants with leaf extracts of Mirabilis jalapa or Bougainvillea spectabilis was found to reduce the leaf crinkle disease to about 90%. The suppression of the disease by the extract was not only due to direct inhibition of the virus. Pre-treatment of blackgram leaves with 10% leaf extracts of M. jalapa and B. spectabilis as foliar spray induced the accumulation of phenolics and enhanced the activities of peroxidase, phenylalanine ammonialyase and polyphenol oxidase. New isoforms of peroxidase and polyphenol oxidase were also induced by the treatments. The induced defense mechanism might have played a role in reducing the disease.

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“…Phenolics may be associated with the enzyme molecule in portions other than the catalytic centers thus altering the IP (VAN HUYSTEE and CAIRNS 1980). Still, the uniformity of extraction methods and the consistency of results over time permits the comparison of electrofocused bands of activity.…”

Section: Ief Of Extractsmentioning

confidence: 98%

“…Control of IAA concentration in VIVO IS exerted through modulations of synthesis, transport, degradation, and conjugation (BANDURSKI 1980;MARUMA 1986). The degradation of IAA by peroxidases and IAA oxidases has been extensively investigated and variously interpreted (VAN HuYSTEE and CAIRNS 1980). It has been suggested that IAA oxidase and peroxidase activities are due to distinct catalytic sites residing on the same enzyme molecule (GOVE and HoYLE 1975;HOYLE 1972).…”

Section: Introductionmentioning

confidence: 99%

IAA oxidase, peroxidase, and barrier zone formation in red maple

Smith

Shortle

1990

European Journal of Forest Pathology

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Wounding the cambium of red maple {Acer rubrum L.) altered peroxidase lsoenzymes and enhanced the activities of peroxidase and indole-3-acetic acid oxidase in homogenates of adjacent cambial tissue. Four separate experiments were conducted, in May and July in each of two successive years. Wounds made m July caused greater increases in enzyme activity than those made in May. Alterations in peroxidase lsoenzyme pattern were consistent for all experiments. These changes are lntrepretable as aspects of the molecular regulation of barrier zone formation.

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Appraisal of studies on induction of peroxidase and associated porphyrin metabolism

Cited by 32 publications

References 91 publications

Increased Activity of a Cationic Peroxidase Associated with an Incompatible Interaction Between Xanthomonas oryzae pv oryzae and Rice (Oryza sativa)

Increased Activity of a Cationic Peroxidase Associated with an Incompatible Interaction Between Xanthomonas oryzae pv oryzae and Rice (Oryza sativa)

Evaluation of antiviral principles for the induction of systemic resistance in blackgram (Vigna mungo) against Urdbean Leaf Crinkle Virus

IAA oxidase, peroxidase, and barrier zone formation in red maple

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