Journal of Plant Physiology & Pathology ISSN: 2329-955X

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Research Article, J Plant Physiol Pathol Vol: 2 Issue: 1

Peroxidase and Polyphenoloxidase Activities as Biochemical Markers for Biocontrol Efficacy in the Control of Tomato Bacterial Wilt

Mohamed A Seleim1*, Kamal A Abo-Elyousr2, Abd-Alal A Mohamed1 and Hanan A Al-Marzoky3
1Department of Plant Pathology, Faculty of Agriculture, Al-Azhar University (Assiut Branch), 71524 Assiut, Egypt
2Department of Plant Pathology, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt
3Agricultural Botany Department, Faculty of Agriculture, Suez Canal University 41522 Ismailia, Egypt
Corresponding author : Mohamed A. Seleim
Department of Plant Pathology, Faculty of Agriculture, Al-Azhar University (Assiut Branch), 71524 Assiut, Egypt
E-mail: [email protected]
Received: January 11, 2014 Accepted: March 04, 2014 Published: March 07, 2014
Citation: Seleim MA, Abo-Elyousr KA, Mohamed AAA, Al-Marzoky HA (2014) Peroxidase and Polyphenoloxidase Activities as Biochemical Markers for Biocontrol Efficacy in the Control of Tomato Bacterial Wilt. J Plant Physiol Pathol 2:1. doi:10.4172/2329-955X.1000117

Abstract

Peroxidase and Polyphenoloxidase Activities as Biochemical Markers for Biocontrol Efficacy in the Control of Tomato Bacterial Wilt

We have studied the effect of certain bioagents for the control of bacterial wilt of tomato under greenhouse and field conditions and the effect of these bioagents in induction of some enzyme activity in planta e.g. Peroxidase (PO) and polyphenoloxidase (PPO). Under greenhouse conditions the effect of Pseudomonas putida and P. fluorescens, and their combination were studied, and we found that both of them reduced the disease 60 and 66.67%, respectively and the combination treatment reduced the disease 53.33%. Also under field conditions P. putida was the best in reduction of the disease followed by the combination and then P. fluorescens. The P. fluorescens treatment recorded the highest percent yield increase in the two trails.

Keywords: Tomato bacterial wilt; Pseudomonas putida; P. fluorescens; Biochemical changes; Induced resistance

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