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Journal of Plant Production
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Abd El-Rahman, S. (2007). INDUCTION OF SALICYLIC ACID, CHITINASE AND PHENOLS AGAINST STEM ROT DISEASE IN CHICKPEA PLANTS BY Pseudomonas spp.. Journal of Plant Production, 32(6), 4191-4205. doi: 10.21608/jpp.2007.208759
Saieda S. Abd El-Rahman. "INDUCTION OF SALICYLIC ACID, CHITINASE AND PHENOLS AGAINST STEM ROT DISEASE IN CHICKPEA PLANTS BY Pseudomonas spp.". Journal of Plant Production, 32, 6, 2007, 4191-4205. doi: 10.21608/jpp.2007.208759
Abd El-Rahman, S. (2007). 'INDUCTION OF SALICYLIC ACID, CHITINASE AND PHENOLS AGAINST STEM ROT DISEASE IN CHICKPEA PLANTS BY Pseudomonas spp.', Journal of Plant Production, 32(6), pp. 4191-4205. doi: 10.21608/jpp.2007.208759
Abd El-Rahman, S. INDUCTION OF SALICYLIC ACID, CHITINASE AND PHENOLS AGAINST STEM ROT DISEASE IN CHICKPEA PLANTS BY Pseudomonas spp.. Journal of Plant Production, 2007; 32(6): 4191-4205. doi: 10.21608/jpp.2007.208759

INDUCTION OF SALICYLIC ACID, CHITINASE AND PHENOLS AGAINST STEM ROT DISEASE IN CHICKPEA PLANTS BY Pseudomonas spp.

Article 4, Volume 32, Issue 6, June 2007, Page 4191-4205  XML PDF (538.49 K)
Document Type: Original Article
DOI: 10.21608/jpp.2007.208759
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Author
Saieda S. Abd El-Rahman*
Plant Pathology Research Institute, Agric. Res. Center, Giza – Egypt
Abstract
Two strains of Pseudomonas (P. fluorescens and P. aeruginosa) were used as only seed treatment or seed treatment followed by soil drench to study their effect against chickpea stem rot disease caused by Sclerotinia sclerotiorum (Lib) under greenhouse conditions.
Application of P. aeruginosa and P. fluorescens significantly reduced disease incidence compared with untreated-infected control. However, seed treatment followed by soil drench was more effective and recorded the maximum reduction in disease incidence (85.72 and 71.42% reduction respectively). Also, P. aeruginosa was superior compared with fungicide treatment (Rhizolex-T).
Both P. fluorescens and P. aeruginosa induced the synthesis of salicylic acid (SA), total phenols and chitinase in treated-infected plants with varied amounts at different growth stages of chickpea plants. These increases were much higher and reached to several-fold increase, especially when P. fluorescens and P. aeruginosa were applied as seed treatment followed by soil drench. Besides the systemic resistance effect, the two strains also increased fresh and dry weight and nodulation in treated-infected chickpea plants compared with untreated-infected control.
Keywords
chickpea; induced resistance; S. sclerotiorum; Pseudomonas spp; salicylic acid; chitinase; phenols; nodulation
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