Important Phytopathogenic organisms

Important Phytopathogenic organisms : 1.Fungi  2.Bacteria 3.Fastidious vascular bacteria (RLO’s) 4.Mollicutes (phytoplasma and spiroplasma) 5.viruses 6.viroids 7.Algae 8.Flagellated protozoans . 1.Fungi: Fungi are eukaryotic, spore bearing, achlorophyllous organisms that generally reproduce sexually and asexually and whose filamentous, branched somatic structures are typically surrounded by cell walls consisting chitin or cellulose or both with many organic […]

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Plant pathogenic bacteria surviving in seeds and planting materials.

Sl.No Disease Bacteria a. Seed 1. Bacterial canker of tomato Clavibacter michiganensis subsp. michiganensis 2. Goss’s bacterial wilt and blight of maize Clavibacter michiganensis  subsp. nebraskensis 3. Bacterial wilt of bean Curtobacterium flaccumfaciens pv. flaccumfaciens 4. Bacterial brown stripe of rice Pseudomonas avenae 5. Bacterial grain rot of rice Pseudomonas glumae 6. Bacterial blight of […]

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Introduction of Fungi In Plant Pathology

Introduction of Fungi In Plant Pathology Fungi are filamentous, multi -cellular organisms, having organized nucleus with nuclear membrane, always lacking of chlorophyll,but presence of cell wall in true fungi and multiplication by production of asexual or sexual spores of vegetative cells. Vegetative structure of fungi: • In the true fungi true cell wall is present […]

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