Microorganisms involved in ergot poisoning is _____

Correct option is C

(c) Claviceps purpurea:
• A fungal pathogen (ascomycete) infecting cereal grains by replacing kernels with ergot bodies (sclerotia).
• Its alkaloid toxins cause ergotism—characterized by convulsions, gangrene, hallucinations, and severe neurological/vascular distress.

(a) Bacillus cereus:
• Leads to food poisoning—vomiting or diarrhea—not ergotism.

(b) Aspergillus flavus:
• Produces aflatoxins causing liver cancers, not ergot alkaloid poisoning.

(d) E. coli:
• Bacterial pathogen causing gastrointestinal illness, unrelated to ergot toxins.