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Characterization of Spongospora subterranea f. sp. subterranea, the Cause of Powdery Scab of Potato in Pakistan



Shamim Iftikhar , Fauqia Fahmeed , Iftikhar Ahmad and Abdul Hameed
 
ABSTRACT

Powdery scab of potato is caused by Spongospora subterranea f. sp. subterranea. Current study differentiated the powdery scab from deep-pitted scab, which is closely related to common scab (Streptomyces scabies). Pathogen was characterized by light and electron microscopy. Light microscopy (LM) of spores of raised pustules and galls showed a characteristic spongy and honeycomb-like structure. Whereas, spore like bodies of deep-pitted lesions were rounded to oval compact and dark colored bodies. Scanning electron microscopy (SEM) of spore balls of local isolate of S. subterranea revealed no difference in structure on comparison with spore balls of European isolate. Whereas, spore like bodies of deep-pitted scab showed difference in structure. Bioassay and ELISA tests did not show any correlation of spores of powdery and deep-pitted scab.

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  How to cite this article:

Shamim Iftikhar , Fauqia Fahmeed , Iftikhar Ahmad and Abdul Hameed , 2002. Characterization of Spongospora subterranea f. sp. subterranea, the Cause of Powdery Scab of Potato in Pakistan . Journal of Biological Sciences, 2: 441-443.

DOI: 10.3923/jbs.2002.441.443

URL: https://scialert.net/abstract/?doi=jbs.2002.441.443

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