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The celery-rot bacillus1

Published online by Cambridge University Press:  27 March 2009

H. Wormald
Affiliation:
(Mycological Department, South-Eastern Agricultural College, Wye.)

Extract

1. A bacillus isolated from celery affected by soft-rot reproduced the disease when inoculated into celery plants.

2. Other vegetables commonly grown as garden crops are susceptible to attack by the same organism.

3. The bacillus is very sensitive to the action of antiseptic and germicidal reagents.

4. It is typically bacilliform but under certain conditions may be almost isodiametric and coccus-like, or it may develop into very long filaments.

5. It is capable of growing in a synthetic medium containing a sugar or pectin as the sole carbon compound.

6. Its group number is 221·1113522 and since B. carotovorus Jones proves to be a yellow organism the latter must also be included under that number. The two organisms appear to differ slightly on minor points, e.g. vigour of growth in Uschinsk's solution and on celery extract agar.

7. Like B. carotovorus the celery-rot organism is very sensitive to desiccation.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1917

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