mFS Medium

mFS (modified Fieldhouse Sasser medium) has been developed to detect black rot in brassica. This medium is complementary to mCS20ABN (C5122) due to some alternative antibiotics. Modifications concern the addition of extra starch and omission of gentamycin.Contaminated seed lots can be detected by dilution plating of the bacterial extract on mCS20ABN and mFS. Suspected isolates are then transferred to YDC. Finally, the identity of the suspected isolates can be determined by a pathogenicity test using brassica seedlings.The colonies of Xanthomonas campestris pv. campestris (Xcc) and Xanthomonas campestris pv. amoraciae (Xca) on mFS medium are pale green to transparant, mucoid and surrounded by a small zone of starch hydrolysis. Colonies are in general smaller than on mCS20ABN and may show remarkable variation in size and may be visible only after 5-6 days. For detailed information about Duchefa’s Phytopathological media have a look at our specialized brochure about this topic. Brochure can be found at the “Brochure section” at the home page of this website.

Filename Language File size
F5123_GB.pdf English 139 KB
F5123_NL.pdf Nederlands 143 KB
F5123_DE.pdf Deutsch 147 KB
F5123_FR.pdf Français 144 KB
F5123_ES.pdf Español 143 KB
F5123_IT.pdf Italiano 142 KB
  • F5123.1000
  • 1 kg
  • € 161.80
  • Order
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