... 4193 NMR and MS evidences for a random assembled O-specific chain structure in the LPS of the bacterium Xanthomonas campestris pv. Vitians A case of unsystematic biosynthetic polymerization Antonio ... area.This led to 14 possible combinations: (B ẳ b-Rha, A ẳ a- Rha, A ẳ a- Fuc3NAc (1fi2) a- Rha)B A, B– A B A A, B A A, B A A, B A A B A A A, B A A A, B A A A, B A A A, B A A A, B– A A A, B A A A, ... fragments were assignable (the assigned a- Rha being bold):B A B A, B A B– A, B A A A, B A A A, B A A A/ B, A A A, A A B, A A B, B A B, B A A, B A A, A A B (Table 1). In summary, eight of the 14 possible...