The results shown soft rot bacteria of konjac conclude
two biotypes: Pectobacterium carotovora subsp. vcarotovora (P.c.c) and Pectobacterium chrysanthemi (P.ch).
Of which P.ch is mainly pathogenic bacteria (17/24, 71%). Besides, The isolates located at the same region (i.e.
Wuhan and Enshi) can exist two biotypes (P.c.c and P.ch), indicated the infection complexity of konjac soft rot.
Based on 16S rDNA sequences, a phylogenetic tree was obtained, and showed a high of genetic diversity across
24 isolates (Figure 2). This results support the heterogeneous taxonomic structure of the genus Pectobacterium.
The phylogenetic dendrogram included two groups (I and II), Group I (all P.c.c types) was further divided into
two subgroups (Ia and Ib). Group II (all P.ch types) contained 4 subgroups (IIa, IIb, IIc and IId).
The results shown soft rot bacteria of konjac concludetwo biotypes: Pectobacterium carotovora subsp. vcarotovora (P.c.c) and Pectobacterium chrysanthemi (P.ch).Of which P.ch is mainly pathogenic bacteria (17/24, 71%). Besides, The isolates located at the same region (i.e.Wuhan and Enshi) can exist two biotypes (P.c.c and P.ch), indicated the infection complexity of konjac soft rot.Based on 16S rDNA sequences, a phylogenetic tree was obtained, and showed a high of genetic diversity across24 isolates (Figure 2). This results support the heterogeneous taxonomic structure of the genus Pectobacterium.The phylogenetic dendrogram included two groups (I and II), Group I (all P.c.c types) was further divided intotwo subgroups (Ia and Ib). Group II (all P.ch types) contained 4 subgroups (IIa, IIb, IIc and IId).
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