*3.2.2 Siderophore production*

Six bacterial isolates BDISOB222GaiR (*P. plecoglossicida),* BDISOB45PanP (*Bacillus paramycoides),* BDISOB01MymR (*B. amyloliquefaciens),* BDISOB04KhaP (*P. putida),* BDISOB05MymP (*P. putida*), BDISOB221GaiR (*Pseudomonas sp.)* exposed highest siderophore production. On the opposite, three of them which were BDISOB135SerP (*Bacillus sp.),* BDISO04DinP (*P. putida) and* BDISOB21ChaR (*S. maltophilia)* in the list of lowest siderophore production. Nine of them produced upper-moderate level of siderophore as well as thirteen isolates were released lower-moderate level of siderophore. Sixteen isolates those who produced siderophore including BDISOB219GaiR (*P. taiwanensis)*, BDISOB186KusR (*Pseudomonas sp.),* BDISOB283KisR (*Pseudomonas fluorescens),* BDISOB198HabP (*Seratia plymuthic),* BDISOB54KhuR (*B. gladioli) and* BDISOB21ChaR (*S. maltophilia)* BDISOB198HabP (*Seratia plymuthica),* BDISOB148JoyP (*Seratia marcescens),* BDISOB158ChaR (*Seratia marcescens),* BDISOB148JoyP (*Seratia marcescens),* BDISOB145JoyP (*Seratia marcescens),* BDISOB07FarR (*Seratia nematodiphilia),* BDISOB12FarR (*Seratia marcescens),* BDISOB31MagR (*Seratia marcescens),* BDISOB46GopR (*Seratia marcescens)* and BDISOB70KusR (*Seratia marcescens)* were statistically similar and rest of them were statistically dissimilar (**Table 5** and **Figure 3**).


*Potential Role of Rice Plant Growth Promoting Phylloplane and Rhizospheric Bacteria… DOI: http://dx.doi.org/10.5772/intechopen.99854*

*\* indicated 5% level of significance.*

*Values in columns followed by the same letters indicate no significant differences.*

#### **Table 5.**

*Growth promoting determinants produced by different bacterial isolates antagonistic to* X. oryzae *pv.* oryzae*.*
