Applied and Environmental Soil Science

Research Article

Characterization of Potential Plant Growth Promoting Rhizobacteria Isolated from Maize (Zea mays L.) in Central and Northern Benin (West Africa)

Table 2

Morphological and biochemical characteristics of rhizobacteria isolated from samples collected in the central and northern Benin.
TestBacillusPseudomonasSerratia
polymyxapantothenticusanthracisthuringiensiscirculanscichoriiputidasyringaemarcescens
Bacteria shapeRodRodRodRodRodRodRodRodRod
Gram reaction+++++−−−−
Catalase production+++++++++
Spore position CentralTerminalCentralCentralCentralndndndnd
Growth on anaerobic condition+++++ndndndnd
Acid from glucose+++++ndndndnd
Gas from glucose+−−−−ndndndnd
Mobility++−+−++++
Delay on glucose−−−−−ndndndnd
Voges-Proskauer+−++−ndndndnd
Indole production −−−−−ndndnd−
Citrate utilization−−−−−ndndnd+
Mannitol utilization ndndndndnd++++
Starch hydrolysis+++++ndndndnd
Casein hydrolysis++++−ndndnd+
Gelatin liquefaction+++++ndndnd+
Lecithin hydrolysis +−++−+−−nd
Urease hydrolysis−−−−−ndndnd−
DNAse activityndndndndndndndnd+
Nitrate reduction++++−ndndndnd
Growth at 45°C++−++ndndndnd
Growth at 55°C−−−−−ndndndnd
Growth at 65°C−−−−−ndndndnd
Fluorescence à 360 nmndndndndnd+++nd
Colony on nutrient agarndndndndndWhitish-ShinyWhit-ShinyWhitish-Shinynd
Oxidase productionndndndndnd++−nd
Glucose fermentationndndndndnd−−−+
Lactose fermentationndndndndnd−−−−
Gas production ndndndndnd−−−−
H2S productionndndndndnd−−−−
Growth on Cétrimide (37°C)ndndndndnd−++nd
Growth on Cétrimide (42°C)ndndndndnd−+−nd
Growth on MacConkeyndndndndndndndnd+
Pigment productionndndndndndndndndRed
+ = positive; − = negative; nd = no determined.