Biosynthesis of Indole-3-Acetic Acid by New Klebsiella oxytoca Free and Immobilized Cells on Inorganic Matrices

Figure 1

Scanning electron micrographs. (a) Free cells of Klebsiella oxytoca (3000x). (b) Immobilized cells on 6% SiO₂/TiO₂ (1000x).

(a)

(b)