Related Experiment Video
Updated: Jun 16, 2026

Optimization and Utilization of Agrobacterium-mediated Transient Protein Production in Nicotiana
Published on: April 19, 2014
Influence and optimization of growth substrates on indigo formation by a novel isolate Acinetobacter sp. PP-2
Yuanyuan Qu1, Wenqing Pi, Fang Ma
1Key Laboratory of Industrial Ecology and Environmental Engineering, MOE, School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, People's Republic of China.
Abstract:
In this study, a novel indigo-producing bacterial strain PP-2 was isolated from activated sludge. It was identified as Acinetobacter sp. according to phylogenetic similarity of 16S rRNA gene sequence. This isolate was able to produce indigo from indole by utilizing a wide range of aromatic hydrocarbons. The results of SDS-PAGE analysis showed that the enzyme system induced by phenol was more abundant than that induced by other aromatic hydrocarbons. And the effects of metal ions on indigo production were also investigated, which indicated that the activity of cells induced with phenol could be inhibited by 0.5mM Fe(3+). Response surface methodology (RSM) was applied to optimize the process of indigo bio-production. The results exhibited that the maximal yield was achieved with 157.92 mg L(-1) phenol and 205.32 mg L(-1) indole. Under the optimal conditions, the indigo yield and transformation efficiency of indole were 202.92 mg L(-1) and 88%, respectively.
More Related Videos
05:06Characterizing Multidrug Efflux Systems in Acinetobacter baumannii Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System
Published on: January 5, 2024
06:24Generic Protocol for Optimization of Heterologous Protein Production Using Automated Microbioreactor Technology
Published on: December 15, 2017
Related Concept Videos
Bioreactor Controls-III
Microbial Growth Measurement: Indirect Methods
Methods of Medium Optimization
Production of Antibiotics
Designing Growth Media for Bioreactors
Microbial Growth Media