In Vivo Detection of Glutamate in Tomatoes by an Enzyme-Based Electrochemical Biosensor.

The in vivo and on-site detection of key physiology parameters in plants will be of great relevance for precision agriculture and food technology. In this work, a sensitive enzymatic glutamate sensor was successfully developed. To enhance the conductivity and catalytic ability and to fix the glutamate oxidase, Au-Pt nanoparticles were first deposited on screen-printed electrodes, and then carboxylated graphene oxide and carboxylated multiwalled carbon nanotubes were fabricated for the synthesis of the electrode.

[Diversity of Actinomycetes in Wuling Mountain].

Objective: To isolate new actinomycetes for discovering compounds of pharmaceutical importance.

Methods: We collected 280 soil samples from virgin forest in Wuling Mountain. In total 1134 actinomycetes were isolated by culture-dependent method.