Related Experiment Video
Updated: Jul 10, 2026

Isolation and Screening from Soil Biodiversity for Fungi Involved in the Degradation of Recalcitrant Materials
Published on: May 16, 2022
Screening of carbon dioxide-requiring extreme oligotrophs from soil
Nobuyuki Yoshida1, Naoko Ohhata, Yumi Yoshino
1Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma 630-0192, Japan. yoshidan@bs.naist.jp
Abstract:
We screened soil samples for CO(2)-requiring extreme oligotrophs similar to Rhodococcus erythropolis N9T-4, which can grow on a basal salt agar medium without an organic carbon source. From 387 soil samples, three isolates were obtained and identified as Streptomyces spp. by 16S rDNA analysis. The isolates required gaseous CO(2) for growth and grew on a basal salt medium solidified by silica gel. These results suggest that such CO(2)-requiring oligotrophs occur widely in nature.

