Influence of Temperature Regimes on the Production of 2-MIB and Geosmin by Pseudanabaena galeata and Phormidium ambiguum.

ABSTRACT: The temporal variation of 2-Methylisoborneol (2-MIB) and Geosmin (GSM) production in two filamentous cyanobacteria species, Pseudanabaena galeata and Phormidium ambiguum, was tested under three temperature regimes (20°C, 30°C, and 40°C). The 20°C is considered the ideal cultural temperature for both species. The 2-MIB, GSM, cellular H₂O₂, pigmentation, and total protein were quantified every other day for a 10-day period. Both species showed temporal variation in the measured parameters, but the variations were distinct between the two species. P. galeata showed significant changes in odor compound production at 40°C compared with 20°C and 30°C, recording a maximum 2.4-fold increase of 2-MIB and an 8.2-fold increase of GSM. P. ambiguum showed significant changes at 30

SUBMITTER: Senavirathna MDHJ 

PROVIDER: S-EPMC12580496 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature