In the third volume and first issue of Indonesian Journal of Natural Pigments, "Characterization of Tambjamines Pigment from Marine Bacterium Pseudoalteromonas sp. PM2 Indigenous from Alor Island, Indonesia" has been selected as our journal cover. This research paper has been reported by Setiyono et al. on page 16 (DOI: https://doi.org/10.33479/ijnp.2021.03.1.16). In this article, it was highlighted a success isolation of six new yellow-pigmented marine bacteria (strain PS2, PM2, SB11, SB13, SB21, and SB23) from seawater from different sampling sites on Alor Island, Indonesia. The UV−Vis and FTIR spectra of the crude pigment extracts of the six strains showed the characteristics of tambjamines, a group of yellow pigments commonly found in nudibranchs and bryozoans. Based on the analysis of 16S rRNA gene sequences, strain PM2 was closely related to several species in genus Pseudoalteromonas with a similarity of more than 99%. This new finding indicated that in the group of marine bacteria, tambjamine might be only synthesized by members from genus Pseudoalteromonas.

Published: 2021-02-28