RT Journal Article
T1 Shaping colour changes in a biofilm-forming cyanobacterium by modifying the culture conditions
A1 Prieto Lamas, Beatriz
A1 Vázquez Nión, Daniel
A1 Silva Hermo, Benita María
A1 Sanmartín Sánchez, Patricia
K1 Modelling
K1 Response surface methods
K1 Cyanobacteria
K1 Light and nutrients
AB Cyanobacteria, pioneering microorganisms that create a conditioning layer on substrates and act as a source of nutrients for successive colonization by heterotrophic microbes, are commonly studied in relation to the microbial ecology of stones in indoor and outdoor habitats. They are well known for producing greenish-yellow, bluish-green or occasionally pink or pinkish-orange discolouration of surfaces. Such discolouration may be desirable for integrating new elements in landscapes and could be achieved by inoculating surfaces with cyanobacteria of a specific colour. In the present study, with the aim of producing cultures of perceptibly different hues, we modelled the colourimetric response of the biofilm-forming cyanobacterium Nostoc sp. PCC 9104 to variations in light intensity (L) and the concentrations of phosphorus (P) and nitrogen (N). The model obtained, which was validated from both mathematical and perceptual perspectives, enables production of cultures of a particular hue, within a range of 18° and with an efficacy of 92%. Coloured cultures of hue between 129° and 147°, corresponding to yellowish-green to bluish-green tones, were obtained by modifying nutrients inputs and the amount of light, without the need to resort to genetic manipulation
PB Elsevier
SN 2211-9264
YR 2018
FD 2018-07
LK http://hdl.handle.net/10347/16752
UL http://hdl.handle.net/10347/16752
LA eng
NO Prieto, B., Vázquez-Nion, D., Silva, B., & Sanmartín, P. (2018). Shaping colour changes in a biofilm-forming cyanobacterium by modifying the culture conditions. Algal Research, 33, 173-181. doi: 10.1016/j.algal.2018.05.010
NO This is the accepted manuscript of the following article: Prieto, B., Vázquez-Nion, D., Silva, B., & Sanmartín, P. (2018). Shaping colour changes in a biofilm-forming cyanobacterium by modifying the culture conditions. Algal Research, 33, 173-181. doi: 10.1016/j.algal.2018.05.010
NO This study was partly financed through grant GRC2014/028 (Xunta de Galicia) and project CGL2016-79778-R (Ministerio de Economía, Industria y Competitividad). D. Vázquez-Nion is financially supported by a postdoctoral contract ED481B/2017/016 (Xunta de Galicia). P. Sanmartín is financially supported by a postdoctoral contract POS-B/ 2016/030 (Xunta de Galicia). The authors thank all the observers who generously agreed to collaborate in the psychophysical study
DS Minerva
RD 24 abr 2026