Publication:
Environmental Stressors Modulating Seasonal and Daily Carbon Dioxide Assimilation and Productivity in Lessonia spicata

Simple item page
dc.contributor.authorTroncoso, Macarena
dc.contributor.authorFleming, Zoë
dc.contributor.authorFigueroa, Félix L.
dc.contributor.authorKorbee, Nathalie
dc.contributor.authorDurán, Ronald
dc.contributor.authorNavarrete, Camilo
dc.contributor.authorRivera, Cecilia
dc.contributor.authorCelis-Plá, Paula S. M.
dc.date.accessioned2026-10-06T14:57:20Z
dc.date.available2026-10-06T14:57:20Z
dc.date.issued2025
dc.description.abstractCarbon dioxide (CO2) emissions due to human activities are responsible for approximately 80% of the drivers of global warming, resulting in a 1.1 °C increase above pre-industrial temperatures. This study quantified the CO2 assimilation and productivity of the brown macroalgae Lessonia spicata in the central Pacific coast of Chile, across seasonal and daily cycles, under different environmental stressors, such as temperature and solar irradiance. Measurements were performed using an infra-red gas analysis (IRGA) instrument which had a chamber allowing for precise quantification of CO2 concentrations; additional photophysiological and biochemical responses were also measured. CO2 assimilation, along with the productivity and biosynthesis of proteins and lipids, increased during the spring, coinciding with moderate temperatures (~14 °C) and high photosynthetically active radiation (PAR). Furthermore, the increased production of photoprotective and antioxidant compounds, including phenolic compounds, and carotenoids, along with the enhancement of non-photochemical quenching (NPQ), contribute to the effective photoacclimation strategies of L. spicata. Principal component analysis (PCA) revealed seasonal associations between productivity, reactive oxygen species (ROSs), and biochemical indicators, particularly during the spring and summer. These associations, further supported by Pearson correlation analyses, suggest a high but seasonally constrained photoacclimation capacity. In contrast, the reduced productivity and photoprotection observed in the summer suggest increased physiological vulnerability to heat and light stress. Overall, our findings position L. spicata as a promising nature-based solution for climate change mitigation.
dc.description.versionVersión publicada
dc.format.extent22 p.
dc.identifier.citationTroncoso, M., Fleming, Z. L., Figueroa, F. L., Korbee, N., Durán, R., Navarrete, C., Rivera, C., & Celis-Plá, P. S. M. (2025). Environmental Stressors Modulating Seasonal and Daily Carbon Dioxide Assimilation and Productivity in Lessonia spicata. Plants, 14(15), 2341. https://doi.org/10.3390/plants14152341
dc.identifier.doihttps://doi.org/10.3390/plants14152341
dc.identifier.urihttps://hdl.handle.net/11447/11233
dc.language.isoen
dc.subjectCarbon assimilation
dc.subjectEnvironmental stressors
dc.subjectLessonia spicata
dc.subjectPhotosynthetic activity
dc.subjectProductivity
dc.titleEnvironmental Stressors Modulating Seasonal and Daily Carbon Dioxide Assimilation and Productivity in Lessonia spicata
dc.typeArticle
dcterms.accessRightsAcceso abierto
dcterms.sourcePlants
dspace.entity.typePublication

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
plants-14-02341.pdf
Size:
2.73 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
347 B
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Artículos Ingeniería

Implementado por OpenGeek Services