Effects of light quality and irradiance level interactions on short-term pigment response of the red alga Corallina elongate

Algarra, Patricia; Vina, G. de la; Niell, J.

doi:10.3354/meps074027

Cited by 27 publications

(8 citation statements)

References 22 publications

(31 reference statements)

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“…However, alteration of pigment concentrations under different light environments has also been previously shown for Corallina species (e.g. Algarra et al, 1991;Häder et al, 1997;Kim et al, 2013). Thus, whilst it is not possible to differentiate the relative roles of high light-stress and changes in pigment concentrations on the seasonal patterns in photophysiology observed during the present study, it is likely that both components play a governing role.…”

Section: Seasonal Photoacclimation To Irradiancecontrasting

confidence: 38%

Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic

Williamson

Perkins

Yallop

et al. 2018

European Journal of Phycology

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This study characterizes the photoacclimation and photoregulation mechanisms that allow calcified macroalgae of the genus Corallina (Corallinales, Rhodophyta) to dominate rock pool habitats across the NE Atlantic despite the highly variable irradiance regimes experienced. Rapid light curves (RLCs) were performed with pulse amplitude modulation (PAM) fluorometry in situ across a full seasonal cycle in the UK intertidal with C. officinalis and C. caespitosa. Latitudinal comparisons were performed across the full extent of C. officinalis' range in the NE Atlantic (Iceland-northern Spain), and for C. caespitosa in northern Spain. Ex situ RLCs with dark recovery were further employed to assess the optimal, as compared with actual, photophysiology across seasons and latitudes. Corallina species were shown to photoacclimate at seasonal timescales to changing irradiance, increasing light-harvesting during low-light autumn/winter periods and protecting photosystems during high-light summer conditions. Seasonal photoacclimation was achieved through alteration in the number of photosystem (PS) units (PSII and light harvesting antennae) over time. Non-photochemical quenching (NPQ) served as an important photoregulation mechanism utilized by Corallina to prevent or minimize photoinhibition over shorter time scales (seconds-hours), though the efficiency of NPQ was dependent on the seasonal-acclimated state. With increasing latitude the efficiency of photoregulation decreased, representing potential differential photoadaptation of Corallina across species ranges in the NE Atlantic. In contrast, highly conserved inter-specific patterns in photophysiological responses to irradiance were apparent. This study demonstrates the photophysiological mechanisms allowing Corallina to optimize use of the variable irradiance conditions apparent in rock pool environments, when and how they are employed, and their limitations.

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Section: Seasonal Photoacclimation To Irradiancecontrasting

confidence: 38%

Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic

Williamson

Perkins

Yallop

et al. 2018

European Journal of Phycology

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“…Comparable E k can be achieved by different strategies of the algae and may be influenced at different degrees by light amplitude variations. One of the acclimation mechanisms leading to changes in E k is represented by pigmentation change, which is a sensitive indicator for light intensity acclimation processes in Rhodophytes (Cunningham et al 1989, Algarra and Niell 1990, Algarra et al 1991, López-Figueroa et al 1997.…”

Section: Resultsmentioning

confidence: 99%

ACCLIMATION OF PALMARIA PALMATA (RHODOPHYTA) TO LIGHT INTENSITY: COMPARISON BETWEEN ARTIFICIAL AND NATURAL LIGHT FIELDS

Sagert

Schubert

2000

Journal of Phycology

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The acclimation of the photosynthetic apparatus of Palmaria palmata (L.) to light intensity was examined in the field and under laboratory conditions. Algae from 3 different shore levels and from laboratory cultures adapted to 6 different photon flux densities were compared. This was done on the basis of light doses, which were delivered by different light regimes in the field and in the laboratory. Laboratory samples were adjusted to constant photon flux densities between 7 and 569 μmol photons·m−2·s−1 in a 16:8 light:dark photoperiod. Under field conditions the daily amplitudes reached up to approximately 2000 μmol photons·m−2·s−1 within a natural daily light course. Over the course of 14 days the light doses resulting from those different regimes are similar for both treatments. An increasing growth rate per day with increasing light doses was observed in the laboratory. Growth was saturated at 113 mol photons·m−2·14 d−1. Light saturation points (Ek) of photosynthesis increased with increasing light doses for both field and laboratory samples, and all Ek values were significantly related to the growth light dose. A correlation between fresh weight‐related lutein content and growth light dose was found for laboratory samples only, whereas the lutein:chlorophyll a (chl a) ratio was strongly correlated with Ek for laboratory and field samples. The content of chl a and phycoerythrin (PE) per fresh weight decreased significantly with increasing light doses under field conditions. Simultaneously, the PE:chl a ratio increased, whereas this ratio was not influenced by laboratory treatments. The correspondence of Ek values for field and laboratory treatments indicated that they were affected mainly by light dose. However, the variability in pigmentation was mainly dependent on temporal variability in light intensity (the amplitude of variations in incident light).

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“…Pigment synthesis in macroalgae is modulated by both light quantity (1 16,148) and light quality (48, [149][150][151][152]: the photosynthetic pigments respond to variations of the light field that include irradiance, photoperiod and spectral variations (48). Recently, the response of phycobiliproteins to light were reviewed in red algae (152).…”

Section: Effect Of Light Quality and Irradiance On Photosynthetic Pigmentioning

confidence: 99%

Photoecophysiology of Marine Macroalgae

Häder

Figueroa

1997

Photochem & Photobiology

194

109

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Effects of light quality and irradiance level interactions on short-term pigment response of the red alga Corallina elongate

Cited by 27 publications

References 22 publications

Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic

Photoacclimation and photoregulation strategies of Corallina (Corallinales, Rhodophyta) across the NE Atlantic

ACCLIMATION OF PALMARIA PALMATA (RHODOPHYTA) TO LIGHT INTENSITY: COMPARISON BETWEEN ARTIFICIAL AND NATURAL LIGHT FIELDS

Photoecophysiology of Marine Macroalgae

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