Photoadaptation and diel periodicity of photosynthesis in the dinoflagellate Prorocentrum mariaelebouriae

Harding, Lawrence W.; Meeson, BW; Tyler, MA

doi:10.3354/meps013073

Cited by 48 publications

(45 citation statements)

References 16 publications

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“…Alterations in chlorophyll -Phytoplankton reveal various adaptations in response to altered light intensity, such as changes in in vivo fluorescence yield, pigment content, and photosynthetic capacity (Harris 1980;Lewis et al 1984;Harding et al 1987). Prezelin (1987) stated that for dinoflagellates the photoadaptive response of pigment increase begins within 3 h and full adjustment can occur for some species within 12 h.…”

Section: Resultsmentioning

confidence: 99%

“…It was driven by a variablespeed elect,ric motor; the time for one ro-tation was adjustable from 6 min to >24 h. A multicompartmented wheel providing variable artificial light has been used previously (Harding et al 1983) to provide a diurnal light source for dinoflagellate cultures. Our wheel surface consisted of a 12-section pie-shaped pattern of neutral-density screening ranging from no screen (to represent surface-water light conditions) progressing in both directions through 1, 3, 4, 5, and 6 screens, to an opaque sheet at the opposite end (-2.8% surface PAR due to some light reflection).…”

Section: Methodsmentioning

confidence: 99%

“…In some circumstances, increased light exposure of phyto,-plankton cells entrained in mixed waters may allow for higher productivity. Harding et al (1987) examined photosynthetic per-54 formance in the dinoflagellate Prorocentrum marie-lebouriae.…”

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confidence: 99%

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Effects of variable irradiance on phytoplankton productivity in shallow estuaries

Mallin¹,

Paerl²

1992

Limnology & Oceanography

115

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Primary productivity in estuaries is profoundly affected by water-column mixing which can be attributed to currents, tides, and wind. Mixing in shallow systems has the dual effect of increasing light attenuation in the water column through resuspension of particulate matter, while allowing entrained phytoplankton cells to experience a constantly varying light regime. We investigated the latter effect during a 7-month period in the lower Neuse River, North Carolina, a well-mixed, coastal plain estuary. A rotating light-field simulator was devised to assess phytoplankton productivity while considering the problems of mixing and light attenuation. This technique was compared to a fixed-light level (static) incubation method. We found that constantly varying irradiance stimulated phytoplankton productivity by both reducing photoinhibition and mitigating the growth-limiting effects of turbidity-induced light limitation found under static incubation conditions. Our results demonstrate that static incubations may, at times, significantly underestimate true phytoplankton productivity in shallow, well-mixed aquatic systems.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Effects of variable irradiance on phytoplankton productivity in shallow estuaries

Mallin¹,

Paerl²

1992

Limnology & Oceanography

115

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“…In highly stratified and stable seas such as the oligotrophic gyres this may be the case, yet in more dynamic ocean conditions such as the Beaufort Sea, optical depth has been shown to have no more predictive skill, and sometimes less, than using depth alone (Huot et al, 2013). It is important to note that diel changes in the P-E parameters were not taken into account in this meta-analysis due to a lack of information on the time of sample collection in a significant number of observations, which can be a significant source of variability (MacCaull and Platt, 1977;Prézelin and Sweeney, 1977;Prézelin et al, 1986;Harding et al, 1983;Cullen et al, 1992;Bruyant et al, 2005). However, as noted in the study of Babin and co-authors (1996) such diel and day-to-day variability in the P-E parameters is likely to be far smaller when compared with differences across biogeochemical provinces subject to markedly different environmental forcing.…”

Section: Discussionmentioning

confidence: 99%

Photosynthesis–irradiance parameters of marine phytoplankton: synthesis of a global data set

Bouman

Platt

Doblin

et al. 2018

Earth Syst. Sci. Data

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Abstract. The photosynthetic performance of marine phytoplankton varies in response to a variety of factors, environmental and taxonomic. One of the aims of the MArine primary Production: model Parameters from Space (MAPPS) project of the European Space Agency is to assemble a global database of photosynthesisirradiance (P-E) parameters from a range of oceanographic regimes as an aid to examining the basin-scale variability in the photophysiological response of marine phytoplankton and to use this information to improve the assignment of P-E parameters in the estimation of global marine primary production using satellite data. The MAPPS P-E database, which consists of over 5000 P-E experiments, provides information on the spatiotemporal variability in the two P-E parameters (the assimilation number, P B m , and the initial slope, α B , where the superscripts B indicate normalisation to concentration of chlorophyll) that are fundamental inputs for models (satellite-based and otherwise) of marine primary production that use chlorophyll as the state variable. Qualitycontrol measures consisted of removing samples with abnormally high parameter values and flags were added to denote whether the spectral quality of the incubator lamp was used to calculate a broad-band value of α B . The MAPPS database provides a photophysiological data set that is unprecedented in number of observations and in spatial coverage. The database will be useful to a variety of research communities, including marine ecologists, Published by Copernicus Publications.

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“…Thus, diurnal variability in algal photosynthetic performance had to be taken into consideration to avoid overestimates of DPP (Harding et al 1981). This was done using the diurnality of α, employing the results of Harding et al (1981Harding et al ( , 1983, and Smith et al (1989). According to their results, DPP would be overestimated by 16%, so the values were corrected accordingly.…”

Section: Methodsmentioning

confidence: 99%

Bio-optical modelling of primary production in the SW Finnish coastal zone, Baltic Sea: fast repetition rate fluorometry in Case 2 waters

Raateoja¹,

Seppälä²,

Kuosa³

2004

Mar. Ecol. Prog. Ser.

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Photoadaptation and diel periodicity of photosynthesis in the dinoflagellate Prorocentrum mariaelebouriae

Cited by 48 publications

References 16 publications

Effects of variable irradiance on phytoplankton productivity in shallow estuaries

Effects of variable irradiance on phytoplankton productivity in shallow estuaries

Photosynthesis–irradiance parameters of marine phytoplankton: synthesis of a global data set

Bio-optical modelling of primary production in the SW Finnish coastal zone, Baltic Sea: fast repetition rate fluorometry in Case 2 waters

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