Environmental Effects on Algal Photosynthesis: Temperature

Davison, I. R.

doi:10.1111/j.0022-3646.1991.00002.x

Cited by 614 publications

(479 citation statements)

References 55 publications

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“…Photoinhibition is usually enhanced at high temperatures because PSII, and the thylakoids in general, are temperature sensitive. 23 The same response was also reported on the photosynthetic performance of S. latissima sporophytes unaffected by higher temperature up to 22 • C. 47 The short exposure period (8 h in this study) might account for lack of high-temperature enhancement of photoinhibition. The decline of photosynthesis at 19 • C was, however, observed after 48 h post-cultivation.…”

Section: Discussionsupporting

confidence: 78%

“…Variation in temperature can, therefore, affect the light harvesting efficiency (a, the slope of the initial light-limited region of the photosynthesis-irradiance curve) of phototrophs. 23 The low-temperature limitation of electron transport can cause a reduction in the ability of phototrophs to use light. Consequently, the excess light energy may damage the PSII apparatus resulting in photoinhibition.…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, the excess light energy may damage the PSII apparatus resulting in photoinhibition. 23 Conversely, the thermolabile nature of PSII is related to the reduction in photosynthesis at temperatures above temperature optimum. 24 The thermal stability of PSII effectively determines the upper temperature tolerance of photosynthesis.…”

Section: Introductionmentioning

confidence: 99%

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Photosynthetic response of Arctic kelp zoospores exposed to radiation and thermal stress

Roleda

2009

Photochem Photobiol Sci

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Zoospores of Arctic kelp species, Alaria esculenta, Laminaria digitata and Saccharina latissima were exposed to different temperature (2 • C to 19 • C) and radiation (photosynthetically active radiation (PAR = P), PAR + UV-A (PA), and PAR + UV-A + UV-B (PAB)) conditions in the laboratory. Species-specific responses to the combined effect of light and temperature stress showed sensitivity in the order S. latissima > L. digitata > A. esculenta. The optimum temperature range for photosynthesis in different Arctic kelp species' zoospores was between 7-13 • C, temperatures higher than in the natural environment. Short-term response to increasing temperature was non-lethal while moderate temperature increase had an ameliorating effect on the overall biological effect of UVR; where the lowest photoinhibition was observed at 13 • C under PAB and higher photosynthetic recovery was observed in UVR-pre-exposed zoospores at 7-13 • C compared to 2 • C. Above the temperature optima, continued cultivation under high temperature had a negative impact on the recovery of photoinhibition. The higher capacity for non-photochemical quenching (NPQ) in A. esculenta and L. digitata helped to regulate and protect photosynthesis under light and temperature stress compared to S. latissima. The investigated Arctic kelp species may be able to locally survive under the influence of UVR at a certain range of temperature increase but the southernmost distribution range of the species may shift to higher latitudes; although natural selection may result in genotypes adapted to stressful environment.

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Section: Discussionsupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

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Photosynthetic response of Arctic kelp zoospores exposed to radiation and thermal stress

Roleda

2009

Photochem Photobiol Sci

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“…It was assumed that R. cirrhosa is not nutrient limited, since rooted aquatic macrophytes usually uptake nutrients both from the bottom and from the water column (Short and McRoy, 1984;Thursby and Harlin, 1984;Harlin, 1995), transferring them through different parts of the plant (Brix and Lyngby, 1985). Thus, P max may be assumed to depend mainly on temperature and physiologic adaptation, (Menendez and Peñuelas, 1993) as has been observed in algae (Davison, 1991;Falkowski and LaRoche, 1991). I k is a measure of efficiency in light utilisation.…”

Section: Model Developmentmentioning

confidence: 99%

Modelling growth of Ruppia cirrhosa

Calado

Duarte

2000

Aquatic Botany

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The main objectives of this work were to synthesise information on the autoecology of Ruppia cirrhosa Petagna (Grande) in a mathematical model and to use the model to simulate its growth, production and harvest. Model parameters were allowed to vary as a result of acclimation, following experimental data reported in the literature. Biomass data from Santo André lagoon (SW Portugal) were used to calibrate the model. Validation was carried out with independent data sets from Santo André lagoon and from Tancada lagoon (NE Spain). Model simulations show a reasonable agreement with observed data with a similar biomass temporal dynamics and peaks. Self-shading appears to be an important self-regulating mechanism of biomass growth and production. The results obtained predict an annual net primary production of 361 g DW m −2 well within the estimates based on harvesting techniques (295-589 g DW m −2 ). Model results suggest that controlled harvesting of macrophyte biomass may be carried out without affecting macrophyte real net production, through the reduction of light limitation under the plant canopy.

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“…Studies at subtidal and intertidal sites have shown that temperature can exert tight control on benthic photosynthetic rates, and can lead to seasonal acclimation and/or change in the microphytobenthic community composition (Rasmussen et al 1983, Grant 1986, Blanchard et al 1996, Barranguet et al 1998. Temperature acclimation usually describes phenotypic changes in a community as a response to short-term temperature change, whereas temperature adaptation involves genetic differences in metabolism between communities from different thermal environments (Berry & Bjorkman 1980, Davison 1991. Temperature adaptation in microorganisms has typically been studied in cultures or in sediment slurries placed in benches at well-defined temperatures (Blanchard et al 1996, Isaksen & Jørgensen 1996, Thamdrup & Fleischer 1998.…”

Section: Introductionmentioning

confidence: 99%

Temperature effects on respiration and photosynthesis in three diatom-dominated benthic communities

Hancke¹,

Glud²

2004

Aquat. Microb. Ecol.

122

113

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Short-term temperature effects on respiration and photosynthesis were investigated in intact diatom-dominated benthic communities, collected at 2 temperate and 1 high-arctic subtidal sites. Areal rates of total (TOE) and diffusive (DOE) O 2 exchange were determined from O 2 -microsensor measurements in intact sediment cores in the temperature range from 0 to 24°C in darkness and at 140 µmol photons m -2 s -1 . In darkness, the O 2 consumption increased exponentially with increasing temperature for both TOE and DOE, and no optimum temperature was observed within the applied temperature range. Q 10 was calculated from the linear slope in Arrhenius plots and ranged between 1.7 and 3.3 at the respective sites. The volume-specific rate (R dark,vol ) solely representing the biological temperature response was somewhat stronger, with Q 10 values of 2.6 to 5.2. The Q 10 values were overall not correlated to the in situ water temperature or geographical position. Accordingly, no difference in the temperature acclimation or adaptation strategy of the microbial community was observed. Slurred oxic sediment samples showed a Q 10 of 1.7 and were, hence, lower than estimates based on intact sediment core measurements. This can be ascribed to changes in physical and biological controls during resuspension. Gross photosynthesis was measured with the light-dark shift method at the 2 temperate sites. Both areal (P gross ) and volumetric (P gross,vol ) rates increased with temperature to an optimum temperature at 12 and 15°C, with a Q 10 for P gross of 2.2 and 2.6 for the 2 sites, respectively. The gross photosynthesis response could be categorised as psychrotrophic for both sites and no temperature adaptation was observed between the 2 sites. Our measurements document that temperature stimulates heterotrophic activity more than gross photosynthesis, and that the benthic communities gradually become heterotrophic with increasing temperature. This has implications for C-cycling in shallow water communities experiencing seasonal and diel temperature fluctuations.

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Environmental Effects on Algal Photosynthesis: Temperature

Cited by 614 publications

References 55 publications

Photosynthetic response of Arctic kelp zoospores exposed to radiation and thermal stress

Photosynthetic response of Arctic kelp zoospores exposed to radiation and thermal stress

Modelling growth of Ruppia cirrhosa

Temperature effects on respiration and photosynthesis in three diatom-dominated benthic communities

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