Comparative physiology of Synechococcus and Prochlorococcus: influence of light and temperature on growth, pigments, fluorescence and absorptive properties

Moore, Lisa R.; Goericke, Ralf; Chisholm, Sallie W.

doi:10.3354/meps116259

Cited by 595 publications

(651 citation statements)

References 17 publications

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“…Our results suggest that future alterations in stratification will also play a role in governing phylogeography within the unicellular cyanobacterial populations. The geographical distribution of Synechococcus extended further northwards than that of Prochlorococcus, illustrating the broader temperature range of Synechococcus (Moore et al 1995;Partensky et al 1999a;Peloquin et al 2013). Recently, it was suggested that the ability of Synechococcus spp.…”

Section: Component Sourcementioning

confidence: 99%

Phytoplankton community structure in relation to vertical stratification along a north‐south gradient in the Northeast Atlantic Ocean

Mojica

Poll

Kehoe

et al. 2015

Limnology & Oceanography

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Section: Component Sourcementioning

confidence: 99%

Phytoplankton community structure in relation to vertical stratification along a north‐south gradient in the Northeast Atlantic Ocean

Mojica

Poll

Kehoe

et al. 2015

Limnology & Oceanography

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“…Highlight-adapted genotypes occupy the upper, well-illuminated but nutrient-poor part of the water column whereas lowlight-adapted genotypes are preferentially found at the bottom of the illuminated layer but in a nutrient-rich environment. These ecotypes differ in their optimal light intensity for growth (Moore et al, 1998), pigment content (Moore et al, 1995), light harvesting efficiency, sensitivity to trace metals (Mann, 2002) and nitrogen utilization ability (Moore et al, 2002). Full genome information is available for Prochlorococcus MED4, which experiences growth in high light (HL) waters of the open oceans, and Prochlorococcus MIT9313, which typically grows in low light (LL) environments and is found deeper down in the water column (Rocap et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Effects of high light on transcripts of stress-associated genes for the cyanobacteria Synechocystis sp. PCC 6803 and Prochlorococcus MED4 and MIT9313

Mary

Grossman

et al. 2004

Microbiology

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Cyanobacteria constitute an ancient, diverse and ecologically important bacterial group. The responses of these organisms to light and nutrient conditions are finely controlled, enabling the cells to survive a range of environmental conditions. In particular, it is important to understand how cyanobacteria acclimate to the absorption of excess excitation energy and how stress-associated transcripts accumulate following transfer of cells from low-to high-intensity light. In this study, quantitative RT-PCR was used to monitor changes in levels of transcripts encoding chaperones and stress-associated proteases in three cyanobacterial strains that inhabit different ecological niches: the freshwater strain Synechocystis sp. PCC 6803, the marine high-light-adapted strain Prochlorococcus MED4 and the marine low-light-adapted strain Prochlorococcus MIT9313. Levels of transcripts encoding stress-associated proteins were very sensitive to changes in light intensity in all of these organisms, although there were significant differences in the degree and kinetics of transcript accumulation. A specific set of genes that seemed to be associated with high-light adaptation (groEL/groES, dnaK2, dnaJ3, clpB1 and clpP1) could be targeted for more detailed studies in the future. Furthermore, the strongest responses were observed in Prochlorococcus MED4, a strain characteristic of the open ocean surface layer, where hsp genes could play a critical role in cell survival.

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“…and Synechococcus sp. (Armbrust et al, 1989;Moore et al, 1995;Moore and Chisholm, 1999), and picoeukaryotes (Glover et al, 1987;Jacquet et al, 2001). Our experimental findings once more demonstrate that the pico-phytoplankton growth rates will only be decreased at low irradiances (b10 Amol photons m À2 s À1 ).…”

Section: Light Limitation Experimentsmentioning

confidence: 99%

Physiological responses of three species of marine pico-phytoplankton to ammonium, phosphate, iron and light limitation

Timmermans

Wagt

Veldhuis

et al. 2005

Journal of Sea Research

106

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Physiological responses of three species of marine pico-phytoplankton to ammonium, phosphate, iron and light limitation Timmermans, K.R.; Wagt, B. van der; Veldhuis, M.J.W.; Maatman, A.; de Baar, Henricus Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. AbstractExperiments were conducted with three species of marine pico-phytoplankton: Synechococcus sp. (CCMP 839), Pelagomonas calceolata (CCMP 1756) and Prasinomonas capsulatus (CCMP 1617) in order to collect physiological parameters for pico-phytoplankton to be utilised in Ocean Biogeochemical Climate Models. The main parameters to follow the effects of ammonium, phosphate, iron and light limitation were cell growth rates (A), half saturation constants for growth (K m ), N, P and Fe quota (per cell or per mol C), and photochemical quantum efficiency (F v /F m ).The nitrate and phosphate limitation experiments demonstrated that the small phytoplankton species could grow at low N and P concentrations. K m values were in the micro-molar (NH 4 + ) and sub-micro-molar (PO 4 3À ) range. N and P quota were in the femto-molar range per cell and varied from nutrient-deplete to nutrient-replete conditions. F v /F m values were only adversely affected at the lowest N and P concentrations in these experiments. In the Fe limitation experiments, it was shown that all three species were adversely affected only at extremely low Fe concentrations. Iron chelating agents had to be added to force the species in Fe limitation till ultimately growth stopped. K m values with respect to dissolved Fe were in the femto-molar range. Fe quota were in the low zepto-molar (10 À21 M) range per cell, and varied considerably from Fe limiting to Fe replete growth conditions. F v /F m values diminished only at the lowest iron concentrations. In the light limitation experiments, growth rates and photochemical quantum efficiencies were adversely affected only at irradiance levels below 10 Amol photons m À2 s À1 . These results indicate that the pico-phytoplankton species will hardly ever be completely stopped in their growth by NH 4 + , PO 4 3À, Fe or light (separately) under natural conditions. D

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Comparative physiology of Synechococcus and Prochlorococcus: influence of light and temperature on growth, pigments, fluorescence and absorptive properties

Cited by 595 publications

References 17 publications

Phytoplankton community structure in relation to vertical stratification along a north‐south gradient in the Northeast Atlantic Ocean

Phytoplankton community structure in relation to vertical stratification along a north‐south gradient in the Northeast Atlantic Ocean

Effects of high light on transcripts of stress-associated genes for the cyanobacteria Synechocystis sp. PCC 6803 and Prochlorococcus MED4 and MIT9313

Physiological responses of three species of marine pico-phytoplankton to ammonium, phosphate, iron and light limitation

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