Induced Calcite Precipitation by Cyanobacterium <i>Synechococcus</i>

Dittrich, Maria; Müller, Beat; Mavrocordatos, D.; Wehrli, Bernhard

doi:10.1002/aheh.200300486

Cited by 68 publications

(46 citation statements)

References 20 publications

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“…In fact, calcite precipitation induced by primary production is a common, well known feature in alkaline hard-water lakes (Stabel 1986;Dittrich et al 2003).…”

Section: Discussionmentioning

confidence: 99%

Cycling of calcite in hard water lakes of different trophic states

Müller

Wang

Wehrli

2006

Limnology & Oceanography

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Based on oxygen (O 2 ), pH, calcium (Ca 2+ ), and carbonate (CO 22 3 ) sediment pore-water concentration profiles, we compare the benthic dissolution of autochthonous calcite in oligotrophic Lake Lucerne and eutrophic Lake Sempach. Despite their difference in trophic state, the two lakes have similar benthic O 2 regimes because L. Sempach is artificially oxygenated. This peculiarity enabled the study of the direct effect of trophic state on benthic calcite dissolution. Although areal benthic O 2 fluxes did not differ, O 2 penetrated deeper into the sediment of the oligotrophic L. Lucerne, where most organic matter (OM, 96%) was degraded aerobically, whereas in L. Sempach, aerobic and anaerobic decomposition contributed about equal amounts to the biogenic carbon dioxide production. Release rates of bicarbonate from L. Sempach sediments exceeded those of L. Lucerne nearly twofold. The HCO 2 3 : Ca 2+ ratio of benthic fluxes was 3.7 in L. Lucerne compared to 10.3 in L. Sempach, suggesting that in L. Sempach most of the released HCO 2 3 did not originate from calcite dissolution. Furthermore, benthic calcite dissolution in L. Lucerne exceeded that in L. Sempach by two-fold, despite lower pH values in the pore water of L. Sempach. Differences in benthic microbial decomposition of OM and redissolution of calcite crystals are explained by the longer residence time of OM and calcite in the oxic sediment layer of the oligotrophic lake and the larger weight-specific surface area of its smaller autochthonous calcite crystals. We suggest that trophic state and O 2 supply to the sediment are key parameters controlling the cycling of calcite and organic carbon in lakes.

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“…In fact, calcite precipitation induced by primary production is a common, well known feature in alkaline hard-water lakes (Stabel 1986;Dittrich et al 2003).…”

Section: Discussionmentioning

confidence: 99%

Cycling of calcite in hard water lakes of different trophic states

Müller

Wang

Wehrli

2006

Limnology & Oceanography

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“…(11,18), and the specific relationship between various environmental factors, such as temperature and pH conditions, on photosynthesis-induced calcification of cyanobacterial biofilms have not, thus far, been investigated. Temperature changes may alter the rate of abiotic degassing and the rate of biological processes and, hence, precipitation.…”

mentioning

confidence: 99%

Metabolic Microenvironmental Control by Photosynthetic Biofilms under Changing Macroenvironmental Temperature and pH Conditions

Bissett

Reimer

Beer

et al. 2008

Appl Environ Microbiol

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Ex situ microelectrode experiments, using cyanobacterial biofilms from karst water creeks, were conducted under various pH, temperature, and constant-alkalinity conditions to investigate the effects of changing environmental parameters on cyanobacterial photosynthesis-induced calcification. Microenvironmental chemical conditions around calcifying sites were controlled by metabolic activity over a wide range of photosynthesis and respiration rates, with little influence from overlying water conditions. Regardless of overlying water pH levels (from 7.8 to 8.9), pH at the biofilm surface was approximately 9.4 in the light and 7.8 in the dark. The same trend was observed at various temperatures (4°C and 17°C). Biological processes control the calcium carbonate saturation state (⍀) in these and similar systems and are able to maintain ⍀ at approximately constant levels over relatively wide environmental fluctuations. Temperature did, however, have an effect on calcification rate. Calcium flux in this system is limited by its diffusion coefficient, resulting in a higher calcium flux (calcification and dissolution) at higher temperatures, despite the constant, biologically mediated pH. The ability of biological systems to mitigate the effects of environmental perturbation is an important factor that must be considered when attempting to predict the effects of increased atmospheric partial CO 2 pressure on processes such as calcification and in interpreting microfossils in the fossil record.

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“…Various studies in recent years have demonstrated the direct effects of carbonate chemistry shift over the course of 5 cyanobacteria growth (Dittrich et al, 2003;Kranz et al, 2010;Millo et al, 2012;Obst et al, 2009b;Yang et al, 2016). In cases where photosynthesis occurred, it results in the stimulation of cell division and DIC uptake, but no alkalinity changes because no other sources of base are added as follows:…”

Section: Carbonate Chemistry Influenced By Viral Lysis Of Cyanobacteriamentioning

confidence: 99%

Precipitation of Calcium Carbonate Mineral Induced by Viral Lysis of Cyanobacteria

Xu¹,

Peng²,

Bai³

et al. 2018

Preprint

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Abstract. Viruses have been acknowledged as important components of the marine system for the past two decades, but the 10 understanding of their role in the functioning of the geochemical cycle remains poor. Viral induced rupturing of cyanobacteria are theoretically capable of releasing intracellular bicarbonate and inducing the homogeneous nucleation of calcium carbonate, but experimental-based support for viral induced calcification is lacking. In this laboratory study, both water carbonate chemistry and precipitates were monitored during the cyanophage infection and lysis of host cells. Our results show that viral lysis of cyanobacteria can influence the carbonate equilibrium system remarkably and promotes the nucleation and stabilization 15 of carbonate minerals. Amorphous calcium carbonate (ACC) and aragonite were evident in the lysate compared to the brucite precipitate in non-infection cultures implying that a different precipitation process had occurred. Based on the carbonate chemistry change and microstructure of the precipitation, the viral induced calcification may initiate by rapid intracellular calcification because of the unfettered intracellular access of Ca 2+ and react with cytoplasmic alkalinity after the virus attacks and breaks down the cell wall. The experimental results raised here first demonstrate the pathway and result regarding how 20 viruses influence the mineralization of carbonate minerals. Furthermore, our results also imply that viruses play a crucial role in seawater carbonate chemistry and may balance the geochemical element budget within the earth system.

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Induced Calcite Precipitation by Cyanobacterium Synechococcus

Cited by 68 publications

References 20 publications

Cycling of calcite in hard water lakes of different trophic states

Cycling of calcite in hard water lakes of different trophic states

Metabolic Microenvironmental Control by Photosynthetic Biofilms under Changing Macroenvironmental Temperature and pH Conditions

Precipitation of Calcium Carbonate Mineral Induced by Viral Lysis of Cyanobacteria

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