The effect of nitrogen deficiency, methionine and inhibitors of methionine metabolism on the DMSP contents of Tetraselmis subcordiformis (Stein)

Gröne, T.; Kirst, G. O.

doi:10.1007/bf00356296

Cited by 89 publications

(43 citation statements)

References 17 publications

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“…A correlation between Met and DMSP synthesis was provided by Gröne and Kirst (1992), who showed that the supplementation of Tetraselmis subcordiformis with 100 µg L −1 Met yielded a 2.6-fold increase in DMSP. For E. huxleyi, DMSO mixing ratios in the stationary growth phase can reach 0.1 pg per cell (Simo et al, 1998).…”

Section: Potential Implications For the Occurrence Of Ch 4 In Oxic Mamentioning

confidence: 99%

Evidence for methane production by the marine algae <i>Emiliania huxleyi</i>

et al. 2016

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Abstract. Methane (CH 4 ), an important greenhouse gas that affects radiation balance and consequently the earth's climate, still has uncertainties in its sinks and sources. The world's oceans are considered to be a source of CH 4 to the atmosphere, although the biogeochemical processes involved in its formation are not fully understood. Several recent studies provided strong evidence of CH 4 production in oxic marine and freshwaters, but its source is still a topic of debate. Studies of CH 4 dynamics in surface waters of oceans and large lakes have concluded that pelagic CH 4 supersaturation cannot be sustained either by lateral inputs from littoral or benthic inputs alone. However, regional and temporal oversaturation of surface waters occurs frequently. This comprises the observation of a CH 4 oversaturating state within the surface mixed layer, sometimes also termed the "oceanic methane paradox". In this study we considered marine algae as a possible direct source of CH 4 . Therefore, the coccolithophore Emiliania huxleyi was grown under controlled laboratory conditions and supplemented with two 13 C-labeled carbon substrates, namely bicarbonate and a position-specific 13 C-labeled methionine (R-S-13 CH 3 ). The CH 4 production was 0.7 µg particular organic carbon (POC) g −1 d −1 , or 30 ng g −1 POC h −1 . After supplementation of the cultures with the 13 C-labeled substrate, the isotope label was observed in headspace CH 4 . Moreover, the absence of methanogenic archaea within the algal culture and the oxic conditions during CH 4 formation suggest that the widespread marine algae Emiliania huxleyi might contribute to the observed spatially and temporally restricted CH 4 oversaturation in ocean surface waters.

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Section: Potential Implications For the Occurrence Of Ch 4 In Oxic Mamentioning

confidence: 99%

Evidence for methane production by the marine algae <i>Emiliania huxleyi</i>

et al. 2016

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“…Continuous sulfate assimilation can take place, while the nitrogen, after a transamination reaction to form DMSP from methionine, will be redistributed to other amino acids (Gage et al 1997). Furthermore, the use of the DMSP pathway could also allocate the nitrogen of methionine to other amino acids, if methionine is present in excess due to protein degradation (Gröne & Kirst 1992). Investigations of the amino-acid composition and assimilation of phytoplankton species indicate that UV-radiation exposure leads to nitrogen limitation, due to a decline in the amount of reducing power (Döhler 1989, Goes et al 1995.…”

Section: Fig 5 Time Course Of (A) Dissolved Dmsp and (B) Dms In Anmentioning

confidence: 99%

Effects of ultraviolet and visible radiation on the cellular concentrations of dimethylsulfoniopropionate (DMSP) in Emiliania huxleyi (strain L)

Slezak¹,

Herndl²

2003

Mar. Ecol. Prog. Ser.

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“…algae (Tumer et al, 1988;Grone and Kirst, 1992) and higher plants (Dacey et al, 1987) may compensate for a limited ability to form betaines by producing more DMSP.…”

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confidence: 99%

Biosynthesis of 3-Dimethylsulfoniopropionate in Wollastonia biflora (L.) DC. (Evidence That S-Methylmethionine Is an Intermediate)

et al. 1994

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The effect of nitrogen deficiency, methionine and inhibitors of methionine metabolism on the DMSP contents of Tetraselmis subcordiformis (Stein)

Cited by 89 publications

References 17 publications

Evidence for methane production by the marine algae <i>Emiliania huxleyi</i>

Evidence for methane production by the marine algae <i>Emiliania huxleyi</i>

Effects of ultraviolet and visible radiation on the cellular concentrations of dimethylsulfoniopropionate (DMSP) in Emiliania huxleyi (strain L)

Biosynthesis of 3-Dimethylsulfoniopropionate in Wollastonia biflora (L.) DC. (Evidence That S-Methylmethionine Is an Intermediate)

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The effect of nitrogen deficiency, methionine and inhibitors of methionine metabolism on the DMSP contents of Tetraselmis subcordiformis (Stein)

Cited by 89 publications

References 17 publications

Evidence for methane production by the marine algae &lt;i&gt;Emiliania huxleyi&lt;/i&gt;

Evidence for methane production by the marine algae &lt;i&gt;Emiliania huxleyi&lt;/i&gt;

Effects of ultraviolet and visible radiation on the cellular concentrations of dimethylsulfoniopropionate (DMSP) in Emiliania huxleyi (strain L)

Biosynthesis of 3-Dimethylsulfoniopropionate in Wollastonia biflora (L.) DC. (Evidence That S-Methylmethionine Is an Intermediate)

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Evidence for methane production by the marine algae <i>Emiliania huxleyi</i>

Evidence for methane production by the marine algae <i>Emiliania huxleyi</i>