Effects of sulphur pollutants on the growth of Sphagnum species

Ferguson, Paul W.; Lee, J.A.; Bell, John

doi:10.1016/0013-9327(78)90129-5

Cited by 107 publications

(53 citation statements)

References 23 publications

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“…(Baxter, Emes Sc Lee, 1991). In this paper a similar explanation is presented for the apparent enhanced 'tolerance' of S. recurvum to bisulphite, a phenomenon observed by previous workers (Ferguson, 1979;Ferguson et al, 1978), but so far not fully explained. Differences in response to HSO^" ions of S. recurvum and 5. cuspidatum plants from the bog surface and minerotrophic iagg zones of remote Welsh and Cumbrian bogs, and from the polluted S. Pennines are reported.…”

Section: Introductionsupporting

confidence: 76%

“…We have shown previously that the loss of HSO3" from the bathing solution is primarily due to the oxidation of this ionic species and not a factor of SO.,(g) desorption from solution (Baxter et al, 19896)". Ten days after initial HSO.j" treatment, S. recurvum from the bog surface exhibited symptoms of tissue damage and pigment degradation similar to that estimated quantitatively by Ferguson et al, (1978), and Ferguson (1979), The darker green, more robust Sphagnum from the drainage channel habitat, showed no visible signs of damage at this high HSOg' concentration.…”

Section: Butterhurti Flou\ Cumbriasupporting

confidence: 62%

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Transition metals and the ability of Sphagnum to withstand the phytotoxic effects of the bisulphite ion

1991

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SUMMARY Sphagnum cuspidatum Ehrh. (ex Hoffm.) and Sphagnum recurvum P. Beauv. were coHected from the bog surface and minerotrophic lagg zones of two relatively remote 'unpolluted ' sites \n Northern England and North Wales, and two 'polluted ' sites in the H. Pennines. In addition, surface peat and surface water samples were taken adjacent to the sample points.Sphagnum recurvum from mire surfaces in the S. Pennines and drainage channels at remote sites was exposed to the phytotoxic bisulphite ion (HSO^ ), which subsequently rapidly disappeared from the bathmg solution (< 6 b). When the same species, taken from mire surfaces at remote sites, was exposed to HSO^ , a much slower disappearance of this ion occurred. Sphagnum cuspidatum from remote sites showed a similar response. Both became bleached and eventually died. Sphagnum recurvum, growing in the drainage channel at the remote site showed a higber extracellular concentration of transition metals on cation exchange sites; a consequence of a higher concentration of the same ions m these telluric waters. At tbe S. Pennine sites transition metal concentrations in the surface peat were high. Here, as in tbe drainage cbannels at tbe remote sites, the extraceliuiar metal concentrations imparted to the moss the ability rapidly to remove HSO3 from the growth medium.

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Section: Introductionsupporting

confidence: 76%

Section: Butterhurti Flou\ Cumbriasupporting

confidence: 62%

Transition metals and the ability of Sphagnum to withstand the phytotoxic effects of the bisulphite ion

1991

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“…Field studies in the southern Pennines, UK, have shown that high influxes of S (as SO 2 , HSO 3 2-and SO 4 2-) can dramatically reduce the occurrence and growth of Sphagnum (Tallis, 1964;Ferguson et al ., 1978). Inter-and intra-specific differences in the growth responses of Sphagnum species to HSO 3 2-and SO 4 2-additions have also been observed (Ferguson & Lee, 1980;Austin & Wieder, 1987;Lee et al ., 1990).…”

Section: Introductionmentioning

confidence: 99%

Growth, production and interspecific competition in Sphagnum: effects of temperature, nitrogen and sulphur treatments on a boreal mire

2004

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Summary• Growth and production of Sphagnum balticum and interspecific competition between S. balticum and either Sphagnum lindbergii or transplanted Sphagnum papillosum , were studied in a 4-yr field experiment in a poor fen.• Temperature and influxes of nitrogen (N) and sulphur (S) were manipulated in a factorial design. The mean daily air temperature was increased by 3.6 ° C with glasshouse enclosures. Nitrogen loads were increased 15-fold and S loads seven-fold compared with the natural loads up to influxes observed during the 1980s in southwestern Sweden.• Production of S. balticum decreased with increasing temperature and N-influx. The N treatment significantly reduced the incremental length of S. balticum , and this reduction was reinforced with time (24% in the first year to 51% in the final year). The area covered by S. lindbergii changed with time in all treatments and S. papillosum area increased significantly in the temperature-treated plots.• Growth, production and competitive patterns change if the environmental conditions change. Increased N deposition and raised temperature may transform mires currently dominated by Sphagnum into vascular-plant-dominated mires.

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“…There is evidence that bryophyte species differ in tbeir sensitivity to sulphur pollutants (see e.g. Turk and Wirth, 1975 ;Ferguson et al, 1978), but there is as yet no con\-incing evidence to explain the physiological basis for sucb differences in sensitivity. Such studies are perhaps best conducted on intraspecific differences in pollution tolerance.…”

mentioning

confidence: 99%

Effects of the bisulphite ion on growth and photosynthesis in Sphagnum cuspidatum Hoffm.

1989

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S U M M A R ySboots of Sphagnum cuspidatum Hoffm. were collected from two sites: one, a relatively unpolluted site in N. Wales, remote from pollution sources and tbe other, a grossly polluted site in the South Pennines.* Material Irom both sites vvas grown in the laboratory and exposed to artificial rainwater solution with and witbout bisulpbite (HSO,, ) amendment (01 mM). Effects of exposure to HSO,, for up to 21 days on growth, photosynthesis, •^blorophyll a fluorescence and chlorophyll concentrations were studied in the two Spbagiium populations.Application of HSO., produced significantly less than maximum growtb in Spliagnum from botb sites. Tbis effect was far greater, however, in tbe material from the unpolluted Welsb site.Photosynthesis in the Welsh material treated with HSO.j" decreased steadily with time; after 21 days of *^xposure, pbotosyntbetic oxygen evolution bad ceased. Tbis decrease was accon-ipanied by a decrease in fluorescence c^uencbing (as [(P -T)/P|), suggesting a gradual loss of water-splitting activity.In contrast, HSO,, initially stimulated pbotosyntbesis in Sphagnum from the polluted site. Chlorophyll Concentration was decreased in Sphagnum from both sites in the presence of HSO., .Possible mecbanisms of tolerance to HSO,, are discussed.

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Effects of sulphur pollutants on the growth of Sphagnum species

Cited by 107 publications

References 23 publications

Transition metals and the ability of Sphagnum to withstand the phytotoxic effects of the bisulphite ion

Transition metals and the ability of Sphagnum to withstand the phytotoxic effects of the bisulphite ion

Growth, production and interspecific competition in Sphagnum: effects of temperature, nitrogen and sulphur treatments on a boreal mire

Effects of the bisulphite ion on growth and photosynthesis in Sphagnum cuspidatum Hoffm.

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