Effects of simulated nitrogen rich and acid rain on the nitrogen‐fixing lichen <i>Peltigera aphthosa</i> (L.) Willd.

Hallingbäck, Tomas; Kellner, Olle

doi:10.1111/j.1469-8137.1992.tb01062.x

Cited by 32 publications

(18 citation statements)

References 18 publications

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“…The decrease of F v /F m ratios, A 435nm /A 415nm ratios and NDVI values in the lichen R. lacera exposed to anthropogenic activity in the study area, is in accordance with studies on the impact of acid rain on lichens ( Hallingbäck and Kellner 1992; Kytöviita and Crittenden 1994; Shevtsova and Neuvonen 1997). The occurrence of acid rain in the study area was already acknowledged.…”

Section: Discussionsupporting

confidence: 90%

Comparison of five physiological parameters to assess the vitality of the lichen Ramalina lacera exposed to air pollution

Garty

Weissman

Tamir

et al. 2000

Physiologia Plantarum

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To determine the environmental impact of industrial activity, we examined and compared the following parameters of physiological integrity in the epiphytic fruticose lichen Ramalina lacera. (1) Potential quantum yield of PSII expressed as the chlorophyll fluorescence ratio Fv/Fm. (2) Spectral reflectance expressed as values of normalized difference vegetation index (NDVI). (3) Production of ethylene. (4) Electrolyte leakage brought about by degrading cell membranes in terms of electric conductivity. (5) The ratio A435nm/A415nm indicating the disintegration of chlorophyll. The amounts of Ba, Cu, K, Ni, S, V and Zn contained in the lichen thallus were measured to quantify the degree of pollution. Some of the lichen‐carrying twigs collected at a relatively unpolluted control site were resuspended on the original trees as controls. Other lichens were transplanted to 19 biomonitoring sites. Transplanted lichens in polluted sites contained higher amounts of Ba, Ni, S, V and Zn than lichens in the control site and in most of the rural sites upon an exposure period of 8 months. Statistical analysis revealed negative correlations between Fv/Fm ratios and Ba contents of transplants. High Ba, Cu, Ni and Zn contents correlated negatively with NDVI values. NDVI values correlated with A435nm/A415nm, Fv/Fm and K. The ratio A435nm/A415nm correlated positively with K and negatively with Ba, Cu and Zn. The production of ethylene correlated positively with Cu and Ba and negatively with A435nm/A415nm, Fv/Fm and NDVI. Electric conductivity values correlated positively with Ba, Cu, Na, S, V and Zn and negatively with NDVI. Both elemental content and physiological alterations in transplants of R. lacera point to a high degree of contamination in the Haifa Bay region, which is polluted by fuel‐oil combustion apart from other industrial activities. The present work suggests that in our specific study area, the most sensitive parameter to assess the vitality of the lichen thallus is electric conductivity whereas ethylene production is less sensitive.

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Section: Discussionsupporting

confidence: 90%

Comparison of five physiological parameters to assess the vitality of the lichen Ramalina lacera exposed to air pollution

Garty

Weissman

Tamir

et al. 2000

Physiologia Plantarum

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“…The lower S deposition with stemflow explains why significant correlations of S concentration in stemflow were only found with cover of Cladonia coniocraea, Micarea prasina, and Parmelia saxatilis, whereas in the Harz Mountains, Hauck and Runge (2002) and Hesse (2002) concluded from strong correlations with the most frequent lichen species that inorganic S significantly affected the small-scale distribution of epiphytic li-chens on Picea abies. Experiments showed that SO 4 2-applied in acidic solution in concentration ranges such as found in the stemflow from the Harz Mountains is capable of causing damage to lichen thalli (Hallingbäck and Kellner 1992;Piervittori et al 1997). Lechowicz (1982) incubated Cladina stellaris for 15 min with simulated acid rain containing 100 µM SO 4 2-at pH 4 and found a reduced photosynthetic capacity.…”

Section: Discussionmentioning

confidence: 99%

Site factors determining epiphytic lichen distribution in a dieback-affected spruce-fir forest on Whiteface Mountain, New York: stemflow chemistry

Schmull¹,

Hauck²,

Vann³

et al. 2002

Can. J. Bot.

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Runge, M. (2002). Site factors determining epiphytic lichen distribution in a dieback-affected spruce-fir forest on Whiteface Mountain, New York: stemflow chemistry. Retrieved from http://repository.upenn.edu/ees_papers/1Site factors determining epiphytic lichen distribution in a dieback-affected spruce-fir forest on Whiteface Mountain, New York: stemflow chemistry AbstractEpiphytic lichen diversity in a dieback-affected forest of red spruce (Picea rubens Sarg.) and balsam fir (Abies balsamea (L.) Mill.) on Whiteface Mountain, New York, U.S.A., was higher on dead compared with living trees and on fir compared with spruce. Diversity differed more between living and dead spruce than between living and dead fir. Cover of all lichen species that occurred on more than 50% of the sample trees, except for two species, decreased with increasing mean concentration of NO Cover of all lichen species that occurred on more than 50% of the sample trees, except for two species, decreased with increasing mean concentration of NO 3 -in stemflow. Concentrations of NO 3 -were higher on living spruce compared with dead spruce and with living and dead fir. The negative correlations between lichen cover and NO 3 -concentration may reflect either a decrease of lichen abundance caused by toxic effects of higher NO 3 -concentrations or a removal of NO 3 -from stemflow by epiphytic lichens. Experimental exposure of Hypogymnia physodes to NaNO 3 reduced chlorophyll concentrations. This result, together with estimations of lichen and needle biomass, indicates that a dependence of lichen cover on NO 3 -concentrations in stemflow may be the cause for the negative correlations. The sulphur concentration in stemflow did not affect lichen abundance on Whiteface Mountain. The manganese concentration in stemflow may have an effect on single species.Key words: forest dieback, manganese, nitrate assimilation, nitrate toxicity, precipitation chemistry, sulphur.Résumé : Dans une forêt d'épinette (Picea rubens Sarg.) et de sapin (Abies balsamea (L.) Mill.) de la Whiteface Mountain, New York, E.U., affectée par un dépérissement, la diversité des lichens épiphytes est plus importante sur les arbres morts que sur les arbres vivants, et sur le sapin que sur l'épinette. La diversité est plus marquée entre les épinet-tes vivantes et mortes qu'entre les sapins vivants et morts. La couverture par l'ensemble des espèces de lichen qui se retrouvent sur de 50 % des arbres échantillonnés, sauf pour deux espèces, diminue avec l'augmentation moyenne de la teneur en NO 3 -dans le lessivat de l'arbre. Les teneurs en NO 3 --sont plus élevées sur l'épinette vivante que sur l'épinette morte, et sur le sapin vivant que sur le sapin mort. Les corrélations négatives entre la couverture lichénique et la teneur en NO 3 -pourraient refléter soit une diminution de l'abondance des lichens causée par les effets toxiques des hautes teneurs en NO 3 -ou soit une élimination du NO 3 -du lessivat de l'arbre par les lichens épiphytes. Une exposition expérimentale de l'Hypogymnia phys...

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“…. short-term experiments cvanobacteria in lichen fixation after exposure to pH 3 4 (Gunther, 1988) or pH 3-0 (Hallingback & Kellner, 1992). In other studies a decline in nitrogenase activity has been observed at pH 4'0 (Englund, 1978;Fritz-Sheridan, 1985).…”

Section: Introductionmentioning

confidence: 95%

Effects of simulated acid rain on nitrogenase activity (acetylene reduction) in the lichen Stereocaulon paschale (L.) Hoffm., with special reference to nutritional aspects

Kytöviita

Crittenden

1994

New Phytologist

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SUM M . A R YThe effects of SAR (simulated acid rain using H^SO^ and HNC).; singly and combined) on ARA (acetylene reduction activity), and concentrations of N, K\ Mg-' and Ca"" was investigated in Stereocauton paschale (L,) Hoffm. ARA was significantly decreased after 4 months ot" SAR at pH 3-0. One year after spraying treatments had ceased, lichens treated at pH 3'0 showed no clear signs of recovery of ARA. After 5 y of acidification, .\RA in lichens sprayed with combined H,,SO| and HXO., at pH 2''* was comparable to that observed after 4 months of pH 3-0-enhanced rain, i.e. close to zero. SAR at pH 4-0 had no marked effect on nitrogenase activity after 4 months' exposure, but AR.A was significantly decreased after 5 y of pH 4'1 (H^SO^) treatment. There were no clear relationships between the inhibitory effects of acid additions and alterations in nutritional status in the lichen caused by SAR, Furthermore, no correlation between thallus N concentration and nitrogenase activity was observed.

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Effects of simulated nitrogen rich and acid rain on the nitrogen‐fixing lichen Peltigera aphthosa (L.) Willd.

Cited by 32 publications

References 18 publications

Comparison of five physiological parameters to assess the vitality of the lichen Ramalina lacera exposed to air pollution

Comparison of five physiological parameters to assess the vitality of the lichen Ramalina lacera exposed to air pollution

Site factors determining epiphytic lichen distribution in a dieback-affected spruce-fir forest on Whiteface Mountain, New York: stemflow chemistry

Effects of simulated acid rain on nitrogenase activity (acetylene reduction) in the lichen Stereocaulon paschale (L.) Hoffm., with special reference to nutritional aspects

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