The impact of UV-B and sulphur- or copper-containing solutions in acidic conditions on chlorophyll fluorescence in selected Ramalina species

J. Garty; O. Tamir; T. Levin; H. Lehr

doi:10.1016/j.envpol.2006.03.022

The impact of UV-B and sulphur- or copper-containing solutions in acidic conditions on chlorophyll fluorescence in selected Ramalina species

J. Garty^*, O. Tamir, T. Levin, H. Lehr

^*Corresponding author for this work

Faculty of Life Sciences

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Ramalina maciformis and Ramalina lacera were exposed to different solutions and UV-B to seek for alterations in the PSII photosynthetic quantum yield (F_v/F_m), in response to chemicals and radiation. For R. maciformis, significant alterations of the F_v/F_m ratio occurred only in response to different bisulphite solutions. The F_v/F_m ratio decreased most in R. maciformis and R. lacera following exposure to 5 and 1 mM bisulphite, respectively. Significant differences in F_v/F_m ratios were observed for R. lacera in response to different solutions and light at different wavelengths, this being synergistic. The PSII system was unaffected by simulated acid rain in both lichens. R. maciformis, in particular, may survive limited acid rain exposure owing to high Ca oxalate accumulation. The F_v/F_m ratio decreased most in R. lacera following short-term exposures to CuSO₄, suggesting that this species is more sensitive to Cu ions under acidic conditions.

Original language	English
Pages (from-to)	266-273
Number of pages	8
Journal	Environmental Pollution
Volume	145
Issue number	1
DOIs	https://doi.org/10.1016/j.envpol.2006.03.022
State	Published - Jan 2007

Funding

Funders	Funder number
Tel Aviv University

Keywords

Bisulphite
Ca
CuSO
F/F
Lichens
Photosynthetic quantum yield of photosystem II
Simulated acid rain

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10.1016/j.envpol.2006.03.022

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title = "The impact of UV-B and sulphur- or copper-containing solutions in acidic conditions on chlorophyll fluorescence in selected Ramalina species",

abstract = "Ramalina maciformis and Ramalina lacera were exposed to different solutions and UV-B to seek for alterations in the PSII photosynthetic quantum yield (Fv/Fm), in response to chemicals and radiation. For R. maciformis, significant alterations of the Fv/Fm ratio occurred only in response to different bisulphite solutions. The Fv/Fm ratio decreased most in R. maciformis and R. lacera following exposure to 5 and 1 mM bisulphite, respectively. Significant differences in Fv/Fm ratios were observed for R. lacera in response to different solutions and light at different wavelengths, this being synergistic. The PSII system was unaffected by simulated acid rain in both lichens. R. maciformis, in particular, may survive limited acid rain exposure owing to high Ca oxalate accumulation. The Fv/Fm ratio decreased most in R. lacera following short-term exposures to CuSO4, suggesting that this species is more sensitive to Cu ions under acidic conditions.",

keywords = "Bisulphite, Ca, CuSO, F/F, Lichens, Photosynthetic quantum yield of photosystem II, Simulated acid rain",

author = "J. Garty and O. Tamir and T. Levin and H. Lehr",

note = "Funding Information: This study was supported by the Tel Aviv University Fund. The authors are indebted to Mrs. Rachel Garty-Spitz for her valued contribution to the manuscript. ",

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AU - Garty, J.

AU - Tamir, O.

AU - Levin, T.

AU - Lehr, H.

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N2 - Ramalina maciformis and Ramalina lacera were exposed to different solutions and UV-B to seek for alterations in the PSII photosynthetic quantum yield (Fv/Fm), in response to chemicals and radiation. For R. maciformis, significant alterations of the Fv/Fm ratio occurred only in response to different bisulphite solutions. The Fv/Fm ratio decreased most in R. maciformis and R. lacera following exposure to 5 and 1 mM bisulphite, respectively. Significant differences in Fv/Fm ratios were observed for R. lacera in response to different solutions and light at different wavelengths, this being synergistic. The PSII system was unaffected by simulated acid rain in both lichens. R. maciformis, in particular, may survive limited acid rain exposure owing to high Ca oxalate accumulation. The Fv/Fm ratio decreased most in R. lacera following short-term exposures to CuSO4, suggesting that this species is more sensitive to Cu ions under acidic conditions.

AB - Ramalina maciformis and Ramalina lacera were exposed to different solutions and UV-B to seek for alterations in the PSII photosynthetic quantum yield (Fv/Fm), in response to chemicals and radiation. For R. maciformis, significant alterations of the Fv/Fm ratio occurred only in response to different bisulphite solutions. The Fv/Fm ratio decreased most in R. maciformis and R. lacera following exposure to 5 and 1 mM bisulphite, respectively. Significant differences in Fv/Fm ratios were observed for R. lacera in response to different solutions and light at different wavelengths, this being synergistic. The PSII system was unaffected by simulated acid rain in both lichens. R. maciformis, in particular, may survive limited acid rain exposure owing to high Ca oxalate accumulation. The Fv/Fm ratio decreased most in R. lacera following short-term exposures to CuSO4, suggesting that this species is more sensitive to Cu ions under acidic conditions.

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KW - CuSO

KW - F/F

KW - Lichens

KW - Photosynthetic quantum yield of photosystem II

KW - Simulated acid rain

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The impact of UV-B and sulphur- or copper-containing solutions in acidic conditions on chlorophyll fluorescence in selected Ramalina species

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