Short-term effects of enhanced UV-B and CO2 on lichens at different latitudes
Sonesson, M ; Callaghan, T V and Björn, Lars Olof LU
(1995)
In Lichenologist
27(6).
p.547-557
- Abstract
- Interaction effects of UV-B and CO2 on three lichens species, Cladonia arbusculo, Cetraria islandica and Stereocaulon paschale, from two latitudinal sites, 68N and 56N, were studied in a laboratory experiment. The response of the plants was recorded by measuring their chlorophyll fluorescence. All species had a similar response to enhanced UV-B depending on the latitude from which the population came and the time of the season when they were sampled. Overall, there was a significant increase in photosystem II yield (as measured by a fluorescence technique) due to UV-B and no separate effect due to enhanced CO2, although there was a significant interaction between CO2 and UV-B. The increase due to UV-B was at the low CO2 level. There were... (More)
- Interaction effects of UV-B and CO2 on three lichens species, Cladonia arbusculo, Cetraria islandica and Stereocaulon paschale, from two latitudinal sites, 68N and 56N, were studied in a laboratory experiment. The response of the plants was recorded by measuring their chlorophyll fluorescence. All species had a similar response to enhanced UV-B depending on the latitude from which the population came and the time of the season when they were sampled. Overall, there was a significant increase in photosystem II yield (as measured by a fluorescence technique) due to UV-B and no separate effect due to enhanced CO2, although there was a significant interaction between CO2 and UV-B. The increase due to UV-B was at the low CO2 level. There were also significant differences in response due to latitude. The results contradict our hypotheses that negative effects of UV-B would be larger in the North than in the South and that a negative response should be especially large during the early season. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/134491
- author
- Sonesson, M
; Callaghan, T V
and Björn, Lars Olof
LU
- organization
- publishing date
- 1995
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Lichenologist
- volume
- 27
- issue
- 6
- pages
- 547 - 557
- publisher
- Cambridge University Press
- external identifiers
-
- scopus:0000369670
- ISSN
- 0024-2829
- DOI
- 10.1016/S0024-2829(95)80013-1
- language
- English
- LU publication?
- yes
- id
- 15371991-81a0-4cfb-825b-76060a2cd505 (old id 134491)
- date added to LUP
- 2016-04-01 17:00:01
- date last changed
- 2021-01-03 09:27:13
@article{15371991-81a0-4cfb-825b-76060a2cd505,
abstract = {{Interaction effects of UV-B and CO2 on three lichens species, Cladonia arbusculo, Cetraria islandica and Stereocaulon paschale, from two latitudinal sites, 68N and 56N, were studied in a laboratory experiment. The response of the plants was recorded by measuring their chlorophyll fluorescence. All species had a similar response to enhanced UV-B depending on the latitude from which the population came and the time of the season when they were sampled. Overall, there was a significant increase in photosystem II yield (as measured by a fluorescence technique) due to UV-B and no separate effect due to enhanced CO2, although there was a significant interaction between CO2 and UV-B. The increase due to UV-B was at the low CO2 level. There were also significant differences in response due to latitude. The results contradict our hypotheses that negative effects of UV-B would be larger in the North than in the South and that a negative response should be especially large during the early season.}},
author = {{Sonesson, M and Callaghan, T V and Björn, Lars Olof}},
issn = {{0024-2829}},
language = {{eng}},
number = {{6}},
pages = {{547--557}},
publisher = {{Cambridge University Press}},
series = {{Lichenologist}},
title = {{Short-term effects of enhanced UV-B and CO2 on lichens at different latitudes}},
url = {{http://dx.doi.org/10.1016/S0024-2829(95)80013-1}},
doi = {{10.1016/S0024-2829(95)80013-1}},
volume = {{27}},
year = {{1995}},
}