The effects of temperature and moisture on CO2 uptake and total resistance to water loss in the antarctic foliose lichen Umbilicaria antarctica
Harrisson, P.M.; Walton, David W.H. ORCID: https://orcid.org/0000-0002-7103-4043; Rothery, P.. 1989 The effects of temperature and moisture on CO2 uptake and total resistance to water loss in the antarctic foliose lichen Umbilicaria antarctica. New Phytologist, 111 (4). 673-682. https://doi.org/10.1111/j.1469-8137.1989.tb02362.x
Full text not available from this repository. (Request a copy)Abstract/Summary
Maximum net photosynthesis of field‐fresh thalli, illuminated at 200 μmol photons m−2 s−1 (PAR), was attained at 13 °C and 1.10 g g−1 water content. Small but significant rates of photosynthesis were measured at −5.5 °C. Depression of net photosynthesis at high thallus water contents is explained in terms of thallus anatomy. Calculation of evaporative resistance of the thallus by a new method showed a moisture‐dependent response pattern, and was in agreement with direct observations made on other foliose species.
Item Type: | Publication - Article |
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Digital Object Identifier (DOI): | https://doi.org/10.1111/j.1469-8137.1989.tb02362.x |
ISSN: | 0028-646X |
Additional Keywords: | photosynthesis, lichen, ware stress, ecophysiology, umbilicaria antarctica |
NORA Subject Terms: | Botany |
Date made live: | 17 Oct 2018 09:03 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/521243 |
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