ArticleOecologia2013
Ecophysiology and genetic structure of polar versus temperate populations of the lichen Cetraria aculeata.
Article in Oecologia, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Effect of thallus melanisation on the sensitivity of lichens to heat stress.Scientific reports · 2023Article
- Regionally Varying Habitat Relationships in Lichens: The Concept and Evidence with an Emphasis on North-Temperate Ecosystems.Journal of fungi (Basel, Switzerland) · 2023Review
- Fungal Host Affects Photosynthesis in a Lichen Holobiont.Journal of fungi (Basel, Switzerland) · 2022Article
- Expanding the mutualistic niche: parallel symbiont turnover along climatic gradients.Proceedings. Biological sciences · 2020Article
- The Total and Active Bacterial Community of the ChlorolichenFrontiers in microbiology · 2020Article
- Relationships between water status and photosystem functionality in a chlorolichen and its isolated photobiont.Planta · 2018Article
- Habitat stress initiates changes in composition, CO2 gas exchange and C-allocation as life traits in biological soil crusts.The ISME journal · 2014Article
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
We studied polar and temperate samples of the lichen Cetraria aculeata to investigate whether genetical differences between photobionts are correlated with physiological properties of the lichen holobiont. Net photosynthesis and dark respiration (DR) at different temperatures (from 0 to 30 °C) and photon flux densities (from 0 to 1,200 μmol m(-2) s(-1)) were studied for four populations of Cetraria aculeata. Samples were collected from maritime Antarctica, Svalbard, Germany and Spain, representing different climatic situations. Sequencing of the photobiont showed that the investigated samples fall in the polar and temperate clade described in Fernández-Mendoza et al. (Mol Ecol 20:1208-1232, 2011). Lichens with photobionts from these clades differ in their temperature optimum for photosynthesis, maximal net photosynthesis, maximal DR and chlorophyll content. Maximal net photosynthesis was much lower in Antarctica and Svalbard than in Germany and Spain. The difference was smaller when rates were expressed by chlorophyll content. The same is true for the temperature optima of polar (11 °C) and temperate (15 and 17 °C) lichens. Our results indicate that lichen mycobionts may adapt or acclimate to local environmental conditions either by selecting algae from regional pools or by regulating algal cell numbers (chlorophyll content) within the thallus.
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