ArticlePlant physiology2007
Photoprotection in the lichen Parmelia sulcata: the origins of desiccation-induced fluorescence quenching.
Article in Plant physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 82 citations in OpenAlex.
- Photoprotection in a desert moss: dynamic excitation quenching during the hydration cycle of the Syntrichia caninervis.Photosynthesis research · 2026Article
- The long-term effect of removing the UV-protectant usnic acid from the thalli of the lichenMycological progress · 2022Article
- Advances in Understanding of Desiccation Tolerance of Lichens and Lichen-Forming Algae.Plants (Basel, Switzerland) · 2021Review
- Inhibition of Primary Photosynthesis in Desiccating Antarctic Lichens Differing in Their Photobionts, Thallus Morphology, and Spectral Properties.Microorganisms · 2021Article
- Photosynthetic performance of Antarctic lichen Dermatocarpon polyphyllizum when affected by desiccation and low temperatures.Photosynthesis research · 2020Article
- Study of Ecophysiological Responses of the Antarctic Fruticose LichenPlants (Basel, Switzerland) · 2020Article
- Symbiosis at its limits: ecophysiological consequences of lichenization in the genus Prasiola in Antarctica.Annals of botany · 2020Article
- Survey of the occurrence of desiccation-induced quenching of basal fluorescence in 28 species of green microalgae.Planta · 2018Article
- Red shift in the spectrum of a chlorophyll species is essential for the drought-induced dissipation of excess light energy in a poikilohydric moss, Bryum argenteum.Photosynthesis research · 2018Article
- Mechanisms of drought-induced dissipation of excitation energy in sun- and shade-adapted drought-tolerant mosses studied by fluorescence yield change and global and target analysis of fluorescence decay kinetics.Photosynthesis research · 2018Article
- Ozone and desiccation tolerance in chlorolichens are intimately connected: a case study based on two species with different ecology.Environmental science and pollution research international · 2018Article
- Functional analysis of thioredoxin from the desert lichen-forming fungus, Endocarpon pusillum Hedwig, reveals its role in stress tolerance.Scientific reports · 2016Article
- New features of desiccation tolerance in the lichen photobiont Trebouxia gelatinosa are revealed by a transcriptomic approach.Plant molecular biology · 2016Article
- Formation of photosystem II reaction centers that work as energy sinks in lichen symbiotic Trebouxiophyceae microalgae.Photosynthesis research · 2016Article
- Ideal osmotic spaces for chlorobionts or cyanobionts are differentially realized by lichenized fungi.Plant physiology · 2014Article
- Thermal energy dissipation and xanthophyll cycles beyond the Arabidopsis model.Photosynthesis research · 2012Review
- Conservation and dissipation of light energy in desiccation-tolerant photoautotrophs, two sides of the same coin.Photosynthesis research · 2012Review
- Desiccation-induced non-radiative dissipation in isolated green lichen algae.Photosynthesis research · 2012Article
- Three different mechanisms of energy dissipation of a desiccation-tolerant moss serve one common purpose: to protect reaction centres against photo-oxidation.Journal of experimental botany · 2012Article
- From horse thief to professor: confessions of a plant physiologist.Photosynthesis research · 2012Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Lichens, a symbiotic relationship between a fungus (mycobiont) and a photosynthetic green algae or cyanobacteria (photobiont), belong to an elite group of survivalist organisms termed resurrection species. When lichens are desiccated, they are photosynthetically inactive, but upon rehydration they can perform photosynthesis within seconds. Desiccation is correlated with both a loss of variable chlorophyll a fluorescence and a decrease in overall fluorescence yield. The fluorescence quenching likely reflects photoprotection mechanisms that may be based on desiccation-induced changes in lichen structure that limit light exposure to the photobiont (sunshade effect) and/or active quenching of excitation energy absorbed by the photosynthetic apparatus. To separate and quantify these possible mechanisms, we have investigated the origins of fluorescence quenching in desiccated lichens with steady-state, low temperature, and time-resolved chlorophyll fluorescence spectroscopy. We found the most dramatic target of quenching to be photosystem II (PSII), which produces negligible levels of fluorescence in desiccated lichens. We show that fluorescence decay in desiccated lichens was dominated by a short lifetime, long-wavelength component energetically coupled to PSII. Remaining fluorescence was primarily from PSI and although diminished in amplitude, PSI decay kinetics were unaffected by desiccation. The long-wavelength-quenching species was responsible for most (about 80%) of the fluorescence quenching observed in desiccated lichens; the rest of the quenching was attributed to the sunshade effect induced by structural changes in the lichen thallus.
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