ArticlePhotosynthesis research2005
Photochemical reactions of chlorophyll in dehydrated photosystem II: two chlorophyll forms (680 and 700 nm).
Article in Photosynthesis research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 53 citations in OpenAlex.
- Photosynthetic performance of Antarctic lichen Dermatocarpon polyphyllizum when affected by desiccation and low temperatures.Photosynthesis research · 2020Article
- An Update on Plant Photobiology and Implications for Cannabis Production.Frontiers in plant science · 2019Review
- 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
- Formation of photosystem II reaction centers that work as energy sinks in lichen symbiotic Trebouxiophyceae microalgae.Photosynthesis research · 2016Article
- Rapid recovery of cyanobacterial pigments in desiccated biological soil crusts following addition of water.PloS one · 2014Article
- Desiccation-induced non-radiative dissipation in isolated green lichen algae.Photosynthesis research · 2012Article
- Conservation and dissipation of light energy in desiccation-tolerant photoautotrophs, two sides of the same coin.Photosynthesis research · 2012Review
- Thermal energy dissipation and xanthophyll cycles beyond the Arabidopsis model.Photosynthesis research · 2012Review
- 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
- Heat stress and the photosynthetic electron transport chain of the lichen Parmelina tiliacea (Hoffm.) Ach. in the dry and the wet state: differences and similarities with the heat stress response of higher plants.Photosynthesis research · 2012Article
- Photoprotection of green plants: a mechanism of ultra-fast thermal energy dissipation in desiccated lichens.Planta · 2008Article
- Photoprotection in the lichen Parmelia sulcata: the origins of desiccation-induced fluorescence quenching.Plant physiology · 2007Article
- Primary light-energy conversion in tetrameric chlorophyll structure of photosystem II and bacterial reaction centers: I. A review.Photosynthesis researchReview
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Lichens and phototolerant poikilohydric mosses differ from spinach leaves, fern fronds or photosensitive mosses in that they show strongly decreased Fo chlorophyll fluorescence after drying. This desiccation-induced fluorescence loss is rapidly reversible under rehydration. Fluorescence emission from Photosystem II at 685 nm was decreased more strongly by dehydration than 720 nm emission. Reaction centers of Photosystem II lose activity on dehydration and regain it on hydration. Heating of desiccated lichens increased Fo chlorophyll fluorescence. The activation energy for the reversible part of the temperature-dependent fluorescence increase was 0.045 eV, which corresponds to the energy difference between the 680 and 697 nm absorption bands. In desiccated chlorolichens such as Parmelia sulcata, heating induces the appearance of positive variable fluorescence related to the reversible reduction of QA due to overcoming the energy barrier. This is interpreted to provide information on the mechanism of photoprotection: energy is dissipated by changing Chl680 or P680 into a chlorophyll form, which absorbs at 700 nm and emits light at 720 nm (Chl-720 or P680(700)) with a low quantum yield. Dissipation of light energy in this trap is activated by desiccation.
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