ArticleApplied and environmental microbiology2005
Characterization of enzymatic antioxidants in the lichen Ramalina lacera and their response to rehydration.
Article in Applied and environmental microbiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 78 citations in OpenAlex.
- Decoding the physicochemical basis of resurrection: the journey of lichen Flavoparmelia caperata through prolonged water scarcity to full rehydration.BMC plant biology · 2024Article
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- Application of Index of Atmospheric Purity (IAP) along elevation gradients in Gunung Jerai, Kedah, Malaysia.Environmental monitoring and assessment · 2022Article
- Antioxidant Response during the Kinetics of Anhydrobiosis in Two Eutardigrade Species.Life (Basel, Switzerland) · 2022Article
- Advances in Understanding of Desiccation Tolerance of Lichens and Lichen-Forming Algae.Plants (Basel, Switzerland) · 2021Review
- 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
- Rehydration conditions for isolation of high quality RNA from the lichen Lobaria pulmonaria.BMC research notes · 2014Article
- Transcriptomics of desiccation tolerance in the streptophyte green alga Klebsormidium reveal a land plant-like defense reaction.PloS one · 2014Article
- Whole transcriptome characterization of the effects of dehydration and rehydration on Cladonia rangiferina, the grey reindeer lichen.BMC genomics · 2013Article
- Prolonging the hydration and active metabolism from light periods into nights substantially enhances lichen growth.Planta · 2013Article
- Desiccation stress and tolerance in green algae: consequences for ultrastructure, physiological and molecular mechanisms.Frontiers in plant science · 2013Article
- Article
- Antioxidant properties of some lichen species.Journal of food science and technology · 2011Article
- Degradation of the disease-associated prion protein by a serine protease from lichens.PloS one · 2011Article
- Antioxidant, antimicrobial and antiproliferative activities of five lichen species.International journal of molecular sciences · 2011Article
- Oxidative stress induces distinct physiological responses in the two Trebouxia phycobionts of the lichen Ramalina farinacea.Annals of botany · 2011Article
- Fungal-associated NO is involved in the regulation of oxidative stress during rehydration in lichen symbiosis.BMC microbiology · 2010Article
- Article
- Metabolic processes sustaining the reviviscence of lichen Xanthoria elegans (Link) in high mountain environments.Planta · 2007Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Lichens are slow-growing associations of fungi and green algae or cyanobacteria. This symbiotic association forms a common thallus that does not possess roots or a waxy cuticle and depends mainly on atmospheric input of mineral nutrients. The lifestyle of most lichens is composed of alternating periods of desiccation with low metabolic activity and hydration that induces increase in their metabolism. We have previously shown that rehydration of the naturally desiccated lichen Ramalina lacera resulted in a rapid increase in photosynthesis and was accompanied by a burst of intracellular production of reactive oxygen species and nitric oxide, as well as a transient decrease in water-soluble antioxidant capacity. We report here on enzymatic antioxidants of R. lacera and their response to rehydration. Native gel electrophoresis of crude extracts of R. lacera stained for superoxide dismutase (SOD) activity revealed four Fe-SOD and four Mn-SOD electromorphs that are synthesized by the alga, a Cu/Zn-SOD and a Mn-SOD that are the product of the fungus, and two catalases synthesized one by the fungus and the other by the algae. In addition, we detected glutathione reductase and glucose-6-phosphate dehydrogenase activities in crude extracts of R. lacera. Rehydration of the thalli resulted in a decrease in SOD activity of all forms, and a transient decrease in total catalase activity, as well as a decrease in the antioxidant auxiliary enzymes glutathione reductase and glucose-6-phosphate dehydrogenase.
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