ArticlePlant physiology2004
Activation of photosynthesis and resistance to photoinhibition in cyanobacteria within biological desert crust.
Article in Plant physiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed, 165 citations in OpenAlex.
- Water Availability and Air Humidity Strongly Affect Photosynthesis in Biofilms on Tree Trunks: Predictions for a Climate-Changing World.Environmental microbiology · 2026Article
- Nocturnal hydration prepares desert cyanobacteria for dawn-light harvesting by inducing phycoerythrin synthesis.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- The natural history of a biocrust architect, the cyanobacterium Microcoleus vaginatus.FEMS microbiology reviews · 2026Review
- Similar growth potentials of cyanobacteria and algae explain their coexistence in desert soils.Scientific reports · 2025Article
- Single antibiotics and their mixture at environmentally relevant concentrations may disrupt the physiology of A. obliquus.Scientific reports · 2025Article
- Distinct responses of Scytonema hyalinum and Leptolyngbya sp. to water availability and biocrust formation.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025Article
- Molecular Mechanisms ofPlants (Basel, Switzerland) · 2025Review
- Red-light signaling pathway activates desert cyanobacteria to prepare for desiccation tolerance.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Soil phototroph community resilience comes from down under.Frontiers in microbiology · 2025Article
- A Mathematical Model of Diel Activity and Long Time Survival in Phototrophic Mixed-Species Subaerial Biofilms.Bulletin of mathematical biology · 2024Article
- Biocrust carbon exchange varies with crust type and time on Chihuahuan Desert gypsum soils.Frontiers in microbiology · 2023Article
- Coevolution of tandemly repeatedProceedings of the National Academy of Sciences of the United States of America · 2022Article
- Cytochrome P450s in algae: Bioactive natural product biosynthesis and light-driven bioproduction.Acta pharmaceutica Sinica. B · 2022Review
- Pilot-Scale Cultivation of the Snow AlgaFrontiers in bioengineering and biotechnology · 2022Article
- Article
- Cyanobacterial Mats in Calcite-Precipitating Serpentinite-Hosted Alkaline Springs of the Voltri Massif, Italy.Microorganisms · 2020Article
- Dehydration-Induced DnaK2 Chaperone Is Involved in PSII Repair of a Desiccation-Tolerant Cyanobacterium.Plant physiology · 2020Article
- Photosystem II core quenching in desiccated Leptolyngbya ohadii.Photosynthesis research · 2020Article
- Land Use and Seasonal Effects on the Soil Microbiome of a Brazilian Dry Forest.Frontiers in microbiology · 2019Article
- Viable cyanobacteria in the deep continental subsurface.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Filamentous cyanobacteria are the main primary producers in biological desert sand crusts. The cells are exposed to extreme environmental conditions including temperature, light, and diurnal desiccation/rehydration cycles. We have studied the kinetics of activation of photosynthesis during rehydration of the cyanobacteria, primarily Microcoleus sp., within crust samples collected in the Negev desert, Israel. We also investigated their susceptibility to photoinhibition. Activation of the photosynthetic apparatus, measured by fluorescence kinetics, thermoluminescence, and low temperature fluorescence emission spectra, did not require de novo protein synthesis. Over 50% of the photosystem II (PSII) activity, assembled phycobilisomes, and photosystem I (PSI) antennae were detected within less than 5 min of rehydration. Energy transfer to PSII and PSI by the respective antennae was fully established within 10 to 20 min of rehydration. The activation of a fraction of PSII population (about 20%-30%) was light and temperature-dependent but did not require electron flow to plastoquinone [was not inhibited by 3-(3,4-dichlorophenyl)-1,1-dimethylurea]. The cyanobacteria within the crusts are remarkably resistant to photoinhibition even in the absence of protein synthesis. The rate of PSII repair increased with light intensity and with time of exposure. Consequently, the extent of photoinhibition in high-light-exposed crusts reached a constant, relatively low, level. This is in contrast to model organisms such as Synechocystis sp. strain PCC 6803 where PSII activity declined continuously over the entire exposure to high illumination. Ability of the crust's organisms to rapidly activate photosynthesis upon rehydration and withstand photoinhibition under high light intensity may partly explain their ability to survive in this ecosystem.
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