ArticleBMC plant biology2011
Activation of violaxanthin cycle in darkness is a common response to different abiotic stresses: a case study in Pelvetia canaliculata.
Article in BMC plant biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 56 citations in OpenAlex.
- Structure of Photosystem I-FCP from giant kelp uncovers drivers of antenna evolution across the red lineage.bioRxiv : the preprint server for biology · 2025Article
- Metabolic changes and biochemical degradation during dark anoxic incubation of Nannochloropsis: implications for low-energy microalgal cell rupture.Bioprocess and biosystems engineering · 2025Article
- Desiccation tolerance in the resurrection plantFrontiers in plant science · 2024Article
- Basking in the sun: how mosses photosynthesise and survive in Antarctica.Photosynthesis research · 2023Review
- Metabolic engineering of Escherichia coli for high-level production of violaxanthin.Microbial cell factories · 2023Article
- Continuous monitoring of chlorophyllPlant and soil · 2023Article
- Metabolic and Transcriptomic Profiling Reveals Etiolated Mechanism in Huangyu Tea (International journal of molecular sciences · 2022Article
- Fucoid Macroalgae Have Distinct Physiological Mechanisms to Face Emersion and Submersion Periods in Their Southern Limit of Distribution.Plants (Basel, Switzerland) · 2021Article
- Recovering wasted nutrients from shrimp farming through the combined culture of polychaetes and halophytes.Scientific reports · 2021Article
- An extreme heatwave enhanced the xanthophyll de-epoxidation state in leaves ofPhysiology and molecular biology of plants : an international journal of functional plant biology · 2020Article
- Symbiosis at its limits: ecophysiological consequences of lichenization in the genus Prasiola in Antarctica.Annals of botany · 2020Article
- Plant Origin, but Not Phylogeny, Drive Species Ecophysiological Response to Projected Climate.Frontiers in plant science · 2020Article
- Is geographical variation driving the transcriptomic responses to multiple stressors in the kelp Saccharina latissima?BMC plant biology · 2019Article
- Novel rapid method for the characterisation of polymeric sugars from macroalgae.Journal of applied phycology · 2017Article
- Violaxanthin de-epoxidase disulphides and their role in activity and thermal stability.Photosynthesis research · 2015Article
- Application of heat stress in situ demonstrates a protective role of irradiation on photosynthetic performance in alpine plants.Plant, cell & environment · 2015Article
- Salinity stress constrains photosynthesis in Fraxinus ornus more when growing in partial shading than in full sunlight: consequences for the antioxidant defence system.Annals of botany · 2014Article
- Alternative electron transports participate in the maintenance of violaxanthin De-epoxidase activity of Ulva sp. under low irradiance.PloS one · 2013Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn the violaxanthin (V) cycle, V is de-epoxidized to zeaxanthin (Z) when strong light or light combined with other stressors lead to an overexcitation of photosystems. However, plants can also suffer stress in darkness and recent reports have shown that dehydration triggers V-de-epoxidation in the absence of light. In this study, we used the highly stress-tolerant brown alga Pelvetia canaliculata as a model organism, due to its lack of lutein and its non-photochemical quenching independent of the transthylakoidal-ΔpH, to study the triggering of the V-cycle in darkness induced by abiotic stressors.
resultsWe have shown that besides desiccation, other factors such as immersion, anoxia and high temperature also induced V-de-epoxidation in darkness. This process was reversible once the treatments had ceased (with the exception of heat, which caused lethal damage). Irrespective of the stressor applied, the resulting de-epoxidised xanthophylls correlated with a decrease in Fv/Fm, suggesting a common function in the down-regulation of photosynthetical efficiency. The implication of the redox-state of the plastoquinone-pool and of the differential activity of V-cycle enzymes on V-de-epoxidation in darkness was also examined. Current results suggest that both violaxanthin de-epoxidase (VDE) and zeaxanthin-epoxidase (ZE) have a basal constitutive activity even in darkness, being ZE inhibited under stress. This inhibition leads to Z accumulation.
conclusionThis study demonstrates that V-cycle activity is triggered by several abiotic stressors even when they occur in an absolute absence of light, leading to a decrease in Fv/Fm. This finding provides new insights into an understanding of the regulation mechanism of the V-cycle and of its ecophysiological roles.
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