ArticlePhotosynthesis research2008
Fitting light saturation curves measured using modulated fluorometry.
Article in Photosynthesis research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 145 citations in OpenAlex.
- Article
- Modeling light response of effective quantum efficiency of photosystem II for CFrontiers in plant science · 2025Article
- An unexpected hydratase synthesizes the green light-absorbing pigment fucoxanthin.The Plant cell · 2023Article
- Manipulation of glycogen and sucrose synthesis increases photosynthetic productivity in cyanobacteria.Frontiers in microbiology · 2023Article
- Chlorophyll Fluorescence Imaging as a Tool for Evaluating Disease Resistance of Common Bean Lines in the Western Amazon Region of Colombia.Plants (Basel, Switzerland) · 2022Article
- Morphological, physiological, and transcriptional responses of the freshwater diatomFrontiers in microbiology · 2022Article
- Genetic variation in high light responses ofHeliyon · 2021Article
- A relook into plant wilting: observational evidence based on unsaturated soil-plant-photosynthesis interaction.Scientific reports · 2020Article
- Metabolomics for early detection of stress in freshwater alga Poterioochromonas malhamensis exposed to silver nanoparticles.Scientific reports · 2020Article
- A Chlorophyte Alga Utilizes Alternative Electron Transport for Primary Photoprotection.Plant physiology · 2020Article
- It Is Hot in the Sun: Antarctic Mosses Have High Temperature Optima for Photosynthesis Despite Cold Climate.Frontiers in plant science · 2020Article
- The Fluctuating Cell-Specific Light Environment and Its Effects on Cyanobacterial Physiology.Plant physiology · 2019Article
- Individual and Combined Effects of Extracellular Polymeric Substances and Whole Cell Components ofMolecules (Basel, Switzerland) · 2019Article
- Effect of ammonium and high light intensity on the accumulation of lipids inBiotechnology for biofuels · 2018Article
- Article
- Rapid development of cyanobacterial crust in the field for combating desertification.PloS one · 2017Article
- Dynamics of triacylglycerol and EPA production in Phaeodactylum tricornutum under nitrogen starvation at different light intensities.PloS one · 2017Article
- Microbial Diversity and Cyanobacterial Production in Dziani Dzaha Crater Lake, a Unique Tropical Thalassohaline Environment.PloS one · 2017Article
- Contemporary reliance on bicarbonate acquisition predicts increased growth of seagrass Amphibolis antarctica in a high-CO2 world.Conservation physiology · 2014Article
- The epiphytic fern Elaphoglossum luridum (Fée) Christ. (Dryopteridaceae) from Central and South America: morphological and physiological responses to water stress.TheScientificWorldJournal · 2014Article
Corrections and comments
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A blue diode PAM (Pulse Amplitude Modulation) fluorometer was used to measure rapid Photosynthesis (P) versus Irradiance (E) curves (P vs. E curves) in Synechococcus (classical cyanobacteria), Prochlorothrix (prochlorophyta), Chlorella (chlorophyta), Rhodomonas (cryptophyta), Phaeodactylum (bacillariophyta) Acaryochloris (Chl d/a cyanobacteria) and Subterranean Clover (Trifolium subterraneum, Papilionaceae, Angiospermae). Effective quantum yield (Phi(PSII)) versus irradiance curves could be described by a simple exponential decay function (Phi(PSII) = Phi(PSII, maxe(-kE)) although Log/Log transformation was sometimes found to be necessary to obtain the best fits. Photosynthesis was measured as relative Electron Transport Rate (rETR) standardised on a chlorophyll basis. P versus E curves were fitted to the waiting-in-line function (an equation of the form P = P(max) x k x E x e(-kE)) allowing half-saturating and optimal irradiances (E(optimum)) to be estimated. The second differential of the equation shows that at twice optimal light intensities, there is a point of inflection in the P versus E curve. Photosynthesis is inhibited 26.4% at this point of inflection. The waiting-in-line model was found to be a very good descriptor of photosynthetic light saturation curves and superior to hyperbolic functions with an asymptotic saturation point (Michaelis-Menten, exponential saturation and hyperbolic tangent). The exponential constants (k) of the Phi(PSII) versus E and P versus E curves should be equal because rETR is directly proportional to Phi(PSII) x E. The conventionally calculated Non-Photochemical Quenching (NPQ) in Synechococcus was not significantly different to zero but NPQ versus E curves for the other algae could be fitted to an exponential saturation model. The kinetics of NPQ does not appear to be related to the kinetics of Phi(PSII) or rETR.
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