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Article
Stem photosynthetic efficiency across woody angiosperms and gymnosperms with contrasting drought tolerance
Stem photosynthesis seems to play an adaptive role for woody plants that prosper in hot and dry ecosystems.
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Article
Open AccessRole of an ancient light-harvesting protein of PSI in light absorption and photoprotection
Diverse algae of the red lineage possess chlorophyll a-binding proteins termed LHCR, comprising the PSI light-harvesting system, which represent an ancient antenna form that evolved in red algae and was acquired ...
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Article
Open AccessHigher order photoprotection mutants reveal the importance of ΔpH-dependent photosynthesis-control in preventing light induced damage to both photosystem II and photosystem I
Although light is essential for photosynthesis, when in excess, it may damage the photosynthetic apparatus, leading to a phenomenon known as photoinhibition. Photoinhibition was thought as a light-induced dama...
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Chapter
Potential of Microalgae Biomass for the Sustainable Production of Bio-commodities
Human activities are causing major negative environmental impacts, and the development of sustainable processes for production of commodities is a major urgency. Plant biomass represents a valuable alternative...
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Article
Plant biodiversity and regulation of photosynthesis in the natural environment
Investigation of photosynthesis regulation in different plant groups exposed to variable conditions showed that all species have similar photosynthetic electron transport modulation while excess energy dissipa...
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Chapter
Optimization of Microalgae Photosynthetic Metabolism to Close the Gap with Potential Productivity
Microalgae metabolism is powered only by sustainable energy and carbon sources, representing a valuable alternative to develop clean industrial processes. Moreover, this group of unicellular photosynthetic mic...
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Article
Influence of light and temperature on growth and high-value molecules productivity from Cyanobacterium aponinum
Cyanobacterium aponinum is a thermotolerant cyanobacterium species isolated from different thermal springs and showing potential therapeutic application thanks to the synthesis and releas...
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Article
Photoacclimation of photosynthesis in the Eustigmatophycean Nannochloropsis gaditana
Nannochloropsis is an eukaryotic alga of the phylum Heterokonta, originating from a secondary endosymbiotic event. In this work, we investigated how the photosynthetic apparatus responds ...
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Article
Effect of specific light supply rate on photosynthetic efficiency of Nannochloropsis salina in a continuous flat plate photobioreactor
In this work, Nannochloropsis salina was cultivated in a continuous-flow flat-plate photobioreactor, working at different residence times and irradiations to study the effect of the specific light supply rate on ...
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Article
Open AccessGeneration of random mutants to improve light-use efficiency of Nannochloropsis gaditana cultures for biofuel production
The productivity of an algal culture depends on how efficiently it converts sunlight into biomass and lipids. Wild-type algae in their natural environment evolved to compete for light energy and maximize indiv...
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Article
Biochemical characterization and genetic identity of an oil-rich Acutodesmus obliquus isolate
Microalgae provide one of the more promising strategies for the production of renewable biodiesel and liquid fuels. Coupling biodiesel production and wastewater treatment based on the use of microalgae can be ...
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Article
Cultivation of Scenedesmus obliquus in Photobioreactors: Effects of Light Intensities and Light–Dark Cycles on Growth, Productivity, and Biochemical Composition
One of the main parameters influencing microalgae production is light, which provides energy to support metabolism but, if present in excess, can lead to oxidative stress and growth inhibition. In this work, t...
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Chapter
Molecular Mechanisms for Activation of Non-Photochemical Fluorescence Quenching: From Unicellular Algae to Mosses and Higher Plants
All oxygenic photosynthetic organisms have mechanisms for regulation of light-harvesting efficiency in response to variable light intensity. Non-photochemical quenching of chlorophyll fluorescence (NPQ) is a m...
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Chapter
Assembly of Light Harvesting Pigment-Protein Complexes in Photosynthetic Eukaryotes
In photosynthetic eukaryotes, the antenna system includes members of a protein family of Light-harvesting complexes encoded by the Lhc genes. These proteins bind 8–14 chlorophylls (Chls) and 2–4 carotenoid mol...
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Article
Mutagenesis and phenotypic selection as a strategy toward domestication of Chlamydomonas reinhardtii strains for improved performance in photobioreactors
Microalgae have a valuable potential for biofuels production. As a matter of fact, algae can produce different molecules with high energy content, including molecular hydrogen (H2) by the activity of a chloroplas...
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Article
A plant secretory signal peptide targets plastome-encoded recombinant proteins to the thylakoid membrane
Plastids are considered promising bioreactors for the production of recombinant proteins, but the knowledge of the mechanisms regulating foreign protein folding, targeting, and accumulation in these organelles...
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Article
Revised assignment of room-temperature chlorophyll fluorescence emission bands in single living cells of Chlamydomonas reinhardtii
Room temperature (RT) microspectrofluorimetry in vivo of single cells has a great potential in photosynthesis studies. In order to get new information on RT chlorophyll fluorescence bands, we analyzed the spec...
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Article
Purification of structurally intact grana from plants thylakoids membranes
Thylakoid membranes in higher plant chloroplasts are composed by two distinct domains: stacked grana and stroma lamellae. We developed a procedure for biochemical isolation of grana membranes using mild deterg...
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Article
Open AccessAntenna complexes protect Photosystem I from Photoinhibition
Photosystems are composed of two moieties, a reaction center and a peripheral antenna system. In photosynthetic eukaryotes the latter system is composed of proteins belonging to Lhc family. An increasing set o...
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Chapter and Conference Paper
Kinetic Description of Energy and Charge transfer Processes in PSI from Arabidopsis thaliana
The energy and electron transfer processes in Photosystem I core and intact particles have been studied. Evidence is provided for location of the ‘red’ chlorophylls outside the core complex. The influence of t...
