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Article
Open AccessImplicating the red body of Nannochloropsis in forming the recalcitrant cell wall polymer algaenan
Stramenopile algae contribute significantly to global primary productivity, and one class, Eustigmatophyceae, is increasingly studied for applications in high-value lipid production. Yet much about their basic...
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Article
Open AccessA hemoprotein with a zinc-mirror heme site ties heme availability to carbon metabolism in cyanobacteria
Heme has a critical role in the chemical framework of the cell as an essential protein cofactor and signaling molecule that controls diverse processes and molecular interactions. Using a phylogenomics-based ap...
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Article
Open AccessMacroscale structural changes of thylakoid architecture during high light acclimation in Chlamydomonas reinhardtii
Photoprotection mechanisms are ubiquitous among photosynthetic organisms. The photoprotection capacity of the green alga Chlamydomonas reinhardtii is correlated with protein levels of stress-related light-harvest...
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Article
Open AccessKinetics of the xanthophyll cycle and its role in photoprotective memory and response
Efficiently balancing photochemistry and photoprotection is crucial for survival and productivity of photosynthetic organisms in the rapidly fluctuating light levels found in natural environments. The ability ...
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Article
Open AccessSystematic characterization of gene function in the photosynthetic alga Chlamydomonas reinhardtii
Most genes in photosynthetic organisms remain functionally uncharacterized. Here, using a barcoded mutant library of the model eukaryotic alga Chlamydomonas reinhardtii, we determined the phenotypes of more than ...
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Article
Open AccessHigh light and temperature reduce photosynthetic efficiency through different mechanisms in the C4 model Setaria viridis
C4 plants frequently experience high light and high temperature conditions in the field, which reduce growth and yield. However, the mechanisms underlying these stress responses in C4 plants have been under-explo...
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Article
Quantitative imaging of RNA polymerase II activity in plants reveals the single-cell basis of tissue-wide transcriptional dynamics
The responses of plants to their environment are often dependent on the spatiotemporal dynamics of transcriptional regulation. While live-imaging tools have been used extensively to quantitatively capture rapi...
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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 AccessThe role of mixed vibronic Qy-Qx states in green light absorption of light-harvesting complex II
The importance of green light for driving natural photosynthesis has long been underappreciated, however, under the presence of strong illumination, green light actually drives photosynthesis more efficiently ...
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Article
Open AccessVibronic mixing enables ultrafast energy flow in light-harvesting complex II
Since the discovery of quantum beats in the two-dimensional electronic spectra of photosynthetic pigment-protein complexes over a decade ago, the origin and mechanistic function of these beats in photosyntheti...
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Article
An atypical short-chain dehydrogenase–reductase functions in the relaxation of photoprotective qH in Arabidopsis
Photosynthetic organisms experience wide fluctuations in light intensity and regulate light harvesting accordingly to prevent damage from excess energy. The antenna quenching component qH is a sustained form o...
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Article
Open AccessHexokinase is necessary for glucose-mediated photosynthesis repression and lipid accumulation in a green alga
Global primary production is driven largely by oxygenic photosynthesis, with algae as major contributors. The green alga Chromochloris zofingiensis reversibly switches off photosynthesis in the presence of glucos...
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Article
A unique supramolecular organization of photosystem I in the moss Physcomitrella patens
The photosynthesis machinery in chloroplast thylakoid membranes is comprised of multiple protein complexes and supercomplexes1,2. Here, we show a novel supramolecular organization of photosystem I (PSI) in the mo...
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Article
Open AccessPhotosystem II Subunit S overexpression increases the efficiency of water use in a field-grown crop
Insufficient water availability for crop production is a mounting barrier to achieving the 70% increase in food production that will be needed by 2050. One solution is to develop crops that require less water ...
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Article
Photosynthetic antenna engineering to improve crop yields
Evidence shows that decreasing the light-harvesting antenna size of the photosystems in tobacco helps to increase the photosynthetic productivity and plant canopy biomass accumulation under hig...
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Article
Two mechanisms for dissipation of excess light in monomeric and trimeric light-harvesting complexes
Oxygenic photoautotrophs require mechanisms for rapidly matching the level of chlorophyll excited states from light harvesting with the rate of electron transport from water to carbon dioxide. These photoprote...
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Article
Evolution of an atypical de-epoxidase for photoprotection in the green lineage
Plants, algae and cyanobacteria need to regulate photosynthetic light harvesting in response to the constantly changing light environment. Rapid adjustments are required to maintain fitness because of a trade-...
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Article
Erratum: Lineage-specific chromatin signatures reveal a regulator of lipid metabolism in microalgae
Nature Plants 1, 15107 (2015); published online 27 July 2015; corrected 29 September 2015. In the version of this Article originally published, the author affiliations were incorrect. These have been corrected.
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Lineage-specific chromatin signatures reveal a regulator of lipid metabolism in microalgae
Alga-derived lipids represent an attractive potential source of biofuels. However, lipid accumulation in algae is a stress response tightly coupled to growth arrest, thereby imposing a major limitation on prod...
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Chapter
PsbS-Dependent Non-Photochemical Quenching
Much of the research on the thermal dissipation of excess absorbed light, measured as non-photochemical quenching (NPQ) of chlorophyll fluorescence, has been focused on a major, rapidly induced and rapidly rev...
