K. K. Niyogi

Editing cis-regulatory elements towards generating rice stomatal morphological variation for adaptation to broad and dynamic environments

This study edits cis-regulatory elements in rice to generate stomatal density variation, linking morphological changes to physiological traits and drought response.

Multiplexed CRISPR/Cas9 mutagenesis of rice PSBS1 non-coding sequences for transgene-free overexpression

This study uses CRISPR/Cas9 to generate transgene-free overexpression alleles of rice PSBS1, showing increased protein abundance and improved water-use efficiency.

Chlorophyll to Zeaxanthin Energy Transfer in Non-Photochemical Quenching: An Exciton Annihilation-free Transient Absorption Study

This study uses EEA-free transient absorption to show Chl to Zea energy transfer during qE and reduced exciton diffusion under high light.

A proposed function for the red body of Nannochloropsis in the formation of the recalcitrant cell wall polymer, algaenan

The paper investigates the role of the red body in Nannochloropsis oceanica in transporting algaenan precursors to the cell wall during cell division.

Iron rescues glucose-mediated photosynthesis repression during lipid accumulation in the green alga Chromochloris zofingiensis

The phycobilisome linker protein ApcG interacts with photosystem II and regulates energy transfer to photosystem I in Synechocystis sp. PCC 6803

This study identifies ApcG as a PBS linker protein in Synechocystis sp. PCC 6803 that interacts with PSII and regulates energy transfer to PSI through phosphorylation.

Modulation of xanthophyll cycle impacts biomass productivity in the marine microalga Nannochloropsis

This study shows that modulating the xanthophyll cycle in Nannochloropsis microalgae affects photoprotection and biomass productivity, with zeaxanthin accumulation being beneficial under strong light but costly under low light.

FtsH Protease Inactivation Allows Accumulation of Aberrant Photosystem II in a Chlamydomonas Rubredoxin Mutant

The paper shows that inactivating FtsH protease in a Chlamydomonas mutant lacking RBD1 allows accumulation of aberrant PSII complexes, suggesting RBD1 aids D1 protein folding during PSII assembly.

Metabolomic, photoprotective, and photosynthetic acclimatory responses to post-flowering drought in sorghum

The paper investigates drought tolerance in sorghum by analyzing metabolomic, physiological, and transcriptomic responses to post-flowering drought in two genotypes.

Interplay between LHCSR proteins and state transitions governs the NPQ response in intact cells of Chlamydomonas during light fluctuations.

The paper shows that LHCSR proteins and state transitions interact to regulate NPQ dynamics in Chlamydomonas during light fluctuations.

Paralog editing tunes rice stomatal density to maintain photosynthesis and improve drought tolerance

The paper edits paralogs of STOMAGEN in rice to reduce stomatal density, improving drought tolerance without compromising photosynthesis.

Chromatin changes in PIF-regulated genes parallel their rapid transcriptional response to light

The paper identifies light-responsive genes regulated by PIF and shows that chromatin changes, specifically H3K9 acetylation, parallel rapid transcriptional responses to light.

An energy-dissipative state of the major antenna complex of plants

The paper investigates the energy-dissipative state of the major antenna complex in plants under qH conditions and proposes chlorophyll-chlorophyll excitonic interactions as the mechanism.

Macroscale structural changes of thylakoid architecture during high light acclimation in Chlamydomonas reinhardtii

This study investigates thylakoid structural changes in Chlamydomonas reinhardtii during high light acclimation using microscopy and membrane fractionation, finding structural changes occur independently of LHCSR levels but are influenced by antenna protein phosphorylation.

High Light and High Temperature Reduce Photosynthesis via Different Mechanisms in the C4 Model Setaria viridis

This study examines how high light and high temperature affect photosynthesis in Setaria viridis, revealing distinct mechanisms and acclimation strategies in C4 plants.

Discovery of photosynthesis genes through whole-genome sequencing of acetate-requiring mutants of Chlamydomonas reinhardtii

The paper sequenced genomes of photosynthesis mutants in Chlamydomonas reinhardtii to identify candidate genes involved in photosynthesis, validating two essential genes and uncovering 273 high-confidence candidates.

Low photorespiratory capacity is sufficient to block the induction of photosynthetic capacity in high light

The paper shows that low photorespiratory capacity limits photosynthetic capacity induction in high light in Arabidopsis thaliana, and that this limitation can be overcome under non-photorespiratory conditions.

Variable optical properties of light-harvesting complex II revisited

The paper investigates how protein-protein interactions in LHCII affect its optical properties and energy dissipation mechanisms in photosynthesis.

Quantitative imaging of RNA polymerase II activity in plants reveals the single-cell basis of tissue-wide transcriptional dynamics

This study uses live-imaging to quantify RNA polymerase II activity in plant cells, revealing that transcriptional responses to stress involve changes in cell engagement rather than transcription rate.

Atomic force microscopy visualizes mobility of photosynthetic proteins in grana thylakoid membranes

This study uses high-speed atomic force microscopy to visualize and characterize the mobility of photosynthetic protein complexes in grana thylakoid membranes, revealing heterogeneous mobility patterns and rotational diffusion.