A5032503564- Photosynthetic Processes and Mechanisms
- Plant Stress Responses and Tolerance
- Algal biology and biofuel production
- Photoreceptor and optogenetics research
- Plant nutrient uptake and metabolism
- Light effects on plants
- Mitochondrial Function and Pathology
- Antioxidant Activity and Oxidative Stress
Institut de Biologie Intégrative de la Cellule
2020-2023
Université Paris-Saclay
2018-2023
Centre National de la Recherche Scientifique
2018-2023
CEA Paris-Saclay
2021-2023
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2018-2023
Université Paris-Sud
2018
Abstract Manganese (Mn) is an essential metal for plant growth. The most important Mn-containing enzyme the Mn4CaO5 cluster that catalyzes water oxidation in photosystem II (PSII). Mn deficiency primarily affects photosynthesis, whereas excess generally toxic. Here, we studied and liverwort Marchantia polymorpha, emerging model ideally suited analysis of stress since it accumulates rapidly toxic substances due to absence well-developed vascular radicular systems a reduced cuticle. We...
Bicarbonate removal from the nonheme iron at acceptor side of photosystem II (PSII) was shown recently to shift midpoint potential primary quinone QA a more positive and lowers yield singlet oxygen (1O2) production. The presence − results in weaker binding bicarbonate, suggesting redox-based regulatory protective mechanism where loss bicarbonate or exchange by other small carboxylic acids may protect PSII against 1O2 vivo under photorespiratory conditions. Here, we compared properties...
SUMMARY The plastid terminal oxidase PTOX controls the oxidation level of plastoquinone pool in thylakoid membrane and acts as a safety valve upon abiotic stress, but detailed characterization its role protecting photosynthetic apparatus is limited. Here we used mutants two model plants Arabidopsis thaliana Marchantia polymorpha . In Arabidopsis, lack leads to severe defect pigmentation, so‐called variegated phenotype, when are grown at standard light intensities. We created green mutant...
Abstract Manganese is an essential metal for plant growth. The most important Mn-containing enzyme the Mn 4 CaO 5 cluster that catalyses water oxidation in Photosystem II. deficiency primarily affects photosynthesis, while excess generally toxic. and were studied liverwort Marchantia polymorpha , emerging model ideally suited analysis of stress since it accumulates rapidly toxic substances due to absence well-developed vascular radicular systems a reduced cuticle. We established growth...