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Physiological, molecular, and genetic mechanism of action of the biostimulant Quantis™ for increased thermotolerance of potato (Solanum tuberosum L.) (2024)
Journal Article
Jayaweera, D. P., Dambire, C., Angelopoulou, D., Munné-Bosch, S., Swarup, R., & Ray, R. V. (2024). Physiological, molecular, and genetic mechanism of action of the biostimulant Quantis™ for increased thermotolerance of potato (Solanum tuberosum L.). Chemical and Biological Technologies in Agriculture, 11(1), 9. https://doi.org/10.1186/s40538-023-00531-3

Background: Raising global temperatures limit crop productivity and new strategies are needed to improve the resilience of thermosensitive crops such as potato (Solanum tuberosum L.). Biostimulants are emerging as potential crop protection products a... Read More about Physiological, molecular, and genetic mechanism of action of the biostimulant Quantis™ for increased thermotolerance of potato (Solanum tuberosum L.).

ERFVII action and modulation through oxygen-sensing in Arabidopsis thaliana (2023)
Journal Article
Zubrycka, A., Dambire, C., Dalle Carbonare, L., Sharma, G., Boeckx, T., Swarup, K., …Holdsworth, M. J. (2023). ERFVII action and modulation through oxygen-sensing in Arabidopsis thaliana. Nature Communications, 14, Article 4665. https://doi.org/10.1038/s41467-023-40366-y

Oxygen is a key signalling component of plant biology, and whilst an oxygen-sensing mechanism was previously described in Arabidopsis thaliana, key features of the associated PLANT CYSTEINE OXIDASE (PCO) N-degron pathway and Group VII ETHYLENE RESPON... Read More about ERFVII action and modulation through oxygen-sensing in Arabidopsis thaliana.

A phloem‐localized Arabidopsis metacaspase (AtMC3) improves drought tolerance (2023)
Journal Article
Pitsili, E., Rodriguez‐Trevino, R., Ruiz‐Solani, N., Demir, F., Kastanaki, E., Dambire, C., …Coll, N. S. (2023). A phloem‐localized Arabidopsis metacaspase (AtMC3) improves drought tolerance. New Phytologist, https://doi.org/10.1111/nph.19022

Increasing drought phenomena pose a serious threat to agricultural productivity. Although plants have multiple ways to respond to the complexity of drought stress, the underlying mechanisms of stress sensing and signaling remain unclear. The role of... Read More about A phloem‐localized Arabidopsis metacaspase (AtMC3) improves drought tolerance.

An oxygen-sensing mechanism for angiosperm adaptation to altitude (2022)
Journal Article
Abbas, M., Sharma, G., Dambire, C., Marquez, J., Alonso-Blanco, C., Proaño, K., & Holdsworth, M. J. (2022). An oxygen-sensing mechanism for angiosperm adaptation to altitude. Nature, https://doi.org/10.1038/s41586-022-04740-y

Flowering plants (angiosperms) can grow at extreme altitudes, and have been observed growing as high as 6,400 metres above sea level1,2; however, the molecular mechanisms that enable plant adaptation specifically to altitude are unknown. One distingu... Read More about An oxygen-sensing mechanism for angiosperm adaptation to altitude.

Mitochondrial retrograde signaling through UCP1-mediated inhibition of the plant oxygen-sensing pathway (2022)
Journal Article
Barreto, P., Dambire, C., Sharma, G., Vicente, J., Osborne, R., De Carvalho, J. E., …Arruda, P. (2022). Mitochondrial retrograde signaling through UCP1-mediated inhibition of the plant oxygen-sensing pathway. Current Biology, 32(6), 1403-1411.e4. https://doi.org/10.1016/j.cub.2022.01.037

Mitochondrial retrograde signaling is an important component of intracellular stress signaling in eukaryotes. UNCOUPLING PROTEIN (UCP)1 is an abundant plant inner-mitochondrial membrane protein with multiple functions including uncoupled respiration... Read More about Mitochondrial retrograde signaling through UCP1-mediated inhibition of the plant oxygen-sensing pathway.

A Yeast-Based Functional Assay to Study Plant N-Degron – N-Recognin Interactions (2022)
Journal Article
Kozlic, A., Winter, N., Telser, T., Reimann, J., Rose, K., Nehlin, L., …Bachmair, A. (2022). A Yeast-Based Functional Assay to Study Plant N-Degron – N-Recognin Interactions. Frontiers in Plant Science, 12, Article 806129. https://doi.org/10.3389/fpls.2021.806129

The N-degron pathway is a branch of the ubiquitin-proteasome system where amino-terminal residues serve as degradation signals. In a synthetic biology approach, we expressed ubiquitin ligase PRT6 and ubiquitin conjugating enzyme 2 (AtUBC2) from Arabi... Read More about A Yeast-Based Functional Assay to Study Plant N-Degron – N-Recognin Interactions.

Oxygen-dependent proteolysis regulates the stability of angiosperm polycomb repressive complex 2 subunit VERNALIZATION2 (2018)
Journal Article
Gibbs, D. J., Tedds, H. M., Labandera, A., Bailey, M., White, M. D., Hartman, S., …Holdsworth, M. J. (2018). Oxygen-dependent proteolysis regulates the stability of angiosperm polycomb repressive complex 2 subunit VERNALIZATION2. Nature Communications, 9, Article 5438. https://doi.org/10.1038/s41467-018-07875-7

The polycomb repressive complex 2 (PRC2) regulates epigenetic gene repression in eukaryotes. Mechanisms controlling its developmental specificity and signal-responsiveness are poorly understood. Here, we identify an oxygen-sensitive N-terminal (N-) d... Read More about Oxygen-dependent proteolysis regulates the stability of angiosperm polycomb repressive complex 2 subunit VERNALIZATION2.

The Cys-Arg/N-end rule pathway is a general sensor of abiotic stress in flowering plants (2017)
Journal Article
Vicente, J., Mendiondo, G. M., Movahedi, M., Peirats-Llobet, M., Juan, Y., Shen, Y., …Holdsworth, M. J. (2017). The Cys-Arg/N-end rule pathway is a general sensor of abiotic stress in flowering plants. Current Biology, 27(20), Article 3183-3190.e4. https://doi.org/10.1016/j.cub.2017.09.006

Abiotic stresses impact negatively on plant growth, profoundly affecting yield and quality of crops. Although much is known about plant responses, very little is understood at the molecular level about the initial sensing of environmental stress. In... Read More about The Cys-Arg/N-end rule pathway is a general sensor of abiotic stress in flowering plants.