José Manuel Palma

Reactive Oxygen and Nitrogen Species in Plants―2nd Edition

Francisco J. Corpas, Rosa Maria Rivero, José Manuel Palma

Although hydrogen peroxide (H2O2) and nitric oxide (NO) are widely recognized for their signaling functions [...]

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Garlic-released NO and H2S modulate Arabidopsis metabolism by reshaping redox balance and redox-dependent post-translational modifications

Francisco J. Corpas, Salvador González‐Gordo, María Ángeles Muñoz-Vargas, Marta Rodríguez-Ruiz et autres

Nitric oxide (NO) and hydrogen sulfide (H 2 S) are key gasotransmitters acting as signaling molecules in plants and animals. Garlic, known for its sulfur-rich compounds, had not previously been identified as a source of NO or H 2 S emission. Using …

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Identification and Regulation of Melatonin Biosynthetic Genes in Sweet Pepper During Ripening and Melatonin Treatment

Jorge Taboada, Lourdes Sánchez-Moreno, José Manuel Palma, Francisco J. Corpas

Since its discovery in higher plants, melatonin has attracted considerable attention for its antioxidant properties and its diverse roles in plant physiology and stress responses. However, its biosynthetic pathway remains only partially elucidated, particularly in horticultural crops of economic and nutritional importance, …

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Permutation-based multi-objective evolutionary feature selection for high-dimensional data

Raquel Espinosa, Gracia Sánchez, José Manuel Palma, FERNANDO GARCIA JIMENEZ

Abstract Feature selection is a critical step in the analysis of high-dimensional data, where the number of features often vastly exceeds the number of samples. Effective feature selection not only improves model performance and interpretability but also reduces computational costs and mitigates …

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Professor Luis A. del Río: a life devoted to understanding ROS and RNS in plant peroxisomes

José Manuel Palma, Francisco J. Corpas

Professor Luis Alfonso del Río passed away on 18 November 2025. He was born in Asturias, Spain, on 13 December 1943, and spent most of his scientific career at the Estación Experimental del Zaidín (Spanish National Research Council, CSIC) in Granada, Spain. …

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Integration of NO and H2S signaling in higher plants

Francisco J. Corpas, Jorge Taboada, José Manuel Palma

S operate through a dual "butterfly" signaling mechanism, exerting either promotive or inhibitory effects, depending on the physiological context.

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EPR-detected NO biosynthesis via nitrate reductase in non-climacteric pepper fruit: downregulation by ripening, peroxynitrite and H2S

Francisco J. Corpas, Jorge Taboada, Beatriz Sánchez‐Romera, Dandan Huang et autres

This study presents the first direct evidence of nitric oxide ( • NO) production in ripening pepper fruits ( Capsicum annuum L.) and identifies the specific enzyme responsible for its generation. By clarifying the enzymatic origin of • NO, this research enhances …

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Knowledge Graphs for Digital Humanities and Linguistics

Krzysztof Kutt, Luiz do Valle Miranda, Jakub Gomułka, Ricardo Alonso-Maturana et autres

The foundation of transdisciplinary work is the integration of knowledge from different domains into a cohesive project. What enables such an integration are the possibilities of sharing, access and the joint analysis of field-specific expertise. Knowledge graphs are a prominent conceptual framework …

Endogenous NO fluctuations in Arabidopsis leaves influence peroxisomal activities and ROS, NADPH, and H2S metabolism

Francisco J. Corpas, Salvador González‐Gordo, María Ángeles Muñoz-Vargas, Marta Rodríguez-Ruiz et autres

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Identification of Peroxiredoxin (PRX) Genes from Pepper Fruits: Involvement in Ripening and Modulation by Nitric Oxide (NO)

Fátima Ramírez-Mellado, Salvador González‐Gordo, José Manuel Palma, Francisco J. Corpas

Peroxiredoxins (Prxs; EC 1.11.1.15) are a group of thiol peroxidases that catalyze the detoxification of H2O2 and other organic hydroperoxides. The ripening of pepper (Capsicum annuum L.) fruit involves significant phenotypic, physiological, and biochemical changes. Based on the available pepper plant genome, …

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H2O2-generating polyamine oxidases (PAOs) are modulated during sweet pepper ripening: Spermine oxidase (SpmOX) as a case study of post-translational modification regulation

María Ángeles Muñoz-Vargas, Jorge Taboada, José Manuel Palma, Francisco J. Corpas

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Functions of Endogenously Produced and Exogenously Applied Melatonin in Higher Plants

Francisco J. Corpas, Jorge Taboada, Rosa Maria Rivero, Russel J. Reiter et autres

Significance:The role of melatonin (MEL) in plants has gained significant relevance due to its involvement in a wide range of physiological functions, particularly in response mechanisms to both abiotic and biotic stresses. Recent Advances:Recent progress highlights the significance of the biosynthetic pathway …

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