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21 results on '"González Hernández, Ana Isabel"'

5. The Dual Role of Antimicrobial Proteins and Peptides: Exploring Their Direct Impact and Plant Defense-Enhancing Abilities.

Author

Farvardin, Atefeh, González-Hernández, Ana Isabel, Llorens, Eugenio, Camañes, Gemma, Scalschi, Loredana, and Vicedo, Begonya

Subjects
SUSTAINABILITY, SUSTAINABLE agriculture, PHYTOPATHOGENIC microorganisms, DEFENSE mechanisms (Psychology), ANTIMICROBIAL peptides
Abstract

Plants face numerous environmental stresses that hinder their growth and productivity, including biotic agents, such as herbivores and parasitic microorganisms, as well as abiotic factors, such as cold, drought, salinity, and high temperature. To counter these challenges, plants have developed a range of defense strategies. Among these, plant antimicrobial proteins and peptides (APPs) have emerged as a promising solution. Due to their broad-spectrum activity, structural stability, and diverse mechanisms of action, APPs serve as powerful tools to complement and enhance conventional agricultural methods, significantly boosting plant defense and productivity. This review focuses on different studies on APPs, emphasizing their crucial role in combating plant pathogens and enhancing plant resilience against both biotic and abiotic stresses. Beginning with in vitro studies, we explore how APPs combat various plant pathogens. We then delve into the defense mechanisms triggered by APPs against biotic stress, showcasing their effectiveness against bacterial and fungal diseases. Additionally, we highlight the role of APPs in mitigating the abiotic challenges associated with climatic change. Finally, we discuss the current applications of APPs in agriculture, emphasizing their potential for sustainable agricultural practices and the need for future research in this area. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Effect of water deficit on the grain yield and quality of wheat under combined elevated CO2 and high temperature.

Author

Ministerio de Ciencia, Innovación y Universidades (España), Junta de Castilla y León, Bueno Ramos, Nara [0000-0002-7451-6427], González‐Hernández, Ana I. [0000-0003-4023-8649], Marcos Barbero, Emilio L. [0000-0001-5649-2401], Bendou, Ouardia [0000-0002-6157-8020], Gutiérrez Fernández, Ismael [0000-0002-0550-4027], Arellano, Juan B. [0000-0001-8677-8697], Morcuende, Rosa [0000-0002-1662-3961], Bueno Ramos, Nara, González Hernández, Ana Isabel, Marcos Barbero, Emilio L., Bendou, Ouardia, Gutiérrez Fernández, Ismael, Boyero, M. Ángeles, Verdejo, Ángel L., Arellano, Juan B., Morcuende, Rosa, Ministerio de Ciencia, Innovación y Universidades (España), Junta de Castilla y León, Bueno Ramos, Nara [0000-0002-7451-6427], González‐Hernández, Ana I. [0000-0003-4023-8649], Marcos Barbero, Emilio L. [0000-0001-5649-2401], Bendou, Ouardia [0000-0002-6157-8020], Gutiérrez Fernández, Ismael [0000-0002-0550-4027], Arellano, Juan B. [0000-0001-8677-8697], Morcuende, Rosa [0000-0002-1662-3961], Bueno Ramos, Nara, González Hernández, Ana Isabel, Marcos Barbero, Emilio L., Bendou, Ouardia, Gutiérrez Fernández, Ismael, Boyero, M. Ángeles, Verdejo, Ángel L., Arellano, Juan B., and Morcuende, Rosa

Abstract

Wheat is an essential cereal in human nutrition. It provides 20% of the calories in daily intake and is an important source of proteins, carbhydrates, minerals, vitamins, and phytochemicales. In the coming decades, the globla demand for wheat will increase with the growing population worldwide, whereas its procutivity may decrease due to climate change.

Published
2023

11. Exploiting Tomato Genotypes to Understand Heat Stress Tolerance

Author

Fernández-Crespo, Emma, primary, Liu-Xu, Luisa, additional, Albert-Sidro, Carlos, additional, Scalschi, Loredana, additional, Llorens, Eugenio, additional, González-Hernández, Ana Isabel, additional, Crespo, Oscar, additional, Gonzalez-Bosch, Carmen, additional, Camañes, Gemma, additional, García-Agustín, Pilar, additional, and Vicedo, Begonya, additional

Published
2022
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12. Physiological and Antioxidant Response to Different Water Deficit Regimes of Flag Leaves and Ears of Wheat Grown under Combined Elevated CO2 and High Temperature

Author

Biología vegetal y ecología, Landaren biologia eta ekologia, Bendou, Ouardia, Gutiérrez Fernández, Ismael, Marcos Barbero, Emilio Luis, Bueno Ramos, Nara, Miranda González de Apodaca, Jon, González Hernández, Ana Isabel, Morcuende, Rosa, Arellano, Juan B., Biología vegetal y ecología, Landaren biologia eta ekologia, Bendou, Ouardia, Gutiérrez Fernández, Ismael, Marcos Barbero, Emilio Luis, Bueno Ramos, Nara, Miranda González de Apodaca, Jon, González Hernández, Ana Isabel, Morcuende, Rosa, and Arellano, Juan B.

Abstract

Triticum aestivum L. cv. Gazul is a spring wheat widely cultivated in Castilla y León (Spain). Potted plants were grown in a scenario emulating the climate change environmental conditions expected by the end of this century, i.e., with elevated CO2 and high temperature under two water deficit regimes: long (LWD) and terminal (TWD). Changes in biomass and morphology, the content of proline (Pro), ascorbate (AsA) and glutathione (GSH), and enzymatic antioxidant activities were analyzed in flag leaves and ears. Additionally, leaf gas exchange was measured. LWD caused a decrease in biomass and AsA content but an increase in Pro content and catalase and GSH reductase activities in flag leaves, whereas TWD produced no significant changes. Photosynthesis was enhanced under both water deficit regimes. Increase in superoxide dismutase activity and Pro content was only observed in ears under TWD. The lack of a more acute effect of LWD and TWD on both organs was attributed to the ROS relieving effect of elevated CO2. Gazul acted as a drought tolerant variety with anisohydric behavior. A multifactorial analysis showed better adaptation of ears to water deficit than flag leaves, underlining the importance of this finding for breeding programs to improve grain yield under future climate change.

Published
2022

17. The Apoplast: A Key Player in Plant Survival

Author

Farvardin, Atefeh, primary, González-Hernández, Ana Isabel, additional, Llorens, Eugenio, additional, García-Agustín, Pilar, additional, Scalschi, Loredana, additional, and Vicedo, Begonya, additional

Published
2020
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19. New approaches to control Pseudomonas syringae disease in tomato plants

Author

González Hernández, Ana Isabel, García Agustín, Pilar, Camañes Querol, Gemma, and Universitat Jaume I. Escola de Doctorat

Subjects
Bacterial speck, Tomato plants, Agricultura, ramaderia, pesca, silvicultura i veterinària, Pseudomonas syringae, Ammonium nutrition, Induced resistance, Root architecture
Abstract

Las plagas y enfermedades son factores a tener en cuenta ya que producen elevadas pérdidas en la producción de los cultivos. Actualmente, la búsqueda de compuestos no perjudiciales para el medioambiente y que sean capaces de inducir los mecanismos de defensa en las plantas frente a estreses es un tema prioritario. Por ello, el objetivo de esta tesis ha sido estudiar el mecanismo de inducción de defensa de los compuestos heptagluconato de cobre, 1-metiltriptófano (1-MT) y amonio, en el patosistema tomate-P. syringae. De forma general, el heptagluconato de cobre induce compuestos fenólicos, el 1-MT induce el cierre estomático y afecta al contenido del apoplasto y a la motilidad de la bacteria y, el amonio produce una reprogramación del metabolismo primario. Además, se ha estudiado como se modifica la arquitectura radicular bajo distintas fuentes de N y C, observando que la adición de nitrato o compuestos carbonados al tratamiento con amonio alivia la toxicidad causada por éste. Pests and diseases are important factors to take into account in order to avoid losses in crop production. Nowadays, the search of new enviro-friendly compounds to induce defence mechanisms in plants to fight against plant diseases is a priority. Thus, the goal of this thesis has been to study the action mode of the enviro-friendly inducers of resistance copper-heptagluconate, 1-methyltryptophan (1-MT) and ammonium in tomato-P. syringae pathosystem. In general terms, Cu-heptagluconate induces phenolic compounds, 1-MT induces stomatal closure and affects apoplastic content and bacterial motility, and ammonium nutrition produces a primary metabolism reprogramming. Moreover, the study of changes at root level under nitrate and ammonium sources has been carried out, showing that the addition of nitrate or C compounds to ammonium treatment alleviates its mild toxicity. Programa de Doctorat en Ciències

Published
2019

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