Four studies are being conducted at the UJI to improve plant resistance and the use of wastewater without pollutants for agriculture



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## Four studies are being conducted at the UJI to improve plant resistance and the use of wastewater without pollutants for agriculture

19/06/2023 |
SCP

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* [![ pei-agricultura PEI_Agricultura_Quimica_23DLL68](/com/investigacio/arxiu/noticies/2023/6/pei-agricultura/PEI_Agricultura_Quimica_23DLL68.jpg)](#)

Four projects carried out in the field of Agriculture and Chemistry at the Universitat Jaume I in Castelló have obtained more than six hundred thousand euros in the latest call for proposals of the Spanish Plan for Scientific and Technical Research and Innovation 2021-2023. This has allowed them to explore different techniques to deal with mites, develop natural compounds to mitigate the damage caused by Xanthomonas bacteria or identify the resistance mechanisms of plants such as tomatoes, as well as improving the quality of wastewater for agricultural use to avoid emerging pollutants.

The project **"Identifying common priming patterns during the induction of mycorrhizae-induced resistance in order to expand integrated pest management"**, directed by Víctor Flors Herrero and Paloma Sánchez Bel, of the [Plant Immunity and Biochemistry](https://www.uji.es/serveis/ocit/base/grupsinvestigacio/detall?codi=246) (PIB) research group, and endowed with a budget of 217,800 euros, studies the compatibility between Mycorrhizae Induced Resistance (MIR) and Integrated Pest Management (IPM) to deal with mite attacks on plants such as tomato and citrus.

To this end, they will carry out metabolomic, proteomic and transcriptomic studies of mycorrhizal plants at different times after mite infestation. The impact of MIR on the agro-ecosystem with plants of the same and different species will also be studied, together with the relevance of airborne and soil-mediated communication between the sending and receiving plants. The study also aims to determine whether the exchange of signals, whether aerial or below-ground, triggers defence responses in neighbouring plants.

The study **"Evaluation of biologically based control strategies against Xanthomonas and characterisation of the plant in herbaceous and woody crops (XANTHERWO)"**, led by Begonya Vicedo Jover and Gemma Camañes Querol, of the [Biochemistry and Biotechnology group](https://www.uji.es/serveis/ocit/base/grupsinvestigacio/detall?codi=003) (BBuji), and funded with 151,250 euros, seeks to develop easily applicable natural compounds that are an effective solution to mitigate the damage caused by bacteria of the genus Xanthomonas, responsible for a variety of plant pathologies, such as those affecting tomatoes, peppers or fruit trees such as peach and almond.

The research team analyses the efficacy of tools that are effective for other pathogens and tests the control methods on seeds, as this is one of the main ways in which the disease spreads. There are currently no solutions on the market capable of effectively controlling this pathogen, so the results could have a major scientific, economic and environmental impact.

The project "**Moving towards the reuse of wastewater for agricultural irrigation: The problem of emerging pollutants**" directed by Elena Pitarch Arquimbau and Félix Hernández, of the [Analytical Chemistry in Public Health and Environment Group](https://www.uji.es/serveis/ocit/base/grupsinvestigacio/detall?codi=005) (Q-AMS), and endowed with a budget of 127,050 euros, addresses the issue of wastewater reuse following the application of advanced analytical techniques based on chromatography coupled to mass spectrometry in order to detect the presence of emerging contaminants.

For experimentation purposes, a small-scale citrus plot irrigated with wastewater before and after advanced treatment is used. The assessment of the presence of pollutants in different parts of the plant and in the soil, as well as the measurement of physiological parameters of citrus plants, provides insight into the magnitude of pollutant transfer between the different compartments and the risks to human health from unplanned water reuse activities.

The study entitled **"Multifactorial combined stress as a driver of the decline of growth and survival of tomato plants (MULTIPlant)"**, led by Sara Izquierdo Zandalinas and José Luis Rambla Nebot, of the [Ecophysiology and Biotechnology Group](https://www.uji.es/serveis/ocit/base/grupsinvestigacio/detall?codi=122), seeks to determine the key mechanisms used by tomato plants in response to the multifactorial combination of different abiotic stresses. Special emphasis is placed on plant hormones and their relationship with other components such as metabolites, with the aim of improving the plants' tolerance to such stresses .

The results obtained in this project could be used in one of the most difficult challenges of plant breeding programmes, namely, the development of varieties with improved growth and tolerance to the foreseeable climatic conditions of the near future, because abiotic stress situations such as drought, heat, salinity or high light intensity, coupled with unfavourable soil conditions due to human activity, result in a decrease in crop productivity all over the world.

**SPANISH NATIONAL RESEARCH PLAN**

The research staff at the Universitat Jaume I of Castelló have obtained 4.17 million euros from the Spanish Research Agency, almost twice as much as in the previous call, for the development of 38 new research projects of the Spanish Plan for Scientific and Technical Research and Innovation 2021-2023, which focuses on the most strategic sectors for recovery, such as health, ecological transition and digitalisation.

The success rate (number of projects approved out of the total number submitted) is 70% (the national average being 50%). Moreover, the average amount of funding per project is around 110,000 euros and there are 14 projects more than in the previous edition. With the 2021 call, the Universitat Jaume I has obtained 23.7 million euros of funding for R&D and innovation since the launch of the Spanish Strategy for Science, Technology and Innovation a decade ago.

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