Planta Med 2023; 89(14): 1353
DOI: 10.1055/s-0043-1774044
Abstracts
Tuesday 4th July 2023 | Poster Session II
Phytochemistry II – General

Intercropping the edible halophyte Arthrocaulon macrostachyum with commercial tomato to phytoremediate saline soils and obtain high added value products

Luísa Custódio
1   Centre of Marine Sciences (CCMAR), University of Algarve, Faculty of Sciences and Technology, Building 7, Campus of Gambelas, Faro, Portugal
,
Maria João Rodrigues
1   Centre of Marine Sciences (CCMAR), University of Algarve, Faculty of Sciences and Technology, Building 7, Campus of Gambelas, Faro, Portugal
,
Tiago Braga
1   Centre of Marine Sciences (CCMAR), University of Algarve, Faculty of Sciences and Technology, Building 7, Campus of Gambelas, Faro, Portugal
,
Aida Selmi
2   Laboratory of Extremophile Plants, Centre of Biotechnology of Borj Cedria, PB 901, Hammam- Lif, 2050, Tunisia
,
Karim Ben Hamed
2   Laboratory of Extremophile Plants, Centre of Biotechnology of Borj Cedria, PB 901, Hammam- Lif, 2050, Tunisia
› Institutsangaben
 
 

    This work evaluated the effect of intercropping a moderate salt-sensitive tomato cultivar with the edible halophyte Arthrocaulon macrostachyum, on the soil chemical properties, plant productivity, and biochemical properties of produced biomass. Cultivation occurred in an open field located in Tunisia, where conductivity of the irrigation water and soil reaches 3.64 and 3 dS/m, respectively. The experimental design comprised Arthrocaulon monoculture, Arthrocaulon and tomato intercropping, and tomato monoculture, under drip irrigation. Plants were evaluated for productivity, soil for chemical properties, and biomass was collected and used to prepare food grade extracts, that were appraised for bioactivities (phenolics, antioxidant and enzyme inhibitory properties), and metabolomics (LC-ESI-HRMS/MS). Intercropping allowed for a reduction in the soil salt levels, and increased tomato productivity. Produced biomass was rich in phenolics, and displayed antioxidant and enzyme inhibitory properties. Our results suggest that the tested system can phytoremediate the saline soil, increase the productivity of the commercial crop (tomato) and produce biomass enriched in biocompounds with high added value.

    Funding This work received Portuguese national funds from FCT – Foundation for Science and Technology through projects UIDB/04326/2020, UIDP/04326/2020 and LA/P/0101/2020; FCT program contract (UIDP/04326/2020: MJR) and FCT Scientific Employment Stimulus (CEECIND/00425/2017: LC). It was also funded by the project HaloFarMs (PRIMA/0002/2019), which is part of the Partnership on Research and Innovation in the Mediterranean Area (PRIMA) Program supported by the European Union and funded by the national funding bodies of Participating States (FCT in Portugal, MHESR in Tunisia).


    Conflict of Interest

    The authors declare no conflict of interest.

    Publikationsverlauf

    Artikel online veröffentlicht:
    16. November 2023

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