CBL - Campus del Baix Llobregat

Projecte llegit

Títol: Cultivo de microalgas en efluente cervecero para producción bioestimulantes

Estudiant que ha llegit aquest projecte:

Tutor/a o Cotutor/a: GREQUE DE MORAIS, ETIELE

Departament: DEAB

Títol: Cultivo de microalgas en efluente cervecero para producción bioestimulantes

Data inici oferta: 30-01-2024      Data finalització oferta: 30-09-2024

Estudis d'assignació del projecte:
    GR ENG ALIMENT 2016
    GR ENG SIS BIOLÒG 23

Lloc de realització:

UPC      Departament/centre: Group of Environmental Engineering - Campus Nord

Segon tutor/a (UPC): SERRANO PORTA, LIDIA

Paraules clau:
Bioestimulantes, Microalgas, Chlorella fusca, Spirulina platensis, Estrés hídrico

Descripció del contingut i pla d'activitats:
Cultivo de microalgas en efluente de la industria cervecera para producción de biomasa rica en proteínas y biestimulantes para producción de alimentos adicionados con biomasa microalgal, alimentación animal y biofertilizantes.

El TFG es para trabajar en la aplicación de los bioestimulantes producido atraves del cultivo de microalgas en efluente cervecero en tomate.

Es Charmi II.

Overview (resum en anglès): Climate change and the increasing scarcity of water are among the most important problems for crops today. In this context, it is becoming increasingly necessary to seek sustainable solutions to improve the resilience of these crops to such conditions. The use of biostimulants made from microalgae cultivated in wastewater is a potential sustainable solution to enhance crop resistance to water stress. The aim of this study was to observe how biostimulants based on the microalgae Chlorella fusca and Spirulina platensis influence the growth and physiology of lettuce plants (Lactuca sativa) under different levels of water stress. The experiment was conducted in two locations: the GEMMA laboratory (UPC, Campus Nord) and the EEABB campus (Castelldefels). Three irrigation levels were defined: control, moderate water stress, and severe stress. The biostimulants were applied via foliar spray, and throughout the trial several physiological parameters were measured daily: SPAD (relative chlorophyll content), stomatal conductance, transpiration, PhiPS2 (efficiency of photosystem 2), electron transport rate (ETR), and fresh weight at the end of the experiment. Additionally, a phytohormone analysis of the microalgal biomass was performed. No significant differences were found between biostimulant treatments in the physiological parameters, so the analysis focused on the effects of irrigation. As expected, water stress reduced certain physiological parameters such as transpiration and stomatal conductance. In terms of fresh weight, significant differences were observed in the group under severe water stress. Plants treated with the Chlorella-based biostimulant showed higher values than the control, indicating a positive effect. The results of the phytohormone analysis showed that the microalga Chlorella fusca contained higher concentrations of several phytohormones involved in growth and stress response. Cytokinins (trans-zeatin and zeatin riboside), melatonin, salicylic acid, and jasmonic acid were detected. These compounds may have contributed to the improved fresh weight performance of the plants under severe water stress conditions.These results demonstrate that microalgae-based biostimulants can be useful for enhancing crop growth under conditions of limited water availability.

Aquest projecte està relacionat amb l'adaptació al Canvi Climatic? No

Aquest projecte està relacionat amb la digitalització del seu àmbit de treball? No

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