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Archivio digitale delle tesi discusse presso l’Università di Pisa

Tesi etd-05022023-135640


Tipo di tesi
Tesi di laurea magistrale
Autore
TORRESI, DARIO
URN
etd-05022023-135640
Titolo
Effects of pollutant mix on the physiological response of olive trees (Olea europaea L.cv. 'Cipressino')
Dipartimento
BIOLOGIA
Corso di studi
BIOTECNOLOGIE MOLECOLARI
Relatori
relatore Prof. Sebastiani, Luca
Parole chiave
  • ammonium glufosinate
  • cadmium
  • caffeine
  • glyphosate
  • HPLC-MS/MS
  • ionomic
  • metabolomics
  • nickel
  • sodium chloride
Data inizio appello
23/05/2023
Consultabilità
Non consultabile
Data di rilascio
23/05/2026
Riassunto
This study aims to investigate the uptake, translocation, and physiological responses in Olea europaea L. cv. ‘Cipressino’ plants to water contaminants. Pollutants and their concentrations utilised for this study are the following: 0.5 mg L-1 Cd, 0.5 mg L-1 NiCl2, 60 mM NaCl, 1 mg L-1 Caffeine-13C, 5 μg L-1 glyphosate and, 10 μg L-1 ammonium glufosinate. Plants were distributed according to a completely randomized experimental design and weekly were irrigated with treatment solution for 102 days. During experiment shoot elongation, SPAD measurements, gas exchanges, maturity index analysis were performed. Lastly, plant organs were sampled, and destructive analysis were carried out.
Results showed how treatment did not affect shoot elongation, SPAD and maturity index in olive plants whereas physiological parameters Pn and gs were negatively affected. Concerning inorganic pollutant analysis Na entered and accumulated into whole organs of plants, Ni did not enter plant, Cd entered and accumulated in organs plants except for old leaves and fruits. Mineral analysis showed how K decreased into roots plants and increased into fruit plants, Zn was higher into old stem, new stem and new leaves plants, Mg increased to new stem and old leaves level, Ca increased in new stem plants, and Cu increased into old leaves plants. No variation was detected for Mn. Concerning organic pollutants, it is not detected any of supplied pollutants except for MPP metabolite at root level. These results showed that ‘Cipressino’ accumulate salt into fruits indicating how olive production should not be compromised. Nevertheless further studies must be assessed to investigate oil quality.

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