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Batteri marini luminescenti, lampadine viventi nello Stretto di Messina

La luce, gialla o blu, viene prodotta dai batteri marini luminescenti (blm) attraverso un processo enzimatico, catalizzato dall’enzima luciferasi, geneticamente regolato. L’emissione di luce viene innescata attraverso un meccanismo di comunicazione, quorum sensing, che i batteri adoperano mediante segnali chimici, per rilevare la loro densità ed iniziare ad emettere luce. La luce emessa può essere facilmente misurabile mediante un luminometro.
La coltivazione dei blm è di costo contenuto e non richiede apparecchiature particolari. Questi aspetti li rendono “utili” in vari campi delle Biotecnologie. Ad esempio vengono utilizzati per effettuare test di tossicità nell’acqua: se non emettono luce, l’acqua è inquinata.

Data

Set 29 2023
Expired!

Ora

5:00 pm - 11:55 pm

Etichette

Citizen science,
Informational pills

Luogo

Università degli Studi di Messina
Categoria

Organizzatore

Università degli Studi di Messina
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Calendar

Maggio 2025
Nessun evento trovato!