Sommario
Cosa sono le endospore e dove si formano?
Un’endospora è una qualsiasi spora prodotta all’interno di uno sporangio o di uno sporocisti. In batteriologia le endospore sono particolari strutture molto resistenti (anche a temperature molto alte) sviluppate dai batteri in condizioni ambientali sfavorevoli.
Cosa sono le SASP?
Le SASP (small acid-soluble proteins) sono proteine presenti nel core delle endospore prodotte dai batteri; vengono prodotte durante la sporulazione e svolgono due funzioni: sono fonti di carbonio e di energia e permettono quindi lo sviluppo della nuova cellula vegetativa a partire dall’endospora.
How to identify the endospore structure of Bacillus megaterium?
The endospore structure of the Bacillus megaterium was examined by employing the Schaeffer-Fulton Spore staining method. The method applied a differential staining method by which the spores of the bacterial culture was differentiated from other structure.
Is Bacillus megaterium Gram positive or negative?
Bacillus Megaterium is a rod-like, Gram-positive, mainly aerobic spore forming bacterium found in widely diverse habitats. With a cell length of up to 4 µm and a diameter of 1.5 µm, B. megaterium is amongst the biggest known bacteria.
What are the physiological abilities of Bacillus megaterium?
Like other Bacillusstrains, B. megateriumshows a wide range of physiological abilities, such as endospore formation and production of essential antibiotics, which allow the organism to grow and survive in widely diverse habitats (e.g., soil, seawater, sediment, petrochemical wastes) [1,2].
Is Bacillus megaterium a saprophyte?
Bacillus megaterium is a gram positive, endospore forming, rod shaped bacteria. It is considered aerobic. It is found in soil and considered a saprophyte. Bacillus megaterium is latin for the big beast because it is an extremely large bacteria, it is about 100 times as large as E. coli.
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