Role of carbon and nitrogen sources in bacterial growth and sporulation.
نویسنده
چکیده
A simple growth medium is reported, in which Bacillus megaterium forms heat-stable spores, heat-labile spores, or only vegetative cells by changing the carbon and nitrogen source. Studies carried out in such media could be very useful in elucidating biochemical events which lead to bacterial sporulation.
منابع مشابه
Nutritional Studies of Colletotrichum gloeosporioides (Penz.) Penz. and Sacc. The Incitant of Mango Anthracnose
Anthracnose caused by Colletotrichum gloeosporioides Penz.) Penz. and Sacc. is one of the most important diseases of mango. The nutritional studies were taken up to know the best source of carbon and nitrogen required for the growth and sporulation of the fungus. The study indicated that out of six different carbon sources tried, mannitol was found to be the best source of carbon for the growth...
متن کاملStarvation stress modulates the expression of the Aspergillus nidulans brlA regulatory gene.
Expression of the Aspergillus nidulans brlA gene plays a fundamental role in the switch from vegetative growth to asexual reproduction. Using a media-shifting protocol to induce submerged sporulation and brlA-lacZ as an expression marker, it was shown that carbon and nitrogen starvation stress induced brlA transcription to different degrees. Glucose starvation induced briA rapidly to high level...
متن کاملOne-Factor-at-a-Time Optimization of Polyhydroxybutyrate Production and Growth of Alcaligenes eutrophus by Altering Culture Parameters and Incubation Time
Polyhydroxyalkanoates (PHAs) are bioplastics derived from renewable resources such as vegetable oils, corn starch, or microbes. The polyhydroxybutyrate (PHB) is a short-chain-length PHA, and the most important bioplastic produced by certain microorganisms in the presence of excess carbon sources. In this study batch cultivation of Alcaligenes eutrophus with the aim of increasing PHB production ...
متن کاملNutritional Requirements of Bacillus thuringiensis During Different Phases of Growth, Sporulation and Germination Evaluated by Plackett-Burman Method
The effects of different sources of carbon, nitrogen and some of trace elements on cultivation of Bacillus thuringiensis H14 were studied. Glucose, glycerol, sodium acetate, (NH4)2SO4, corn steep liquor, yeast extract, hydrolyzed casein, Ca2+, Mg2+ and Mn2+ were the main parameters evaluated by Plackett-Burman statistical method. All el...
متن کاملOptimization of Carbon and Nitrogen Sources for Extracellular Polymeric Substances Production by Chryseobacterium indologenes MUT.2
Background: Bacterial Extracellular Polymeric Substances (EPS) are environmental friendly and versatile polymeric materials that are used in a wide range of industries such as: food, textile, cosmetics, and pharmaceuticals. To make the production process of the EPS cost-effective, improvements in the production yield is required which could be implemented through application of processes such a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Applied microbiology
دوره 22 1 شماره
صفحات -
تاریخ انتشار 1971