Adriano Reis Lucheta I; Marcio Rodrigues Lambais II

ISOLATION, SCREENING, AND CHARACTERIZATION OF CHITINASE PRODUCING BACTERIA FROM MARINE WASTES

Bioremediation of Petroleum oil Contaminated Soil …

Prerequisites: Restricted to Biology majors; with a grade of C- or better, (may be taken concurrently).
Laboratory techniques in the isolation, cultivation, and identification of microbes, especially bacteria; microbial properties including nutrition, gene transfer, enzyme induction, and viral replication. Composition, 1 unit; laboratory, 2 units. Extra fee required. (Plus-minus ABC/NC)

Characterization of the gut bacterial community in Manduca sexta and effect of antibiotics on bacterial diversity and nematode reproduction.

Mycorrhizal Fungi as a Biocontrol Agent - Science Alert

(Onions) and(Garlic): The ethanolic extracts from the cloves of show against MDR pathogens responsible for (). The ethanolic and aqueous extracts from the bulbs of have been found to have antibacterial action against the common causes of s, and especially those isolated from high vaginal swabs ().

“Characterization of the bactericidal activity of the natural diterpene kaurenoic acid.”  2002 68(5): 452–54.

Improper diagnosis of any microbial infection leads to untargeted therapy and injudicious use of allopathic drugs, giving way to the emergence of antimicrobial drug resistant pathogens (; ). Thus, due to exhaustive and indiscriminate use of antibacterials the phenomena of antibacterial therapy failure or ineffectiveness has evolved many drug resistant pathogens. Amongst these, multidrug resistant pathogenic microorganisms are the concealed enemies to the mankind and animals (). The development of antimicrobial resistance among the bacteria is an important issue for treatment of infectious diseases in man as well as animals. Although, there is progress in research and development of new and improved salts of antimicrobial agents but the bacteria are developing resistances to these antibiotics at a higher pace from it. Antibiotic sensitivity testing of the currently available bacterial agents, isolated from different cases of infections, revealed resistant strains even against multiple drugs (; ; ; ).

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The Institute of Bioinformatics (IOB) established by Dr

L. (Mulberry tree): belongs to the family Moraceae which is one of the oldest fruits in the world and widely used for various diseases. It has been used as an anti-inflammatory agent ulcers and eruptions as well as digestion promoter. The m of leaves have against MRSA (MIC 2.5-20 mg mL-1) isolated from clinical samples. The m also shows synergistic activity in combination with oxacillin or ampicillin and induces a more rapid decrease in the concentration of bacteria. The antibacterial effect has been suggested to act in a dose dependent manner against common bacterial pathogens (; ).

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: The of has active principals against both Gram positive and Gram negative bacteria such as ,,, with MIC of 50 μg mL-1 (). By realizing these benefits, has long been used in folklore medicine for the treatment of pyrexia, inflammatory conditions, hyperglycemia, asthma, tuberculosis, dysentery, intestinal disturbances, cancers and sleep disturbances. The tetrahydroberberine alkaloid called as 8-(4’-methoxybenzyl)-xylopinine has been isolated from the of its tubers and which showed against ,, and with Inhibition Zone Diameter (IZD) of 8-19 mm at MIC of 25-100 ìg/ml ().

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(Common fennel) and (Marine fennel): Fennel is commonly used as a culinary spice for preservation of food spoilage. The main antioxidant compounds isolated from fennel are the essential oils which have significant . Trans-anethole and estragole are the major components which show the against the food-borne pathogens. These compounds inhibit the growth of the Gram positive bacteria such as and . They also exhibit antibacterial activity against Gram negative bacteria such as , and The essential oils are more active againest as compared to other bacteria. The possible mechanism of action of the essential oil is by causing damage to cell membranes, resulting in leakage of electrolytes and losses of intracellular contents (; ).

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Our understanding of bacterial biogeography and community assembly is correspondingly vague, anecdotal and controversial (). Traditional approaches to the study of microbial diversity have relied on laboratory cultivation of isolates from natural environments and identification by classical techniques, including analysis of morphology, physiological characteristics and bio. These approaches provide information on fine scale but suffer from bias by media and cultivation conditions (). Estimated genotypic diversity in bacterial communities based on DNA renaturation experiments suggests that there are 4x103 to 7x103 different genome equivalents per g of soil (), which if extrapolated to species diversity, suggests that there are perhaps 103 or even more species per g of soil.