PPT-Actinomycetes Gram positive filamentous bacteria

Droruba Khalid abbas ACTINOMYCETES In this lecture we shall discuss 3 genera of actinomycetes Actinomyces Nocardia and Streptomyces These organisms have been shown to be . Gram Stain Reaction. The Gram stain reaction, named after the Danish bacteriologist Hans Christian Gram, was originally devised in 1882.. Gram staining is based on the ability of the bacterial cell wall to retain the crystal violet dye. . Physical differences & clinical . signifigance. . . Figure 4.8b. Gram- positive bacteria. Gram-negative bacteria. Figure 4.8a. Gram-Positive cell walls. Teichoic acids:. Lipoteichoic acid links to plasma membrane. Internal Structures:. cytoplasm. nucleoid. ribosomes. Boundaries:. cell membrane. cell wall. capsule. Appendages:. flagellum. pili. Shapes of Bacteria. Bacteria Identification Criteria. Shapes. Davies-. Bolorunduro. O.F. . 1,2. ,. Adeleye I.A.. 1 . and Wang P.G.. 2 . 1. Department of Microbiology, University of Lagos, . Akoka. , Lagos, Nigeria. 2. Department of Chemistry, Georgia State University, Atlanta, Georgia, U.S.A.. Gram-Positive Bacilli Bacteria Dr. Alan N. Talabani Lecturer at College of Medicine/University of Sulaimani Gram-Positive Bacteria I- Gram Positive bacteria A- Gram positive cocci B- Gram positive rods 1. BIOPROSPECTING FOR ANTIMICROBIAL AND ANTICANCER COMPOUNDS FROM ACTINOMYCETES FROM LAGOS LAGOON SEDIMENTS. . Professor . I.A. . Adeleye. Dr. M.O. . Akinleye. 2. BACKGROUND . OF STUDY. . About 23,000 bioactive secondary metabolites produced by microorganism have been reported and over 10,000 of these compounds are produced by . and . Function. Bacterial . Form . and Function. A. . Structures common to . all. bacterial cells. 1. . Cell membrane. 2. . Cytoplasm. 3. . Ribosomes. 4. . One (or a few) . chromosomes. Bacterial Form . Ezza. Ashraf. 1. , . Rabia Tanvir. 1. , Aftab Ahmad Anjum. 1. and Hassan Mushtaq. 2. 1. Institute of Microbiology (IOM), University of Veterinary and Animal Sciences (UVAS), Lahore 54000, Punjab, Pakistan. Intended Use:ecommended for detection of saccharolytic marine bacteria.Composition** Ingredients Gms / Litre powder 1.000 Starch 10.000 Sea water 37.000 Agar 15.000 Final pH ( at 25°C) 7.2±0.2**For Dairy Foods Science Notes (D raft 06 - 10) The Microscopic Examination of Milk Characterization of Milk Bacteria and Cells The microscope has been used to observe and count bacteria and somatic cells dreamstime.com. 3. ASFV Cameroon: what's known and key challenges. What's known . Molecular characterisation . 1. Genotype I. 2.Genotype . Ia. and . Ib. 3. . Sero. -group I. 4. Four variants . with 6,19,20 . Tulsi. and Neem plant extracts with their related endophytic actinomycetes against ESBL producers. Hafsa Shahzadi. 1. , . Rabia Tanvir. 1. , Ali Ahmad Sheikh. 1. and Wasim Shehzad. 2. 1. Institute of Microbiology (IOM), University of Veterinary and Animal Sciences (UVAS), Lahore 54000, Punjab, Pakistan. Mycetoma. Definition . Chronic granulomatous progressive inflammatory disease . caused by various species . of . fungi or . bacteria (. actinomycetes. ). , . and characterized by the formation of . aggregates . Size of a Bacterial Cell: . There are great variations in size of bacteria. . They . measure from 0.75 µ to 1.5 µ but on an average each cell of bacterium measures about 1.25 µ to 2 µ . ( . in . diameter). .