Budding and Appendaged (prosthecate) bacteria Contain various kinds of cytoplasmic extrusions Stalk Hyphae Appendages These kinds of extrusions which are smaller in diameter than mature cell, contain cytoplasma, and are bounded by the cell wall, are called prostheca(singular prostheca) Unequal cell growth, such as polar growth Majority is purple bacteria except Planctomyces and perella which are unusual as their cell walls consist mainly of protein Most are aquatic, many live attach to surfaces using prostheca A stalk is usually a prostheca except in Planctomyces
Budding and Appendaged (Prosthecate) Bacteria Contain various kinds of cytoplasmic extrusions: Stalk Hyphae Appendages These kinds of extrusions, which are smaller in diameter than mature cell, contain cytoplasma, and are bounded by the cell wall, are called prosthecae (singular prostheca) Unequal cell growth, such as polar growth Majority is purple bacteria except Planctomyces and Pirella which are unusual as their cell walls consist mainly of protein Most are aquatic, many live attach to surfaces using prosthecae A stalk is usually a prostheca except in Planctomyces
Bacteroides. Spirochetes Flavobacteria Deinococci Green sulfur and relatives bacteria Planctomyces and Green nonsulfur bacteria Chlamydia Gram-positive bacteria Thermotoga Cyanooactena aerobacter
Budding and Appendaged (prosthecate) bacteria oducts of cell division are equal: Binary fission: conventional bacteria oducts of cell division are unequal: Simple budding- Pirela. Blastobacter Budding from hyphae: Hyphomicrobium. Rhodomicrobium. Pedomicrobium Contrast between cell division 3 in conventional bacteria and in budding and stalked bacteria Cell division of stalked organism: Caulobacter
Budding and Appendaged (Prosthecate) Bacteria Contrast between cell division in conventional bacteria and in budding and stalked bacteria
Budding and appendaged(Prosthecate) Bacteria a Caulobacter rosette. The five cells are attached by their stalks(prostheca) Stalk
Budding and Appendaged (Prosthecate) Bacteria A Caulobacter rosette. The five cells are attached by their stalks (prosthecae)
Budding and appendaged (prosthecate) bacteria DNA Stages in the Hyphomicrobium cell cycle Mother ce Hypha forms Hypha lengthens DNA replication occurs circular chromosome enters bud Swarmer Bud (lengthens) Formation of cross-septum ce目l separation Hypha DNA in mother lengthens urther cell replicates again
Budding and Appendaged (Prosthecate) Bacteria Stages in the Hyphomicrobium cell cycle