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 PlanctomycesBudding 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