COLONY MORPHOLOGY DESCRIBING BACTERIAL COLONIES Roba Attar Dr
![COLONY MORPHOLOGY: DESCRIBING BACTERIAL COLONIES Roba Attar Dr. Nisreen Tashkandi ROBA ATTAR COLONY MORPHOLOGY: DESCRIBING BACTERIAL COLONIES Roba Attar Dr. Nisreen Tashkandi ROBA ATTAR](https://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-1.jpg)
COLONY MORPHOLOGY: DESCRIBING BACTERIAL COLONIES Roba Attar Dr. Nisreen Tashkandi ROBA ATTAR
![AIM of study When cells are grown on nutrient media, a bacterial colonies or AIM of study When cells are grown on nutrient media, a bacterial colonies or](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-2.jpg)
AIM of study When cells are grown on nutrient media, a bacterial colonies or groups will appeared. These colonies differ than each other in shape, edge, color, consistency…. . etc These characteristics are important in studying the bacterial cell to identify it and to isolate it in a pure picture. It will be useful to learn the terminology used for describing common colony types. ROBA ATTAR
![FORM • The form refers to the shape of the colony. • These FORM • The form refers to the shape of the colony. • These](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-3.jpg)
FORM • The form refers to the shape of the colony. • These forms represent the most common colony shapes you are likely to encounter. ROBA ATTAR IRREGULAR RHIZOID CIRCULAR FILAMENTOUS
![SIZE The size of the colony can be a useful characteristic for identification. The SIZE The size of the colony can be a useful characteristic for identification. The](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-4.jpg)
SIZE The size of the colony can be a useful characteristic for identification. The diameter of a representative colony may be measured. Tiny colonies are referred to as punctiform. ROBA ATTAR
![SURFACE Bacterial colonies are frequently shiny and smooth in appearance. Other surface descriptions might SURFACE Bacterial colonies are frequently shiny and smooth in appearance. Other surface descriptions might](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-5.jpg)
SURFACE Bacterial colonies are frequently shiny and smooth in appearance. Other surface descriptions might be: veined, rough, dull (not shiny when observed from an angle), wrinkled (or shriveled), glistening (shiny when observed from an angle). ROBA ATTAR
![TEXTURE Several terms that may be appropriate for describing the texture or consistency of TEXTURE Several terms that may be appropriate for describing the texture or consistency of](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-6.jpg)
TEXTURE Several terms that may be appropriate for describing the texture or consistency of bacterial growth are: watery, mucoid, brittle (dry and fragile), viscous (growth follow the loop), butyrous (buttery), tough ROBA ATTAR
![COLOR It is important to describe the color or pigment of the colony. Also COLOR It is important to describe the color or pigment of the colony. Also](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-7.jpg)
COLOR It is important to describe the color or pigment of the colony. Also include descriptive terms for any other relevant optical characteristics such as: opaque (not allowing light through), cloudy, translucent (allowing some light through), iridescent. ROBA ATTAR
![ELEVATION • This describes the “side view” of a colony. These are the most ELEVATION • This describes the “side view” of a colony. These are the most](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-8.jpg)
ELEVATION • This describes the “side view” of a colony. These are the most common. ROBA ATTAR
![MARGIN The margin or edge of a colony (or any growth) may be an MARGIN The margin or edge of a colony (or any growth) may be an](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-9.jpg)
MARGIN The margin or edge of a colony (or any growth) may be an important characterisic in identifying an organisms. ROBA ATTAR
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![Serratia marcescens growing on an agar surface. These colonies are circular, entire, convex, small, Serratia marcescens growing on an agar surface. These colonies are circular, entire, convex, small,](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-12.jpg)
Serratia marcescens growing on an agar surface. These colonies are circular, entire, convex, small, shiny, red and opaque. ROBA ATTAR
![Small Colonies Pigment Round, Entire Opaque Filamentous Irregular Opaque ROBA ATTAR Large Red Opaque Small Colonies Pigment Round, Entire Opaque Filamentous Irregular Opaque ROBA ATTAR Large Red Opaque](http://slidetodoc.com/presentation_image_h/971f0c198db2588f682ac2327fab7e40/image-13.jpg)
Small Colonies Pigment Round, Entire Opaque Filamentous Irregular Opaque ROBA ATTAR Large Red Opaque Round, Entire Buff Pigment Irregular, Undulate Opaque
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