i have isolated fungus from C.procera and i want to know the colony characteristics.
Hi Vipin,
The first step, You must prepare the slides to see the spoes, asexual and sexual structures
Dear Nagda,
I agree with Laith Sir. You should go for microscopic observation of the reproductive structures to identify them with a standard manual.
sir i just want to know their colony characteristics like form, elevation and margin or weather these are sporulating or not
Different types of fungi will produce different-looking colonies, some colonies may be coloured, some colonies are circular in shape, and others are irregular. A specific terminology is used to describe common colony types. These are:
Form - What is the basic shape of the colony? For example, circular, filamentous, etc.
Size – The diameter of the colony. Tiny colonies are referred to as punctiform
Elevation - This describes the side view of a colony. Turn the Petri dish on end.
Margin/border – The edge of a colony. What is the magnified shape of the edge of the colony?
Surface - How does the surface of the colony appear? For example, smooth, glistening, rough, wrinkled, or dull.
Opacity - For example, transparent (clear), opaque, translucent (like looking through frosted glass), etc.
Colour - (pigmentation) - For example, white, buff, red, purple, etc.
Yeast colonies are very similar to bacterial colonies.
Moulds often have fuzzy edges. They usually turn into a different colour, from the centre outwards.
second is raised colony with constricting margins , sporulating with green conidia
Third colony is olive colored with radiating margins,conidia may or may not present. Seems Helminthosporium, Alternaria or Curvularia
The CBS-KNAW Fungal Biodiversity Centre provide an on-line tool that allows to identifiy fungal species by a dicotomic key. I found it very useful.
https://microbiologyonline.org/teachers/observing-microbes/observing-fungi-in-a-petri-dish
- Badges
- Science topic
- Similar topics
- Biological Science
- Biota
- Eukaryota
- Fungi