19-04-2024 14:28
B ShelbourneCudoniella tenuispora: Distinctive macro and habit
13-04-2024 11:44
Riet van OostenHello, Found by Laurens van der Linde, April 2024
16-04-2024 17:43
Giovanni ANTOLABonjour,Trouvé sous paille humide, autour d'un je
17-04-2024 10:44
Bernard CLESSEJuste à côté du cône avec "Hyphodiscus ayelii"
16-04-2024 22:53
Bernard CLESSEBonsoir à toutes et tous,Pourriez-vous m'aider à
Mould which easily break when mounted in water or Stains
Stephen Mifsud,
02-12-2017 08:36
Rarely I see spores in short chains but often they are very hygrophobic and entrapped in tiny bubbles hindering the view of the conidiaphore+apparatus. Is there a specific mould with this character - breaking out easily? I strongly doubt it is a Penicillium as I managed to see a fruiting part with budding spore.
Angel Pintos,
02-12-2017 09:32
Re : Mould which easily break when mounted in water or Stains
Looks like Cladosporium sp.
regards
Angel
regards
Angel
Joey JTan,
02-12-2017 17:03
Re : Mould which easily break when mounted in water or Stains
Yes this is a Cladosporium sp. The conidial chains easily fragment and can be seen best by making a tape mount. Gently press a small piece of transparent tape against the colony and mount it in water (place it on a drop of water, don't just stick it to the slide itself). You should see the chains still connected. The larger, 2-celled, shield-like ramoconidia are indicative of Cladosporium and give rise to branching conidia chains.
Stephen Mifsud,
07-12-2017 23:29
Re : Mould which easily break when mounted in water or Stains
Hi thank you for your replies. It took time to come back but I did not forget you. The tape method did a lovely job. I cut a small squarish piece of tape using tweezers and clean scissors, laid the sticky surface on the outer part of the colony, gave a very gentle press (like a touch rather than a press), placed the sticky surface of a drop of water on a mounting slide and mounted under a microscope. It was interesting to observe that this species had clamp junctions.
Now, I could see the conidiogenesis structure very well and I drew a quick illustration :-)
I don't think I dare to follow the Cladosporium key of a meticulous monograph to reach species level!
Now, I could see the conidiogenesis structure very well and I drew a quick illustration :-)
I don't think I dare to follow the Cladosporium key of a meticulous monograph to reach species level!