Accès membres

Mot de passe perdu? S'inscrire

22-03-2021 14:23

Mirek Gryc

Hi.Many times I found species from this kind but h

20-03-2021 10:53

Juuso Äikäs

This Ciliolarina sp. was growing on the inner surf

22-03-2021 12:49

Mirek Gryc

Hello everyoneRecently because of the lack of othe

22-03-2021 00:27

Ethan Crenson

Hello all, A couple of weeks ago in Central Park

07-03-2021 20:02

Bometon Javier Bometon Javier

Hola a todos, he encontrado este ascomiceto entre

21-03-2021 09:56

Viktorie Halasu Viktorie Halasu

Hello,would anyone have this paper please? Ma et a

11-01-2021 20:20

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte cortiquée d'Acer opal

20-03-2021 14:50

DirkW DirkW

Salut a tous,yesterday i found this little discomy

19-03-2021 19:04

Juuso Äikäs

This was growing on resin of a living Picea abies,

11-03-2012 10:48

Alessio Pierotti Alessio Pierotti

Qualcuno può aiutarmi a trovare i seguenti artico

« < 326 327 328 329 330 > »
Gibberella sp? on Acer.
Mirek Gryc, 22-03-2021 14:23

Hi.
Many times I found species from this kind but have usually missed conidiophores. This time, however, both forms occur at the same time almost in every sample collected so I think conidiophores belongs to this species.
I looked through all the available articles on Gibberella but nothing could match. Finally, I found a drawing of Gibberella intricans, Wollenweber, H.W. Fusaria Autographic Delineata, EDN 3: I, 660-1100: 810 (1930).
In principle, all features match my collection.
Initially measured the spores overripe, I did not fit their width. I found a less mature fruiter whose spores with sizes correspond to those from the engravings.
Relevant note is that the spores are in most 3-septata (rarely 5-septata).

Spores;
(27.7) 27.8 - 31.2 (31.5) × (5.3) 5.9 - 7.3 (7.5) µm
Q = (3.9) 3.94 - 5.27 (5.3) ;
Me = 29.1 × 6.6 µm ; Qe = 4.4
Conidia
31.3 - 37.2 × 4.6 - 4.89 (4.9) µm
Q = (6.8) 6.84 - 7.6 ;
Me = 33.7 × 4.7 µm ; Qe = 7.2


However, I am wondering a very poor reaction to KOH?
What is your opinion on it?
greetings
Mirek

  • message #68027
  • message #68027
  • message #68027
  • message #68027
  • message #68027
  • message #68027
  • message #68027
  • message #68027
  • message #68027
  • message #68027
Bernard Declercq, 22-03-2021 17:49
Bernard Declercq
Re : Gibberella sp? on Acer.
Hi Mirec,

This is clearly a Fusarium ss. str.(syn.: Gibberella).
Compare with lignicolous species Fusarium lateritium Nees, ascospores as well as 3(5)-septate conidia seem to match.

Bernard
Mirek Gryc, 22-03-2021 19:43
Re : Gibberella sp? on Acer.
Hi Bernard.
Again, I had to look a bit of literature about it and compare my.
It seems to me that you are right. Features very good fit to the genre that you offered.
Thank you very much
Mirek