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04-01-2023 19:57

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,J'ai trouvé cet asco im

04-01-2023 19:33

Enrique Rubio Enrique Rubio

These apothecioid ascomata are gregarious, superfi

04-01-2023 19:52

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et à tous et tous mes meilleurs

04-01-2023 20:37

Pérez del Amo Carlos Manuel Pérez del Amo Carlos Manuel

Hola amigos, Hace un par de días encontré en el

04-01-2023 17:47

Thorben Hülsewig

Hi there,last year (29.10.22) i found this asco on

11-01-2020 10:10

enrico ponzi enrico ponzi

I am looking for this publication: Monographia dis

30-12-2022 21:39

Elisabeth Stöckli

Bonsoir,Trouvé au sol sur feuille morte de Vinca

01-01-2023 11:56

Enrique Rubio Enrique Rubio

Has anybody a pdf copy of this article?DiCosmo, F.

17-12-2022 10:28

Arnold Büschlen

Nectria racovitzae Döbb. Ich beobachte seit Herb

30-12-2022 00:09

Przemyslaw Drzewiecki

Hallo21.08.2020; Das Thorn-Eberswalder Urstromtal

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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

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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