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21-04-2015 18:18

Enrique Rubio Enrique Rubio

Hi to everybody This enigmatic pyreno on Fagus sy

20-04-2015 22:14

Bernard CLESSE Bernard CLESSE

Sur bourgeon de Rhododendron. Je suis pratiquement

19-04-2015 22:11

Bernard CLESSE Bernard CLESSE

Bonsoir à tous,Trouvé il y a quelques jours ce c

21-04-2015 07:07

luca antognoni luca

Hi, I'm looking for the following two publication

19-04-2015 14:10

Steve Clements

Hymenoscyphus? with mould on barkHi,This stalked d

19-04-2015 16:53

Alessandro Fellin

HiI am looking for the monograph of Donadini, spec

11-04-2015 15:25

Ralph Vandiest Ralph Vandiest

Hello, I found this geopora in S'albufera (ES). A

20-04-2015 18:58

Quijada Luis

Hi All,somebody has the following manuscript:Grove

20-04-2015 15:55

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, diamètre max 1mm.Asques

08-04-2015 14:00

Stoykov Dimitar Stoykov Dimitar

Here are the photos of Plagiostoma salicellum (F.

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Fusarium
Hans-Otto Baral, 23-05-2010 21:30
Hans-Otto BaralIn Arcon, le Gué de la Chaux, on attached Pinus sylv. twig in ca. 1 m above ground, grew this Fusarium. Sporodochia 0.6-1 mm diam.

Is it possible to recognize a teleomorph genus, or a species?

Zotto
  • message #11579
Hans-Otto Baral, 23-05-2010 21:32
Hans-Otto Baral
Re:Fusarium
Conida ca. *28-34 x 3.8-4.4 µm
  • message #11580
Christian Lechat, 24-05-2010 06:56
Christian Lechat
Re:Fusarium
Hi Zotto,
your Fusarium resembles to Fusarium circinatum = Gibberella circinata known on Pinus.
Unfortunately, it is impossible to determine this fungus without cultivating it, we have to know if it produces microconidia.
Regards,
Christian
Hans-Otto Baral, 30-06-2010 10:56
Hans-Otto Baral
Re:Fusarium
Hi Christian

you know I made a culture of thsi fungus, which grew quite rapidly. After adding acetic acid to it (you recommended tartaric acid) I obtained abundant conidia. There are mainly the large ones but some are small and only 1-septate. Dies that help?

Zotto
  • message #12152
Christian Lechat, 30-06-2010 15:47
Christian Lechat
Re:Fusarium
Hi Zotto,
on your photo I see conidia 0-4-septate and I would like to know if there are some conidia 5-septate in your culture. Could you please to send us an image of conidiogenesis from aerial mycelium and another from sporodochia.
Cheers,
Christian
Hans-Otto Baral, 30-06-2010 16:16
Hans-Otto Baral
Re:Fusarium
The conidia are mainly 3-4-septate, but I saw a few with 5 septa, see here.

The conidiophores in culture are difficult to photograph, the images are quite bad.
  • message #12163
Hans-Otto Baral, 30-06-2010 16:19
Hans-Otto Baral
Re:Fusarium
Here is a section of the sporodochia
  • message #12164
Hans-Otto Baral, 30-06-2010 16:19
Hans-Otto Baral
Re:Fusarium
Detail (see also near the beginning
  • message #12165
Christian Lechat, 30-06-2010 17:53
Christian Lechat
Re:Fusarium
size of conidia fits rather well with F. circinatum according to the scale bar on your third photo but it is very difficult to say which species of Fusarium it is without a complete description.
Maybe Gary will have an opinion?
Christian