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Mot de passe perdu? S'inscrire

21-08-2008 14:24

NC NC

Des corps fructifères copuliformes de commencemen

20-08-2008 21:07

Jean Pierre Dechaume Jean Pierre Dechaume

Bonsoir à vous, pas capable de trouver le genre,

15-08-2008 01:46

Miguel Ãngel Ribes Miguel Ángel Ribes

The last one today On the bark of a live "Viña

15-08-2008 01:21

Miguel Ãngel Ribes Miguel Ángel Ribes

I am going to try it again with an easier fungi, I

14-08-2008 23:39

Miguel Ãngel Ribes Miguel Ángel Ribes

Sobre madera en bosque de laurisilva (Tenerife, Is

08-08-2008 04:07

NC NC

Bonjour à tous, Quelqu'un peut-il me fournir une

05-08-2008 16:06

Alain GARDIENNET Alain GARDIENNET

Bonjour, Une récolte qui devrait intéresser Chr

05-08-2008 07:54

VASILEIOS KAOUNAS

Found by giorgos konstantinidis 1-8-2008, [Ziakas]

31-07-2008 02:30

Raúl Tena Lahoz Raúl Tena Lahoz

Melastiza boudieri? Spores: 15-18 x 9´5-10´5 I

28-07-2008 22:30

Enrique Rubio Enrique Rubio

Quelqu'un pourrait-il obtenir la documentation sui

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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