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18-07-2025 23:03

Josep Torres Josep Torres

Hello.Fruitings between 51 and 130 microns in tota

17-07-2025 11:55

Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

Hi,do you think this collection could be R. ulmari

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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