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06-06-2021 11:51

Viktorie Halasu Viktorie Halasu

Hello, I couldn't find a name for this Ijuhya in

05-06-2021 19:16

Andreas Gminder Andreas Gminder

Dear collegues,today I found a rich collection of

03-06-2021 15:17

Pierre-Yves Julien

Bonjour,Je nécessite votre aide pour aller plus l

18-05-2021 11:38

Castillo Joseba Castillo Joseba

recolectada en Galicia en caña de herbaceaNo se s

03-06-2021 19:57

Enrique Rubio Enrique Rubio

Do you have any suggestions on these scattered syn

26-05-2021 18:15

Pierre-Yves Julien

Bonjour,Je nécessite votre aide pour cet asco que

02-06-2021 05:15

Zuidland Peter

HiThis the first year with a microscope to look at

14-04-2021 07:54

Josep Torres Josep Torres

Hola.Unas diminutas fructificaciones globosas y de

01-06-2021 21:28

Lothar Krieglsteiner Lothar Krieglsteiner

.. in the National Park Eifel, Germany. The amber-

01-06-2021 13:03

Rayan Majoor

Dear members of AscoFrance,last year, I found a mu

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Sphaeropsis sapinea / Pinus nigra ?
Aouali Souhila, 08-06-2021 18:16
Hi,

I lately studied P. nigra pine needles suffering blight symptoms. Could this be Sphaeropsis sapinea? based on literature the conidia are not septate, however in some literature cases of one septate conidia are present too. Another possibility that I came throu is Phoma acicola? No measurings taken yet. 

Thank you.

Souhila
  • message #69065
  • message #69065
  • message #69065
  • message #69065
Chris Yeates, 08-06-2021 23:35
Chris Yeates
Re : Sphaeropsis sapinea / Pinus nigra ?
Hi

Usually 0-1 septate, but can be more in older conidia see image below (not a great photo, from some years ago, but shows the septa OK). I think you are correct if the measurements fit - a Phoma would have much smaller non-septate, colourless conidia.

Regards, Chris
  • message #69072
Aouali Souhila, 10-06-2021 14:20
Re : Sphaeropsis sapinea / Pinus nigra ?
Hi,

Thank you Chris. I'll do measurements and compare.

Best regards, Souhila.