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01-01-2026 18:35

Spooren Marco Spooren Marco

Original loamy soil aside a artificial lake.The co

31-12-2025 19:27

Spooren Marco Spooren Marco

Collected from loamy soil, at waterside (completel

29-12-2025 17:51

Blasco Rafael Blasco Rafael

Hola, me pueden ayudar con esta muestra.Recogida s

30-12-2025 16:44

Pascal Ducos

Bonjour,Une anamorphe rose stipitée, très nombre

29-12-2025 23:20

éric ROMERO éric ROMERO

Bonjour, Une récolte du mois d'août 2025 en tou

30-12-2025 17:14

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous aider Albe

30-12-2025 15:31

Johan Boonefaes Johan Boonefaes

I found this unknown star form by the microscopy o

29-12-2025 10:15

Hulda Caroline Holte

Hello, I found and collected this propoloid ascom

30-12-2025 09:04

Josep Torres Josep Torres

Hello.A Pyrenomycete sprouting sparsely but very d

29-12-2025 17:44

Isabelle Charissou

Bonjour,J'aimerais savoir si d'autres personnes au

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Fusarium on Hibiscus
Martin Bemmann, 06-05-2012 23:34
Martin BemmannIn my garden two shrubs of Hibiscus (15 to 20 years old) did not survive the winter season. Today I observed lots of orange dots down to the roots that turned out to be conidiocarps of a Fusarium species. The last service I try to give to these beloved flowers  is to give their hangman a name. ;-)
I attache some pictures, but the host will be certainly more helpful for determination, for those who know....

Typical conidia show 3 septa but 0-4 septa were observed as well.

Best regards

Martin
  • message #18496
  • message #18496
  • message #18496
  • message #18496
Chris Yeates, 07-05-2012 01:54
Chris Yeates
Re : Fusarium on Hibiscus
hello Martin

others with greater knowledge may contradict me, but my experience is that Fusarium is a 'culture or sequence' genus - easy to recognise at the generic level but impossible to name on macroscopic and microscopic information of field characters alone, unfortunately

Chris
Hans-Otto Baral, 07-05-2012 07:43
Hans-Otto Baral
Re : Fusarium on Hibiscus
Hi Martin & Chris

I made the same experience :-(
http://www.ascofrance.fr/search_forum/11579?

But you have the opportunity to await the teleomorph if any exists. Or did you remove the shrubs?

We have here also Hibiscus shrubs in gardens which look rather ill. I will have a look.

Are these Fusarium species really polyphagous? Or does the host help in the identification?

Zotto


Christian Lechat, 07-05-2012 10:09
Christian Lechat
Re : Fusarium on Hibiscus
Hi Martin,
I would like to study and sequence your Fusarium, could you please to send me a part of your collection?

a lot of thanks
Christian
Martin Bemmann, 07-05-2012 10:23
Martin Bemmann
Re : Fusarium on Hibiscus
Hi Christian,

I have tons of it...

I will send you some by tomorrow.

Best regards,

Martin
Christian Lechat, 19-11-2012 21:33
Christian Lechat
Re : Fusarium on Hibiscus
Dear all,
here are molecular data of Fusarium on Hibiscus, no doubt, that is Gibberella pulicaris.

All my best

Chirstian

  • message #20460
Martin Bemmann, 20-11-2012 23:41
Martin Bemmann
Re : Fusarium on Hibiscus
Dear Christian,

thank you very much for your efforts!
I have but a problem with your result. When I run a BLAST at GenBank with your sequence CLL12012_ITS4 the best match showing up is  F. merismoides (not even fitting macroscopically to my find). 
Is this due to the fact you choose ITS4 (no entry for Fusarium at GenBank features it) I cant't comprehend your result? I have to learn very much in this field!

curiously,

Martin

?

Martin Bemmann, 21-11-2012 19:56
Martin Bemmann
Re : Fusarium on Hibiscus
Dear Christian,

attached an alternative tree. I added the well matching F. merismoides and the common F. oxysporum. The outgroup Microdochium nivale I choose following Watanabe et al. 2011.

Best regards

Martin
  • message #20487
Christian Lechat, 22-11-2012 14:36
Christian Lechat
Re : Fusarium on Hibiscus
Sorry dear Martin,
I made a mistake about sequence, the one I have posted is not from your specimen but it is a Dialonectriaa.
I attach the correct sequence.

excuse me,

Regards,
Christian
Martin Bemmann, 22-11-2012 21:19
Martin Bemmann
Re : Fusarium on Hibiscus
Thank you Christian,

that explains a lot! So the name of my Hibiscus killer will be Fusarium sambucinum... ;-)
No, I learned meanwhile that last winter many shrubs died due to frost and those Fusarium fungi just entered the dead or dying plants.

Regards

Martin