Looking for plant pathogenic fungi Septoria CytisiHi.

[william.quaedvlieg]

Hi.

My name is William Quaedvlieg and I have recently started working on my PhD research into Mycosphaerella/Septoria genera at the group of Pedro Crous at the CBS in Utrecht (the Netherlands).

For my Septoria research I have been trying to isolate the Septoria Sp. type strain (Septoria cytisi) here in Holland, but have been unsuccessful so far.

I have contacted several mycological collections around the world but have so far been unsuccesful in locating this elusive plant pathogen that is more common in eastern europe on leguminosa species (e.g. Laburnum anagyroides).

As there are no living strains in collection and I cant seem to locate this elusive pathogen myself, I am currently posting my request for S.cytisi on fora all over the world.

If anybody has any Idea about locating S.cytisi, please let me know.

Greetings.

William.

[Harry]

Hi William,

there has not been answered yet our Plant Pathogenic Fungi - Specialists I want to have your first posting is not answered.

I know Septoria cytisi not, he should cause the leaves of Ilex whitish spots with a brown border. Because Ilex is rare to find me I am not going in your search for that Pathogenic Fungi likely be able to help. I wish you every success in your quest.

Greeting
Harry


Hallo William,

da bisher noch keiner unserer Phytoparasiten - Spezialisten geantwortet hat möchte ich dein erstes Posting hier nicht unbeantwortet lassen.

Ich kenne Septoria cytisi nicht, er soll an den Blättern von Ilex weißliche Flecken mit brauner Umrandung verursachen. Da die Stechpalme bei mir nur selten zu finden ist werde ich dir bei deiner Suche nach diesem Phytoparasiten mit großer Wahrscheinlichkeit nicht weiterhelfen können. Ich wünsche dir bei deiner Suche weiterhin viel Erfolg.

Gruß
Harry

[william.quaedvlieg]

Hi Harry.

The species that I am looking for (S.cytisi) has only been discribed on Leguminosae/Fabaceae. If I could get it from "Stechpalmen/Ilex", that would be great, but it has never been discribed as being isolated from "Ilex" so I honestly don't think I will be succesful while Pursuing your lead.

But thank you for your imput anyway, I appreciate it.

Gr

William

[Dedimyk]

Hi William,

I also don´t know Septoria cytisi, but in Brandenburger see here:Brandenburger, Wolfgang: Parasitische Pilze an Gefäßpflanzen in Europa
Verlag: Gustav Fischer Verlag-Stuttgart-New York Erscheinungsdatum: 1985, 1248 Seiten
ISBN: 3-437-30433-X
there are two Septoria`s on Ilex-leafs-Septoria ilicifolia Cooke & Ellis and Septoria massalongiana Saccardo, but they are unknown to me.

I hope, that Professor Butin can help you, he is our specialist for phytoparasitic fungi.

Greetings

Detlef

Hallo William,

ich kenne Septoria cytisi auch nicht aber im Brandenburger, siehe hier:......, dort sind 2 Septoria´s auf Ilex-Blättern-Septoria ilicifolia Cooke & Ellis and Septoria massalongiana Saccardo, aber die sind mir unbekannt.
Ich hoffe, daß Professor Butin Dir helfen kann, er ist unser Spezialist für Phytoparasiten.

Grüße

Detlef

[Harry]

Hi William,

I have not looked at the article once and must say you're right. Ilex is not there as a host of S.cytisi but Laburnum - Goldregen. I had initially overlooked the sales of the two species separated.

Since Laburnum with us is quite often I will make myself specifically to the search, but it now makes more sense in incipient leaf fall?

Greeting
Harry


Hallo William,

ich habe mir den Artikel noch mal angeschaut und muss sagen du hast recht. Ilex ist dort nicht als Wirt von S.cytisi angegben sondern Laburnum – Goldregen. Ich hatte anfänglich den Absatz der beide Pflanzenarten trennt übersehen.

Da Laburnum bei uns recht häufig ist werde ich mich gezielt auf die Suche machen, aber macht es jetzt bei beginnendem Blattfall noch Sinn?

Gruß
Harry

[william.quaedvlieg]

Hi Harry.

I am currently still trying to find S.cytisi, I should have at least another 2-3 weeks left before leaf fall will force me to suspend my search until next year.

I have been sampeling Laburnums from al over the Netherlands, A collegue even brought me some samples from France but all has been unsuccesfull so far.

All Literature describes strains that where isolated in eastern europe, so I think I will either have to go there myself or find a contact that would be willing to send me some Laburnum leaves from over here.

I am looking for leaf spots on Laburnum (Goldregen) but any black leaf spots on Leguminosae/Fabaceae could be it. Septoria Pycnidia leave clear little black spots on leaves (See image as an example)

I will be leaving on a hiking holliday in yellowstone national park and the Utah canyonlands in the USA in a few days time, but will continue collecting sampels over there. Chanches of finding S.cytisi over there are slim but maybe I get lucky...

I am always open to ideas and suggestions.

Thank you for your help .

Greetings

William