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Mot de passe perdu? S'inscrire

14-12-2017 14:19

Castillo Joseba Castillo Joseba

En Phytolaca americana, me mandan el material sec

14-12-2017 11:51

Per Marstad Per Marstad

3-8 mm in diameter, black, sp. 14-15 x 7-8 my, asc

14-12-2017 11:51

Per Marstad Per Marstad

3-8 mm in diameter, black, sp. 14-15 x 7-8 my, asc

13-12-2017 20:24

BERNARD CLESSE BERNARD CLESSE

J'ai trouvé hier, dans un xérobrometum (pelouse

14-12-2017 00:05

Valencia Lopez Francisco Javier

Hola a todos/asEstas Plicarias están recolectadas

13-12-2017 22:32

Pérez del Amo Carlos Manuel Pérez del Amo Carlos Manuel

Hola amigos, Pongo datos de una Otidea que encont

07-12-2017 22:53

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Subo unas fotos de un asco que hemo

12-12-2017 06:24

Ethan Crenson

Hello all,Yesterday in Queens, New York City I fou

12-12-2017 17:03

Ethan Crenson

From New York City.  The perithecia are immersed

13-12-2017 10:41

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,J'ai trouvé hier en pel

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Densely Grouped Conidiophores on Phragmites
Peter Thompson, 21-11-2017 11:59
Hello Everyone,

I have found a hyphomycete which grows densely clustered along the small ridges of a dead leaf of Phragmites australis.

The conidiophores are mid-brownish, knobbly, with scars along them and measuring between 68 - 130 x 5 um. They are smooth, regularly septate and thick walled.

The conidia are pale 1- 3-septate, with the largest being 16 - 18.5 x 7.25 - 8 um. Their bases are flattened, where previously attached to the conidiophores.

The closest species which I can find in the literature is Dendryphiella infuscans, but this species does not seem to grow in dense tufts, like mine.

I have attached a photo of the fruit bodies and also a microphoto, showing more detail of their structure. 

I wonder if anyone has any ideas as to what they might be?

Thank You,
With Best Wishes,
Peter.
  • message #51255
  • message #51255
Chris Yeates, 21-11-2017 17:15
Chris Yeates
Re : Densely Grouped Conidiophores on Phragmites
It looks very like a species of Cladosporium, a very common and rather complex genus. See:
https://www.researchgate.net/publication/284233129_Common_but_different_The_expanding_realm_of_Cladosporium
Peter Thompson, 21-11-2017 17:46
Re : Densely Grouped Conidiophores on Phragmites
Hello Chris,

Thanks. I will have a look through this paper.

I did consider the genus Cladosporium, but was not sure that they would grow so densely grouped as my sample.

With Best Wishes,
Peter.
 

Herrera Emerson, 21-11-2017 18:01
Herrera Emerson
Re : Densely Grouped Conidiophores on Phragmites
Buen día, por el momento pense en Cladosporium pero esta produce esporas de una celula. Son irregulares pero no es Cladosporium.
Chris Yeates, 21-11-2017 18:16
Chris Yeates
Re : Densely Grouped Conidiophores on Phragmites
Does "esta produce esporas de una celula" mean "produces spores with a single cell"? Because Cladosporium conidia can have several septa - compare with:
http://www.discoverlife.org/20/q?search=Cladosporium+macrocarpum
Chris