En tela de algodón - Forum ASCOFrance

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En tela de algodón

Castillo Joseba, 29-11-2019 12:11

Me mandan esta muestra de Galicia, recolectada en restos de una ropa de tela de algodón.

A vewr que os parece

Saludos

Joseba

Martin Bemmann, 29-11-2019 12:45

Re : En tela de algodón

Hi Joseba,

this seems to be Orbilia flavideroseola (current name?) already reported from weathered cotton. Zotto will surely comment on this.

Regards

Martin

Hans-Otto Baral, 29-11-2019 12:57

Re : En tela de algodón

O flavidorosella and O. carpoboloides are very similar, differences are in spore size.

O flavidorosella *(6.8–)7.3–10(–11.3) × (1.5–)1.7–2(–2.2) µm

O. carpoboloides *(7.7–)8.5–14(–17) × (2–)2.2–2.8(–3.5) µm

So it should be the latter.

Miguel Ángel Ribes, 29-11-2019 13:58

Re : En tela de algodón

Hey, great, I founded it some days ago at Portugal on Salix bark. O. carpoboloides too.

Thanks.

Hans-Otto Baral, 29-11-2019 14:56

Re : En tela de algodón

Ah, both Galicia and Portugal are empty on my distribution map. Would be pleased to get the collection data. Miguel-Angel, are your spores also long and narrow like those?

Hans-Otto Baral, 01-12-2019 08:57

Re : En tela de algodón

Hi Joseba and Miguel-Angel

I would be pleased to hear from where your samples come.

Zotto

Castillo Joseba, 01-12-2019 09:46

Re : En tela de algodón

Hola Zotto, estoy pendiente de que me envien los datos de recolecta de Galicia, en cuanto los tenga te los envio

Castillo Joseba, 01-12-2019 19:19

Re : En tela de algodón

Estos datos me mandan desde Galicia

Recolectos Miguel Angel Delgado
Fecha de la reclecta 27/10/2019
courdenadas 42.478222 -8.882649
Ogrove Pontevedra España

Saludos
Joseba

Miguel Ángel Ribes, 01-12-2019 20:27

Re : En tela de algodón

Hi Zotto

My spores are 16x2,2 microns. Perhaps tomorrow I could send more accuracy measurements.

Portugal, Sabugal, Quercus pyrenaica forest with Salix, Castanea sativa and more, on Salix bark with another orange-red Orbilia not studied yet, 40°21'18.4"N, 7°02'01.9"W, 925 m., leg. Miguel Á. Ribes.

Thanks a lot.

Hans-Otto Baral, 01-12-2019 20:42

Re : En tela de algodón

Thanks Miguel-Angel! So you had very long and narrow spores as well. Do you have any images? Of course the apothecia were hairy?

And thanks Joseba!

Miguel Ángel Ribes, 02-12-2019 00:12

Re : En tela de algodón

Hi Zotto

Tomorrow I will send you some pictures too.

Miguel Ángel

Miguel Ángel Ribes, 02-12-2019 13:23

Re : En tela de algodón

Hi Zotto

Here are some measurements and pictures:

Spores (1000x, H2O, live)
(13,8) 14 - 18,3 (19,1) × (2) 2,2 - 2,5 (2,8) µm
Q = (4,9) 6,1 - 7,9 (8,4) ; N = 45
Me = 16,2 × 2,3 µm ; Qe = 7

Asci (1000x, H2O, live + died)
(79,7) 80,2 - 104,7 (118,9) × (4,9) 5 - 6,1 (6,6) µm
N = 17; Me = 93,1 × 5,7 µm

Conidiospores?? (1000x, H2O, live)
23,1 - 28,46 (28,5) × (18,5) 18,53 - 20 µm
N = 5; Me = 24,5 × 19,6 µm

Asci have the first fourth spores not inverted and the second fourth spores inverted.

I saw "in situ", at Portugal, a sample plenty of "conidiospores??", but I hadn't my camera. Days later, at home, I have only find some of them.

Miguel Ángel

Hans-Otto Baral, 02-12-2019 15:22

Re : En tela de algodón

Boah, such long and narrow spores! This supports a suspicion that carpoboloides is heterogeneous. But a sharp line to short+wide-spored samples is very difficult to draw.

The conidia should belong to Hyalorbilia orbiliicola (a species very similar to H. erythrostigma) growing on Orbilia apos, often also with their small apothecia.

A sequence could clarify whether the long-spored variants merit distinction, given that the parasitic Hyalorbilia does not disturb the extract.

The two identical sequences that we have are short+wide-spored:

Netherlands: *9.5–11.7(–13) × 2.7–3(–3.5) µm,

Luxembourg: *10–14 × 3–3.4(–3.8) µm.

Zotto

Hans-Otto Baral, 03-12-2019 16:01

Re : En tela de algodón

Miguel-Angel, I miss a date for your sample. The orange Orbilia might be O. aurantiorubra?

Miguel Ángel Ribes, 03-12-2019 22:03

Re : En tela de algodón

Ok, Zotto, I will try to sequenced it.

I have not study yet the other Orbilia, I will send it here.

Thanks.

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