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Hypoxylon
Eduardo Benguría,
20-07-2012 16:25
Este Hypoxylon está cogido en Tenerife en bosque de laurisilva, probablemente en madera de Prunus lusitanica ssp. Hixa
Ascas de aprox. 100 µm con disco amiloide de 2.5x1 µm
Esporas de 9-11x4.5-5.5 µm de perfil simétrico y con hendidura germinativa de longitud similar al de la espora
Estroma con polvillo amarillo y con una reacción casi nula al KOH 10%, quizá un débil color púrpura
Estoy pensando en Hypoxylon carneum pero esas esporas casi rómbicas me despistan
¿Qué os parece?
Saludos,
Eduardo
Jacques Fournier,
20-07-2012 16:39
Re : Hypoxylon
Hola Eduardo,
I agree with you it is not H. carneum and the shape of ascospores is most unusual. Many undescribed species of Hypoxylon occur in Canary islands and yours seems to be a good candidate. Can you send me a part of your collection, gently dried (not on a dryer) and wrapped in paper?
Thanks,
Jacques
My postal address is:
Jacques Fournier
Las Muros
09420 Rimont
France
I agree with you it is not H. carneum and the shape of ascospores is most unusual. Many undescribed species of Hypoxylon occur in Canary islands and yours seems to be a good candidate. Can you send me a part of your collection, gently dried (not on a dryer) and wrapped in paper?
Thanks,
Jacques
My postal address is:
Jacques Fournier
Las Muros
09420 Rimont
France
Eduardo Benguría,
20-07-2012 17:20
Re : Hypoxylon
No hay problema Jacques, mañana te mando la muestra
Eduardo
Eduardo
Jacques Fournier,
14-10-2012 19:18
Re : Hypoxylon
Hola Eduardo,
I eventually checked your Hypoxylon, sorry for the long delay. I am stil waiting for HPLC and cultural data but based on morphology everything fits well H. carneum.
I did not observe those rhomboid ascospores you mentionned, maybe they were tightly packed in an ascus and not well rehydrated, which may sometimes account for such angular shapes. Take this as a prelimnary result, I will keep you informed when I have more data.
Cheers,
Jacques
I eventually checked your Hypoxylon, sorry for the long delay. I am stil waiting for HPLC and cultural data but based on morphology everything fits well H. carneum.
I did not observe those rhomboid ascospores you mentionned, maybe they were tightly packed in an ascus and not well rehydrated, which may sometimes account for such angular shapes. Take this as a prelimnary result, I will keep you informed when I have more data.
Cheers,
Jacques
Eduardo Benguría,
14-10-2012 20:32
Re : Hypoxylon
Hola Jacques:
Muchas gracias por esta información y esperaremos las noticias de HPLC para confirmar el probable H. carneum. Por mi parte, voy a volver a mirar las esporas con un tiempo bastante mayor de rehidratación
Saludos cordiales,
Eduardo
Muchas gracias por esta información y esperaremos las noticias de HPLC para confirmar el probable H. carneum. Por mi parte, voy a volver a mirar las esporas con un tiempo bastante mayor de rehidratación
Saludos cordiales,
Eduardo
FELIPE SAN MARTÍN,
15-10-2012 18:49
Re : Hypoxylon
La forma del estroma me recuerda una especie de Jumillera o de Whalleya. Pero hay que cultivarlo para ver el tipo de anamorfo.
Ver: Mycotaxon 64: 39-50. 1997.
Ver: Mycotaxon 64: 39-50. 1997.
Jacques Fournier,
15-10-2012 21:32
Re : Hypoxylon
Hi Felipe,
the thinly effused stroma is indeed unusual and may remind of Whalleya but it does contain pale yellowish granules beneath surface, which sets it apart from both Whalleya and Jumillera.
Hope futher data will become available soon.
Jacques
the thinly effused stroma is indeed unusual and may remind of Whalleya but it does contain pale yellowish granules beneath surface, which sets it apart from both Whalleya and Jumillera.
Hope futher data will become available soon.
Jacques
Jacques Fournier,
04-02-2013 16:54
Re : Hypoxylon
Hola Eduardo,
thanks for being so patient! I eventually received from Marc Stadler the HPLC results of your Hypoxylon sample, the profile fits perfectly H. carneum with presence carneic acids A and B.
I send you the analysis report in private.
Cheers,
Jacques
thanks for being so patient! I eventually received from Marc Stadler the HPLC results of your Hypoxylon sample, the profile fits perfectly H. carneum with presence carneic acids A and B.
I send you the analysis report in private.
Cheers,
Jacques