Full text of this article is only available in PDF format.

Alberto Bueno, Julio J. Diez, Mercedes M. Fernández (email)

Ophiostomatoid fungi transported by Ips sexdentatus (Coleoptera; Scolytidae) in Pinus pinaster in NW Spain

Bueno A., Diez J. J., Fernández M. M. (2010). Ophiostomatoid fungi transported by Ips sexdentatus (Coleoptera; Scolytidae) in Pinus pinaster in NW Spain. Silva Fennica vol. 44 no. 3 article id 137. https://doi.org/10.14214/sf.137

Abstract

Ips sexdentatus (Coleoptera; Scolytidae) is one of the main vectors of ophiostomatoid blue stain fungi that can cause mortality of healthy conifers. For this reason, our objective was to identify the fungal species carried by this bark beetle in Maritime pine (Pinus pinaster) in north-western Spain. We collected insects from naturally infected pines placed them on malt extract agar (MEA) and left to walk freely on culture plates. Plant tissues (phloem and xylem) from adult pines were cultivated in moist chambers and also on MEA. At the same time, we inoculated pine logs with living insects in the laboratory. Four ophiostomatoid fungi appeared: Ophiostoma ips, Ophiostoma brunneo-ciliatum, Ceratocystiopsis minuta and Ophiostoma sp., as well as Graphium and Sporothrix imperfect stages. Moreover there were seven saprophytic species: Penicillium sp., Trichoderma sp., Verticillium sp., Mucor sp., Aspergillus niger, Gliocladium viride and Scopulariopsis brevicaulis, and the pathogenic Ophiostoma ips. The fructification percentage of the ophiostomatoid species was low, however; its imperfect stage Sporothrix/Hyalorhinocladiella produced high quantity of conidiophores.

Keywords
Spain; Ips sexdentatus; ophiostomatoid fungi; Pinus pinaster; mycangia

Author Info
  • Bueno, University of Valladolid, Dept of Agroforestry Sciences, Palencia, Spain E-mail ab@nn.es
  • Diez, University of Valladolid, Dept of Agroforestry Sciences, Palencia, Spain E-mail jjd@nn.es
  • Fernández, University of Valladolid, Dept of Agroforestry Sciences, Palencia, Spain E-mail mffernan@agro.uva.es (email)

Received 5 November 2009 Accepted 9 April 2010 Published 31 December 2010

Views 3479

Available at https://doi.org/10.14214/sf.137 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Send to email
Bueno A., Diez J. J. et al. (2010) Ophiostomatoid fungi transported by Ips sexdenta.. Silva Fennica vol. 44 no. 3 article id 137 (remove) | Edit comment
Your search results