Fondement et organisation des réseaux européens de conservation des ressources génétiques forestières

Arbez, Michel

doi:10.1186/1297-9686-26-s1-s301

Cited by 3 publications

(2 citation statements)

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“…Este compromiso internacional fue reconfirmado en la Segunda Conferencia Ministerial (Helsinki, 1993) y en la Tercera Conferencia Ministerial (Lisboa, 1998), donde se adoptaron Resoluciones adicionales con componentes pertinentes a los recursos genéticos y su conservación. internacional para implementar la Resolución S2 (Arbez, 1994). Su desarrollo y gestión ha sido emprendida por el Instituto Internacional de Recursos Genéticos de Plantas (IPGRI) en colaboración con la Organización de Agricultura y Alimentación de las Naciones Unidas (FAO), Departamento Forestal.…”

Section: El Compromiso -La Resolución S2 De Estrasburgounclassified

EUFORGEN: The road from Strasbourg Resolution S2

Turok¹,

Borelli²

2000

For. syst.

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The European Forest Genetic Resources Programme (EUFORGEN) was endorsed at the Second Ministerial Conference in Helsinki as the instrument of international cooperation for implementing Resolution S2 of the first Ministerial Conference in Strasbourg. EUFORGEN is financed by participating countries and the coordinating secretariat is hosted by IPGRI. The Programme is overseen by a Steering Committee composed of National Coordinators from all participating countries. National Coordinators also act as formal link between the coordinating secretariat and national institutions involved in the activities on forest genetic resources. They seek to commit all relevant institutions within their country to carry out the agreed tasks and liaise between them. The programme work operationally based on four «pilot» Networks, focused on a selected set of species. These not only reflected national priorities for the conservation of the most threatened genetic diversity and its actual or potential use, but also covered different types of ecogeographic and genetic distribution patterns. The five Networks operating during Phase II of EUFORGEN are: Conifers (started as Picea abies Network), Mediterranean oaks (started as Quercus suber Network), Populus nigra (and P. alba), Noble Hardwoods and Social Broadleaves. The collaborative activities of the Networks typically include regular exchange of information, development of genetic conservation strategies and technical guidelines, common descriptors and databases, identification of common research needs and preparation of joint project proposals, exchange of genetic materials, literature overviews, and public awareness activities. Network members, in collaboration with other scientists and forest officers from participating countries, carry out the tasks of agreed workplans with their own resources as inputs in kind to the Programme. Many practical outputs have been produced by the Networks to date and are briefly summarised in this paper.

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Section: El Compromiso -La Resolución S2 De Estrasburgounclassified

EUFORGEN: The road from Strasbourg Resolution S2

Turok¹,

Borelli²

2000

For. syst.

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“…(Turkish red pine) is the most common and widely distributed coniferous species in Türkiye, covering approximately 5.2 million ha (GDF, 2021). The natural distribution of this tree is in the coastal regions of the Mediterranean and the Aegean Regions of Türkiye, although it is also found in western Anatolia and the central Black Sea Regions (Arbez, 1974). This pine is one of the main species used in reforestation in southern and western Türkiye.…”

Section: Introductionmentioning

confidence: 99%

Sydowia polyspora associated with current season needle necrosis (CSNN) on Pinus brutia Ten. in Türkiye

Beram,

Demiröz

2024

Forest Pathology

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Sydowia polyspora is a common fungal species living on conifers, often occurring as an epiphyte or endophyte on asymptomatic plants and in seeds. The fungus may become pathogenic under abiotic or biotic stress conditions. It is often associated with current season needle necrosis and shoot dieback on conifer species, especially Abies spp. and Pinus spp. throughout Europe and North America. The conifer Pinus brutia is common and widely distributed in Türkiye and is frequently used in reforestation. The work described here aimed to investigate the S. polyspora associated with needle necrosis and shoot dieback in five different Pinus brutia stands located in Denizli‐Türkiye, to determine the severity of the disease and to reveal the pathogenicity of this agent in P. brutia seedlings. For this purpose, fungal isolations from symptomatic P. brutia needles were carried out in five different stands. In total, 68 S. polyspora isolates were obtained, each from a different tree from which macroscopic‐microscopic morphological characterization was made and molecular characterization was done using the internal transcribed spacer (ITS) region. BLAST analysis of the ITS sequences confirmed the identification of the isolates, with 99–100% similarity to previously reported sequences of S. polyspora. Disease incidence and severity were assessed in five P. brutia stands. The disease incidence ranged between 38% and 62% (mean = 47%) while disease severity varied among sites. Pathogenicity studies were carried out on 2‐year‐old P. brutia seedlings using obtained isolates. Infection frequency in inoculated shoots was 90%. The pathogenicity tests, followed by re‐isolation of the fungus from symptomatic shoots clearly demonstrated that S. polyspora played a role in the development of needle necrosis and shoot dieback in P. brutia stands. To the best of our knowledge, this is the first report of current season needle necrosis and shoot dieback on P. brutia caused by S. polyspora in Türkiye.

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