The Gross Luesewitz Potato Collections of the IPK Genebank (GLKS)
The Gross Luesewitz Potato Collections contain more than 6,200 samples, consisting of a cultivar collection with 2,750 samples (KKS), a collection of short-day adapted genotypes from the Andean and equator region (AKS, 600 accessions, mainly native Andean cultivars), and a collection of more than 130 wild and cultivated potato species from South and Central America (WKS) with approximately 2,850 populations.
The maintenance of the AKS and the KKS accessions is achieved in its major proportion via in vitro culture, but also takes place in the field (for evaluations, control of variety purity and production of tubers for interested parties). In addition, cryopreservation - conducted by IPK's research group 'Cryo and Stress Biology' at Gatersleben - is used as an additional technique. The maintenance of the generatively propagated WKS species as populations is conducted via seed production in the greenhouse. The generated seeds are stored locally at 4°C and as safety duplicates at Svalbard Global Seed Vault (Norway) or at Malchow/Poel, respectively.
In cooperation with the Julius Kuehn Institute (Gross Luesewitz and Kleinmachnow) and the Rostock Plant Protection Office, resistance screens in respect to important potato pests are conducted (mainly Globodera pallida, Phytophthora infestans, Synchytium endobioticum). The respective results are available via Internet or by request.
With regard to health status, the entire potato germplasm is being tested systematically and in defined periods against quarantine diseases. This happens in co-operation with the responsible Plant Protection Offices. For in vitro plantlets, special measures for virus eradication are conducted. At field cultivation, the occurrence of latent viruses (PVS, partly PVX) is tolerated, which should be considered when requesting tubers from the field.
For private requests, generally only tubers of cultivated accessions are available, but no in vitro plantlets or cryo cultures (for a list of all available tuber samples click here). For each material request, a Standard Material Transfer Agreement (SMTA; also necessary for requests from the Malchow collections) has to be agreed upon between the recipient and IPK. For this, either an online ticking of the SMTA via the direct placing of orders is feasible via IPK’s Genebank Information System GBIS. Alternatively, a printed paper version can be utilized (please note that a handling fee applies since July 2016).