Selection of sources of potato resistance to wart Synchytrium endobioticum (Schilbersky) Percival

Zelya, A.; Oliinyk, T.M.; Zelya, G.

doi:10.32636/01308521.2020-(67)-2-5

Cited by 5 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some pathotypes have a considerably wider host range in terms of pathogenicity on different potato varieties than others, and thus, they pose a serious threat for potato production in Europe (Baayen et al., ). Occurrence of new pathotypes is attributed to many factors, including the use of resistant potato varieties and the presence of wild solanaceous weeds in potato fields (Melnik, ). However, the true number of pathotypes is not known and pathotype identification using differential varieties is hampered by inconsistent nomenclature (pathotype codes developed separately in each country or the same number has been used for different pathotypes), the lack of internationally accepted differential potato varieties, the diversity of test methods and the diverse rating systems used to classify levels of resistance (Baayen et al., ; Flath et al., ).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…As a result, only a few potato varieties are resistant to all three most important pathotypes widespread in Europe, i.e. 2(G1), 6(O1) and 18(T1) (Langerfeld et al., ; Melnik, ; Baayen and Stachewicz, ; Ballvora et al., ). For example, in 2013 in the Netherlands, only eight varieties were listed as being resistant to pathotypes 2(G1) and 6(O1) and only one of them was also resistant to pathotype 18(T1) (Anonymous, ).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…Direct yield losses are dependent on soil conditions during tuber development, the susceptibility of the potato variety grown, the aggressiveness of the pathotype(s) present in the infested field(s) and the inoculum (winter sporangia) concentration in the soil (Wale et al., ; Molet et al., ). Yield losses between 50 and 100% have been reported worldwide (Hampson, ; Melnik, ; Baker et al., ; Franc, ). The warts continue to develop during storage of potato tubers resulting in additional losses.…”

Section: Pest Categorisationmentioning

confidence: 99%

See 2 more Smart Citations

Pest categorisation of Synchytrium endobioticum

Jeger¹,

Bragard²,

Caffier³

et al. 2018

EFS2

View full text Add to dashboard Cite

The Panel on Plant Health performed a pest categorisation of the fungus Synchytrium endobioticum, the causal agent of potato wart disease, for the European Union (EU). The identity of the pest is well established and reliable methods exist for its detection and identification. S. endobioticum is present in most continents. The pest is listed in Annex IAII of Directive 2000/29/EC and is present with a restricted and fragmentary distribution in the EU. The major host is Solanum tuberosum (potato), but in Mexico, the pest also affects wild Solanum spp. S. endobioticum could potentially enter the EU through multiple pathways associated with soil as substrate for non‐host plants, contaminant or commodity. The presence of the pest in 16 EU Member States characterised by different climatic conditions suggests that it could establish in the rest of the EU. The disease induces the formation of warts on potato tubers, stolons and stem bases reducing plant growth and yield and making tubers unmarketable. Additional losses may occur during storage. The only available strategy to control the disease and prevent it from spreading is the application of strict phytosanitary measures and the cultivation of potato varieties resistant to the pathotype(s) present in the infested field(s). Specific phytosanitary measures exist (Council Directive 69/464/EEC) for the control of potato wart disease in the EU. The main uncertainties refer to the distribution and host range of the pest, and the importance of some pathways of entry. S. endobioticum meets all the criteria assessed by EFSA for consideration as potential Union quarantine pest. The criteria for considering S. endobioticum as a potential Union regulated non‐quarantine pest are not met since, in addition to potato seed tubers, soil (as commodity, substrate or contaminant) and ware potato tubers are major means of spread.

show abstract

Section: Pest Categorisationmentioning

confidence: 99%

Section: Pest Categorisationmentioning

confidence: 99%

Section: Pest Categorisationmentioning

confidence: 99%

See 1 more Smart Citation

Pest categorisation of Synchytrium endobioticum

Jeger¹,

Bragard²,

Caffier³

et al. 2018

EFS2

View full text Add to dashboard Cite

show abstract

Efficiency of detecting resting spores of Synchytrium endobioticum (potato wart disease) in infested sites of Ukraine and Georgia

Zelya¹,

Janse²,

Janse³

et al. 2021

Agric. sci. pract.

View full text Add to dashboard Cite

Aim. To determine the occurrence and persistence of Synchytrium endobioticum, resting spore contamination in a small survey of (known infested) potato plots in Ukraine and Georgia; to compare the detection efficiency for resting spores (winter sporangia) of S. endobioticum using an extraction method, routinely applied in Ukraine, based on the use of sodium iodide (NaI) and an extraction method largely based on EPPO Standard PM 7/28(2) (2017), using kaolin and calcium chloride (CaCl2) for extraction. Methods. The examination of fields, aimed at detecting of S. endobioticum in 22 infested plots in Georgia, was conducted following the standard European Plant Protection Organisation (EPPO) phytosanitary procedure PM 3/59(3) (2017), and in Ukraine in 11 plots according to the Ukrainian Standard ‘Methodological recommendations on sampling during quarantine inspection and evaluation’ (Omeluta V P et al, 1996). Resting spores were extracted using kaolin and CaCl2 (following largely EPPO Standard PM 7/28(2) 2017), and floatation in a solution of NaI (Zelya et al, 2005), respectively. The content of soil organic matter (SOM), collected in potato wart infested plots in Ukraine and Georgia, was determined according to the ‘Method of laboratory determination of the content of organic matter’, largely following the method of Tyurin to determine total soil organic carbon (Jankauskas B et al, 2006). The persistence or decline of potato wart in infested plots was evaluated, based on our own observations and the data of the national phytosanitary services (https://dpss.gov.ua; http://agr.georgia.gov). The results of the study were subjected to statistical analysis, using Statistica 5 software. Results. It was found that under a low up to high level of organic matter in soil samples (2.0–2.7 and 3.1–3.9 %, respectively) and a moderate to high level of inoculum in soil (3–15 up to 41–65 resting spores/g soil, respectively) there were no significant differences in the efficiency of two extraction methods under consideration: the floatation in a solution of NaI and the application of kaolin and CaCl2. However, at a low number of resting spores present in soil (1–2 resting spores/g soil), the efficiency of the method using NaI decreased statistically significant by 20–30 % as opposed to the method using kaolin/CaCl2. A relatively high level of soil contamination with resting spores was found in 11 investigated plots of 4 Ukrainian regions: 41–46 resting spores/g soil in the Ivano-Frankivsk Region, 49 in the Lviv Region, 40–65 in the Zakarpattia and 52–65 Chernivtsi Regions. The majority of the 22 investigated Georgian plots showed a low inoculum level (1–7 resting spores/g soil) and only in one village their level amounted to 15 resting spores/g soil (Uchguli village, Mestia municipality). Conclusions. The method applying sodium iodide was found to be comparable to the method applying kaolin and CaCl2 under conditions of moderate to high inoculum levels (15–65 resting spores/g soil) but the latter method was more efficient under conditions of high content of organic matter and very low inoculum level (

show abstract

Search of resistance sources to potato wart Synchytrium endobioticum (Schilbersky) Percival causative agent

Zelya,

Olyinik

et al. 2024

PSJ

Self Cite

View full text Add to dashboard Cite

Goal. To evaluate and to choose potato varieties breeding material resistant to wart and search resistance sources to causative agent of potato wart Synchytrium endobioticum (Schilbersky) Percival. Methods. The study involved 739 samples breeding of potatoes varieties Institute for potato study NAAS and its’ Polissian division in 2020—2022. The samples were received by different parents forms crossings. Evaluation of breeding material for resistance to common 1(D1) and aggressive pathotypes of potato wart was performed in the laboratory conditions of the Ukrainian Science Research Plant Quarantine Station IPP NAAS on an artificial infectious background according to EPPO Standard PM 7/28/1 and EPPO Standard PM 7/28/2 and «Techniques or evaluation and choice of potato breeding material resistant to wart Synchytrium endobioticum (Schilb.) Perc harmonized as per EU requirements» and in field conditions of pathogen spread. Results. A 699 potato samples (94.6%) from 739 hybrids from 2022-through 2022 received resistant value to common pathotype of wart causative agent. 40 (5.4%) samples were defeated by disease causative agent and they were rejected by us. The researches results showed that 21 outlet potato parents forms had the highest resistance degree (1.2—2.0 points). They recommended for the following usage in in breeding process as a resistance source to potato wart. Hybridological analysis for potato resistance inheritance provided on the following variants of parents forms crossing F09.209-3/P14.3/12, Svitana / Mezhzyrichka, Vyhoda / Svitana, Radmysl / Svitana,Vzirets / Svitana, P10.10/35/Svitana. 81.13.9/1/Svitana, P12.14-8/Partner, Zvizdal/P10.109/35, Mezhyrichka/Sncedar, Levada /Rostovytsya, Svitana Rostovytsya, Nagoroda Rostovytsya / Rostovytsya, ВМ12.24-15 /Vygoda, Floatka/Rostovytsya, Mezhyrichka/Dorogyn, Agave/Aria, 08.102/4/Miranda, Ivankivska rannya/Alliance, Vectar/Radmysl; Charunka/Alliance; Tyras/89.715с88. The potato resistant inheritance showed 100% to wart. The crossing variant F 09.209-3 / P10.9-3, P09.26-2/Alliance gave 50.0% resistant inheritance. The crossing variant Myroslava/Н.07.162-1 gave 88.9% resistant inheritance. Conclusions. There were chosen 699 (94,6%) among 739 potato samples in 2020—2022 resistant to common pathotype. Hybridological analysis for potato resistance inheritance to wart showed that variant resistant (♀) × resistant (♂) give 100% resistance to wart potato inheritants. The most resultative resistant potato samples choice was resistant to D1 (common) and 22 (Bystrysia) agressive pathotype during potato breeding studies with complex resistance to wart pathotypes in 2021—2022. The most virulent was 18 (Yasynnia) aggressive pathotype. There were only 5 (21.7%) resistant to this wart pathotype. Chosen samples with complex resistance to wart pathotypes recommended for the following usage in breeding. They recommended for improve in disease sources and for the following usage in breeding process as potato resistance sources to disease causative agent and for the improving in disease sources.

show abstract

Selection of sources of potato resistance to wart Synchytrium endobioticum (Schilbersky) Percival

Cited by 5 publications

References 0 publications

Pest categorisation of Synchytrium endobioticum

Pest categorisation of Synchytrium endobioticum

Efficiency of detecting resting spores of Synchytrium endobioticum (potato wart disease) in infested sites of Ukraine and Georgia

Search of resistance sources to potato wart Synchytrium endobioticum (Schilbersky) Percival causative agent

Contact Info

Product

Resources

About