First report of <i>Synchytrium endobioticum</i> causing potato wart in Georgia

Gorgiladze, L.; Meparishvili, G.; Sikharulidze, Z.; Natsarishvili, K.; Meparishvili, S.

doi:10.5197/j.2044-0588.2014.030.004

Cited by 7 publications

(7 citation statements)

References 3 publications

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“…Although S. endobioticum seems to be in remission in Europe, new foci have appeared in countries with warmer continental climate (Turkey, Georgia, Bulgaria, and Greece) (Anon 2015;Gorgiladze et al 2014;Vloutoglou pers comm. 2015).…”

Section: Looking Forwardmentioning

confidence: 99%

The Potato Crop

2020

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Section: Looking Forwardmentioning

confidence: 99%

The Potato Crop

2020

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“…In Georgia, the identification of potato wart disease by specific PCR was made in 2013 (Gorgiladze et al, 2014). Isolates pw13N and pw13 of S. endobioticum were collected from different fields in the infested area of the village of Didadjara, Khulo for pathotype identification, as described below.…”

Section: Methodsmentioning

confidence: 99%

“…The disease has now become an important problem for the production of potatoes in Georgia. It was first detected during observations of potato home gardens in 2009-2013 in Khulo district, where the disease seems to have occurred since 2006, but confirmation of wart presence by PCR was possible in 2013 (Gorgiladze et al, 2014). In a neighbouring country, Turkey, the disease was detected in 2005 (Cakir, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…In the last 10 years a new pathotype of S. endobioticum, 38(Nevşehir), was reported in Turkey (Cakir et al ., ) and pathotype 39(P1) was reported from Poland (Przetakiewicz, ). After the first detection of potato wart disease in Georgia (Gorgiladze et al ., ), identification of pathotypes was initially not performed. In order to prevent the spread of potato wart disease, and limit yield losses, it was consequently essential to identify the pathotypes occurring in Georgia and subsequently to cultivate wart‐resistant varieties.…”

Section: Introductionmentioning

confidence: 99%

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Identification of the pathotype of Synchytrium endobioticum, causal agent of potato wart disease, present in Georgia

Sikharulidze

Ghoghoberidze

Mentink³

et al. 2019

EPPO Bulletin

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Potato wart is one of the most important quarantine diseases of potato in the world. In Georgia, symptoms of wart were first seen in 2009–2013 during observations on potato in home gardens in Khulo district, although they may have been present since 2006. However, potato wart presence was only confirmed by PCR in 2013. Isolates pw13N and pw13 of Synchytrium endobioticum collected from the infested area of the village Didadjara, Khulo municipality were tested using laboratories in Georgia and the Netherlands in the framework of collaboration between scientists of Batumi State University and the National Plant Protection organization of the Netherlands. Additionally, pot tests were carried out in Georgia. Based on the results obtained, the pathotype found in Georgia is not known from Europe, and based on its reactions this pathotype resembles pathotype 38 (Nevşehir) detected in (the non‐European part of) Turkey.

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“…S. endobioticum was reported from Georgia for the fi rst time in 2014, but was already observed since 2009, possibly 2006 (Gorgiladze L et al, 2014;Sikharulidze ZV, 2019) By 2019 the potato wart spread to two municipalities (23 villages) and is listed as an A2 pest by the Ministry of Agriculture of Georgia (Ghoghoberidze S et al, 2019). The isolates of S. endobioticum obtained from the villages of Skvana, Uchkho, and Dzirkvadzeebi, Khulo municipality (Georgia) belonged to pathotype 38 (Nevşehir), widespread in Turkey (Ghoghoberidze S et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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.

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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 (

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First report of Synchytrium endobioticum causing potato wart in Georgia

Cited by 7 publications

References 3 publications

The Potato Crop

The Potato Crop

Identification of the pathotype of Synchytrium endobioticum, causal agent of potato wart disease, present in Georgia

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

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