Survey of Bacterial and Fungal Seedborne Diseases in Imported and Domestic Potato Seed Tubers
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
Potato seed tubers are imported to Israel from northern Europe and planted in spring; tubers harvested early from the spring crop are used as seed for the autumn crop. Although only seed lots registered as certified are imported, a previous survey (1984–1994) indicated that most imported lots were affected by latent or active infections caused byErwinia carotovora,Streptomyces scabies, Rhizoctonia solani, Fusarium spp. andSpongospora subterranae. The survey was extended until 1998, and included additional pathogens:Ralstonia solanacearum,Helminthosporium solani, Colletotrichum coccodes andVerticillium dahliae. Most of these pathogens were also monitored in domestic seed tubers, and are reported for the first time. Brown rot was not observed in any of the imported lots. Blackleg and soft rot caused byErwinia spp. were detected in most of the imported lots; however, less than 7% of the lots were contaminated at high levels, while approximately 65% were contaminated at moderate levels. Common scab was detected in most of the imported lots; 51% of the imported lots were contaminated at moderate or high levels, whereas only 6.5% of the domestic seed lots were contaminated at these levels. Black scurf was detected in most of the imported lots; on average, 47.3%, 44.2% and 1.4% of the lots were contaminated at low, moderate and high levels, respectively, and only 7.1% were disease-free. In contrast, most of the domestic lots were either disease-free (45.4%) or had a low disease incidence (37.3%). Only 16.7% of the lots were moderately infected and 0.2% were highly contaminated. Silver scurf was observed in most of the imported lots during all years of the survey, with no differences among the producing countries; on average, 22.7%, 66.1% and 7.5% of the lots were contaminated at low, moderate and high levels, respectively, and only 3.7% were disease-free. Most of the domestic lots (76%) were disease-free and only 6.6% were infected at moderate or high levels. Black dot was observed in a considerable portion of the shipments from Holland during all years of the survey, particularly in 1998, when 34% of the lots were infected. The shipments from France and Germany were infected at low levels, except in 1998, when 19% and 11% of the lots, respectively, arrived infected. In shipments from Scotland and Ireland low incidences of the disease were observed in 1994 and 1995. In the domestic lots, black dot incidence was low (<2.4%) except in 1996, when 11% of the lots were infected.V. dahliae was monitored only in domestic seed tubers. The incidence of disease-free lots was 56–64%, whereas in 20–30% of the lots the level of infection was <5%, and in 6–16% of the lots the level was >5%. The survey findings demonstrate transmission of seedborne pathogens; most of these pathogens can become established in the soil and eventually cause severe outbreaks of disease in potatoes grown in Israel.
- Adams, M.J., Hide, G.A. and Lapwood, D.H. (1980) Relationships between disease levels on seed tubers, on crop during growth and in stored potatoes. 1. Introduction and black scurf.Potato Res. 23:201–214. CrossRef
- Bain, R., Pérombelon, M.C.M., Tsror, L. and Nachmias, A. (1990) Epidemiology and etiology of blackleg.Plant Pathol. 39:125–133. CrossRef
- Bang, U. (1986) Effects of pi anting potato tubers attacked byPhoma exigua var.foveata on yield and contamination of progeny tubers.Potato Res. 29:321–331. CrossRef
- Chen, Y., Gamliel, A., Stapelton, J.J. and Aviad, T. (1991). Chemical, physical and microbial changes related to plant growth. pp. 103–129.in: Katan, J. and DeVay, J.E. [Eds.] Soil Solarization. CRC Press, Boca Raton, FL, USA.
- Englebrecht, (1994) Modified SMSA selective medium for isolation and diagnosis ofPseudomonas solanacearum. Bacterial Wilt Newsletter No. 10, pp. 3–5. ACIAR, Canberra, Australia.
- Forsund, E. (1987) Black scurf (Rhizoctonia solani Kühn) on tubers, roots, stems and stolons of the potato plants.in: Potato Diseases — Assessment Keys. European Association for Potato Research, Section for Pathology, Wageningen, the Netherlands. pp. 39–48.
- Hide, G.A., Griffith, R.L. and Adams, M.J. (1977) Methods of measuring the prevalence ofPhoma exigua on potatoes and in soil.Ann. Appl. Biol. 87:7–15. CrossRef
- Hooker, W.J. (1981) Compendium of Potato Diseases. The American Phytopathological Society, St. Paul, MN, USA.
- Nachmias, A. and Krikun, J. (1988) Etiology and control of powdery scab of potato in a semi- arid region of Israel.Phytoparasitica 16:33–38. CrossRef
- Pérombelon, M.C.M. (1972) The extent and survival of contamination of potato stocks in Scotland byErwinia carotovora subsp.atroseptica andErwinia carotovora subsp.carotovora. Ann. Appl. Biol. 71:111–117. CrossRef
- Pérombelon, M.CM. (1992) Blackleg development and control in the Mediterranean region.Proc. Symp. on Advanced Potato Production in Hot Climates (Nahal Oz, Israel), pp. 46–54.
- Pérombelon, M.C.M., Lumb, V.M. and Hyman, L.J. (1987) A rapid method to identify and quantify soft rot erwinias on seed potato tubers.EPPO Bull. 17:25–35. CrossRef
- Pérombelon, M.C.M., Lumb, V.M. and Zutra, D. (1987) Pathogenicity of soft rot erwinias to potato plants in Scotland and Israel.J. Appl. Bacteriol. 63:73–84.
- Powelson, M.L., Johnson, K.B. and Rowe, R.C (1993) Management of diseases caused by soilborne pathogens.in: Rowe, R.C. [Ed.] Potato Health Management. The American Phytopathological Society Press, St. Paul, MN, USA. pp. 149–156.
- Scholte, K. (1989) Effects of soilborneRhizoctonia solani Kühn on yield and quality of ten potato cultivars.Potato Res. 32:367–376. CrossRef
- Tsror (Lahkim), L., Erlich, O., Aharon, M. and Nachmias, A. (1998) Potato seed-borne diseases in Israel.Israel Agres. 9:127–139 (Hebrew, with English summary).
- Tsror (Lahkim), L., Erlich, O., Chen, C, Ben-Ze’ev, I., Kritzman, G. and Zutra, D. (1996) Detection of brown rot in imported potato seeds.Phytoparasitica 24: 136 (abstr.).
- Tsror, L., Erlich, O., Hazanovski, M., Nachmias, A. and Perets, L. (1994)Colletotrichum in potato — Is it a new disease?Phytoparasitica 22: 89–90 (abstr.).
- Tsror (Lahkim), L., Nachmias, A., Erlich, O., Aharon, M. and Pérombelon, M.C.M. (1993) A 9-year monitoring study of diseases on potato seed tubers imported to Israel.Phytoparasitica 21:321–328. CrossRef
- Survey of Bacterial and Fungal Seedborne Diseases in Imported and Domestic Potato Seed Tubers
Volume 27, Issue 3 , pp 215-226
- Cover Date
- Print ISSN
- Online ISSN
- Springer Netherlands
- Additional Links
- Erwinia carotovora
- Streptomyces scabies
- Ralstonia solanacearum
- Rhizoctonia solani
- Helminthosporium solani
- Colletotrichum coccodes
- Fusarium spp.
- Spongospora subterranae
- Verticillium dahliae
- Industry Sectors