American Potato Journal

, Volume 68, Issue 10, pp 675–680 | Cite as

Correlation of phytotoxin production with pathogenicity ofStreptomyces scabies isolates from scab infected potato tubers

  • Russell R. King
  • C. Harold Lawrence
  • Mervyn C. Clark


A total of 23 isolates obtained from scab infected potato tubers representative of six sampling areas in Eastern and Central Canada and five ATCCStreptomyces strains were screened for pathogenicity on the basis of their ability to initiate scab development on aseptically cultured minitubers and plant generated tubers. The results were then correlated with any associated generation of the scab inducing phytotoxin, Thaxtomin A. In all cases a positive correlation was demonstrated between the pathogenicity of variousStreptomyces scabies isolates and their ability to produce the phytotoxin.


Streptomyces Potato Tuber AMERICAN Potato Journal Scabies Sarna 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Un total de 23 aislamientos obtenidos de tubérculos de papa infectados con sarna, representativos de seis áreas de muestreo del este y centro del Canadá y cinco ATCC especies deStreptomyces fueron evaluados y seleccionados para patogenicidad en base a su capacidad de iniciar el desarrollo de la sarna en mini-tubérculos asépticamente cultivados y en tubérculos obtenidos de plantas. Los resultados fueron luego correlacionados con cualquier asociación con la generación de la fitotoxina inducida por la sarna, Thaxtomina A. En todos los casos quedó demostrada la existencia de una correlación positiva entre la patogenicidad de varios aislamientos deStreptomyces scabies y su capacidad para producir la fitotoxina.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature Cited

  1. 1.
    Barker, W.G. and C.H. Lawrence. 1963. Pathogenicity ofStreptomyces scabies on potato tubers culturedin vitro. Nature (London) 199:509–510.CrossRefGoogle Scholar
  2. 2.
    King, R.R., C.H. Lawrence, M.C. Clark and L.A. Calhoun. 1989. Isolation and characterization of phytotoxins associated withStreptomyces scabies. J Chem Soc Chem Commun 13:849–850.CrossRefGoogle Scholar
  3. 3.
    Lambert, D.H. and R. Loria. 1989.Streptomyces scabies sp. nov., nom rev. Int J Syst Bacteriol 39:387–392.CrossRefGoogle Scholar
  4. 4.
    Lambert, D.H. and R. Loria. 1989.Streptomyces acidiscabies sp. nov. Int J Syst Bacteriol 39:393–396.Google Scholar
  5. 5.
    Lawrence, C.H. 1956. A method of isolating actinomycetes from scabby potato tissue and soil with minimal contamination. Can J Bot 34:44–47.CrossRefGoogle Scholar
  6. 6.
    Lawrence, C.H. and W.G. Barker. 1963. A study of tuberization in the potato,Solanum tuberosum. Am Potato J 40:349–356.Google Scholar
  7. 7.
    Lawrence, C.H., M.C. Clark and R.R. King. 1990. Induction of common scab symptoms in aseptically cultured potato tubers by the vivotoxin, Thaxtomin. Phytopathology 80:606–608.CrossRefGoogle Scholar
  8. 8.
    Loria, R. and B.A. Kempter. 1986. Relative resistance of potato tubers produced from stem cuttings and seed-piece propagated plants toStreptomyces scabies. Plant Dis 70:1146–1148.CrossRefGoogle Scholar

Copyright information

© Springer 1991

Authors and Affiliations

  • Russell R. King
    • 1
  • C. Harold Lawrence
    • 1
  • Mervyn C. Clark
    • 1
  1. 1.Research Branch, Research StationAgriculture CanadaFrederictonCanada

Personalised recommendations