scholarly journals How plants differ in toxin-sensitivity

Science ◽  
2017 ◽  
Vol 358 (6369) ◽  
pp. 1383-1384 ◽  
Author(s):  
Guido Van den Ackerveken
Keyword(s):  
Toxin Sensitivity

Transfer of methomyl and HmT-toxin sensitivity from T-cytoplasm maize to tobacco

1991 ◽  
Vol 229 (3) ◽  
pp. 405-412 ◽  
Author(s):  
Jean-Marc von Allmen ◽  
William H. Rottmann ◽  
Burle G. Gengenbach ◽  
Alison J. Harvey ◽  
David M. Lonsdale
Keyword(s):  
Toxin Sensitivity

scholarly journals Sensitivity to a Phytotoxin from Rhizoctonia solani Correlates with Sheath Blight Susceptibility in Rice

2007 ◽  
Vol 97 (10) ◽  
pp. 1207-1212 ◽  
Author(s):  
Steven A. Brooks
Keyword(s):  
Rhizoctonia Solani ◽  
Host Resistance ◽  
Epistatic Interaction ◽  
Disease Susceptibility ◽  
Sheath Blight ◽  
Broad Host Range ◽  
Rice Cultivars ◽  
Plant Leaves ◽  
Toxin Sensitivity ◽  
Traditional Approaches

Sheath blight is one of the most important and intractable diseases of rice (Oryza sativa) where limited control has been achieved using traditional approaches. Quantitative inheritance, extraneous traits, and environmental factors confound genetic analysis of host resistance. A method was developed to isolate and utilize a phytotoxin from Rhizoctonia solani to investigate the genetics of sheath blight susceptibility. Infiltration of the toxin preparation into plant leaves induced necrosis in rice, maize, and tomato. Using 17 rice cultivars known to vary in sheath blight resistance, genotypes were identified that were sensitive (tox-S) and insensitive (tox-I) to the toxin, and a correlation (r = 0.66) between toxin sensitivity and disease susceptibility was observed. Given the broad host range of R. solani, genotypes of host species may be both tox-S and tox-I. A total of 154 F2 progeny from a cross between Cypress (tox-S) and Jasmine 85 (tox-I) segregated in a 9:7 ratio for tox-S/tox-I, indicating an epistatic interaction between two genes controls sensitivity to the toxin in rice. This work provides the means to genetically map toxin sensitivity genes and eliminate susceptible genotypes when developing sheath blight-resistant rice cultivars.

Regional assignment of the gene for diphtheria toxin sensitivity using subchromosomal fragments in microcell hybrids

Chromosoma ◽  
1987 ◽  
Vol 96 (1) ◽  
pp. 26-32 ◽  
Author(s):  
H�l�ne Hayes ◽  
Yasufumi Kaneda ◽  
Tsuyoshi Uchida ◽  
Yoshio Okada
Keyword(s):  
Diphtheria Toxin ◽  
Toxin Sensitivity ◽  
Microcell Hybrids ◽  
Regional Assignment
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