In vitro testing of rose rootstocks resistance to crown gall disease

Fifteen rose rootstocks which were cultured and propagated in vitro were inoculated with the strain GOU1 of Agrobacterium tumefaciens as a test for resistance to the crown gall disease. Rosa multiflora and R. multiflora 'K2' were highly susceptible, 95% and 90% of the stems forming large t...

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Published inEngei Gakkai zasshi Vol. 69; no. 2; pp. 171 - 175
Main Authors Zhou, L. (Gifu Univ. (Japan)), Suzuki, K, Naruse, T, Fukui, H, Matsumoto, S, Kageyama, K
Format Journal Article
LanguageEnglish
Published THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE 01.03.2000
Subjects
AGROBACTERIUM TUMEFACIENS
crown gall disease
DISEASE RESISTANCE
in vitro inoculation
PORTAINJERTOS
PORTE GREFFE
resistance
RESISTANCE AUX MALADIES
RESISTENCIA A LA ENFERMEDAD
rootstock
ROOTSTOCKS
ROSA
ROSA (GENERO)
rose
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Summary:Fifteen rose rootstocks which were cultured and propagated in vitro were inoculated with the strain GOU1 of Agrobacterium tumefaciens as a test for resistance to the crown gall disease. Rosa multiflora and R. multiflora 'K2' were highly susceptible, 95% and 90% of the stems forming large tumors, 6.61 and 3.62 (mm X mm), respectively. Three varieties of R. canina, 'Pfaender', 'Superbe', and 'Broegs Stachellose', and a native one became infected but formed small tumors (0.5 mm X mm). In R. rugosa and R. canina ' Superbe' 40% of the infected shoots formed tumors during the first week after inoculation. Thus, these species have a low resistance to tumor formation, whereas R. virginiana formed no tumor during the first week after inoculation; 73% of the shoots produced tumors 3 weeks after inoculation. Therefore, R. virginiana is subject to infection but resistant to tumor formation
Bibliography:2000003448
H20
ISSN:0013-7626
1880-358X
DOI:10.2503/jjshs.69.171