ORIGINAL ARTICLE
Are formae speciales pathogens really host specific? A broadened host specificity in Fusarium oxysporum f.sp. radicis-cucumerinum
Daniel Mawuena Afordoanyi 1,2, A-B,D,F
,   Roderic Gilles Diabankana 3, B,E-F
,   Yaw Abayie Akosah 4, C-F  
,   Shamil Zavdatovich Validov 5, A,D-F
 
More details
Hide details
1
Department of Agrobiological Research, Tatar Scientific Research Institute of Agriculture, FRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, Russian Federation, Russia
2
Department of Animal Husbandry and Veterinary Medicine, Tatar Scientific Research Institute of Agrochemistry and Soil Science, FRC Kazan Scientific Center, Russian Academy of Sciences, Russia
3
Agro-ecological Centre for research, Kazan State Agrarian University, Russia
4
Department of Microbiology, Kazan Federal University, Institute of Fundamental Medicine and Biology, Russia
5
Department of, Tatar Scientific Research Institute of Agrochemistry and Soil Science, FRC Kazan Scientific Center, Russian Academy of Sciences, Russia
A - Research concept and design; B - Collection and/or assembly of data; C - Data analysis and interpretation; D - Writing the article; E - Critical revision of the article; F - Final approval of article
CORRESPONDING AUTHOR
Yaw Abayie Akosah   

Department of Microbiology, Kazan Federal University, Institute of Fundamental Medicine and Biology, 18 kremlevskaya, 420008, Kazan, Russia
Submission date: 2021-08-11
Acceptance date: 2021-11-17
Online publication date: 2021-12-13
 
 
KEYWORDS
TOPICS
ABSTRACT
Phytopathogenic strains of Fusarium oxysporum demonstrate clear host specificity, which seems to be a constant characteristic and a reliable base for the forma specialis system of these pathogens. Here we report a change in the host specificity of Fusarium oxysporum f.sp. radicis-cucumerinum strain V03-2g (Forc V03-2g) – a causative agent of cucumber root-rot, which clonal derivates acquired the ability to infect tomato plants. Since the clonal derivates of Forc V03-2g with changed host specificity maintained their ability to parasitize on cucumber plants, the changes that occurred can be classified as broadening of host specificity. To our knowledge, this is the first observation of pathogenicity changes in formae speciales of F. oxysporum. The clonal derivates obtained can be used to trace genetic determinants of the host specificity of phytopathogenic strains of F. oxysporum.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
eISSN:1899-007X
ISSN:1427-4345