Plant Pathology (2022) 71, 1619-1632

Jan van der Wolf, Pieter Kastelein, Leo Poleij, Marjon Krijger, Odette Mendes, Nasim Sedighian, Caitilyn Allen, Peter Bonants and Viola Kurm (2022)
Factors influencing Ralstonia pseudosolanacearum infection incidence and disease development in rose plants
Plant Pathology 71 (7), 1619-1632
Abstract: Glasshouse experiments were conducted to study infection and disease development in rockwool-grown rose plants inoculated with Ralstonia pseudosolanacearum. A R. pseudosolanacearum strain isolated from rose plants was more aggressive than strains from anthurium or curcuma. The three rose cultivars tested, Avalanche, Red Naomi, and Armando, differed in susceptibility. At 20°C, the rose strain caused hardly any symptoms over a 6-week period, whereas at 28°C typical wilt symptoms were observed within 2 weeks after stem inoculation of Armando, the most susceptible cultivar. Inoculating roots with the rose strain resulted only in weak atypical symptoms. Nevertheless, inoculating roots of cv. Armando at a relatively low inoculum dose of 10⁴ cfu/ml led to high densities in the base of stems in one out of two experiments. R. pseudosolanacearum occasionally spread from stem inoculated plants with symptoms in rockwool slabs. This limited spread resulted in a low infection incidence, and only of plants directly adjacent to the plants with symptoms.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Jan M. van der Wolf, Pieter Kastelein, Caitilyn Allen, Peter J. M. Bonants

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ralstonia pseudosolanacearum	Rosa (crop)	Netherlands