Diseases

Bacterial Wilt of Solanum torvum

Solanum torvum Sw.

The primary bacterial disease affecting Solanum torvum is bacterial wilt caused by the pathogen Ralstonia solanacearum. The species possesses high natural resistance to this disease, making it a valuable rootstock for other solanaceous crops.

In the reference 6 varieties crop Turkey berry, where this is mentioned in the description.

The causative agent of the disease is the Ralstonia solanacearum species complex. Unlike susceptible species such as eggplant or tomato, Solanum torvum demonstrates pronounced resistance, preventing the development of clinical symptoms and plant death. Resistant forms are capable of limiting the colonization of the vascular system by bacteria, preventing systemic wilting even upon successful inoculation.

The resistance mechanism is based on the recognition of the type III effector RipAX2, which triggers the plant's immune response. The resistance of Solanum torvum is complex in nature and is often described as polygenic, determined by a set of quantitative trait loci (QTLs). In breeding, the species is used as a fundamental source of resistance, with germplasm evaluation conducted based on the disease index under exposure to various pathogen strains.

Withdrawn

Solanum torvum Sw. · Turkey berry

RAMIRO ARNEDO, S.A.

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