First Report of Hairy Root Disease, Caused by Rhizogenic Agrobacterium Biovar 1, in Hydroponic Bell Pepper Crop in South Korea

Back to the Roots: Agrobacterium -Specific Phages Show Potential to Disinfect Nutrient Solution from Hydroponic Greenhouses

“…Over the past decade, the impact of this disease on hydroponic cultivation systems has rapidly increased ( 14 , 15 ), and currently, 45% of the Flemish tomato greenhouses are infested with this pathogen ( 16 ), resulting in average yield losses of around 10% ( 14 ). Several other countries, including Japan, Canada, Russia, New Zealand, and South Korea have reported a similar progression of the disease ( 14 , 17 , 18 ).…”

“…This makes the efficacy of the current disease management practices questionable. As a consequence, the implementation of biological control agents, has been proposed as an alternative disease management strategy ( 18 , 20 , 21 ). In this regard, the use of bacteriophages to control bacterial plant diseases has received keen interest since the beginning of the 21st century, due to a better understanding of their biology combined with their ease of production, high specificity, and low environmental impact ( 22 ).…”

Evaluation of sequence-based tools to gather more insight into the positioning of rhizogenic agrobacteria within the Agrobacterium tumefaciens species complex

“…Another objective in this study was to shed more insight into the taxonomy of strains causing HRD. Interestingly, while HRD was originally associated with pathogenic R. rhizogenes (former biovar 2) strains, in recent studies it was observed that on (hydroponically grown) Cucurbitaceae and Solanaceae plants the causative agent is generally Agrobacterium biovar 1 harbouring a root-inducing plasmid [5, 6, 73, 107].…”

Draft Genome Sequences of 27 Rhizogenic Agrobacterium Biovar 1 Strains, the Causative Agent of Hairy Root Disease

“…In the past decade, hairy root disease (HRD), which is caused by rhizogenic Agrobacterium strains, has been increasingly reported in hydroponic greenhouses worldwide, pointing to the increasing importance and significant economic impact of this disease ( 1 , 2 ). The Agrobacterium genus is part of the Rhizobiaceae family, and its taxonomy has undergone many changes since it was first delineated in 1942 ( 3 ).…”