Rhizobium radiobacter
The Rhizobium radiobacter bacterium causes irregular woody masses known as crown galls to form on the roots, trunks or branches of various species of tree including the Horse-chestnut.
It also causes galls on many dicotyledonous herbaceous species, entering the plant via a wound, often at the crown of the plant - i.e. the junction of root and stem at ground level.
On any suitable host, including crop plants.
All year round.
Status in Britain not known.
Status in Leicestershire and Rutland not known.
Ron.stevens
Station Road Broughton Astley
31 March 2016
Bacterial gall on Horse-chestnut
Craig Mabbett
Lutterworth Road Dunton Bassett
06 April 2016
Bacterial gall
Leicestershire & Rutland Map
Enter a town or village to see local records
MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Species profile
- Species group:
- Algae, Bacteria, Virus
- Kingdom:
- Bacteria
- Order:
- Rhizobiales
- Family:
- Rhizobiaceae
- Records on NatureSpot:
- 5
- First record:
- 31/03/2016 (Stevens, Ron)
- Last record:
- 23/10/2023 (lemmon, roy)
Total records by month
% of records within its species group
10km squares with records
The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.
In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.