The data are derived from Alnus glutinosa plants grown in intact soil cores collected from beneath three co-occurring tree species. The data describe plant above and below ground biomass, coarse and fine root biomass, colonisation of roots by Frankia and ectomycorrhizal fungi, ecosystem carbon fluxes, capture of 13C from a pulse labelling process, 15N content of leaves, and soil nutrients. Full details about this nonGeographicDataset can be found at https://doi.org/10.5285/8816a55a-0e2e-4414-872f-3575170585dc

This dataset comprises phenotypic data of Rhizobium leguminosarum TRX19 clones evolved in the presence or absence of lytic phages. The clones assayed were isolated from populations of R. leguminosarum which had been evolved in lab media for twenty 73hr 'transfers'. Clones were assessed for their resistance to the ancestral phages (reduction in bacterial growth), their ability to form symbioses (plant biomass, nitrogen content and nodule counts) and traits associated with colonisation (biofilm production, swimming and swarming motility and gelatinase activity). This experiment tests the hypothesis that evolution for phage resistance will drive the loss of symbiosis functions in rhizobia due to antagonistic pleiotropy.

Microscopy data on the percentages of liverwort stem length colonised by (i) stained hyphal coils, (ii) stained septate hyphae and (iii) dark septate hyphae, and (iv) percentages of rhizoids colonised by hyphae, in 16 leafy liverwort species sampled from sub-Antarctic South Georgia. Specimens were collected in 2011 and 2016 from 12 sites on the Thatcher Peninsula, South Georgia. The specimens have been deposited in the British Antarctic Survey herbarium. This project was funded by NERC under the British Antarctic Survey Long Term Monitoring programme.

Microscopy data on the percentages of stem length colonised by (i) hyphal coils, (ii) stained septate hyphae and (iii) dark septate hyphae, and (iv) percentages of rhizoids colonised by hyphae, in 13 leafy liverwort species and two simple thalloid II liverwort species sampled from High Arctic Spitsbergen.