Metadata for Beggiatoa sp. 35Flor phosphate starvation experiment with subsequent phosphate reintroduction. 
The experiment was funded by Deutsche Forschungsgemeinschaft (DFG) under grant number GRK 2000. This is Baltic TRANSCOAST publication.

Description of the envir_data_Beggiatoa_polyP metadata file:
NA - not available
bdl - below detection limit

raw_name: unique identifier of the sample
sample_no: number of the sample order (how it was labelled during experiment procedure)
replic: iteration of the experiment 
sample_code: 
	blank - agar without bacterial mat
	t0 - right before adding PO4
	t1 - immediately after adding PO4 (collected with rhizon, therefore approximate to 10 min incub. time)
	t2 - 30 min after
	t3 - 2 h after
	t4 - 24h after
	tx - performed separately on the sterile agar, PO4 added the same way as experiment and PO4 measured to get exact initial PO4 concentration
collection_date: the date of the sample collection
incub_time: incubation time in [hours]; NA for blank and t0 (0, 0.167, 0.5, 2, 24)
phosphat: PO4 conc., [μmol/L], ascorbic acid colorimetric method
total_p: P conc. [μmol/L], ICP-OES
diss_p: total dissolved P conc. [μmol/L] , ICP-OES
protein: protein content [μg/mL], Bradford colorimetric method
polyp_filament: number of filaments having at least some PolyP based on DAPI-stained microscopic observations
empty_filament: number of filaments without any PolyP based on DAPI-stained microscopic observations


Description of the survival_Beggiatoa file:

batch: a number of the cultivation attempt performed with the same media preparation step
generation: the number of phosphate-starved generation cultivated without phosphate addition
total: number of tubes inoculated within the batch
with_stable_mat: number of tubes out of total with cler defined stable mat after 2-3 days of inoculation
surviva: the ratio of with_stable_mat to total number of tubes
