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Table 1 Detection of bacteria isolates in 13 commercial potting media products originating from seven countries

From: Analysis of bacterial communities associated with potting media

Product no.a

Origin

Composition

Isolate codeb

Bacterial species

GenBank acc. no.c

1

Germany

White peat (particle size: 0–7 mm), with 95–99 % organic matter

SQU P001

B. pumilus

KU220846

SQU P002

L. lichenia

KU220847

2

Germany

30 % white peat (particle size: 0–7 mm) and 70 % frozen black peat; fine structure

SQU P003

B. phenazinium

KU220848

SQU P004, 5

Burkholderia sp.

KU220849

SQU P006

K. flava

KU220851

SQU P007

B. vallismortis

KU220852

3

Germany

High bog peat in fine structure (particle size: 0–7 mm)

SQU P008

A. livingstonensis

KU220853

4

Germany

20 % green compost, 40 % white peat (particle size: 0–25 mm) and 40 % frozen black peat; medium structure

SQU P009

P. thivervalensis

KU220854

5

Denmark

White and dark sphagnum peat, fine structure

SQU P010, 11

B. vallismortis

KU220855

6

Estonia

Black peat and white peat (particle size: 0–6 mm); at least 92 % organic matter

SQU P012

Burkholderia sp.

KU220857

7

Estonia

Black and white milled peat (particle size 6–20 mm); at least 95 % organic matter

SQU P013

Burkholderia sp.

KU220858

SQU P014

R. pickettii

KU220859

8

Estonia

Peat moss (particle size: 1–10 mm); at least 95 % organic matter

SQU P015

R. pickettii

KU220860

9

Latvia

Sphagnumfuscum peat (particle size: 0–10 mm)

SQU P016

C. gallinarum

KU220861

   

SQU P017

Burkholderia sp.

KU220862

10

Ireland

Sphagnum moss peat (particle size: 0–14 mm)

SQU P018

Rhodanobacter sp.

KU220863

11

Ireland

Sphagnum moss peat (particle size: 0–14 mm)

SQU P019

S. warneri

KU220864

12

Finland

White and dark sphagnum peat, fine structure

SQU P020

R. spathiphylli

KU220865

13

Norway

Container mix, 10 % vermiculate and 15 % perlite coarse

 
  1. aManufacturers of the products are kept anonymous
  2. bThe sign (–) indicates that no bacteria were isolated from the product
  3. cThe 16S rRNA gene sequences were deposited in GenBank for the isolated bacteria