Abstract
This paper is focused on the first study of microbiota of a moderate climate orchid from Northern hemisphere—Moorland Spotted Orchid Dactylorhiza maculata (L.) Soó growing in its natural habitat. There have been obtained detailed data concerning bacterial communities from rhizosphere and inner tissues of young and old tubers. It was done using the biomarker analysis method where the markers were detected by gas chromatography—mass-spectrometry. It is shown that the number of bacterial genera and the bacteria amount (105 - 108 CFU per gram of dry weight) in D. maculata microbial complexes decreases from rhizosphere to old tuber to young. At the same time all three bacterial cenoses closely resemble each other in biodiversity. Their constant members are gg. Hyphomicrobium, Methylococcus, Nitrobacter, Pseudomonas and Sphingomonas (Proteobacteria), Bacillus and Clostridium (Firmicutes), Rhodococcus and Streptomyces (Actinobacteria). There were found differences peculiar to the taxonomic structure of each microbial complex. The rhizosphere is dominated by Actinobacteria while in inner tissues Proteobacteria are prevalent. The bacteria of gg. Ochrobactrum, Xanthomonas, Butyrivibrio, Corynebacterium, Mycobacterium, Propionibacterium, Sphingobacterium and specific iron reducers were shown to belong to rhizosphere community. Genera of Agrobacterium and Bifidobacterium were found only in the endophytic microbiota of the young tuber while g. Aeromonas is
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Claims 8
Claim · model-written summary
Bacterial genera and abundance declined from rhizosphere to old and young tubers.
- Taxon
- D. maculata
Dactylorhiza maculatae0 - Organ / stage
- rhizosphere to old tuber to younge0
- Outcome
- number of bacterial genera and the bacteria amounte0
- Direction
- decreasese0
- Value
- 105 - 108 CFU per gram of dry weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the number of bacterial genera and the bacteria amount (105 - 108 CFU per gram of dry weight) in D. maculata microbial complexes decreases from rhizosphere to old tuber to young.”
Claim · model-written summary
The three bacterial communities closely resembled one another in biodiversity.
- Taxon
- Dactylorhiza maculataDactylorhiza maculatat0
- Outcome
- biodiversitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all three bacterial cenoses closely resemble each other in biodiversity.”
t0“Dactylorhiza maculata”
Claim · model-written summary
Several bacterial genera were shared constant community members.
- Taxon
- Dactylorhiza maculataDactylorhiza maculatat0
- Interactor
- Hyphomicrobium
Hyphomicrobiume0symbiont - Outcome
- constant memberse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Their constant members are gg. Hyphomicrobium, Methylococcus, Nitrobacter, Pseudomonas and Sphingomonas (Proteobacteria), Bacillus and Clostridium (Firmicutes), Rhodococcus and Streptomyces (Actinobacteria).”
t0“Dactylorhiza maculata”
Claim · model-written summary
Actinobacteria dominated the orchid rhizosphere.
- Taxon
- Dactylorhiza maculataDactylorhiza maculatat0
- Interactor
- ActinobacteriaActinomycetotae0symbiont
- Outcome
- rhizosphere is dominatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rhizosphere is dominated by Actinobacteria”
t0“Dactylorhiza maculata”
Claim · model-written summary
Proteobacteria prevailed in inner orchid tissues.
- Taxon
- Dactylorhiza maculataDactylorhiza maculatat0
- Organ / stage
- inner tissuese0
- Interactor
- ProteobacteriaPseudomonadotae0symbiont
- Outcome
- prevalente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in inner tissues Proteobacteria are prevalent.”
t0“Dactylorhiza maculata”
Claim · model-written summary
Eight named bacterial genera and iron reducers belonged to the rhizosphere community.
- Taxon
- Dactylorhiza maculataDactylorhiza maculatat0
- Interactor
- OchrobactrumOchrobactrume0symbiont
- Outcome
- belong to rhizosphere communitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bacteria of gg. Ochrobactrum, Xanthomonas, Butyrivibrio, Corynebacterium, Mycobacterium, Propionibacterium, Sphingobacterium and specific iron reducers were shown to belong to rhizosphere community.”
t0“Dactylorhiza maculata”
Claim · model-written summary
Agrobacterium occurred only in young tuber endophytic microbiota.
- Taxon
- Dactylorhiza maculataDactylorhiza maculatat0
- Organ / stage
- young tubere0
- Interactor
- Agrobacterium
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Agrobacteriume0symbiont - Outcome
- found only in the endophytic microbiotae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Genera of Agrobacterium and Bifidobacterium were found only in the endophytic microbiota of the young tuber”
t0“Dactylorhiza maculata”
Claim · model-written summary
Bifidobacterium occurred only in young tuber endophytic microbiota.
- Taxon
- Dactylorhiza maculataDactylorhiza maculatat0
- Organ / stage
- young tubere0
- Interactor
- Bifidobacterium
Bifidobacteriume0symbiont - Outcome
- found only in the endophytic microbiotae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genera of Agrobacterium and Bifidobacterium were found only in the endophytic microbiota of the young tuber”
t0“Dactylorhiza maculata”