Abstract
The plants of the Zygophyllaceae family are often considered to be capable of symbiotic atmosphere nitrogen fixation, forming rhizobial nodules similar to those of Fabaceae and Urticaceae. In four species of Zygophyllaceae and the related Peganum harmala (hereafter called Z-plants), collected in Dzungarian deserts (Kazakhstan), we analyzed the prokaryotic component of the root microbiome and the 15N and 13C content in the leaves of these Z-plants compared with neighboring dicots belonging to other families (R-plants). Among all studied Zygophyllum fabago root samples only one was found to have the root nodule, however the microbiome of this sample was similar to that found in other Z. fabago root samples where nodulation was not observed. If compared to Z-plants, the R-plants had a significantly higher relative abundance of bacteria of genera Glycomyces, Massilia and Streptomyces, while the Z-plants had a higher relative abundance of the representatives of genera Actinomadura, Nocardia and Pseudonocardia. Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples. On average, the Z- and the R-plants did not differ in their δ13С and δ15N. Overall, the results do not allow us to consider the studied Zygophyllaceae plants as species with effective atmospheric nitrogen fixation due to rhizobial symbiosis – a characteristic feature of the most legumes.
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Claims 9
Claim · model-written summary
One Zygophyllum fabago root sample had a nodule.
- Taxon
- Zygophyllum fabago
Zygophyllum fabagoe0 - Organ / stage
- roote0
- Outcome
- root nodulee0
- Value
- only onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among all studied Zygophyllum fabago root samples only one was found to have the root nodule, however the microbiome of this sample was similar to that found in other Z. fabago root samples where nodulation was not observed.”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
Claim · model-written summary
The nodulated sample microbiome resembled nonnodulated root samples.
- Taxon
- Zygophyllum fabagoZygophyllum fabagoe0
- Organ / stage
- roote0
- Outcome
- microbiome of this sample was similare0
- Comparator
- other Z. fabago root samples where nodulation was not observede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among all studied Zygophyllum fabago root samples only one was found to have the root nodule, however the microbiome of this sample was similar to that found in other Z. fabago root samples where nodulation was not observed.”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
Claim · model-written summary
R plants had higher relative abundance of Glycomyces, Massilia and Streptomyces.
Verbatim
e0“If compared to Z-plants, the R-plants had a significantly higher relative abundance of bacteria of genera Glycomyces, Massilia and Streptomyces”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
Claim · model-written summary
Z plants had higher relative abundance of Actinomadura, Nocardia and Pseudonocardia.
- Taxon
- Z-plantse0
- Interactor
- Actinomadura
.jpg?width=60)
Actinomadurae0symbiont - Outcome
- relative abundance of the representatives of genera Actinomadura, Nocardia and Pseudonocardiae0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the Z-plants had a higher relative abundance of the representatives of genera Actinomadura, Nocardia and Pseudonocardia”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
Claim · model-written summary
Rhizobiaceae occurred in some R and Z plants.
- Taxon
- R and Z plantse0
- Interactor
- RhizobiaceaeRhizobiaceaee0symbiont
- Outcome
- Rhizobiaceae were presente0
Verbatim
e0“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
Claim · model-written summary
Rhizobiaceae were most abundant in soil samples.
- Taxon
- ZygophyllaceaeZygophyllaceaet0
- Interactor
- RhizobiaceaeRhizobiaceaee1symbiont
- Outcome
- most abundant in soil samplese0
Verbatim
e0“being most abundant in soil samples”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
t0“Zygophyllaceae”
Claim · model-written summary
Z and R plants had similar average δ13С.
Verbatim
e0“On average, the Z- and the R-plants did not differ in their δ13С and δ15N”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
Claim · model-written summary
Z and R plants had similar average δ15N.
Verbatim
e0“On average, the Z- and the R-plants did not differ in their δ13С and δ15N”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
Claim · model-written summary
The studied Zygophyllaceae do not show effective atmospheric nitrogen fixation due to rhizobial symbiosis.
- Taxon
- ZygophyllaceaeZygophyllaceaee0
- Outcome
- effective atmospheric nitrogen fixation due to rhizobial symbiosise0
Not reportedDirection
Verbatim
e0“the studied Zygophyllaceae plants as species with effective atmospheric nitrogen fixation due to rhizobial symbiosis”
e1“Unidentified representatives of the family Rhizobiaceae were present in some of R and Z plants, being most abundant in soil samples”
t0“Zygophyllaceae”