Search claims · PlantClaims

Mechanismobservedreview summarybasis n/a

Claim · model-written summary

Expression of Rhizobium nodulation genes induces nodulation factors.

Taxon: legumet0
Interactor: RhizobiumRhizobiume0symbiont
Gene: nodulation genes of Rhizobiume0
Outcome: Nodulation factorse0

Verbatim

e0
“Nodulation factors are induced when nodulation genes of Rhizobium are expressed.”
✓ located verbatim in the source · abstract, characters 367–447

t0
“Rhizobium-legume”
✓ located verbatim in the source · title, characters 53–69

Title

Molecular Mechanic of Symbiotic Nitrogen Fixation of Rhizobium-legume

Huang Jia Journal of Shihezi University 2002

Other claims from this paper (4)

Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

AhLUX1 modulates peanut nodulation by regulating the expression of key nodulation genes

Taxon: peanutArachis hypogaeat0
Gene: AhLUX1e1
Outcome: expression of key nodulation genese1

Verbatim

t0
“peanut nodulation”
✓ located verbatim in the source · title, characters 69–86

e1
“The results suggest that AhLUX1 modulates peanut nodulation by regulating the expression of key nodulation genes”
✓ located verbatim in the source · abstract, characters 1268–1380

Title

Positively regulating role of the key evening complex gene AhLUX1 in peanut nodulation

Yi-Chu Lu; Zhen-Ying Li; Chun-Hai Mai; et al. ACTA AGRONOMICA SINICA 2026. doi:10.3724/sp.j.1006.2026.55069

Other claims from this paper (7)

Intervention effect AhLUX1 is strongly induced by rhizobial infection in peanut
Observation AhLUX1 is predominantly expressed in peanut root tips, lateral root primordia, developing nodules and mature nodules
Observation AhLUX1 is localized in the nucleus of peanut cells
Intervention effect Overexpression of AhLUX1 significantly increases nodule number in peanut
Intervention effect Silencing of AhLUX1 by RNAi markedly reduces peanut nodulation
Intervention effect Knockout of AhLUX1 by CRISPR markedly reduces peanut nodulation
Recommendation AhLUX1 provides a genetic resource for breeding high-efficiency peanut varieties through manipulation of the light-signaling pathway

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

GmBEHL1 integrates brassinosteroid and nodulation signaling to regulate symbiotic nodulation.

Taxon: soybeanGlycine maxt0
Gene: GmBEHL1e0
Outcome: symbiotic nodulatione0
Qualifier: integrates BR signaling with nodulation signaling pathwayse0

Verbatim

e0
“GmBEHL1 to be a potent gene that integrates BR signaling with nodulation signaling pathways to regulate symbiotic nodulation.”
✓ located verbatim in the source · abstract, characters 1238–1363

t0
“soybean”
✓ located verbatim in the source · title, characters 58–65

Title

GmBEHL1, a BES1/BZR1 family protein, negatively regulates soybean nodulation

Qiqi Yan; Lixiang Wang; Xia Li Scientific Reports 2018. doi:10.1038/s41598-018-25910-x

Other claims from this paper (8)

Observation GmBEHL1 interacts with Nodule Number Control 1.
Observation GmBEHL1 expression is high at emerging nodule bases and expands during maturation.
Intervention effect GmBEHL1 overexpression inhibits soybean nodule number.
Intervention effect GmBEHL1 downregulation enhances soybean nodule number.
Intervention effect Altered GmBEHL1 expression represses brassinosteroid biosynthesis gene expression.
Observation GmBEHL1 interacts with GmBIN2 in soybean.
Intervention effect Brassinosteroid treatment reduces soybean nodule number.
Intervention effect Brassinosteroid treatment increases soybean nodule size.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

HN308SRN29 lost nodulation ability in plant nodulation tests.

Taxon: Mesorhizobium huakuiiMesorhizobium huakuiit0
Material: HN308SRN29e7
Outcome: lost nodulation abilitye7

Verbatim

e7
“Results from plant nodulation tests showed that HN308SRN29 lost nodulation ability”
✓ located verbatim in the source · abstract, characters 1170–1252

t0
“in Mesorhizobium huakuii HN3015”
✓ located verbatim in the source · title, characters 63–94

Title

Incompatibility Behavior of a Non-symbiotic Plasmid pMhHN3015a in Mesorhizobium huakuii HN3015

Hu Guo Microbiology 2009

Other claims from this paper (9)

Observation pMhHN3015a and pMhHN308b are incompatible plasmids in Mesorhizobium huakuii.
Observation In the transconjugant HN308SRN29, plasmid pMhHN308b was cured.
Observation A labeled plasmid-cured derivative of HN308SRN29 could not be obtained.
Observation In transconjugant 7653R-1SRN29, pMhHN3015a could coexist with pMh7653Ra.
Observation Mutants 7653R-1SRN29D-A and 7653R-1SRN29D-B lost plasmid pMhHN3015a.
Observation Mutant 7653R-1SRN29D-B carries an additional plasmid, p76H4.
Observation Nodulation by transconjugant 7653R-1SRN29 was enhanced.
Observation Mutant 7653R-1SRN29D-A could only form null nodules.
Observation Mutant 7653R-1SRN29D-B lost its nodulation ability.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Fungal priming of Bradyrhizobial nodulation signaling led to early nodulation of peanut.

Taxon: peanutArachis hypogaeae0
Interactor: BradyrhizobiumBradyrhizobiume1symbiont
Second interactor: Phomopsis liquidambarisDiaporthe liquidambarise1symbiont
Outcome: early nodulatione2
Qualifier: primed Bradyrhizobial nodulation signalinge2

Verbatim

e0
“leading to early nodulation of peanut (Arachis hypogaea)”
✓ located verbatim in the source · abstract, characters 622–678

e1
“Bradyrhizobium and a facultatively biotrophic fungus, Phomopsis liquidambaris”
✓ located verbatim in the source · abstract, characters 378–455

e2
“primed Bradyrhizobial nodulation signaling, enhancing Bradyrhizobial responses to root exudates and leading to early nodulation of peanut (Arachis hypogaea)”
✓ located verbatim in the source · abstract, characters 522–678

Title

Priming of rhizobial nodulation signaling in the mycosphere accelerates nodulation of legume hosts

Wei Zhang; Xue Luo; Yan‐Zhen Mei; et al. New Phytologist 2022. doi:10.1111/nph.18192

Other claims from this paper (5)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

High nodulation selection suffered less reduction in nodulation under salinity.

Taxon: chickpeaCicer arietinumt0
Material: high-nodulation selectione0
Outcome: Nodulatione0
Direction: lesser extente0

Verbatim

e0
“Nodulation was reduced in all genotypes at salinities above 3 dS m(-1) but to a lesser extent in the high-nodulation selection”
✓ located verbatim in the source · abstract, characters 756–882

t0
“Chickpea (Cicer arietinum)”
✓ located verbatim in the source · title, characters 78–104

Title

The Effects of Salinity and Sodicity upon Nodulation and Nitrogen Fixation in Chickpea (Cicer arietinum)

D. L. N. RAO Annals of Botany 2002. doi:10.1093/aob/mcf097

Other claims from this paper (10)

Observation Field screening identified chickpea genotypes with high nodulation capacity under stress.
Observation pH 8.9 was the upper critical limit for most genotypes.
Association High nodulation genotypes outperformed others at pH 9.0-9.2.
Observation The shoot growth salinity threshold was ECe 3 dS m(-1) for most genotypes.
Observation The high nodulation selection had a shoot growth salinity threshold of ECe 6.
Intervention effect Salinity above 3 dS m(-1) reduced nodulation in all genotypes.
Association The high nodulation selection was superior under both non-saline and stress conditions.
Association Nitrogen fixation in the high nodulation selection was more salinity tolerant than in other genotypes.
Association Salt tolerant genotypes had better nodulation than sensitive genotypes.
Association Salt tolerant genotypes had higher symbiotic nitrogen fixation rates than sensitive genotypes.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Cultivar Essex gave effective nodulation.

Taxon: SoybeanGlycine maxt0
Material: Essexe0
Outcome: effective nodulatione0

Verbatim

e0
“Cultivar Essex gave effective nodulation.”
✓ located verbatim in the source · abstract, characters 632–673

t0
“Soybean”
✓ located verbatim in the source · title, characters 48–55

Title

Plant Genetic Study of Restricted Nodulation in Soybean

Daqi Qian; F. L. Allen; G. Stacey; et al. Crop Science 1996. doi:10.2135/cropsci1996.0011183x003600020005x

Other claims from this paper (6)

Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

A model proposes a potential order of pea nodulation genes in nodulation and mycorrhizal signalling.

Taxon: peaLathyrus oleraceuse0
Outcome: potential order of pea nodulation genese0
Qualifier: in nodulation and mycorrhizal signalinge0

Verbatim

e0
“we propose a model for the potential order of pea nodulation genes in nodulation and mycorrhizal signaling”
✓ located verbatim in the source · abstract, characters 1608–1714

Title

Dissection of nodulation signaling using pea mutants defective for calcium spiking induced by Nod factors and chitin oligomers

Simon A. Walker; Virginie Viprey; J. Allan Downie Proceedings of the National Academy of Sciences 2000. doi:10.1073/pnas.230440097

Other claims from this paper (11)

Observation Nod-factor addition triggered a fluorescence increase, then spikes at about one spike per minute in pea root hairs.
Observation Nod-factor-induced spikes corresponded to an increase in calcium of approximately 200 nM.
Observation Calcium spikes were localized around the nuclear region.
Intervention effect Mutations at sym8, sym10 and sym19 abolished Nod-factor-induced calcium spiking in pea.
Observation Peas carrying alleles of sym2(A), sym7, sym9 and sym30 showed a normal response to Nod factors.
Intervention effect Chitin oligomers of four or five GlcNAc residues induced calcium spiking in pea.
Intervention effect Chitin-induced spiking had a lower period between spikes than Nod-factor spiking.
Intervention effect Chitin-induced response was less sustained than Nod-factor response.
Intervention effect Chitin-induced response lacked the rapid intracellular calcium increase seen with Nod factors.
Observation Chitin-oligomer-induced calcium spiking did not occur in sym8, sym10 and sym19 mutants.
Mechanism Chitin-oligomer-induced calcium spiking is probably related to nodulation signalling.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Trifluralin reduced nodulation of soybeans.

Taxon: soybeansGlycine maxe0
Treatment: Trifluraline0
Outcome: nodulatione0
Direction: reducede0

Not reportedComparator

Verbatim

e0
“Trifluralin reduced nodulation of soybeans”
✓ located verbatim in the source · abstract, characters 1133–1175

Title

Effects of Trifluralin on Growth, Nodulation, and Anatomy of Soybeans

Cyril A. Kust; B. Esther Struckmeyer Weed Science 1971. doi:10.1017/s0043174500048530

Other claims from this paper (11)

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Sulfate decoration of LPU83 nodulation factors is unnecessary for alfalfa nodulation.

Taxon: alfalfaMedicago sativae0
Interactor: LPU83e0symbiont
Outcome: not necessary for alfalfa nodulatione0

Verbatim

e0
“the sulfate decoration of NFs in LPU83 is not necessary for alfalfa nodulation”
✓ located verbatim in the source · abstract, characters 1662–1740

Title

The Nodulation of Alfalfa by the Acid-TolerantRhizobiumsp. Strain LPU83 Does Not Require Sulfated Forms of Lipochitooligosaccharide Nodulation Signals

Gonzalo Torres Tejerizo; María Florencia Del Papa; M. Eugenia Soria-Diaz; et al. Journal of Bacteriology 2010. doi:10.1128/jb.01009-10

Other claims from this paper (9)

“nodulation”

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