Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

miR319a overexpression reduced poplar lateral root number and density.

Taxon: poplarPopuluse0
Treatment: overexpression of miR319ae0
Gene: miR319ae0
Outcome: number and density of lateral rootse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“overexpression of miR319a led to a decrease in the number and density of lateral roots in poplar”
✓ located verbatim in the source · abstract, characters 243–339

Title

MicroRNA319-TCP19-IAA3.2 Module Mediates Lateral Root Growth in Populus tomentosa

Jianqiu Li; Hanyu Chen; Zhengjie Zhao; et al. Plants 2025. doi:10.3390/plants14162494

Other claims from this paper (17)

Intervention effect miR319a repression promoted lateral root development.
Observation IAA3.1 and IAA3.2 were upregulated in miR319a-OE plants.
Observation IAA3.1 and IAA3.2 were downregulated in miR319a-STTM plants.
Intervention effect NAA increased wild-type lateral root number by 30%.
Intervention effect NAA increased wild-type lateral root density by 44%.
Intervention effect NAA increased lateral root number in miR319a-OE plants by 23% and 48%.
Intervention effect NAA increased lateral root density in miR319a-OE plants by 10% and 26%.
Intervention effect NPA decreased wild-type lateral root number by 70%.
Intervention effect NPA decreased lateral root number in overexpression plants by 85–87%.
Intervention effect NPA decreased lateral root number in STTM plants by about 83%.
Mechanism miR319a significantly inhibited IAA3.1 and IAA3.2 expression.
Observation Auxin signaling was stronger in epidermal and elongation-zone cells of miR319a-OE lateral roots.
Observation Auxin signaling was more pronounced in root tip meristematic cells of WT and miR319a-STTM roots.
Observation IAA3.2 was identified as a downstream target of TCP19.
Observation TCP19 directly bound the IAA3.2 promoter.
Mechanism miR319a targeted and cleaved TCP19.
Mechanism TCP19 directly and negatively regulated IAA3.2 expression and lateral root development.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors linked the density induced ratio decrease to downregulation of three carbon metabolism enzymes.

Outcome: downregulation of C 4 carbon metabolism enzymese0
Qualifier: C 4 carbon metabolism enzymese0

Not reportedTaxon

Verbatim

e0
“which resulted in downregulation of C 4 carbon metabolism enzymes (phosphoenolpyruvate carboxykinase, phosphoenolpyruvate carboxylase, and pyruvate orthophosphate dikinase).”
✓ located verbatim in the source · abstract, characters 1189–1362

Title

Corn Response to Competition: Growth Alteration vs. Yield Limiting Factors

S. A. Clay; D. E. Clay; D. P. Horvath; et al. Agronomy Journal 2009. doi:10.2134/agronj2008.0213x

Other claims from this paper (12)

Intervention effect Sixty percent shade increased corn chlorophyll relative to full sun.
Intervention effect Sixty percent shade reduced corn leaf area and height relative to full sun.
Intervention effect Double density plants had 11% less chlorophyll than single density plants.
Intervention effect Double density plants had leaf area and height similar to shaded plants.
Intervention effect Double density plants were smaller at harvest.
Intervention effect Double density increased water and nitrogen use efficiency.
Intervention effect Double density increased yield per hectare by 11%.
Intervention effect Sixty percent shade reduced yield per plant by 50%.
Intervention effect Double density reduced yield per plant by 50%.
Mechanism The authors attributed shaded plant yield reduction to light stress.
Intervention effect High density was associated with a 20% decrease in red to near infrared ratio.
Observation High density and shade had similar per plant yield impact but different compensation mechanisms.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Mutation of both ASF1 genes decreased chromatin density.

Taxon: ArabidopsisArabidopsise0
Treatment: Simultaneous mutation of both Arabidopsis ASF1 genese0
Gene: ASF1e0
Outcome: chromatin densitye0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Simultaneous mutation of both Arabidopsis ASF1 genes caused a decrease in chromatin density and ectopic H3.1 occupancy at loci typically enriched with H3.3.”
✓ located verbatim in the source · abstract, characters 526–682

Title

Histone chaperone ASF1 mediates H3.3-H4 deposition in Arabidopsis

Zhenhui Zhong; Yafei Wang; Ming Wang; et al. Nature Communications 2022. doi:10.1038/s41467-022-34648-0

Other claims from this paper (9)

Association Arabidopsis ASF1 proteins preferred the HIRA complex.
Intervention effect Mutation of both ASF1 genes caused ectopic H3.1 occupancy at H3.3 enriched loci.
Association ASF1 proteins strongly preferred HIRA over CAF-1.
Observation asf1 mutants had increased spurious Pol II initiation.
Observation asf1 mutants showed defective maintenance of gene body CG DNA methylation.
Observation asf1 mutants showed defective histone modification distribution.
Intervention effect Ectopic ASF1 targeting caused excessive histone deposition.
Intervention effect Ectopic ASF1 targeting reduced chromatin accessibility.
Intervention effect Ectopic ASF1 targeting caused gene silencing.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Decreasing plant density changed the photosynthetic efficiency of apple leaves and the expression of photosynthesis-related genes.

Taxon: appleMalus domesticat0
Treatment: decrease of plant densitye0
Outcome: photosynthetic efficiency of leaves and the expression of photosynthesis-related genese0
Direction: changede0

Not reportedComparator

Verbatim

e0
“the decrease of plant density changed the photosynthetic efficiency of leaves and the expression of photosynthesis-related genes”
✓ located verbatim in the source · abstract, characters 1685–1813

t0
“apple”
✓ located verbatim in the source · title, characters 65–70

Title

Transcriptional and physiological analyses of reduced density in apple provide insight into the regulation involved in photosynthesis

Junqiang Niu; Ming Ma; Xiaoning Yin; et al. PLoS ONE 2020. doi:10.1371/journal.pone.0239737

Other claims from this paper (12)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The gem mutant had reduced root hair density and length.

Material: gem mutante0
Outcome: root hair density and lengthe0
Direction: decreasee0

Not reportedTaxon

Verbatim

e0
“By contrast, gem mutant plants displayed a decrease in root hair density and length with reduced expression of RHD6, AXR2, AUX1, AXR1, ETR1, CTR1, and EIN2.”
✓ located verbatim in the source · abstract, characters 1106–1262

Title

The Density and Length of Root Hairs Are Enhanced in Response to Cadmium and Arsenic by Modulating Gene Expressions Involved in Fate Determination and Morphogenesis of Root Hairs in Arabidopsis

Ramin Bahmani; Dong G. Kim; Jin A. Kim; et al. Frontiers in Plant Science 2016. doi:10.3389/fpls.2016.01763

Other claims from this paper (9)

Intervention effect Cadmium and arsenic increased root hair density and length.
Observation Cadmium and arsenic downregulated TTG1 and GL2.
Observation Cadmium and arsenic upregulated GEM.
Observation Cadmium and arsenic increased root hair initiation gene transcripts.
Observation Cadmium and arsenic increased root hair elongation gene transcripts except CTR1.
Observation DR5 expression was higher in the root tip.
Intervention effect TTG1 knockdown increased root hair density.
Intervention effect TTG1 knockdown decreased root hair length.
Observation The gem mutant had reduced expression of seven root hair genes.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

SDD1 overexpression decreased stomatal density twofold to threefold.

Taxon: ArabidopsisArabidopsist0
Treatment: SDD1 overexpressione0
Gene: SDD1e0
Outcome: stomatal densitye0
Direction: decreasee0
Value: twofold to threefolde0
Comparator: wild typee0

Verbatim

e0
“SDD1 overexpression in the wild type leads to a phenotype opposite to that caused by the sdd1-1 mutation, with a twofold to threefold decrease in stomatal density and the formation of arrested stomata”
✓ located verbatim in the source · abstract, characters 652–852

t0
“Arabidopsis Stomatal Development”
✓ located verbatim in the source · title, characters 80–112

Title

The Subtilisin-Like Serine Protease SDD1 Mediates Cell-to-Cell Signaling during Arabidopsis Stomatal Development

Uritza von Groll; Dieter Berger; Thomas Altmann The Plant Cell 2002. doi:10.1105/tpc.001016

Other claims from this paper (9)

Intervention effect The sdd1-1 mutation caused stomatal clustering.
Intervention effect The sdd1-1 mutation increased stomatal density twofold to fourfold.
Observation SDD1 expression was strong in stomatal precursor cells.
Mechanism Feedback negatively controlled the SDD1 promoter.
Observation The SDD1 protein was exported to the apoplast and probably associated with the plasma membrane.
Intervention effect SDD1 overexpression formed arrested stomata.
Observation SDD1 overexpression was effective in flp but tmm acted epistatically.
Mechanism The authors propose that SDD1 generates an extracellular signal from stomatal precursor cells.
Mechanism SDD1 function depended on TMM activity.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

MsDREB6.2 overexpression decreased stomatal aperture and density.

Taxon: appleMalus domesticat0
Treatment: Overexpression of Ms DREB 6.2e0
Outcome: stomatal aperture and densitye0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Overexpression of Ms DREB 6.2 resulted in a decrease in stomatal aperture and density”
✓ located verbatim in the source · abstract, characters 932–1017

t0
“Overexpression of MsDREB6.2 results in cytokinin‐deficient developmental phenotypes and enhances drought tolerance in transgenic apple plants”
✓ located verbatim in the source · title, characters 0–141

Title

Overexpression of MsDREB6.2 results in cytokinin‐deficient developmental phenotypes and enhances drought tolerance in transgenic apple plants

Xiong Liao; Xiao Guo; Qi Wang; et al. The Plant Journal 2016. doi:10.1111/tpj.13401

Other claims from this paper (8)

Intervention effect MsDREB6.2 overexpression increased MdCKX4a expression.
Intervention effect MsDREB6.2 overexpression significantly reduced endogenous cytokinin levels.
Intervention effect MsDREB6.2 overexpression decreased shoot to root ratio.
Intervention effect MsDREB6.2 overexpression increased root hydraulic conductance.
Intervention effect MsDREB6.2 overexpression enhanced drought tolerance.
Intervention effect Changing MsDREB6.2 expression altered expression of two aquaporin genes.
Mechanism The authors attribute drought tolerance partly to stomatal opening, root growth and AQP expression.
Recommendation The authors suggest use of the results in breeding drought resistant apple rootstocks.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Down-regulation of stomatal development genes correlated with lower stomatal density under boron deficiency.

Taxon: Pisum sativumLathyrus oleraceust0
Gene: MUTE and TOO MANY MOUTHSe0
Outcome: stomatal densitye0
Direction: decreasee0

Verbatim

e0
“the down-regulation of stomatal development genes in guard cells, including homologs of MUTE and TOO MANY MOUTHS, correlated with a decrease in stomatal density under B deficiency.”
✓ located verbatim in the source · abstract, characters 676–856

t0
“shoot apices of Pisum sativum grown under boron (B) deficiency”
✓ located verbatim in the source · abstract, characters 215–277

Title

Single‐cell transcriptomic analysis of pea shoot development and cell‐type‐specific responses to boron deficiency

Xi Chen; Yanqi Ru; Hirokazu Takahashi; et al. The Plant Journal 2023. doi:10.1111/tpj.16487

Other claims from this paper (7)

Method / resource Single-cell analysis identified up to 15 shoot apex cell clusters and verified their identity with marker genes.
Observation Cell types responded differently to boron deficiency.
Intervention effect Boron deficiency down-regulated photosynthetic gene expression in mesophyll cells.
Intervention effect Boron deficiency reduced stomatal development gene expression in guard cells.
Method / resource The study constructed a shoot apical meristem developmental trajectory and transcription factor interaction network.
Observation SAM to mesophyll progression involved up-regulation of histone and chromatin assembly and remodeling genes.
Intervention effect Boron deficiency suppressed expression of these chromatin related genes.

Associationobservedoriginal resultmeasured

Claim · model-written summary

TE abundance shows a consistent negative correlation with gene density in A. thaliana.

Taxon: Arabidopsis thalianaArabidopsis thalianae0
Treatment: gene densitye2
Outcome: TE abundancee2
Direction: decreaseinferrede2

Verbatim

e0
“the genome sequence of Arabidopsis thaliana”
✓ located verbatim in the source · abstract, characters 334–377

e2
“a consistent negative correlation between gene density and TE abundance”
✓ located verbatim in the source · abstract, characters 711–782

Title

Effects of Recombination Rate and Gene Density on Transposable Element Distributions in Arabidopsis thaliana

Stephen I. Wright; Newton Agrawal; Thomas E. Bureau Genome Research 2003. doi:10.1101/gr.1281503

Other claims from this paper (4)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Lineage-specific alleles that increase trichome density persist in natural populations.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Material: lineage-specific allelese0
Outcome: trichome densitye0
Direction: increasee0

Verbatim

e0
“many lineage-specific alleles that either increase or decrease trichome density persist in natural populations”
✓ located verbatim in the source · abstract, characters 1046–1156

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 59–79

Title

Mapping Quantitative Trait Loci in Multiple Populations of Arabidopsis thaliana Identifies Natural Allelic Variation for Trichome Density

V Vaughan Symonds; A Veronica Godoy; Teresa Alconada; et al. Genetics 2005. doi:10.1534/genetics.104.031948

Other claims from this paper (5)

Observation Seven of nine trichome-density QTL were population-specific.
Observation Two trichome-density QTL mapped in all four populations.
Observation Lineage-specific alleles that decrease trichome density persist in natural populations.
Observation Most genetic variation in trichome density was additive.
Recommendation The authors conclude multiple populations help characterize the genetic architecture of natural variation.

“decrease in density”

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