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“decrease in density”

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Organism: Arabidopsis thaliana ✕

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Reduced stomatal density had no measurable effect on photosynthesis efficiency, thermal sensitivity or stomatal dynamics.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Treatment: decrease in stomatal densitye0
Outcome: efficiency and thermal sensitivity of photosynthesis, or on stomatal dynamicse0
Direction: absence of any measurable impacte0

Not reportedComparator

Verbatim

e0
“this decrease in stomatal density occurs in the absence of any measurable impact on the efficiency and thermal sensitivity of photosynthesis, or on stomatal dynamics”
✓ located verbatim in the source · abstract, characters 673–838

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 151–171

Title

Metabolic engineering of stomatal precursor cells enhances photosynthetic water‐use efficiency and vegetative growth under water‐deficit conditions in Arabidopsis thaliana

Jacques W. Bouvier; Steven Kelly Plant Biotechnology Journal 2025. doi:10.1111/pbi.70130

Other claims from this paper (4)

Intervention effect Expression of a water forming NAD(P)H oxidase in stomatal precursors decreased stomatal density.
Observation The stomatal density decrease occurred with enzyme localization in each tested cell compartment.
Intervention effect Overexpression plants had higher intrinsic water use efficiency through more carbon fixed per unit water transpired.
Intervention effect Enhanced water use efficiency improved vegetative growth and biomass under water deficit.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Under short-term high-light stress, photosystem I and II potential activities decreased to a similar extent in lcd1-1 and wild type.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Material: lcd1-1e4
Treatment: short-term high-light stresse4
Outcome: potential activities of photosystems I (PSI) and II (PSII)e4
Direction: decreasee4
Comparator: wild typee4

Verbatim

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 49–69

e4
“When the wild type and lcd1-1 are exposed to short-term high-light stress, leaves do not bleach in lcd1-1 and potential activities of photosystems I (PSI) and II (PSII) decrease to a similar extent in both the genotypes”
✓ located verbatim in the source · abstract, characters 906–1125

Title

The lower cell density of leaf parenchyma in the Arabidopsis thaliana mutant lcd1‐1 is associated with increased sensitivity to ozone and virulent Pseudomonas syringae

Carina Barth; Patricia L. Conklin The Plant Journal 2003. doi:10.1046/j.1365-313x.2003.01795.x

Other claims from this paper (10)

Association The lcd1-1 mutant had decreased chlorophyll content associated with lower palisade cell density.
Observation The lcd1-1 mutant had lower cell density in the leaf palisade parenchyma.
Intervention effect Ozone increased malondialdehyde in lcd1-1 leaves compared with the wild type.
Intervention effect Ozone made lcd1-1 leaves paler.
Intervention effect Virulent Pseudomonas syringae growth was higher in lcd1-1 than in the wild type.
Intervention effect PR-1 and PR-5 expression was lower in lcd1-1 than in the wild type after infection with virulent Pseudomonas syringae.
Intervention effect Under short-term high-light stress, lcd1-1 leaves did not bleach.
Observation The LCD1 gene of lcd1-1 contains a nonsense mutation.
Observation The LCD1 gene is located at the bottom of chromosome 2.
Mechanism Increased sensitivity to ozone and virulent P. syringae is suggested to be a secondary effect of the lower-cell-density phenotype, with LCD1 playing a role in leaf development.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

High nitrate did not change amino acid composition.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Treatment: 10 m m KNO 3e0
Outcome: amino acid compositione0
Direction: no changee0
Comparator: 0.5 m m KNO 3e1

Verbatim

e0
“Fourteen‐day‐old 10 m m KNO 3 ‐grown plants displayed a decrease in number, length and density of lateral roots, had the highest tissue NO 3 – content, but no change in amino acid composition.”
✓ located verbatim in the source · abstract, characters 366–558

e1
“compared to plants grown on 0.5 m m KNO 3”
✓ located verbatim in the source · abstract, characters 322–363

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 92–112

Title

Transcription factor genes with expression correlated to nitrate‐related root plasticity of Arabidopsis thaliana

T. J. TRANBARGER; Y. AL‐GHAZI; B. MULLER; et al. Plant Cell & Environment 2003. doi:10.1046/j.1365-3040.2003.00977.x

Other claims from this paper (8)

Intervention effect High nitrate decreased lateral root number, length and density.
Intervention effect High nitrate plants had the highest tissue nitrate content.
Observation Lateral root development arrested after primordium initiation and before emergence.
Intervention effect Glutamine supplementation slightly increased lateral root primordium and root number and density.
Intervention effect Glutamine supplementation lowered root nitrate content.
Intervention effect Glutamine supplementation increased tissue glutamine content.
Association A bZIP transcription factor gene was identified with root-preferential expression correlated with the nitrate root response.
Association A LIM transcription factor gene was identified with root-preferential expression correlated with the nitrate root response.

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