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“decrease in density”

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Taxon: lettuce ✕

Taxon groups are the verbatim names found in the abstracts (case-insensitive), not normalised: maize, corn and Zea mays are separate groups here. The Organism view merges them through NCBI Taxonomy.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B decreased stomatal density in lettuce.

Taxon: LettuceLactuca sativae1
Treatment: UV-B radiatione1
Outcome: stomatal densitye1
Direction: decreasee1

Not reportedComparator

Verbatim

e1
“Lettuce plants subjected to UV-B radiation showed an increase in callose and oxidative stress indicators, as well as a decrease in stomatal density”
✓ located verbatim in the source · abstract, characters 524–671

Title

Leaf UV-B Irradiation and Mycorrhizal Symbionts Affect Lettuce VOC Emissions and Defence Mechanisms, but Not Aphid Feeding Preferences

Valeria Zeni; Arianna Grassi; Marco Santin; et al. Insects 2022. doi:10.3390/insects14010020

Other claims from this paper (10)

Intervention effect UV-B increased callose and oxidative stress indicators in lettuce.
Intervention effect Mycorrhizal colonization cancelled out the UV-B effect on lettuce stomatal density.
Intervention effect The symbiosis was not affected by UV-B treatment.
Intervention effect Mycorrhization had no significant effect on the lettuce volatilome, regardless of UV-B treatment.
Intervention effect UV-B significantly altered lettuce plant volatile emission.
Intervention effect The 1-undecene abundance increased under UV-B with mycorrhization (+M/+UVB: 48.0 ± 7.78%).
Intervention effect The decanal content decreased under UV-B with mycorrhization (+M/+UVB: 8.50 ± 3.90%).
Intervention effect The undecanal content decreased under UV-B with mycorrhization (+M/+UVB: 2.1 ± 0.65%).
Intervention effect The sesquiterpene hydrocarbons decreased under UV-B with mycorrhization (+M/+UVB: 18.0 ± 9.62 %).
Intervention effect Aphid (Myzus persicae) population was unaffected by any of the AMF and UV-B treatments.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Super absorbent hydrogels significantly decreased soil saturated hydraulic conductivity and bulk density.

Taxon: lettuceLactuca sativae0
Treatment: super absorbent hydrogelse4
Outcome: soil saturated hydraulic conductivity and bulk densitye4
Direction: decreasee4

Not reportedComparator

Verbatim

e0
“soil hydro-physical properties and lettuce productivity”
✓ located verbatim in the source · abstract, characters 300–355

e4
“The significant decrease in soil saturated hydraulic conductivity and bulk density confirms that super absorbent hydrogels could be recommended”
✓ located verbatim in the source · abstract, characters 1219–1362

Title

Effect of super absorbent hydrogel on hydro-physical properties of soil under deficit irrigation

Rasha Abdelghafar; Ahmed Abdelfattah; Harby Mostafa Scientific Reports 2024. doi:10.1038/s41598-024-57786-5

Other claims from this paper (6)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Higher photon flux density decreased chlorophyll:carotenoid ratio in both cultivars.

Taxon: lettuceLactuca sativat0
Treatment: higher PFDe0
Outcome: chlorophyll:carotenoid ratioe0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“decrease in chlorophyll:carotenoid ratio in response to higher PFD were found in both cultivars.”
✓ located verbatim in the source · abstract, characters 1685–1781

t0
“lettuce”
✓ located verbatim in the source · title, characters 71–78

Title

Using leaf spectroscopy and pigment estimation to monitor indoor grown lettuce dynamic response to spectral light intensity

Laura Cammarisano; Jan Graefe; Oliver Körner Frontiers in Plant Science 2022. doi:10.3389/fpls.2022.1044976

Other claims from this paper (3)

Intervention effect WB40 increased measured and estimated pigments in both cultivars.
Association Pigment stimulation over time differed by cultivar.
Method / resource Modelled and measured pigment content ranges were comparable.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 0.1 to 1.0μL L-1 ethylene, lettuce photosynthesis and transpiration rates did not decrease across tested photon flux densities.

Taxon: lettuceLactuca sativae1
Treatment: 0.1 to 1.0μL L-1 of ethylenee1
Outcome: rates of lettuce plante1
Direction: no decreasese1
Qualifier: under any photosynthetic photon flux density (130, 270, and 380μmol m-2 s-1)e1

Not reportedComparator

Verbatim

t0
“Lettuce”
✓ located verbatim in the source · title, characters 97–104

e1
“no decreases in the rates of lettuce plant were observed at 0.1 to 1.0μL L-1 of ethylene under any photosynthetic photon flux density (130, 270, and 380μmol m-2 s-1)”
✓ located verbatim in the source · abstract, characters 417–582

Title

Studies on Trace Contaminant Accumulated in Closed Systems. Effects of Ethylene on the Growth of Lettuce.

Akira TANI; Takao SAITO; Makoto KIYOTA; et al. Seibutsu kankyō chōsetsu/Seibutsu kankyou chousetsu 1996. doi:10.2525/ecb1963.34.37

Other claims from this paper (7)

Association Lettuce absorbed ethylene, with absorption increasing as ethylene concentration rose.
Observation Lettuce did not absorb ethylene under dark conditions.
Intervention effect Lettuce cultivated at 0.5μL L-1 ethylene for 10 days developed epinasty and chlorosis.
Intervention effect At 0.5μL L-1 ethylene for 10 days, lettuce leaf expansion was inhibited.
Intervention effect At 0.1μL L-1 ethylene, lettuce leaf expansion was significantly inhibited.
Intervention effect Growth rate was slightly lower in ethylene exposed lettuce than in ethylene free air.
Recommendation The authors estimated the allowable ethylene level for lettuce at about 0.1μL L-1.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mycorrhizal colonization cancelled out the UV-B effect on lettuce stomatal density.

Taxon: LettuceLactuca sativae1
Treatment: Mycorrhizal colonizatione2
Interactor: AMFe0symbiont
Outcome: stomatal densitye2
Direction: no_changeinferrede2

Not reportedComparator

Verbatim

e1
“Lettuce plants subjected to UV-B radiation showed an increase in callose and oxidative stress indicators, as well as a decrease in stomatal density”
✓ located verbatim in the source · abstract, characters 524–671

e2
“Mycorrhizal colonization cancelled out the effect of UV-B on stomatal density, while the symbiosis was not affected by UV-B treatment”
✓ located verbatim in the source · abstract, characters 673–806

e0
“lettuce plant response to AMF inoculation and UV-B exposure (0.4 W m−2; 16 h d−1; 2 weeks), either together or individually, as well as the interaction with the polyphagous insect pest Myzus persicae (Sulzer)”
✓ located verbatim in the source · abstract, characters 314–522

Title

Leaf UV-B Irradiation and Mycorrhizal Symbionts Affect Lettuce VOC Emissions and Defence Mechanisms, but Not Aphid Feeding Preferences

Valeria Zeni; Arianna Grassi; Marco Santin; et al. Insects 2022. doi:10.3390/insects14010020

Other claims from this paper (10)

Intervention effect UV-B increased callose and oxidative stress indicators in lettuce.
Intervention effect UV-B decreased stomatal density in lettuce.
Intervention effect The symbiosis was not affected by UV-B treatment.
Intervention effect Mycorrhization had no significant effect on the lettuce volatilome, regardless of UV-B treatment.
Intervention effect UV-B significantly altered lettuce plant volatile emission.
Intervention effect The 1-undecene abundance increased under UV-B with mycorrhization (+M/+UVB: 48.0 ± 7.78%).
Intervention effect The decanal content decreased under UV-B with mycorrhization (+M/+UVB: 8.50 ± 3.90%).
Intervention effect The undecanal content decreased under UV-B with mycorrhization (+M/+UVB: 2.1 ± 0.65%).
Intervention effect The sesquiterpene hydrocarbons decreased under UV-B with mycorrhization (+M/+UVB: 18.0 ± 9.62 %).
Intervention effect Aphid (Myzus persicae) population was unaffected by any of the AMF and UV-B treatments.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

WR139 reduced lettuce height by 40.0% relative to natural light.

Taxon: LettuceLactuca sativae0
Treatment: WR139e0
Outcome: plant heighte0
Direction: decreasee0
Value: 40.0%e0
Comparator: NLe0

Verbatim

e0
“Lettuce grown under WR139 resulted in a 40.0% decrease in plant height, 66.8% increase in leaf thickness, and 34.1% increase in shoot fresh weight compared with those of lettuce grown under NL.”
✓ located verbatim in the source · abstract, characters 1047–1240

Title

Partially Substituting Photosynthetic Photon Flux Density with Far-red Photons Differentially Alters Biomass Accumulation and Photochemical Efficiency of Greenhouse Lettuce

Zhengnan Yan; Xin Li; Zhixin Li; et al. HortScience 2024. doi:10.21273/hortsci18126-24

Other claims from this paper (12)

Intervention effect Supplementary light lowered lettuce height relative to natural light.
Intervention effect Supplementary light made lettuce leaves thicker than natural light.
Intervention effect Supplementary light increased lettuce biomass accumulation relative to natural light.
Intervention effect Supplementary light increased lettuce vitamin C, starch, and total soluble sugar content relative to natural light.
Intervention effect WR139 increased lettuce leaf thickness by 66.8% relative to natural light.
Intervention effect WR139 increased lettuce shoot fresh weight by 34.1% relative to natural light.
Observation The three lowest far-red treatments did not differ significantly in listed morphology and biomass measures.
Observation The three lowest far-red treatments did not differ significantly in listed physiological measures.
Association Greater far-red substitution was associated with declining lettuce biomass accumulation.
Association Greater far-red substitution was associated with declining lettuce maximum net photosynthetic rate.
Association Lettuce maximum photochemical quantum yield showed the opposite, increasing trend.
Recommendation The authors advise considering photon flux density when applying far-red photons because excess substitution had negative effects.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV-B increased callose and oxidative stress indicators in lettuce.

Taxon: LettuceLactuca sativae1
Treatment: UV-B radiatione1
Outcome: callose and oxidative stress indicatorse1
Direction: increasee1

Not reportedComparator

Verbatim

e1
“Lettuce plants subjected to UV-B radiation showed an increase in callose and oxidative stress indicators, as well as a decrease in stomatal density”
✓ located verbatim in the source · abstract, characters 524–671

Title

Leaf UV-B Irradiation and Mycorrhizal Symbionts Affect Lettuce VOC Emissions and Defence Mechanisms, but Not Aphid Feeding Preferences

Valeria Zeni; Arianna Grassi; Marco Santin; et al. Insects 2022. doi:10.3390/insects14010020

Other claims from this paper (10)

Intervention effect UV-B decreased stomatal density in lettuce.
Intervention effect Mycorrhizal colonization cancelled out the UV-B effect on lettuce stomatal density.
Intervention effect The symbiosis was not affected by UV-B treatment.
Intervention effect Mycorrhization had no significant effect on the lettuce volatilome, regardless of UV-B treatment.
Intervention effect UV-B significantly altered lettuce plant volatile emission.
Intervention effect The 1-undecene abundance increased under UV-B with mycorrhization (+M/+UVB: 48.0 ± 7.78%).
Intervention effect The decanal content decreased under UV-B with mycorrhization (+M/+UVB: 8.50 ± 3.90%).
Intervention effect The undecanal content decreased under UV-B with mycorrhization (+M/+UVB: 2.1 ± 0.65%).
Intervention effect The sesquiterpene hydrocarbons decreased under UV-B with mycorrhization (+M/+UVB: 18.0 ± 9.62 %).
Intervention effect Aphid (Myzus persicae) population was unaffected by any of the AMF and UV-B treatments.

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

UV-B significantly altered lettuce plant volatile emission.

Taxon: LettuceLactuca sativae1
Treatment: UV-B treatmente3
Outcome: plant volatile emissione3

Not reportedComparatorDirection

Verbatim

e1
“Lettuce plants subjected to UV-B radiation showed an increase in callose and oxidative stress indicators, as well as a decrease in stomatal density”
✓ located verbatim in the source · abstract, characters 524–671

e3
“The plant volatile emission was significantly altered by UV-B treatment”
✓ located verbatim in the source · abstract, characters 808–879

Title

Leaf UV-B Irradiation and Mycorrhizal Symbionts Affect Lettuce VOC Emissions and Defence Mechanisms, but Not Aphid Feeding Preferences

Valeria Zeni; Arianna Grassi; Marco Santin; et al. Insects 2022. doi:10.3390/insects14010020

Other claims from this paper (10)

Intervention effect UV-B increased callose and oxidative stress indicators in lettuce.
Intervention effect UV-B decreased stomatal density in lettuce.
Intervention effect Mycorrhizal colonization cancelled out the UV-B effect on lettuce stomatal density.
Intervention effect The symbiosis was not affected by UV-B treatment.
Intervention effect Mycorrhization had no significant effect on the lettuce volatilome, regardless of UV-B treatment.
Intervention effect The 1-undecene abundance increased under UV-B with mycorrhization (+M/+UVB: 48.0 ± 7.78%).
Intervention effect The decanal content decreased under UV-B with mycorrhization (+M/+UVB: 8.50 ± 3.90%).
Intervention effect The undecanal content decreased under UV-B with mycorrhization (+M/+UVB: 2.1 ± 0.65%).
Intervention effect The sesquiterpene hydrocarbons decreased under UV-B with mycorrhization (+M/+UVB: 18.0 ± 9.62 %).
Intervention effect Aphid (Myzus persicae) population was unaffected by any of the AMF and UV-B treatments.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

WR139 increased lettuce leaf thickness by 66.8% relative to natural light.

Taxon: LettuceLactuca sativae0
Treatment: WR139e0
Outcome: leaf thicknesse0
Direction: increasee0
Value: 66.8%e0
Comparator: NLe0

Verbatim

e0
“Lettuce grown under WR139 resulted in a 40.0% decrease in plant height, 66.8% increase in leaf thickness, and 34.1% increase in shoot fresh weight compared with those of lettuce grown under NL.”
✓ located verbatim in the source · abstract, characters 1047–1240

Title

Partially Substituting Photosynthetic Photon Flux Density with Far-red Photons Differentially Alters Biomass Accumulation and Photochemical Efficiency of Greenhouse Lettuce

Zhengnan Yan; Xin Li; Zhixin Li; et al. HortScience 2024. doi:10.21273/hortsci18126-24

Other claims from this paper (12)

Intervention effect Supplementary light lowered lettuce height relative to natural light.
Intervention effect Supplementary light made lettuce leaves thicker than natural light.
Intervention effect Supplementary light increased lettuce biomass accumulation relative to natural light.
Intervention effect Supplementary light increased lettuce vitamin C, starch, and total soluble sugar content relative to natural light.
Intervention effect WR139 reduced lettuce height by 40.0% relative to natural light.
Intervention effect WR139 increased lettuce shoot fresh weight by 34.1% relative to natural light.
Observation The three lowest far-red treatments did not differ significantly in listed morphology and biomass measures.
Observation The three lowest far-red treatments did not differ significantly in listed physiological measures.
Association Greater far-red substitution was associated with declining lettuce biomass accumulation.
Association Greater far-red substitution was associated with declining lettuce maximum net photosynthetic rate.
Association Lettuce maximum photochemical quantum yield showed the opposite, increasing trend.
Recommendation The authors advise considering photon flux density when applying far-red photons because excess substitution had negative effects.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

WR139 increased lettuce shoot fresh weight by 34.1% relative to natural light.

Taxon: LettuceLactuca sativae0
Treatment: WR139e0
Outcome: shoot fresh weighte0
Direction: increasee0
Value: 34.1%e0
Comparator: NLe0

Verbatim

e0
“Lettuce grown under WR139 resulted in a 40.0% decrease in plant height, 66.8% increase in leaf thickness, and 34.1% increase in shoot fresh weight compared with those of lettuce grown under NL.”
✓ located verbatim in the source · abstract, characters 1047–1240

Title

Partially Substituting Photosynthetic Photon Flux Density with Far-red Photons Differentially Alters Biomass Accumulation and Photochemical Efficiency of Greenhouse Lettuce

Zhengnan Yan; Xin Li; Zhixin Li; et al. HortScience 2024. doi:10.21273/hortsci18126-24

Other claims from this paper (12)

Intervention effect Supplementary light lowered lettuce height relative to natural light.
Intervention effect Supplementary light made lettuce leaves thicker than natural light.
Intervention effect Supplementary light increased lettuce biomass accumulation relative to natural light.
Intervention effect Supplementary light increased lettuce vitamin C, starch, and total soluble sugar content relative to natural light.
Intervention effect WR139 reduced lettuce height by 40.0% relative to natural light.
Intervention effect WR139 increased lettuce leaf thickness by 66.8% relative to natural light.
Observation The three lowest far-red treatments did not differ significantly in listed morphology and biomass measures.
Observation The three lowest far-red treatments did not differ significantly in listed physiological measures.
Association Greater far-red substitution was associated with declining lettuce biomass accumulation.
Association Greater far-red substitution was associated with declining lettuce maximum net photosynthetic rate.
Association Lettuce maximum photochemical quantum yield showed the opposite, increasing trend.
Recommendation The authors advise considering photon flux density when applying far-red photons because excess substitution had negative effects.

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“decrease in density”

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