Search claims · PlantClaims

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

At simulated 25% ozone reduction, photosynthesis recovered after an initial decrease.

Taxon: loblolly pinePinus taedat0
Treatment: UV‐B radiation which simulated a 25% stratospheric ozone reductiont1
Outcome: photosynthesise0
Direction: recoverye0
Qualifier: after an initial decreasee0

Not reportedComparator

Verbatim

e0
“which paralleled a recovery in photosynthesis and growth after an initial decrease in these characteristics”
✓ located verbatim in the source · abstract, characters 969–1076

t0
“loblolly pine”
✓ located verbatim in the source · title, characters 42–55

t1
“UV‐B radiation which simulated a 25% stratospheric ozone reduction”
✓ located verbatim in the source · abstract, characters 825–891

Title

The effects of ultraviolet‐B radiation on loblolly pine. I. Growth, photosynthesis and pigment production in greenhouse‐grown seedlings

Joe H. Sullivan; Alan H. Teramura Physiologia Plantarum 1989. doi:10.1111/j.1399-3054.1989.tb04970.x

Other claims from this paper (11)

Intervention effect The lowest supplemental UV-B reduced seedling growth after one month.
Intervention effect The lowest supplemental UV-B reduced photosynthetic capacity after one month.
Intervention effect Those initial reductions persisted and biomass production was lower.
Intervention effect Lowest supplemental UV-B did not increase needle UV-B absorbing compounds.
Intervention effect At simulated 25% ozone reduction, UV-B absorbing compounds increased after six months.
Intervention effect At simulated 25% ozone reduction, growth recovered after an initial decrease.
Intervention effect At the highest UV-B irradiance, absorbing compounds increased more rapidly.
Intervention effect Highest UV-B irradiance had no growth effect until after four months.
Intervention effect Highest UV-B irradiance had no photosynthetic capacity effect until after four months.
Intervention effect UV-B had no observed effect on needle chlorophyll concentration.
Intervention effect UV-B had no observed effect on stomatal conductance.

Mechanismauthor interpretationoriginal resultmixedmeasured

Claim · model-written summary

BCMV infection was inferred to increase flavonoid accumulation and decrease photosynthesis.

Taxon: poplarPopulust0
Treatment: BCMV infectione0
Interactor: BCMVBean common mosaic viruse0pathogent0
Outcome: accumulation of flavonoids but decreased photosynthesise0

Verbatim

e0
“BCMV infection increased the accumulation of flavonoids but decreased photosynthesis in hosts”
✓ located verbatim in the source · abstract, characters 1068–1161

t0
“poplar leaves infected by the novel pathogen bean common mosaic virus (BCMV)”
✓ located verbatim in the source · title, characters 83–159

Title

Integrated transcriptome and microRNA sequencing analyses reveal gene responses in poplar leaves infected by the novel pathogen bean common mosaic virus (BCMV)

Li Wang; Weixi Zhang; Wanna Shen; et al. Frontiers in Plant Science 2023. doi:10.3389/fpls.2023.1163232

Other claims from this paper (18)

Intervention effect BCMV infection decreased chlorophyll content in diseased poplar leaves.
Intervention effect BCMV infection inhibited net photosynthesis rate and stomatal conductance.
Intervention effect BCMV infection significantly changed chlorophyll fluorescence parameters.
Observation Most DEGs in flavonoid biosynthesis were promoted in poplar leaves.
Observation Almost all DEGs in photosynthesis-related pathways were inhibited in poplar leaves.
Observation Viral infection promoted expression of defense and plant-pathogen interaction genes.
Observation Ten miRNA families were upregulated in diseased poplar leaves.
Observation Six miRNA families were downregulated in diseased poplar leaves.
Observation miR156 was differentially upregulated only in long-period diseased poplar leaves.
Observation Integrated analyses identified 29 candidate miRNA-target gene pairs in short-period disease leaves.
Observation Integrated analyses identified 145 candidate miRNA-target gene pairs in long-period disease leaves.
Observation Seventeen pairs, 2.2% of DEGs, were negatively regulated in short-period disease leaves.
Observation Seventy-six pairs, 3.2% of DEGs, were negatively regulated in long-period disease leaves.
Observation Four miR156/SPL pairs were identified in long-period diseased leaves.
Observation In long-period disease leaves, miR156 molecules were upregulated.
Observation In long-period disease leaves, SPL genes were downregulated.
Intervention effect BCMV infection induced systematic mosaic symptoms in poplar leaves.
Mechanism The authors suggested miR156/SPL modules have important roles in virus response and systemic mosaic symptoms.

Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

One group of wheat plants conserved tissue water through a fast decrease in stomatal conductance while maintaining pressure potential and leaf photosynthesis.

Taxon: wheat cultivarsTriticum aestivumt0
Outcome: tissue water contente0
Direction: savee0
Qualifier: fast decrease of stomatal conductancee0

Verbatim

e0
“plants using the first strategy save tissue water content by a fast decrease of stomatal conductance, maintain pressure potential and photosynthetic activity of leaves”
✓ located verbatim in the source · abstract, characters 325–492

t0
“wheat cultivars”
✓ located verbatim in the source · title, characters 81–96

Title

Changes in water and chlorophyll fluorescence parameters under osmotic stress in wheat cultivars

Ágnes Gallé; Jolán Csiszár; Irma Tari; et al. Acta Biologica Szegediensis 2002

Other claims from this paper (1)

Observation The second wheat group closed stomata later, causing intensive water loss and a fast decline in leaf water potential before turgor recovered after a long acclimation phase.

Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

Photosynthesis decline was largely reversible after rehydration at low nitrogen but not high nitrogen.

Taxon: tall fescueLolium arundinaceumt0
Outcome: decrease of photosynthesise0
Direction: largely reversiblee0
Qualifier: after rehydration in low‐Ne0
Comparator: high‐Ne0

Verbatim

e0
“The decrease of photosynthesis was largely reversible after rehydration in low‐N but not in high‐N leaves.”
✓ located verbatim in the source · abstract, characters 1118–1224

t0
“tall fescue”
✓ located verbatim in the source · title, characters 66–77

Title

Effects of nitrogen deficiency on leaf photosynthetic response of tall fescue to water deficit

J. GHASHGHAIE; B. SAUGIER Plant Cell & Environment 1989. doi:10.1111/j.1365-3040.1989.tb01940.x

Other claims from this paper (6)

Intervention effect At high nitrogen, CO2 uptake declined at a lower leaf water potential than at low nitrogen.
Intervention effect At high nitrogen, stomatal conductance declined at a lower leaf water potential than at low nitrogen.
Intervention effect At high nitrogen, leaves began rolling at a lower leaf water potential than at low nitrogen.
Observation Stomatal inhibition of photosynthesis appeared larger under low nitrogen.
Observation Water use efficiency rose more during drought under high nitrogen.
Mechanism The authors suggest low nitrogen plants avoid water deficit rather than tolerate it.

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

At simulated 25% ozone reduction, growth recovered after an initial decrease.

Taxon: loblolly pinePinus taedat0
Treatment: UV‐B radiation which simulated a 25% stratospheric ozone reductiont1
Outcome: growthe0
Direction: recoverye0
Qualifier: after an initial decreasee0

Not reportedComparator

Verbatim

e0
“which paralleled a recovery in photosynthesis and growth after an initial decrease in these characteristics”
✓ located verbatim in the source · abstract, characters 969–1076

t0
“loblolly pine”
✓ located verbatim in the source · title, characters 42–55

t1
“UV‐B radiation which simulated a 25% stratospheric ozone reduction”
✓ located verbatim in the source · abstract, characters 825–891

Title

The effects of ultraviolet‐B radiation on loblolly pine. I. Growth, photosynthesis and pigment production in greenhouse‐grown seedlings

Joe H. Sullivan; Alan H. Teramura Physiologia Plantarum 1989. doi:10.1111/j.1399-3054.1989.tb04970.x

Other claims from this paper (11)

Intervention effect The lowest supplemental UV-B reduced seedling growth after one month.
Intervention effect The lowest supplemental UV-B reduced photosynthetic capacity after one month.
Intervention effect Those initial reductions persisted and biomass production was lower.
Intervention effect Lowest supplemental UV-B did not increase needle UV-B absorbing compounds.
Intervention effect At simulated 25% ozone reduction, UV-B absorbing compounds increased after six months.
Intervention effect At simulated 25% ozone reduction, photosynthesis recovered after an initial decrease.
Intervention effect At the highest UV-B irradiance, absorbing compounds increased more rapidly.
Intervention effect Highest UV-B irradiance had no growth effect until after four months.
Intervention effect Highest UV-B irradiance had no photosynthetic capacity effect until after four months.
Intervention effect UV-B had no observed effect on needle chlorophyll concentration.
Intervention effect UV-B had no observed effect on stomatal conductance.

Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

Apparent growth rate did not decline stoichiometrically with decreased photosynthesis.

Taxon: tobaccoNicotiana tabacumt0
Outcome: apparent growth ratee0
Direction: not accompanied by a stoichiometric decreasee0

Verbatim

e0
“The decreased rate of photosynthesis was not accompanied by a stoichiometric decrease in apparent growth rate.”
✓ located verbatim in the source · abstract, characters 1121–1231

t0
“in tobacco growing under extreme high irradiance”
✓ located verbatim in the source · title, characters 155–203

Title

Decreased ribulose‐1,5‐bisphosphate carboxylase/oxygenase in transgenic tobacco transformed with ‘antisense’rbcS.VIII. Impact on photosynthesis and growth in tobacco growing under extreme high irradiance and high temperature

A. KRAPP; M. M. CHAVES; M. M. DAVID; et al. Plant Cell & Environment 1994. doi:10.1111/j.1365-3040.1994.tb00323.x

Other claims from this paper (7)

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

The heat-stress decrease in dry matter accumulation was smaller for ZD958 than for XY335.

Taxon: MaizeZea mayst0
Material: ZD958e2
Treatment: HSe1
Outcome: dry matter accumulatione2
Direction: lesser extente2
Comparator: XY335e2

Verbatim

t0
“Maize”
✓ located verbatim in the source · title, characters 59–64

e1
“HS negatively affected photosynthesis”
✓ located verbatim in the source · abstract, characters 846–883

e2
“and then decreased dry matter accumulation of maize, with a lesser extent for ZD958 than XY335”
✓ located verbatim in the source · abstract, characters 1053–1147

Title

Nitrogen Supply Mitigates Heat Stress on Photosynthesis of Maize (Zea mays L.) During Early Grain Filling by Improving Nitrogen Assimilation

Dong Guo; Rui Wang; Chuanyong Chen; et al. Journal of Agronomy and Crop Science 2024. doi:10.1111/jac.12750

Other claims from this paper (11)

Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

Photosynthesis and gas exchange metrics first increased and then decreased.

Taxon: Camellia sasanquaCamellia sasanquat0
Outcome: net photosynthetic (Pn), intercellular CO2 concentration (Ci), stomatal conductance (Gs), and transpiration rate (Tr)e0
Direction: increase first and then decreasee0

Verbatim

e0
“The net photosynthetic (Pn), intercellular CO2 concentration (Ci), stomatal conductance (Gs), and transpiration rate (Tr) all showed a trend of increase first and then decrease”
✓ located verbatim in the source · abstract, characters 1050–1226

t0
“Camellia sasanqua”
✓ located verbatim in the source · title, characters 82–99

Title

Effects of simulated acid rain on physiological and ecological characteristics of Camellia sasanqua.

Zhao Dong; Yuanzhi Pan; Deng ShiHuai; et al. Zhongguo nongye Kexue 2010

Other claims from this paper (8)

Intervention effect Acid rain stress increased leaf membrane permeability and malondialdehyde content.
Association Leaf membrane permeability and malondialdehyde content were significantly correlated.
Observation SOD and CAT activity peaked at pH 4.0.
Observation POD activity peaked at pH 3.0.
Observation Chlorophyll content first declined with falling pH, then rose significantly at pH 2.0.
Observation Stomatal limitation gradually increased.
Recommendation The authors identified pH 3.0 as a critical point for otherwise acid-rain-resistant camellia.
Recommendation The authors propose camellia for landscaping in acid-rain areas.

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Prolonged salicylic acid at 22 °C decreased visible photosynthesis and respiration ratio.

Taxon: WHEAT PLANTTriticum aestivumt0
Treatment: prolonged action of SAe0
Outcome: rate of visible photosynthesis and the ratio of respiratione0
Direction: decreasee0
Setting: 22 °Ce0

Not reportedComparator

Verbatim

e0
“at a temperature of 22 °C, the prolonged action of SA led to a decrease in the rate of visible photosynthesis and the ratio of respiration in the process of CO 2 -gas exchange”
✓ located verbatim in the source · abstract, characters 599–774

t0
“CHARACTERISTICS OF WHEAT PLANT RESPONSES TO SHORT-TERM AND PROLONGED EXPOSURE TO SALICYLIC ACID UNDER OPTIMAL AND LOW TEMPERATURE”
✓ located verbatim in the source · title, characters 0–129

Title

CHARACTERISTICS OF WHEAT PLANT RESPONSES TO SHORT-TERM AND PROLONGED EXPOSURE TO SALICYLIC ACID UNDER OPTIMAL AND LOW TEMPERATURE

Екатерина Станиславовна Холопцева; Анна Анатольевна Игнатенко; Наталья Сергеевна Репкина; et al. Proceedings of the Karelian Research Centre of the Russian Academy of Sciences 2019. doi:10.17076/eb1054

Other claims from this paper (14)

Intervention effect Prolonged salicylic acid at 22 °C did not affect water use efficiency.
Intervention effect Prolonged salicylic acid at 22 °C increased shoot and root biomass.
Intervention effect One-day salicylic acid exposure had virtually no effect on CO2 assimilation dynamics.
Intervention effect One-day salicylic acid exposure reduced respiration ratio and transpiration.
Intervention effect One-day salicylic acid exposure increased water use efficiency.
Intervention effect Continuous salicylic acid at 4 °C maintained photosynthesis above control.
Intervention effect Continuous salicylic acid at 4 °C reduced respiration ratio.
Intervention effect Continuous salicylic acid at 4 °C increased water use efficiency.
Intervention effect Continuous salicylic acid at 4 °C stabilized plant biomass accumulation.
Intervention effect One-day salicylic acid pretreatment worsened the low-temperature effect on CO2 assimilation.
Intervention effect One-day salicylic acid pretreatment increased respiration expense.
Intervention effect One-day salicylic acid pretreatment did not affect transpiration.
Intervention effect One-day salicylic acid pretreatment decreased water use efficiency.
Intervention effect Exogenous salicylic acid increased wheat cold tolerance under normal and low hardening temperatures.

Observationobservedoriginal resultmixedmeasured

Claim · model-written summary

MDA content followed an increase-decrease-increase trend.

Taxon: Hemerocallis fulva var. floreplenoHemerocallis fulvat0
Outcome: content of MDAe0
Direction: increasing-decreasing-increasinge0

Verbatim

e0
“the content of MDA showed increasing-decreasing-increasing trend”
✓ located verbatim in the source · abstract, characters 640–704

t0
“Hemerocallis fulva var. florepleno”
✓ located verbatim in the source · title, characters 71–105

Title

Effect of Shading on Photosynthesis Pigment Contents and Physiology of Hemerocallis fulva var. florepleno

Hua Xiang Hunan Agricultural Sciences 2009

Other claims from this paper (6)

Observation Photosynthetic pigments rose then fell across shade treatments.
Intervention effect Shading increased chlorophyll content.
Intervention effect Shading decreased chlorophyll a/b rate.
Association Free proline increased as light intensity rose.
Observation Soluble sugar rose then fell during growth.
Intervention effect Moderate shading delayed maturity and flowering.

“decrease of the photosynthesis”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics