Search claims · PlantClaims

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Photoinhibitory treatment beyond 2 h did not further decrease photosynthesis in soybean.

Taxon: soybeanGlycine maxe2
Treatment: photoinhibitory treatment for periods in excess of 2 he2
Outcome: photosynthesise2
Direction: did not cause a further decreasee2

Not reportedComparator

Verbatim

e2
“Exposure to the photoinhibitory treatment for periods in excess of 2 h did not cause a further decrease of photosynthesis in soybean”
✓ located verbatim in the source · abstract, characters 691–823

Title

Photoinhibition under Atmospheric O₂, the Activation State of RuBP Carboxylase and the Content of Photosynthetic Intermediates in Soybean and Wheat

DAVID A. WARD; BERT G. DRAKE Journal of Experimental Botany 1987. doi:10.1093/jxb/38.12.1937

Other claims from this paper (7)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Additional UV irradiation did not decrease the rate of photosynthesis relative to the control variant.

Taxon: Stevia rebaudianaStevia rebaudianat0
Treatment: additional UV irradiatione0
Outcome: rate of photosynthesise7
Direction: did not decreasee7
Comparator: control variante1

Verbatim

t0
“Stevia rebaudiana Bertoni”
✓ located verbatim in the source · title, characters 122–147

e0
“the effect of additional UV irradiation of various ranges in addition to the main one”
✓ located verbatim in the source · abstract, characters 159–244

e1
“compared with the control variant”
✓ located verbatim in the source · abstract, characters 449–482

e7
“while the rate of photosynthesis did not decrease”
✓ located verbatim in the source · abstract, characters 597–646

Title

Effect of UV Stress on the Antioxidant Capacity, Photosynthetic Activity, Flavonoid and Steviol Glycoside Accumulation of Stevia rebaudiana Bertoni

Natalia A. Semenova; Alina S. Ivanitskikh; Nadezhda I. Uyutova; et al. Horticulturae 2024. doi:10.3390/horticulturae10030210

Other claims from this paper (12)

Intervention effect Additional UV-A and UV-B irradiation slightly increased leaf fresh weight relative to the control variant in stevia.
Intervention effect UV-A irradiation significantly increased leaf surface area relative to the control variant (value 23.3 as written).
Intervention effect UV-B irradiation significantly increased leaf surface area relative to the control variant by 20.7%.
Intervention effect UV-B irradiation significantly increased total flavonoid content by 74%.
Intervention effect Additional UV-B and UV-C irradiation decreased antioxidant capacity by an average of 30% compared with the control and UV-A.
Intervention effect UV-B irradiation gave the highest steviol glycoside concentration during budding and flowering, by 13.2.
Intervention effect UV-C irradiation gave the highest steviol glycoside concentration during budding and flowering, by 11.3%.
Intervention effect UV-C irradiation caused an increase in relative chlorophyll content in stevia, reflecting light stress.
Intervention effect UV-C irradiation decreased the CO2 absorption rate of stevia.
Intervention effect UV-C irradiation inhibited stevia plant growth.
Intervention effect UV-C irradiation caused scorches and leaf morphology changes in stevia.
Recommendation The authors recommend UV-B irradiation as an optimal type of irradiation based on a set of indicators.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Under saturating CO2, pod removal did not decrease photosynthesis measured by O2 evolution.

Taxon: beant0
Outcome: photosynthetic ratee0
Direction: not observede0
Qualifier: conditions of saturating CO2e0

Not reportedTreatmentComparator

Verbatim

e0
“such a decrease in the photosynthetic rate was not observed when measured with O2 evolution under conditions of saturating CO2”
✓ located verbatim in the source · abstract, characters 538–664

t0
“pod-removed bean”
✓ located verbatim in the source · title, characters 86–102

Title

Relationship between the suppression of photosynthesis and starch accumulation in the pod-removed bean

Hiromi Nakano; Shinichi Muramatsu; Amane Makino; et al. Australian Journal of Plant Physiology 2000. doi:10.1071/pp99071

Other claims from this paper (9)

Intervention effect Pod removal decreased bean gas-exchange photosynthesis, stomatal conductance and intercellular CO2 pressure.
Association The photosynthetic decrease was associated with increased starch content.
Intervention effect Pod removal did not change Rubisco and other photosynthetic component amounts.
Intervention effect Depodded plants showed reduced CO2-limited photosynthesis for a given Rubisco content.
Intervention effect Rubisco specific activity and activation state did not decrease in depodded plants.
Intervention effect Shading restored the gas-exchange photosynthetic rate in depodded plants.
Intervention effect Shading restored CO2-limited photosynthesis per Rubisco protein to the level of plants with pods.
Intervention effect Shading decreased starch accumulation.
Mechanism The authors attributed photosynthetic suppression in depodded beans to hindered CO2 diffusion from chloroplast starch accumulation.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Infection did not decrease photosynthesis in any fifth leaves versus controls.

Taxon: oatsAvena sativat0
Organ / stage: fifth leavese0
Interactor: Erysiphe graminis D.c. ex Merat f. sp. avenae MarchalBlumeria avenaet0pathogen
Outcome: rate of photosynthesise1
Direction: no decreasee0
Comparator: controlse0

Verbatim

e0
“no decrease in any of the fifth leaves relative to controls”
✓ located verbatim in the source · abstract, characters 434–493

e1
“rate of photosynthesis”
✓ located verbatim in the source · abstract, characters 361–383

t0
“oats exhibiting different levels of partial resistance to Erysiphe graminis D.c. ex Merat f. sp. avenae Marchal”
✓ located verbatim in the source · title, characters 34–145

Title

Respiration and photosynthesis in oats exhibiting different levels of partial resistance to Erysiphe graminis D.c. ex Merat f. sp. avenae Marchal

G. R. HAIGH; T. L. W. CARVER; A. P. GAY; et al. New Phytologist 1991. doi:10.1111/j.1469-8137.1991.tb01016.x

Other claims from this paper (9)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The decrease in photosynthesis during chilling in the light was not prominent for the initial 2 h.

Taxon: cucumberCucumis sativuse1
Treatment: chilling in the lighte0
Outcome: Decrease in photosynthesise0
Direction: not prominente0

Not reportedComparator

Verbatim

e0
“Decrease in photosynthesis was not prominent for the initial 2 h of chilling in the light or 12 h of chilling in the dark, but was manifested as an abrupt drop thereafter”
✓ located verbatim in the source · abstract, characters 546–716

e1
“using leaf discs taken from chilled cucumber ( Cucumis sativus L.) plants”
✓ located verbatim in the source · abstract, characters 187–260

Title

A comparative study on the effect of chilling treatment in the light and in the dark on subsequent photosynthesis in cucumber

Sung-Soo Jun; Jong Min Kim; Chin Bum Lee Australian Journal of Plant Physiology 2001. doi:10.1071/pp00087

Other claims from this paper (17)

Intervention effect Chilling in the light inhibited photosynthesis faster than chilling in the dark.
Intervention effect Chilling in the light for 4 h caused about 50% inhibition of O2 evolution.
Intervention effect Chilling in the light for 6 h caused about 90% inhibition of O2 evolution.
Intervention effect Chilling in the dark for 24 h caused about 50% inhibition of O2 evolution.
Intervention effect Chilling in the dark for 48 h caused about 90% inhibition of O2 evolution.
Intervention effect Light chilling caused no decline in the Fv/Fm ratio after dark adaptation.
Observation Chilling did not significantly change initial fluorescence (Fo) or Fv/Fm.
Observation Chilling produced a notable change in fluorescence quenching parameters.
Intervention effect Chloroplasts from 4-h light-chilled plants showed roughly 50% reduction in CO2 fixation.
Intervention effect Chloroplasts from 24-h dark-chilled plants showed roughly 50% reduction in CO2 fixation.
Intervention effect Reconstituted chloroplasts from light-chilled plants showed damage in thylakoids.
Intervention effect Stroma from dark-chilled plants was less functional.
Intervention effect Electron transport was hampered only in light-chilled plants, with lesions mostly in photosystem I.
Intervention effect Dark-chilled chloroplasts showed changes in metabolite distribution, more substantial than in light-chilled chloroplasts.
Mechanism The authors suggest that light chilling mainly interferes with thylakoid function.
Mechanism The authors suggest that dark chilling mainly affects stromal function.
Mechanism The authors infer that stromal enzymes were affected in dark-chilled chloroplasts.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Photosynthesis of grapevine did not decrease much under drought.

Taxon: grapevineVitise1
Treatment: droughte2
Outcome: Photosynthesise2
Direction: did not decrease very muche2

Verbatim

e1
“In both grapevine varieties, early drought decreased leaf conductance and transpiration under both CATA and CETE conditions and more markedly in +M plants”
✓ located verbatim in the source · abstract, characters 1276–1430

e2
“Photosynthesis did not decrease very much, so the instantaneous water use efficiency (WUE) increased, especially in drought +M plants under CETE conditions”
✓ located verbatim in the source · abstract, characters 1432–1587

Title

Arbuscular Mycorrhizal Fungi Improve the Performance of Tempranillo and Cabernet Sauvignon Facing Water Deficit under Current and Future Climatic Conditions

Daria Kozikova; Inmaculada Pascual; Nieves Goicoechea Plants 2024. doi:10.3390/plants13081155

Other claims from this paper (9)

Intervention effect Early drought decreased leaf conductance and transpiration in grapevine under CATA and CETE conditions.
Intervention effect Decreases in leaf conductance and transpiration under early drought were more marked in AMF-inoculated grapevine.
Intervention effect Instantaneous water use efficiency of AMF-inoculated grapevine under drought increased under CETE conditions.
Association The WUE increase was associated with a lower intercellular-to-atmospheric CO2 concentration ratio in grapevine.
Association The WUE increase was associated with reduced plant hydraulic conductance in grapevine.
Intervention effect Mycorrhization increased stomatal density in Tempranillo under CETE conditions and water deficit.
Intervention effect Mycorrhization decreased stomatal density in Cabernet Sauvignon under CETE conditions and water deficit.
Intervention effect Mycorrhization gave smaller stomata in Cabernet Sauvignon under CETE conditions and water deficit.
Mechanism The interaction of rootstock with AMF is a key factor in grapevine acclimation to water deficit.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Infection generally did not decrease photosynthesis, except in second leaves of one genotype.

Taxon: oatsAvena sativat0
Organ / stage: second leavese0
Interactor: Erysiphe graminis D.c. ex Merat f. sp. avenae MarchalBlumeria avenaet0pathogen
Outcome: rate of photosynthesise0
Direction: no decreasee0

Verbatim

e0
“There was no decrease in the rate of photosynthesis, except in the second leaves of one genotype”
✓ located verbatim in the source · abstract, characters 332–428

t0
“oats exhibiting different levels of partial resistance to Erysiphe graminis D.c. ex Merat f. sp. avenae Marchal”
✓ located verbatim in the source · title, characters 34–145

Title

Respiration and photosynthesis in oats exhibiting different levels of partial resistance to Erysiphe graminis D.c. ex Merat f. sp. avenae Marchal

G. R. HAIGH; T. L. W. CARVER; A. P. GAY; et al. New Phytologist 1991. doi:10.1111/j.1469-8137.1991.tb01016.x

Other claims from this paper (9)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Increasing salinity did not decrease photosynthesis in ammonium-fed sunflower.

Taxon: sunflowerHelianthus annuust0
Treatment: increase in salinisatione0
Outcome: photosynthesis ratee0
Direction: note0

Not reportedComparator

Verbatim

e0
“with increase in salinisation the photosynthesis rate decreased in NO 3 ‐ ‐supplied plants, but not in those given NH 4 +”
✓ located verbatim in the source · abstract, characters 1185–1306

t0
“sunflower (Helianthus annum L.)”
✓ located verbatim in the source · title, characters 110–141

Title

Interactive effect of salt (NaCl) and nitrogen form on growth, water relations and photosynthetic capacity of sunflower (Helianthus annum L.)

M. ASHRAF Annals of Applied Biology 1999. doi:10.1111/j.1744-7348.1999.tb00881.x

Other claims from this paper (10)

Intervention effect Under nonsaline conditions nitrate-fed sunflower had greater shoot and root fresh weight and leaf area than ammonium-fed plants.
Intervention effect NaCl inhibited growth more in nitrate-fed than ammonium-fed sunflower.
Intervention effect Leaf water and osmotic potentials were lower with ammonium than nitrate under saline and nonsaline conditions.
Intervention effect Leaf chlorophyll a and b concentrations were higher with ammonium than nitrate at the lower two salinity levels.
Intervention effect Nitrate-fed sunflower had higher photosynthesis than ammonium-fed plants without salinity.
Intervention effect Increasing salinity decreased photosynthesis in nitrate-fed sunflower.
Intervention effect Salinity significantly increased transpiration in nitrate-fed sunflower.
Intervention effect Under nonsaline conditions stomatal conductance was higher with nitrate than ammonium.
Observation Nitrate-fed sunflower had better water-use efficiency than ammonium-fed plants without salinity but worse efficiency with salinity.
Intervention effect Nitrogen form and NaCl did not affect relative intercellular CO2 concentration.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Six species showed almost no photosynthesis decrease even at pH 2.5.

Taxon: オオイヌタデe0
Treatment: pH 2.5e0
Outcome: 光合成速度e1
Direction: ほとんど低下しなかったe0

Not reportedComparator

Verbatim

e0
“pH 2.5でもほとんど低下しなかったオオイヌタデ, シロザ, メヒシバ, ソバ, イネおよびトールフェスク”
✓ located verbatim in the source · abstract, characters 256–310

e1
“人工酸性雨のpHと光合成速度の変化との関係”
✓ located verbatim in the source · abstract, characters 142–163

Title

Effect of Simulated Acid Rain on the Physiological Activities and Chlorophyll Content of Leaves in Some Weeds and Crops

Mitsumasa Satoh Journal of Weed Science and Technology 1997. doi:10.3719/weed.41.310

Other claims from this paper (7)

Intervention effect At pH 3.0 photosynthesis fell significantly in radish and common bean.
Intervention effect At pH 2.5 photosynthesis fell significantly in fleabane and white clover.
Intervention effect Leaf respiration increased in most species compared with controls.
Intervention effect Acid rain spraying caused little change in stomatal conductance in four measured species.
Association Leaf chlorophyll a and b tended to decline as acid rain pH fell.
Intervention effect At pH 2.5 chlorophyll content fell over 10% in all species except crabgrass and tall fescue.
Association Relative chlorophyll a content and relative photosynthetic rate had a linear regression relationship.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

The rate of photosynthesis in spinach did not decrease until leaf water potential fell below -1.0 MPa in short- and long-term water stress.

Taxon: Spinacia oleraceaSpinacia oleraceae0
Outcome: rate of photosynthesise1
Qualifier: until leaf water potential decreased belowe1

Verbatim

e0
“photosynthetic carbon metabolism in spinach ( Spinacia oleracea L.)”
✓ located verbatim in the source · abstract, characters 40–107

e1
“the rate of photosynthesis in saturating CO 2 did not decrease until leaf water potential decreased below”
✓ located verbatim in the source · abstract, characters 411–516

Title

Comparison of the effect of rapidly and gradually developing water‐stress on carbohydrate metabolism in spinach leaves

R. ZRENNER; M. STITT Plant Cell & Environment 1991. doi:10.1111/j.1365-3040.1991.tb00963.x

Other claims from this paper (7)

Intervention effect At smaller water deficits, starch synthesis in spinach leaves was inhibited.
Intervention effect At smaller water deficits, sucrose synthesis in spinach leaves remained constant or increased.
Intervention effect Water-stressed spinach leaves had a two- to three-fold higher sucrose content at the end of the night than non-stressed leaves.
Intervention effect Water-stressed spinach leaves contained less starch than non-stressed leaves.
Observation In spinach leaves held in the dark, starch was not mobilized until sucrose had decreased to a low level.
Observation In water-stressed spinach leaves, starch mobilization began at a two-fold higher sucrose content.
Association Water stress was accompanied by an increase in activation of sucrose-phosphate synthase in spinach leaves.

“decrease of the photosynthesis”

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