Search claims · PlantClaims

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Heat sensitivity in the light adapted state did not decrease.

Taxon: grapevineVitist0
Outcome: heat sensitivitye0
Direction: not decreasede0
Qualifier: light adapted statee0

Verbatim

e0
“the heat sensitivity was not decreased in light adapted state”
✓ located verbatim in the source · abstract, characters 1272–1333

t0
“grapevine leaf photosynthesis”
✓ located verbatim in the source · title, characters 20–49

Title

Heat acclimation of grapevine leaf photosynthesis: mezo- and macroclimatic aspects

Zsolt Zsófi; Gyula Váradi; Borbála Bálo; et al. Functional Plant Biology 2009. doi:10.1071/fp08200

Other claims from this paper (10)

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Protected spruce twigs showed no decrease in photosynthesis or transpiration over four weeks.

Taxon: spruce treesPiceae0
Organ / stage: Twigse0
Treatment: prevented from contact with the exhaust emissionse0
Outcome: photosynthetic or transpiration ratese0
Direction: did not show any decreasee0
Qualifier: within four weekse0

Verbatim

e0
“Twigs from exposed spruce trees, which had been prevented from contact with the exhaust emissions, did not show any decrease of photosynthetic or transpiration rates within four weeks.”
✓ located verbatim in the source · abstract, characters 230–414

Title

Independent photosynthetic response of exposed and unexposed twigs of the same spruce tree to car exhaust

A. Ziegler‐Jöns; H. Kammerbauer; S. Drenkard; et al. European Journal of Forest Pathology 1990. doi:10.1111/j.1439-0329.1990.tb01150.x

Other claims from this paper (2)

Observation Chlorophyll fluorescence in protected twigs was unaffected.
Observation Chlorophyll fluorescence was severely impaired in exhaust-exposed twigs.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Heavy water did not significantly decrease the on-line carbon isotope discrimination associated with photosynthesis in Xanthium strumarium.

Taxon: Xanthium strumarium L.Xanthium strumariume1
Treatment: heavy watere1
Outcome: on-line carbon isotope discrimination (Δ13C, or Δobs)e1
Direction: not significantly decreasede1

Not reportedComparator

Verbatim

e1
“Using 12C/13C stable isotope techniques and Xanthium strumarium L. leaves, we show that the on-line carbon isotope discrimination (Δ13C, or Δobs) associated with photosynthesis is not significantly decreased by heavy water”
✓ located verbatim in the source · abstract, characters 436–658

Title

On the effect of heavy water (D2O) on carbon isotope fractionation in photosynthesis

Guillaume Tcherkez; Graham D. Farquhar Functional Plant Biology 2008. doi:10.1071/fp07282

Other claims from this paper (4)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Striga infection did not decrease host photosynthesis at 67 or 79 days.

Taxon: Sorghum bicolor (L.) MoenchSorghum bicolort0
Treatment: S. hermonthica infectione0
Interactor: S. hermonthicaStriga hermonthicae0parasite
Outcome: host photo-synthesise0
Direction: did not decreasee0
Qualifier: 67 or 79 DASe0

Not reportedComparator

Verbatim

e0
“S. hermonthica infection did not decrease host photo-synthesis, transpiration and water use efficiency 67 or 79 DAS.”
✓ located verbatim in the source · abstract, characters 368–484

t0
“Sorghum bicolor (L.) Moench host”
✓ located verbatim in the source · abstract, characters 117–149

Title

The effect ofStriga hermonthica(Del.) Benth. infection on gas-exchange characteristics and yield of a sorghum host, measured in the field in Mali

Lawrence J. Clark; Keith G. Shawe; Gŕrard Hoffmann; et al. Journal of Experimental Botany 1994. doi:10.1093/jxb/45.2.281

Other claims from this paper (4)

Intervention effect Striga infection significantly reduced sorghum grain yield at harvest.
Intervention effect Striga infection significantly reduced sorghum straw yield at harvest.
Intervention effect Striga infection did not decrease host transpiration at 67 or 79 days.
Intervention effect Striga infection did not decrease host water use efficiency at 67 or 79 days.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Chlorina changes did not decrease photosynthetic potential or net photosynthetic productivity.

Taxon: linseedt0
Outcome: photosynthetic potential and the net productivity of photosynthesise0
Direction: did not lead to a decreasee0

Verbatim

e0
“These changes did not lead to a decrease in the photosynthetic potential and the net productivity of photosynthesis”
✓ located verbatim in the source · abstract, characters 1318–1433

t0
“linseed”
✓ located verbatim in the source · title, characters 134–141

Title

Features of the photosynthetic apparatus of chlorophyll-deficient mutants of various types and their impact on productivity traits in linseed

Іryna Poliakova; Viktoriia Kolesnyk; Оlena Boik&#; et al. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 2025. doi:10.11118/actaun.2025.005

Other claims from this paper (10)

Observation Xantha chloroplasts elongated and changed from oval to cylindrical.
Observation Xantha chlorophyll a and b content decreased, especially chlorophyll b.
Observation Xantha carotenoids decreased significantly, while remaining above chlorophyll b content.
Observation Xantha changes significantly decreased dry biomass growth.
Observation Chlorina chloroplasts elongated without a shape change.
Observation Chlorina chlorophyll a content decreased by 30%.
Observation Chlorina chlorophyll b content decreased by 45%.
Observation Chlorina carotenoid content decreased slightly to a level corresponding to chlorophyll b.
Method / resource Direct selection from chlorina yielded the highly productive variety Zolotistyi.
Observation Zolotistyi was not inferior to K-7487 for productivity, oil content, and oil yield per hectare.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Whole plant and single leaf shading produced the same photosynthetic decline.

Taxon: grasse0
Treatment: whole plant was shadede1
Outcome: decrease in photosynthesise1
Direction: unaffectede1
Comparator: only the leaf whose photosynthesis was measurede1

Verbatim

e0
“grass leaves”
✓ located verbatim in the source · abstract, characters 44–56

e1
“The decrease in photosynthesis was unaffected by whether the whole plant was shaded or only the leaf whose photosynthesis was measured.”
✓ located verbatim in the source · abstract, characters 253–388

Title

The Effect of Shading on the Photosynthetic Rate and Longevity of Grass Leaves

JANE WOLEDGE Annals of Botany 1972. doi:10.1093/oxfordjournals.aob.a084612

Other claims from this paper (5)

Intervention effect Severe shading accelerated age related loss of net photosynthesis.
Intervention effect Less severe shading did not affect the age related decline.
Association With leaf age, bright light photosynthesis fell faster than dim light photosynthesis.
Association Mesophyll and stomatal diffusion resistance rose with leaf age, with mesophyll rising faster.
Association Chlorophyll content fell only near leaf death.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Antimycin A did not decrease the Michaelis constant of ribulose 1,5-diphosphate carboxylase for bicarbonate.

Taxon: SpinachSpinacia oleraceat0
Treatment: Antimycin At0
Gene: ribulose 1,5-diphosphate carboxylasee0
Outcome: theMichaelis constant ofthechloroplast butnotofribulose 1,5-diphosphate carboxylasee0
Direction: butnote0

Not reportedComparator

Verbatim

e0
“decreased theMichaelis constant ofthechloroplast butnotofribulose 1,5-diphosphate carboxylase forbicarbonate”
✓ located verbatim in the source · abstract, characters 439–547

t0
“Antimycin A on Photosynthesis ofIntact Spinach”
✓ located verbatim in the source · title, characters 9–55

Title

Effect ofAntimycin A on Photosynthesis ofIntact Spinach Cbloroplasts

Marie‐Louise Champigny 1971

Other claims from this paper (9)

Intervention effect Antimycin A increased carbon dioxide fixation rate in intact spinach chloroplasts.
Intervention effect Antimycin A increased oxygen evolution rate in intact spinach chloroplasts.
Intervention effect Antimycin A increased inorganic phosphate esterification in intact spinach chloroplasts.
Association The stimulation was highest at saturating light intensity.
Association Stimulation was independent of bicarbonate concentration.
Intervention effect Antimycin A enhanced glycerate 3-phosphate synthesis.
Intervention effect Antimycin A decreased dihydroxyacetone phosphate.
Intervention effect Antimycin A decreased the chloroplast Michaelis constant for bicarbonate.
Mechanism The authors suggested antimycin A acts on the chloroplast outer envelope mechanism controlling carbon fixation.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Photosystem I electron transport showed no decrease in activity.

Taxon: spinachSpinacia oleraceae1
Organ / stage: chloroplastse1
Outcome: electron transport through photosystem Ie0
Direction: no decreasee0

Verbatim

e0
“electron transport through photosystem I operating on its own showed no decrease in activity”
✓ located verbatim in the source · abstract, characters 684–776

e1
“isolated spinach chloroplasts”
✓ located verbatim in the source · abstract, characters 203–232

Title

The effect of alpha terthienyl on photosynthesis

John Sinclair; Thor Arnason Canadian Journal of Botany 1982. doi:10.1139/b82-311

Other claims from this paper (2)

Intervention effect Alpha terthienyl plus near UV sensitized the Hill reaction in spinach chloroplasts.
Mechanism The authors infer inhibition near photosystem II and possibly in CO 2 fixation.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 10 days, lower inorganic phosphate did not alter photosynthesis, respiration, leaf growth, or adenylate concentration.

Taxon: Phaseolus vulgaris L.Phaseolus vulgarise0
Organ / stage: leafe0
Treatment: decrease in inorganic phosphate (Pi) contente0
Outcome: rates of photosynthesis (PN) and respiration (RD), leaf growth, and adenylate concentratione0
Direction: did not affecte0

Not reportedComparator

Verbatim

e0
“The decrease in inorganic phosphate (Pi) content of 10-d-old Phaseolus vulgaris L. plants did not affect rates of photosynthesis (PN) and respiration (RD), leaf growth, and adenylate concentration.”
✓ located verbatim in the source · abstract, characters 0–197