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Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

The authors suggest glasshouse conditions might decrease the photosynthesis rate because of both lower PPFD and reflectance.

Treatment
glasshouse conditionse1
Outcome
photosynthesis ratee1
Qualifier
due to both PPFD decrease and reflectancee1

Not reportedTaxon

Verbatim

e1

“glasshouse conditions might decrease the photosynthesis rate due to both PPFD decrease and reflectance”

✓ located verbatim in the source · abstract, characters 1405–1507

Title

Characterization of the Spectrum of Solar Irradiance under Different Crop Protection Coverings in Mediterranean Conditions and Effect on the Interception of Photosynthetically Active Radiation

Gonzalo GURREA-YSASI; Vicente BLANCA-GIMÉNEZ; Inmaculada C. FITA; et al. Notulae Botanicae Horti Agrobotanici Cluj-Napoca 2018. doi:10.15835/nbha47111439

Other claims from this paper (5)
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors suggest that the decrease in tomato growth under ammonium or urea supply may be related principally to inhibition of net photosynthesis activity.

Treatment
ammonium or urea supplye1
Outcome
decrease in tomato growthe1
Qualifier
inhibition of net photosynthesis activitye1

Verbatim

e1

“the adverse decrease in tomato growth under ammonium or urea supply may be related principally to inhibition of net photosynthesis activity”

✓ located verbatim in the source · abstract, characters 841–980

Title

Photosynthesis sensitivity to NH4+-N change with nitrogen fertilizer type

A. Nasraoui-Hajaji; H. Gouia Plant Soil and Environment 2014. doi:10.17221/7418-pse

Other claims from this paper (6)
Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The authors attributed the long-term photosynthesis decline to both stomatal and non-stomatal limitation, including lower photosystem II activity.

Taxon
Phragmites australisPhragmites australist0
Outcome
decrease of photosynthesis ratee0
Qualifier
non-stomotal limitation and stomotal limitatione0

Verbatim

e0

“the non-stomotal limitation and stomotal limitation all lead to the decrease of photosynthesis rate after long-term drought.The non-stomotal limitation includes the decrease of the activity of photosystem II.”

✓ located verbatim in the source · abstract, characters 962–1170
t0

“Phragmites australis”

✓ located verbatim in the source · title, characters 84–104

Title

Mechanism of Influence of Drought Stress on Photosynthetic Physiological Ecology of Phragmites australis Leaves in Momoge Wetlands

Deng Chun Shidi kexue 2012

Other claims from this paper (7)
Observationobservedreview summarynegativebasis n/a

Claim · model-written summary

Stress is usually perceived in plants as a decrease in photosynthesis and growth.

Taxon
Plantt0
Treatment
stresse0
Outcome
photosynthesis and growthe0
Direction
decreasee0

Verbatim

t0

“Plant Responses to Drought, Acclimation, and Stress Tolerance”

✓ located verbatim in the source · title, characters 0–61
e0

“the effect of stress is usually perceived as a decrease in photosynthesis and growth”

✓ located verbatim in the source · abstract, characters 26–110

Title

Plant Responses to Drought, Acclimation, and Stress Tolerance

I. Yordanov; V. Velikova; T. Tsonev Photosynthetica 2000. doi:10.1023/a:1007201411474

Other claims from this paper (2)
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors conclude that stomatal limitation caused by osmotic stress is the dominating factor in the decrease of photosynthesis in maize seedlings when the NaCl stress period is short.

Taxon
Maize seedlingsZea mayse0
Outcome
photosynthesis' decreasee1
Qualifier
stomatal limitation caused by osmotic stresse1

Verbatim

e0

“Maize seedlings were treated with 100 NaCl mmol/L”

✓ located verbatim in the source · abstract, characters 0–49
e1

“the stomatal limitation caused by osmotic stress is dominating factor of the photosynthesis' decrease when the stress period is short”

✓ located verbatim in the source · abstract, characters 590–723

Title

The Possible Mechanisms of NaCl Inhibit Photosythesis of Maize Seedlings

Guo Wei Shu 2001

Other claims from this paper (11)
Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Stomatal limitation to CO2 diffusion is the main reason for the decrease in photosynthesis.

Taxon
Setaria sphacelata var. splendidaSetaria sphacelata var. splendidae1
Outcome
decrease in photosynthesise2
Qualifier
stomatal limitation to CO 2 diffusion is the main reasone2

Verbatim

e1

“A comparison of the effects of a rapid and a slowly imposed water deficit on photosynthesis was performed in Setaria sphacelata var. splendida (Stapf) Clayton”

✓ located verbatim in the source · abstract, characters 0–158
e2

“stomatal limitation to CO 2 diffusion is the main reason for the decrease in photosynthesis”

✓ located verbatim in the source · abstract, characters 2164–2255

Title

Photosynthesis in the water‐stressed C4grassSetaria sphacelatais mainly limited by stomata with both rapidly and slowly imposed water deficits

Jorge Marques Da Silva; Maria Celeste Arrabaça Physiologia Plantarum 2004. doi:10.1111/j.1399-3054.2004.00328.x

Other claims from this paper (9)
Mechanismauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Non-stomatal factors were responsible for the decrease in potato crop GPP during drought.

Taxon
potato cropSolanum tuberosume0
Outcome
decrease in potato crop GPPe0
Qualifier
non-stomatal factorse0

Verbatim

e0

“non-stomatal factors were responsible for the decrease in potato crop GPP during drought”

✓ located verbatim in the source · abstract, characters 1633–1721

Title

Proofs of non-stomatal limitations of potato photosynthesis during drought by using in-situ eddy covariance data

Quentin Beauclaire; Louis Gourlez de la Motte; Heinesch Bernard; et al. 2020. doi:10.5194/egusphere-egu2020-5183

Other claims from this paper (7)
Mechanismauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

The decrease in photosynthetic rate reduced the ability of green onion to assimilate nutrients.

Taxon
Green Oniont0
Outcome
ability to assimilate nutrientse6
Qualifier
decrease in Pne6

Verbatim

t0

“Green Onion (Allium fistulosum L.)”

✓ located verbatim in the source · title, characters 116–150
e6

“The resulting decrease in Pn reduced the plant’s ability to assimilate nutrients”

✓ located verbatim in the source · abstract, characters 1368–1448

Title

Effects of Chloro-Organophosphate Ester on Photosynthesis, Chlorophyll Fluorescence, Antioxidation and Nutrients of Green Onion (Allium fistulosum L.)

Song Gao; Yuwei Guo; Yuwei Guo; et al. Agronomy 2025. doi:10.3390/agronomy16010007

Other claims from this paper (5)
Mechanismauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Authors infer that altered photosynthesis delays young spike growth and lowers yield.

Treatment
low-temperature stresse0
Outcome
decrease in yielde0
Qualifier
delaying young spike growthe0

Verbatim

e0

“low-temperature stress during the anther differentiation period alters the photosynthetic activity involved in the accumulation of dry matter in wheat, which leads to delaying young spike growth, especially for upper spikelets, and ultimately in a decrease in yield”

✓ located verbatim in the source · abstract, characters 1492–1757

Title

Effects of Low-Temperature Stress during the Anther Differentiation Period on Winter Wheat Photosynthetic Performance and Spike-Setting Characteristics

Yan Zhang; Lvzhou Liu; Xiang Chen; et al. Plants 2022. doi:10.3390/plants11030389

Other claims from this paper (12)
Mechanismhypothesisoriginal resultnegativebasis n/a

Claim · model-written summary

The decrease in non-cyclic electron transport may limit the rate of photosynthesis in senescing Phaseolus vulgaris leaves.

Taxon
Phaseolus vulgarisPhaseolus vulgarise0
Organ / stage
senescing leavese6
Outcome
rate of photosynthesise6
Qualifier
decrease in rate of non-cyclic electron transporte6

Verbatim

e0

“primary leaves of Phaseolus vulgaris”

✓ located verbatim in the source · abstract, characters 87–123
e6

“The decrease in rate of non-cyclic electron transport may be important in limiting the rate of photosynthesis in the senescing leaves”

✓ located verbatim in the source · abstract, characters 953–1086

Title

Photosynthetic Electron Transport During Senescence of the Primary Leaves ofPhaseolus vulgarisL.: I. NON-CYCLIC ELECTRON TRANSPORT

G. I. JENKINS; H. W. WOOLHOUSE Journal of Experimental Botany 1981. doi:10.1093/jxb/32.3.467

Other claims from this paper (4)
Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

Decreased leaf conductance induced by high VPD is suggested to signal a decrease in soybean photosynthesis at CO2 saturation by a mechanism not related to mesophyll water deficit

Taxon
soybeansGlycine maxe0
Outcome
rate of photosynthesis at carbon dioxide saturatione0
Qualifier
a mechanism that was not related to a water deficit in the mesophylle0

Verbatim

e0

“It is suggested that in soybeans decreased leaf conductance induced by high VPD provided a signal which decreased the rate of photosynthesis at carbon dioxide saturation by a mechanism that was not related to a water deficit in the mesophyll”

✓ located verbatim in the source · abstract, characters 1409–1650

Title

In-Phase Cycling of Photosynthesis and Conductance at Saturating Carbon Dioxide Pressure Induced by Increases in Water Vapour Pressure Deficit

JAMES A. BUNCE Journal of Experimental Botany 1987. doi:10.1093/jxb/38.9.1413

Other claims from this paper (10)
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The decrease in rubisco activity is most likely due to a decrease in available protein rather than a decrease in the percentage of rubisco activated in vivo.

Taxon
Solanum tuberosumSolanum tuberosume0
Outcome
decrease in activitye6
Qualifier
decrease in available proteine6

Verbatim

e0

“The effect of O/sub 3/ on rubisco activity in Solanum tuberosum L. cv Norland foliage was studied”

✓ located verbatim in the source · abstract, characters 0–97
e6

“The decrease in activity is most likely due to a decrease in available protein”

✓ located verbatim in the source · abstract, characters 944–1022

Title

Decline of rubisco activity and net photosynthesis in ozone-treated potato foliage. [Solanum tuberosum]

Dann; Eva J. Pell Plant Physiol., Suppl.; (United States) 1987

Other claims from this paper (5)
Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

End-product inhibition may explain the decrease in photosynthesis of Encelia farinosa during the day under doubled CO2.

Taxon
Encelia farinosaEncelia farinosae0
Outcome
The decrease during the day under the doubled CO2 concentratione3
Qualifier
end-product inhibitione3

Verbatim

e0

“Changes in photosynthesis (A) and carbohydrate partitioning were studied for Encelia farinosa”

✓ located verbatim in the source · abstract, characters 0–93
e3

“The decrease during the day under the doubled CO2 concentration may represent end-product inhibition”

✓ located verbatim in the source · abstract, characters 485–585

Title

Photosynthesis and Carbohydrate Partitioning for the C3 Desert Shrub Encelia farinosa under Current and Doubled CO2 Concentrations

H. Zhang; P. S. Nobel PLANT PHYSIOLOGY 1996. doi:10.1104/pp.110.4.1361

Other claims from this paper (8)
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The decrease in photosynthetic rates of unburned Quercus ilex leaves in late July resulted from reduced stomatal conductance.

Taxon
Quercus ilexQuercus ilext0
Outcome
decrease in photosynthetic rates of unburned leavese1
Qualifier
reduced stomatal conductancee1

Verbatim

t0

“Photosynthesis and photoprotection in Quercus ilex resprouts after fire”

✓ located verbatim in the source · title, characters 0–71
e1

“The decrease in photosynthetic rates of unburned leaves in late July was the result of reduced stomatal conductance”

✓ located verbatim in the source · abstract, characters 1630–1745

Title

Photosynthesis and photoprotection in Quercus ilex resprouts after fire

I. Fleck; K. P. Hogan; L. Llorens; et al. Tree Physiology 1998. doi:10.1093/treephys/18.8-9.607

Other claims from this paper (11)
Intervention effectauthor interpretationreview summarynegativebasis n/a

Claim · model-written summary

Bicarbonate depletion reduces photosystem II activity, which readdition restores.

Taxon
plantt0
Treatment
Depletion of bicarbonatee0
Outcome
activity of photosystem IIe0
Direction
strong decreasee0
Comparator
readdition of bicarbonatee0

Verbatim

e0

“Depletion of bicarbonate (carbon dioxide) from oxygenic cells or organelles not only causes cessation of carbon dioxide fixation, but also a strong decrease in the activity of photosystem II; the photosystem II activity can be restored by readdition of bicarbonate.”

✓ located verbatim in the source · abstract, characters 0–265
t0

“plant photosynthesis”

✓ located verbatim in the source · title, characters 82–102

Title

Role of bicarbonate in photosystem II, the water‐plastoquinone oxido‐reductase of plant photosynthesis

Jack J. S. Van Rensen; Chunhe Xu; Govindjee Physiologia Plantarum 1999. doi:10.1034/j.1399-3054.1999.105326.x

Other claims from this paper (1)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Photosynthesis of untreated apple leaves had decreased after full expansion and continued to decrease during senescence.

Taxon
untreated apple leavese4
Outcome
photosynthesise4
Direction
had decreasede4
Qualifier
when the leaves were fully expanded and continued to decrease during senescencee4

Verbatim

e4

“The rates of photosynthesis of untreated apple leaves reached a maximum of 14.95 mg. CO 2 /dm. 2 × hr. when the leaves were 92 per cent of full leaf expansion but had decreased when the leaves were fully expanded and continued to decrease during senescence”

✓ located verbatim in the source · abstract, characters 890–1146

Title

EFFECTS OF RYANIA AND RYANODINE ON THE APPARENT PHOTOSYNTHESIS OF McINTOSH APPLE LEAVES

V. A. Helson Canadian Journal of Plant Science 1960. doi:10.4141/cjps60-032

Other claims from this paper (7)
Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

The decrease in photosynthetic fixation at the onset of water stress may be due more to stomatal restriction of gas exchange than to changes in enzyme levels.

Taxon
Hordeum vulgareHordeum vulgaree1
Outcome
photosynthetic fixatione3
Qualifier
restrictions in gaseous exchange by reduction of stomatal aperturee2

Verbatim

e1

“Hordeum vulgare L.”

✓ located verbatim in the source · abstract, characters 175–193
e2

“may be due less to changes in these enzyme levels than to restrictions in gaseous exchange by reduction of stomatal aperture”

✓ located verbatim in the source · abstract, characters 1130–1254
e3

“rapid decrease in photosynthetic fixation”

✓ located verbatim in the source · abstract, characters 1051–1092

Title

Effects of Mild Water Stress on Enzymes of Nitrate Assimilation and of the Carboxylative Phase of Photosynthesis in Barley1

R. C. Huffaker; T. Radin; G. E. Kleinkopf; et al. Crop Science 1970. doi:10.2135/cropsci1970.0011183x001000050003x

Other claims from this paper (7)

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