Search claims · PlantClaims

Mechanismauthor interpretationoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Authors attribute reduced photosynthesis under sink limitation to inactivated carbohydrate metabolism rather than reduced electron transport.

Taxon: SoybeanGlycine maxt0
Outcome: decrease in photosynthetic activitye0
Direction: decreasee0
Qualifier: inactivation of photosynthetic carbohydrate metabolisme0

Verbatim

e0
“under the sink limit condition, the significant decrease in photosynthetic activity was due to inactivation of photosynthetic carbohydrate metabolism rather than to a decline in photoelectron transport.”
✓ located verbatim in the source · abstract, characters 1421–1623

t0
“Soybean”
✓ located verbatim in the source · title, characters 108–115

Title

Photosynthetic Electron Transport and Carbon Metabolism during Altered Source/Sink Balance in Single-Rooted Soybean Leaves

Shinichi Sawada; Yasuhide Hasegawa; Minobu Kasai; et al. Plant and Cell Physiology 1989. doi:10.1093/oxfordjournals.pcp.a077795

Other claims from this paper (8)

Intervention effect Continuous light reduced photosynthetic rate to 54% of the standard condition.
Association The photosynthetic decrease was associated with increased resistance to CO2 movement in mesophyll.
Intervention effect Continuous light increased leaf NADPH, ATP and ATP:ADP ratio.
Intervention effect Ribulose 1,5-bisphosphate rose to 460% of control in treated leaves.
Intervention effect Dihydroxyacetone phosphate rose to 160% of control.
Intervention effect 3-phosphoglycerate fell to 80% of control.
Intervention effect Most other phosphorylated intermediates increased by 110% to 200%, apart from fructose 6-phosphate and ADP glucose.
Mechanism Authors suggest accumulated phosphorylated intermediates limit stromal Pj, reducing Rubisco activity and photosynthesis.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Ozone exacerbated the decline in rubisco activity and produced a significantly greater decrease following the simulated inversion than in controls.

Taxon: Solanum tuberosumSolanum tuberosume0
Material: cv Norlande0
Treatment: O/sub 3/e1
Outcome: rubisco activitye0
Direction: significantly greater decreasee1
Comparator: control plantse2
Setting: controlled environment chambere3

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

e1
“O/sub 3/ exacerbated the decline and produced a significantly greater decrease following the inversion”
✓ located verbatim in the source · abstract, characters 633–735

e2
“These parameters declined in both ozone and control plants”
✓ located verbatim in the source · abstract, characters 533–591

e3
“for 4 days in a controlled environment chamber”
✓ located verbatim in the source · abstract, characters 247–293

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)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Net photosynthesis of Arachis hypogaea declined by -51.1% relative to control plants after ethylene exposure.

Taxon: Arachis hypogaeaArachis hypogaeae2
Treatment: ethylenee0
Outcome: net photosynthesise0
Direction: decreaseinferrede2
Value: -51.1%e2
Comparator: control plantse2

Verbatim

e0
“The responsiveness to ethylene of net photosynthesis and stomatal conductance to water vapor in intact plants was investigated in 13 herbaceous species representing seven plant families”
✓ located verbatim in the source · abstract, characters 0–185

e2
“As a function of the rate in control plants, the responses were most pronounced and statistically significant in Arachis hypogaea (-51.1%), Gossypium hirsutum (-31.7%), Glycine max (-24.8%), Cucurbita pepo (-20.4%), Phaseolus vulgaris (-18.4%), Setaria viridis (-17.5%), and Raphanus sativus (-4.4%)”
✓ located verbatim in the source · abstract, characters 894–1193

Title

The Response of Foliar Gas Exchange to Exogenously Applied

George Taylor; Carla A. Gunderson 1986

Other claims from this paper (18)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Net photosynthesis of Gossypium hirsutum declined by -31.7% relative to control plants after ethylene exposure.

Taxon: Gossypium hirsutumGossypium hirsutume2
Treatment: ethylenee0
Outcome: net photosynthesise0
Direction: decreaseinferrede2
Value: -31.7%e2
Comparator: control plantse2

Verbatim

e0
“The responsiveness to ethylene of net photosynthesis and stomatal conductance to water vapor in intact plants was investigated in 13 herbaceous species representing seven plant families”
✓ located verbatim in the source · abstract, characters 0–185

e2
“As a function of the rate in control plants, the responses were most pronounced and statistically significant in Arachis hypogaea (-51.1%), Gossypium hirsutum (-31.7%), Glycine max (-24.8%), Cucurbita pepo (-20.4%), Phaseolus vulgaris (-18.4%), Setaria viridis (-17.5%), and Raphanus sativus (-4.4%)”
✓ located verbatim in the source · abstract, characters 894–1193

Title

The Response of Foliar Gas Exchange to Exogenously Applied

George Taylor; Carla A. Gunderson 1986

Other claims from this paper (18)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Net photosynthesis of Glycine max declined by -24.8% relative to control plants after ethylene exposure.

Taxon: Glycine maxGlycine maxe2
Treatment: ethylenee0
Outcome: net photosynthesise0
Direction: decreaseinferrede2
Value: -24.8%e2
Comparator: control plantse2

Verbatim

e0
“The responsiveness to ethylene of net photosynthesis and stomatal conductance to water vapor in intact plants was investigated in 13 herbaceous species representing seven plant families”
✓ located verbatim in the source · abstract, characters 0–185

e2
“As a function of the rate in control plants, the responses were most pronounced and statistically significant in Arachis hypogaea (-51.1%), Gossypium hirsutum (-31.7%), Glycine max (-24.8%), Cucurbita pepo (-20.4%), Phaseolus vulgaris (-18.4%), Setaria viridis (-17.5%), and Raphanus sativus (-4.4%)”
✓ located verbatim in the source · abstract, characters 894–1193

Title

The Response of Foliar Gas Exchange to Exogenously Applied

George Taylor; Carla A. Gunderson 1986

Other claims from this paper (18)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Net photosynthesis of Cucurbita pepo declined by -20.4% relative to control plants after ethylene exposure.

Taxon: Cucurbita pepoCucurbita pepoe2
Treatment: ethylenee0
Outcome: net photosynthesise0
Direction: decreaseinferrede2
Value: -20.4%e2
Comparator: control plantse2

Verbatim

e0
“The responsiveness to ethylene of net photosynthesis and stomatal conductance to water vapor in intact plants was investigated in 13 herbaceous species representing seven plant families”
✓ located verbatim in the source · abstract, characters 0–185

e2
“As a function of the rate in control plants, the responses were most pronounced and statistically significant in Arachis hypogaea (-51.1%), Gossypium hirsutum (-31.7%), Glycine max (-24.8%), Cucurbita pepo (-20.4%), Phaseolus vulgaris (-18.4%), Setaria viridis (-17.5%), and Raphanus sativus (-4.4%)”
✓ located verbatim in the source · abstract, characters 894–1193

Title

The Response of Foliar Gas Exchange to Exogenously Applied

George Taylor; Carla A. Gunderson 1986

Other claims from this paper (18)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Net photosynthesis of Phaseolus vulgaris declined by -18.4% relative to control plants after ethylene exposure.

Taxon: Phaseolus vulgarisPhaseolus vulgarise2
Treatment: ethylenee0
Outcome: net photosynthesise0
Direction: decreaseinferrede2
Value: -18.4%e2
Comparator: control plantse2

Verbatim

e0
“The responsiveness to ethylene of net photosynthesis and stomatal conductance to water vapor in intact plants was investigated in 13 herbaceous species representing seven plant families”
✓ located verbatim in the source · abstract, characters 0–185

e2
“As a function of the rate in control plants, the responses were most pronounced and statistically significant in Arachis hypogaea (-51.1%), Gossypium hirsutum (-31.7%), Glycine max (-24.8%), Cucurbita pepo (-20.4%), Phaseolus vulgaris (-18.4%), Setaria viridis (-17.5%), and Raphanus sativus (-4.4%)”
✓ located verbatim in the source · abstract, characters 894–1193

Title

The Response of Foliar Gas Exchange to Exogenously Applied

George Taylor; Carla A. Gunderson 1986

Other claims from this paper (18)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Net photosynthesis of Setaria viridis declined by -17.5% relative to control plants after ethylene exposure.

Taxon: Setaria viridisSetaria viridise2
Treatment: ethylenee0
Outcome: net photosynthesise0
Direction: decreaseinferrede2
Value: -17.5%e2
Comparator: control plantse2

Verbatim

e0
“The responsiveness to ethylene of net photosynthesis and stomatal conductance to water vapor in intact plants was investigated in 13 herbaceous species representing seven plant families”
✓ located verbatim in the source · abstract, characters 0–185

e2
“As a function of the rate in control plants, the responses were most pronounced and statistically significant in Arachis hypogaea (-51.1%), Gossypium hirsutum (-31.7%), Glycine max (-24.8%), Cucurbita pepo (-20.4%), Phaseolus vulgaris (-18.4%), Setaria viridis (-17.5%), and Raphanus sativus (-4.4%)”
✓ located verbatim in the source · abstract, characters 894–1193

Title

The Response of Foliar Gas Exchange to Exogenously Applied

George Taylor; Carla A. Gunderson 1986

Other claims from this paper (18)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Net photosynthesis of Raphanus sativus declined by -4.4% relative to control plants after ethylene exposure.

Taxon: Raphanus sativusRaphanus sativuse2
Treatment: ethylenee0
Outcome: net photosynthesise0
Direction: decreaseinferrede2
Value: -4.4%e2
Comparator: control plantse2

Verbatim

e0
“The responsiveness to ethylene of net photosynthesis and stomatal conductance to water vapor in intact plants was investigated in 13 herbaceous species representing seven plant families”
✓ located verbatim in the source · abstract, characters 0–185

e2
“As a function of the rate in control plants, the responses were most pronounced and statistically significant in Arachis hypogaea (-51.1%), Gossypium hirsutum (-31.7%), Glycine max (-24.8%), Cucurbita pepo (-20.4%), Phaseolus vulgaris (-18.4%), Setaria viridis (-17.5%), and Raphanus sativus (-4.4%)”
✓ located verbatim in the source · abstract, characters 894–1193

Title

The Response of Foliar Gas Exchange to Exogenously Applied

George Taylor; Carla A. Gunderson 1986

Other claims from this paper (18)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

At light saturation, maximum CO2 fixation declined significantly over H2S exposure, by over 70% after 14 days.

Taxon: SpinachSpinacia oleraceat0
Treatment: H 2 S exposuree0
Outcome: maximum rate of CO 2 fixation at light saturatione0
Direction: decreasede0
Value: more than 70%e0
Qualifier: after 14 dayse0

Not reportedComparator

Verbatim

e0
“the maximum rate of CO 2 fixation at light saturation decreased significantly with time in the H 2 S‐exposed plants; after 14 days of H 2 S exposure a decrease of more than 70% was noted.”
✓ located verbatim in the source · abstract, characters 1024–1211

t0
“Spinach”
✓ located verbatim in the source · abstract, characters 0–7

Title

Effect of long‐term H2S fumigation on photosynthesis in spinach. Correlation between CO2 fixation and chlorophyll a fluorescence

F. M. Maas; E. N. van Loo; P. R. van Hasselt Physiologia Plantarum 1988. doi:10.1111/j.1399-3054.1988.tb06625.x

Other claims from this paper (7)

Intervention effect H2S fumigation did not affect dark respiration.
Observation Photosynthetic CO2 fixation declined with time in both control and fumigated spinach.
Intervention effect After 14 days, fumigated plants had 23% lower CO2 fixation than controls.
Association H2S-related CO2 fixation decline accompanied decreased fluorescence quenching.
Intervention effect The difference between maximum and steady-state fluorescence decreased.
Intervention effect Chlorophyll content increased slightly during fumigation.
Intervention effect Prolonged H2S fumigation reduced the initial CO2 fixation increase with rising light intensity.

“decrease of the photosynthesis”

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