Search claims · PlantClaims

Mechanismobservedoriginal resultnegativemeasured

Claim · model-written summary

Changes in photosynthesis, respiration and triose-P utilization explain the biomass decrease.

Taxon: Lotus japonicusLotus japonicust0
Outcome: decrease in plant biomasse0
Qualifier: Changes in photosynthesis, respiration and triose-P utilizatione0

Verbatim

e0
“Changes in photosynthesis, respiration and triose-P utilization explain the decrease in plant biomass”
✓ located verbatim in the source · abstract, characters 1211–1312

t0
“Lotus japonicus”
✓ located verbatim in the source · title, characters 66–81

Title

The effects of limiting phosphate on photosynthesis and growth of Lotus japonicus

Rochelle Thuynsma; Aleysia Kleinert; Jens Kossmann; et al. South African Journal of Botany 2016. doi:10.1016/j.sajb.2016.03.001

Other claims from this paper (8)

Intervention effect Phosphate deprivation decreased plant biomass.
Intervention effect Phosphate deprivation decreased overall photosynthetic reactions.
Intervention effect Phosphate deprivation decreased the photosynthesis:respiration ratio.
Intervention effect Phosphate deprivation decreased triose-P utilization.
Intervention effect The root:shoot ratio showed no significant increase under phosphate deprivation.
Intervention effect Direct photosynthetic measurements showed no significant decrease under phosphate deprivation.
Intervention effect Direct respiration measurements showed no significant decrease under phosphate deprivation.
Mechanism Consistent allocation to roots and shoots could explain the root:shoot result.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Photosynthesis tended to decrease under N deficiency but contributed little to reduced carbon gain.

Taxon: grapevineVitist0
Treatment: N deficiencye0
Outcome: photosynthesis ratee0
Direction: decreasee0

Verbatim

e0
“photosynthesis rate tended to decrease under N deficiency over the season, it only poorly contributed to the reduction in C gain”
✓ located verbatim in the source · abstract, characters 2580–2708

t0
“grapevine”
✓ located verbatim in the source · title, characters 21–30

Title

Gradual responses of grapevine yield components and carbon status to nitrogen supply

Sylvain Vrignon-Brenas; Metay Aurélie; Leporatti Romain; et al. OENO One 2019. doi:10.20870/oeno-one.2019.53.2.2431

Other claims from this paper (13)

Intervention effect Under low nitrogen, SPAD declined from 31 to 16 in the first year.
Intervention effect In year two, SPAD was 40 at 160N and 19 at 0N after budburst.
Observation SPAD differences among nitrogen treatments persisted through 2018 harvest.
Intervention effect Berry number per inflorescence ranged from 180 at 80N to 34 at 0N.
Intervention effect Individual berry dry matter increased from 0.13 at 160N to 0.41 g at 0N.
Association Lower N reduced carbon gain mainly through leaf area reduction before flowering.
Association Whole-plant carbon growth fell with declining nitrogen status by -1.13% at harvest.
Association Shoot dry matter was inhibited before veraison by -1.81%.
Association Berry dry matter was lower by -0.80% at harvest.
Association Trunk dry matter was lower by -0.42% at harvest.
Association Root dry matter was lower by -0.84% at harvest.
Association Lower root starch reserves were associated with root dry matter reduction at harvest.
Intervention effect Starch reserves tended to be higher under organic than mineral nitrogen supply.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Photosynthesis decrease under elevated CO2 was associated with lower leaf Rubisco.

Taxon: riceOryza sativae1
Gene: Rubiscoe0
Outcome: decrease of photosynthesise0
Direction: decreasee0
Qualifier: elevated [CO2]e0

Verbatim

e0
“The decrease of photosynthesis by elevated [CO2] of plants was associated with decreased leaf Rubisco content and N content.”
✓ located verbatim in the source · abstract, characters 804–928

e1
“rice (Oryza sativa L.)”
✓ located verbatim in the source · abstract, characters 195–217

Title

Effect of panicle removal on photosynthetic acclimation under elevated CO₂ in rice

H. Shimono; K. Suzuki; K. Aoki; et al. Photosynthetica 2010. doi:10.1007/s11099-010-0070-z

Other claims from this paper (7)

Intervention effect Panicle removal alleviated decline in green leaf area, chlorophyll and Rubisco after heading.
Intervention effect Elevated CO2 decreased photosynthesis in panicle-removed rice.
Association The CO2 by panicle-removal interaction for photosynthesis was not significant.
Association Photosynthesis decrease under elevated CO2 was associated with lower leaf nitrogen.
Intervention effect Panicle removal increased leaf glucose.
Intervention effect Elevated CO2 increased leaf glucose.
Intervention effect Sink limitation improved leaf nitrogen status.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Photosynthesis decrease under elevated CO2 was associated with lower leaf nitrogen.

Taxon: riceOryza sativae1
Compound: Ne0
Outcome: decrease of photosynthesise0
Direction: decreasee0
Qualifier: elevated [CO2]e0

Verbatim

e0
“The decrease of photosynthesis by elevated [CO2] of plants was associated with decreased leaf Rubisco content and N content.”
✓ located verbatim in the source · abstract, characters 804–928

e1
“rice (Oryza sativa L.)”
✓ located verbatim in the source · abstract, characters 195–217

Title

Effect of panicle removal on photosynthetic acclimation under elevated CO₂ in rice

H. Shimono; K. Suzuki; K. Aoki; et al. Photosynthetica 2010. doi:10.1007/s11099-010-0070-z

Other claims from this paper (7)

Intervention effect Panicle removal alleviated decline in green leaf area, chlorophyll and Rubisco after heading.
Intervention effect Elevated CO2 decreased photosynthesis in panicle-removed rice.
Association The CO2 by panicle-removal interaction for photosynthesis was not significant.
Association Photosynthesis decrease under elevated CO2 was associated with lower leaf Rubisco.
Intervention effect Panicle removal increased leaf glucose.
Intervention effect Elevated CO2 increased leaf glucose.
Intervention effect Sink limitation improved leaf nitrogen status.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High temperature caused a more severe decrease in steady-state rice photosynthesis under low nitrogen.

Taxon: riceOryza sativae0
Treatment: high temperaturee1
Outcome: steady-state photosynthesis (Asteady)e1
Direction: decreasee1
Qualifier: LN conditionse1

Not reportedComparator

Verbatim

e0
“rice plants”
✓ located verbatim in the source · abstract, characters 449–460

e1
“a more severe decrease in steady-state photosynthesis (Asteady) under high temperature in the LN conditions.”
✓ located verbatim in the source · abstract, characters 926–1034

Title

Nitrogen Can Alleviate the Inhibition of Photosynthesis Caused by High Temperature Stress under Both Steady-State and Flecked Irradiance

Guanjun Huang; Qiangqiang Zhang; Xinghai Wei; et al. Frontiers in Plant Science 2017. doi:10.3389/fpls.2017.00945

Other claims from this paper (8)

Intervention effect High temperature increased rice leaf hydraulic conductance under high nitrogen supply.
Intervention effect High temperature did not significantly increase rice leaf hydraulic conductance under low nitrogen supply.
Mechanism Improved hydraulic conductance maintained leaf water potential and steady-state stomatal conductance under high nitrogen.
Intervention effect Under low nitrogen, high temperature decreased rice leaf water potential and steady-state stomatal conductance.
Intervention effect High temperature delayed recovery of rice photosynthesis under flecked irradiance.
Intervention effect High temperature caused more carbon loss under flecked irradiance in rice.
Intervention effect Heat effects on rice photosynthesis under flecked irradiance were less pronounced under high nitrogen than low nitrogen.
Mechanism Nitrogen can alleviate heat inhibition of rice photosynthesis under steady-state and flecked irradiance.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

M. hupehensis had the smallest photosynthesis rate decrease, 7.06%.

Taxon: M.hupehensis Rehd.Malus hupehensise0
Outcome: photosynthesis ratee0
Direction: decreasee0
Value: 7.06%e0

Not reportedTreatmentComparator

Verbatim

e0
“M.hupehensis Rehd.exhibited the lowest decrease in photosynthesis rate,chlorophyll and carotinoid contents,i.e.7.06%,9.15%and 8.17%,respectively.”
✓ located verbatim in the source · abstract, characters 436–581

Title

Study on the Difference of Adaptability to Replant Soil in Five Apple Rootstock Seedlings

Yuanzheng Wang Acta Horticulturae Sinica 2011

Other claims from this paper (11)

Intervention effect Replant soil reduced photosynthesis rate and leaf phytochrome content in all rootstocks.
Intervention effect M. hupehensis had the smallest chlorophyll decrease, 9.15%.
Intervention effect M. hupehensis had the smallest carotenoid decrease, 8.17%.
Intervention effect Replant soil increased root antioxidant enzymes and malondialdehyde in apple rootstocks.
Intervention effect M. hupehensis root SOD activity increased by 3.72%, the smallest increase.
Intervention effect M. hupehensis root POD activity increased by 26.60%, the smallest increase.
Intervention effect M. hupehensis root CAT activity increased by 23.78%, the smallest increase.
Intervention effect M. hupehensis root MDA content increased by 15.24%.
Intervention effect M. micromalus had the greatest MDA increase, 54.56%.
Intervention effect Replant conditions reduced biomass, height and ground diameter in all five rootstocks.
Observation M. hupehensis had the best tolerance to apple replant disease among the tested rootstocks.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

A decrease in internal conductance partly constrained potential photosynthesis gains in Q. petraea.

Taxon: Q. petraeae1
Outcome: potential increase in photosynthesise0
Qualifier: decrease in internal conductancee0

Verbatim

e0
“this potential increase in photosynthesis was at least partially hamstrung by a decrease in internal conductance”
✓ located verbatim in the source · abstract, characters 1520–1632

e1
“In Q. petraea”
✓ located verbatim in the source · abstract, characters 1319–1332

Title

Light acclimation at the end of the growing season in two broadleaved oak species

F. J. Cano; D. Sánchez-Gómez; A. Gascó; et al. Photosynthetica 2011. doi:10.1007/s11099-011-0066-3

Other claims from this paper (12)

Intervention effect Transfer to high light caused photoinhibition in Q. pyrenaica.
Intervention effect Q. pyrenaica had little VCmax or Jmax acclimation 21 days after transfer.
Intervention effect Transferred Q. pyrenaica had lower stomatal conductance than low light plants.
Mechanism Stomatal closure was the main photosynthesis limitation after transfer in Q. pyrenaica.
Intervention effect Higher evaporative demand did not change hydraulic conductivity in Q. pyrenaica.
Intervention effect Q. petraea had greater gas exchange acclimation than Q. pyrenaica after transfer.
Intervention effect Transferred Q. petraea gas exchange reached low light plant rates after two weeks.
Intervention effect Q. petraea VCmax increased significantly after transfer.
Association The increase in Q. petraea VCmax lowered its Jmax/VCmax ratio below high light plants.
Intervention effect Neither oak reached the photosynthetic rates of high light grown plants.
Observation Q. petraea leaves showed a trend toward acclimation.
Intervention effect Transfer harmed shade developed Q. pyrenaica leaves.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The decrease in photosynthesis in mature leaves showed a trend similar to the decrease in leaf potassium content across the three lettuce types.

Taxon: Lactuca sativaLactuca sativae0
Organ / stage: mature leavese1
Compound: potassiume1
Outcome: The decrease in photosynthesis in mature leavese1
Direction: similar trende1

Verbatim

e0
“three lettuce (Lactuca sativa) types”
✓ located verbatim in the source · abstract, characters 173–209

e1
“The decrease in photosynthesis in mature leaves exhibited a similar trend to the decreased potassium content in the leaves within the three lettuce types, but the factor related to the reduction of photosynthesis was different”
✓ located verbatim in the source · abstract, characters 1526–1752

Title

Plant Growth and Photosynthesis Response to Low Potassium Conditions in Three Lettuce (Lactuca sativa) Types

Geng Zhang; Masahumi Johkan; Masaaki Hohjo; et al. The Horticulture Journal 2016. doi:10.2503/hortj.okd-008

Other claims from this paper (11)

Intervention effectauthor interpretationreview summarynegativebasis n/a

Claim · model-written summary

Alternative irrigation causes a minor decrease of photosynthesis speed.

Taxon: cropse0
Treatment: Alternative irrigation technologye0
Outcome: photosynthesis speede0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Alternative irrigation technology can significantly increase the water use efficiency(WUE) of crops,improve the quality of products,create a special root system favorable for improving crop WUE,and remarkably reduce evaporation speed under minor decrease of photosynthesis speed”
✓ located verbatim in the source · abstract, characters 225–503

Title

Research Progress and Prospect on Alternative Irrigation Technology of Divided Root

Qiang Chai Journal of Agricultural Science and Technology 2010

Other claims from this paper (7)

Intervention effect Alternative irrigation significantly increases crop water use efficiency.
Intervention effect Alternative irrigation improves product quality.
Intervention effect Alternative irrigation creates a root system favorable for crop water use efficiency.
Intervention effect Alternative irrigation reduces evaporation speed.
Mechanism Alternative irrigation improves drought resistance and water use efficiency through biochemical adjustment.
Intervention effect Alternative irrigation favors moisture compensation and nutrient utilization efficiency.
Intervention effect Alternative irrigation decreases useless evaporation and leakage.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

A contrary nitrogen response was associated with a decrease in photosynthesis in ML-leaves.

Taxon: Cucumis sativusCucumis sativuse0
Material: ML-leavese7
Outcome: photosynthesise7
Direction: decreasee7

Verbatim

e0
“We investigated the effect of changes in irradiance on the photosynthesis irradiance response and on nitrogen allocation in fully grown leaves of Cucumis sativus”
✓ located verbatim in the source · abstract, characters 340–501

e7
“A contrary response of nitrogen was associated with the decrease in photosynthesis in ML-leaves”
✓ located verbatim in the source · abstract, characters 1441–1536

Title

Photosynthetic acclimation in relation to nitrogen allocation in cucumber leaves in response to changes in irradiance

Govert Trouwborst; Sander W. Hogewoning; Jeremy Harbinson; et al. Physiologia Plantarum 2011. doi:10.1111/j.1399-3054.2011.01456.x

Other claims from this paper (13)

“decrease of the photosynthesis”

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