Search claims · PlantClaims

Observationobservedreview summarynegativebasis n/a

Claim · model-written summary

Chlorophyll content and photosynthesis rate decrease as senescence progresses.

Taxon: higher plantt0
Organ / stage: leaft0
Outcome: contents of chlorophyll and the photosynthesis ratee0
Direction: decreasee0

Verbatim

e0
“With further senescence,both the contents of chlorophyll and the photosynthesis rate decrease.”
✓ located verbatim in the source · abstract, characters 131–225

t0
“Leaf senescence in higher plant”
✓ located verbatim in the source · title, characters 0–31

Title

Leaf senescence in higher plant

Gao Jun 2001

Other claims from this paper (4)

Observation Protein loss occurs early in leaf senescence.
Observation The degraded soluble protein is mainly fraction I protein.
Observation Protective enzyme activity decreases during senescence.
Mechanism Leaf senescence is attributed to disturbed metabolism of active oxygen and free radicals.

Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Metabolic decrease related to photosynthesis and energy supply is associated with amidosulfuron-induced male sterility in rapeseed.

Taxon: Rapeseedt0
Treatment: amidosulfurone7
Outcome: metabolic decrease related to photosynthesis and energy supplye7
Direction: decreasee7
Qualifier: associated with male sterilitye7

Verbatim

t0
“in Rapeseed”
✓ located verbatim in the source · title, characters 142–153

e7
“The results suggested that metabolic decrease related to photosynthesis and energy supply are associated with male sterility induced by amidosulfuron”
✓ located verbatim in the source · abstract, characters 1812–1961

Title

Acetolactate Synthase-Inhibiting Gametocide Amidosulfuron Causes Chloroplast Destruction, Tissue Autophagy, and Elevation of Ethylene Release in Rapeseed

Xi-Qiong Liu; Cheng-Yu Yu; Jun-Gang Dong; et al. Frontiers in Plant Science 2017. doi:10.3389/fpls.2017.01625

Other claims from this paper (17)

Intervention effect Amidosulfuron at a gametocidal dose caused a short retardation of raceme elongation in rapeseed early after exposure.
Intervention effect Amidosulfuron caused slight chlorosis on rapeseed leaves in the first days after exposure.
Intervention effect Amidosulfuron reduced the photosynthetic rate and leaf chlorophyll content of rapeseed.
Intervention effect Amidosulfuron reduced soluble sugar and pyruvate contents in rapeseed plants.
Intervention effect Amidosulfuron altered the contents of several free amino acids in rapeseed plants, direction not stated.
Intervention effect Amidosulfuron deformed chloroplasts in leaf and anther epidermis and tapetal plastids of rapeseed.
Intervention effect Amidosulfuron caused autophagic vacuoles in tapetal cells and uni-nucleate microspores, which degenerated quickly.
Intervention effect Amidosulfuron treatment yielded 142 up-regulated differential expression transcripts in young flower buds.
Intervention effect Amidosulfuron treatment yielded 201 down-regulated differential expression transcripts in young flower buds.
Intervention effect Amidosulfuron down-regulated the expression of PAIR1, SDS and PPD2 genes in rapeseed flower buds.
Intervention effect Amidosulfuron down-regulated the expression of HFM1, CSTF77 and A6 genes in rapeseed flower buds.
Intervention effect Amidosulfuron down-regulated the expression of ALA6, UGE1 and FLA20 genes in rapeseed flower buds.
Intervention effect Amidosulfuron down-regulated the expression of A9, bHLH91 and a putative cell wall protein in rapeseed flower buds.
Intervention effect Amidosulfuron up-regulated the autophagy-related protein ATG8A in rapeseed flower buds.
Intervention effect Amidosulfuron up-regulated the ethylene-responsive transcription factor RAP2-11-like in rapeseed flower buds.
Intervention effect Amidosulfuron elevated the ethylene release rate of rapeseed.
Mechanism The gene expression changes indicate functional abnormalities in cell cycle, cell wall formation, chloroplast structure and tissue autophagy of amidosulfuron-treated rapeseed.

Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

Smaller guard cells may account for decreased leaf photosynthesis.

Taxon: riceOryza sativat0
Outcome: leaf photosynthesise0
Direction: decreasee0
Qualifier: This anatomical characteristice0

Verbatim

e0
“This anatomical characteristic may account for the observed decrease in leaf photosynthesis”
✓ located verbatim in the source · abstract, characters 913–1004

t0
“mutant of rice”
✓ located verbatim in the source · title, characters 54–68

Title

Decreased photosynthesis in the erect panicle 3 (ep3) mutant of rice is associated with reduced stomatal conductance and attenuated guard cell development

Hongyang Yu; Erik H. Murchie; Zinnia H. González-Carranza; et al. Journal of Experimental Botany 2015. doi:10.1093/jxb/eru525

Other claims from this paper (7)

Intervention effect Rice EP3 functionally complemented the Arabidopsis hws-1 flower phenotype.
Observation Os02g15950 loss-of-function mutants had erect inflorescences.
Observation Os02g15950 loss-of-function mutants had lower leaf photosynthetic capacity and stomatal conductance.
Observation Rubisco content was unaltered in the mutants.
Observation Mesophyll size and arrangement did not notably change.
Observation ep3 mutant plants had smaller guard cells than wild-type controls.
Observation Os02g15950 T-DNA insertion lines had smaller guard cells than wild-type controls.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The decrease in photosynthesis under high-temperature stress is mediated through anatomical and structural changes in the cell and cell organelles of soybean.

Taxon: SoybeanGlycine maxe0
Outcome: Decreases in photosynthesise7
Qualifier: mediated through anatomical and structural changes in the cell and cell organellese7

Verbatim

e0
“Soybean ( Glycine max L. Merr.) genotype K 03‐2897”
✓ located verbatim in the source · abstract, characters 0–50

e7
“Decreases in photosynthesis at HT stress were mediated through anatomical and structural changes in the cell and cell organelles, particularly the chloroplast and mitochondria”
✓ located verbatim in the source · abstract, characters 1207–1382

Title

High‐Temperature Stress and Soybean Leaves: Leaf Anatomy and Photosynthesis

M. Djanaguiraman; P. V. V. Prasad; D. L. Boyle; et al. Crop Science 2011. doi:10.2135/cropsci2010.10.0571

Other claims from this paper (7)

Observationobservedoriginal resultmeasured

Claim · model-written summary

In wheat, the intensity of photosynthesis and the length of thylakoids decreased simultaneously with the loss of acquired thermotolerance.

Taxon: wheatTriticum aestivumt0
Outcome: intensity of photosynthesis and the length of thylakoidse0
Direction: decreasee0

Verbatim

e0
“Simultaneously the intensity of photosynthesis and the length of thylakoids decrease”
✓ located verbatim in the source · abstract, characters 242–326

t0
“wheat leaves”
✓ located verbatim in the source · title, characters 124–136

Title

[Reorganization of the chloroplast thylakoid system during decay of acquired thermotolerance of photosynthesis and aging of wheat leaves].

I M Kisliuk; L S Bubolo PubMed 2000

Other claims from this paper (7)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The photosynthetic decline began proximally and spread distally across the lamina.

Taxon: Perilla frutescensPerilla frutescenst0
Organ / stage: laminae0
Outcome: rate of photosynthesise0
Direction: decreasee0

Verbatim

e0
“The decrease in rate of photosynthesis first became apparent in the parts of the lamina proximal to the petiole and gradually extended to the more distal regions”
✓ located verbatim in the source · abstract, characters 241–402

t0
“PERILLA FRUTESCENS”
✓ located verbatim in the source · title, characters 58–76

Title

PHOTOSYNTHESIS AND RESPIRATION IN RELATION TO LEAF AGE IN PERILLA FRUTESCENS (L.) BRITT

K. HARDWICK; M. WOOD; H. W. WOOLHOUSE New Phytologist 1968. doi:10.1111/j.1469-8137.1968.tb05456.x

Other claims from this paper (6)

Mechanismauthor interpretationreview summarynegativebasis n/a

Claim · model-written summary

Leaf rust defoliation can decrease floral bud differentiation.

Taxon: southern highbush blueberriese1
Outcome: floral bud differentiatione0
Direction: decreasee0
Qualifier: defoliatione0

Not reportedInteractor

Verbatim

e0
“Severe leaf rust causes defoliation in the fall or early winter, which can decrease floral bud differentiation, photosynthesis, and the next season’s fruit yield”
✓ located verbatim in the source · abstract, characters 151–312

e1
“southern highbush blueberries”
✓ located verbatim in the source · abstract, characters 37–66

Title

Leaf Rust Disease of Southern Highbush Blueberry in Florida

Philip F. Harmon; Christ Mane Belizaire; Douglas A. Phillips EDIS 2025. doi:10.32473/edis-pp385-2025

Other claims from this paper (4)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Reduced humidity decreased stomatal density.

Taxon: plumPrunus domesticat0
Treatment: reduction in r.h.e0
Outcome: stomatal densitye0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“the reduction in r.h. induced a decrease in stomatal density”
✓ located verbatim in the source · abstract, characters 591–651

t0
“Water loss and photosynthesis of plum plantlets is influenced by relative humidity during rootingin vitro”
✓ located verbatim in the source · title, characters 0–105

Title

Water loss and photosynthesis of plum plantlets is influenced by relative humidity during rootingin vitro

R. Sciutti; S. Morini Journal of Horticultural Science 1995. doi:10.1080/14620316.1995.11515291

Other claims from this paper (5)

Intervention effect Lower rooting humidity increased plantlet resistance to water loss.
Intervention effect The 80% and 70% humidity treatments produced denser leaf wax and thicker filaments.
Observation Reduced humidity produced more ellipsoidal stomata with smaller openings.
Intervention effect Photosynthetic activity was slower after rooting at 80% than at 100% humidity.
Observation Total eight-hour CO2 uptake tended to be similar between 80% and 100% humidity treatments.

Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

The authors suggest tetraploid vein density and bundle sheath development may support ear photosynthesis and limit yield loss.

Taxon: wheatTriticum aestivumt0
Material: tetraploid speciese0
Outcome: higher P N _ear and lower decrease in grain yielde0
Qualifier: higher vein density and well‐developed bundle sheathe0

Verbatim

e0
“The higher vein density and well‐developed bundle sheath of tetraploid species may contribute to the higher P N _ear and lower decrease in grain yield”
✓ located verbatim in the source · abstract, characters 1554–1704

t0
“wheat yield”
✓ located verbatim in the source · title, characters 37–48

Title

Ear photosynthetic anatomy effect on wheat yield and water use efficiency

Yuping Li; Hongbing Li; Suiqi Zhang; et al. Agronomy Journal 2020. doi:10.1002/agj2.20154

Other claims from this paper (10)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Dicots tended to decrease minor vein density under potassium starvation

Taxon: Dicotse1
Treatment: potassium starvatione0
Outcome: minor vein densitye1
Direction: decreasede1
Qualifier: tended to showe1

Not reportedComparator

Verbatim

e1
“Dicots tended to show a decreased minor vein density, whereas monocots reduced the size of the bundle sheath and its extensions, rather than the minor vein density”
✓ located verbatim in the source · abstract, characters 752–915

e0
“We found a conserved pattern in which leaf photosynthesis and hydraulic conductance concurrently decreased under potassium starvation”
✓ located verbatim in the source · abstract, characters 536–669

Title

Potassium mediates coordination of leaf photosynthesis and hydraulic conductance by modifications of leaf anatomy

Zhifeng Lu; Kailiu Xie; Yonghui Pan; et al. Plant Cell & Environment 2019. doi:10.1111/pce.13553

Other claims from this paper (5)

“decrease of the photosynthesis”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics