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“decrease of the photosynthesis”

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Mechanismobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Raised lignin caused a significant reduction in dry matter digestibility.

Taxon: Panicum maximum Jacq.Megathyrsus maximuse1
Outcome: IVDMDe0
Direction: reductione0
Qualifier: lignin content in leavese1

Verbatim

e0
“causing a significant reduction in IVDMD”
✓ located verbatim in the source · abstract, characters 1538–1578

e1
“Panicum maximum Jacq. using a temperature‐free air‐controlled enhancement (T‐FACE) system. The wS and eT treatments showed no effects on photosystem II photochemistry. However, wS under ambient temperature decreased net photosynthesis rate ( A ), stomatal conductance ( g s ) and maximum rate of carboxylation of Rubisco ( V cmax ), leading to a reduced starch content in leaves. A 16% reduction in leaf dry mass (LDM) a…” Show full quote
✓ located verbatim in the source · abstract, characters 596–1536

Title

Warming and water deficit impact leaf photosynthesis and decrease forage quality and digestibility of a C4 tropical grass

Eduardo Habermann; Eduardo Augusto Dias de Oliveira; Daniele Ribeiro Contin; et al. Physiologia Plantarum 2018. doi:10.1111/ppl.12891

Other claims from this paper (15)

Intervention effect Water deficit and warming had no effect on photosystem II photochemistry.
Intervention effect Water deficit at ambient temperature decreased net photosynthesis, stomatal conductance and Rubisco carboxylation.
Intervention effect Water deficit reduced leaf starch.
Intervention effect Water deficit reduced leaf dry mass by 16%.
Intervention effect Water deficit increased forage fiber.
Intervention effect Water deficit reduced crude protein.
Intervention effect Water deficit decreased dry matter digestibility.
Intervention effect Warming with adequate moisture increased leaf dry mass by 25%.
Intervention effect Warming increased lignin content.
Intervention effect Warming reduced starch, crude protein and digestibility.
Intervention effect Combined warming and water deficit reduced photosynthesis, stomatal conductance and Rubisco carboxylation.
Intervention effect Combined warming and water deficit reduced forage quality.
Intervention effect Water deficit raised leaf lignin by 43% versus control.
Intervention effect Warming raised leaf lignin by 28% versus control.
Intervention effect Combined warming and deficit raised leaf lignin by 17% versus control.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Warming with adequate moisture increased leaf dry mass by 25%.

Taxon: Panicum maximum Jacq.Megathyrsus maximuse1
Treatment: Warming under adequate soil moisture ( eT )e0
Outcome: LDMe0
Direction: increasede0
Value: 25%e0

Not reportedComparator

Verbatim

e0
“Warming under adequate soil moisture ( eT ) significantly increased LDM by 25%”
✓ located verbatim in the source · abstract, characters 1158–1236

e1
“Panicum maximum Jacq. using a temperature‐free air‐controlled enhancement (T‐FACE) system. The wS and eT treatments showed no effects on photosystem II photochemistry. However, wS under ambient temperature decreased net photosynthesis rate ( A ), stomatal conductance ( g s ) and maximum rate of carboxylation of Rubisco ( V cmax ), leading to a reduced starch content in leaves. A 16% reduction in leaf dry mass (LDM) a…” Show full quote
✓ located verbatim in the source · abstract, characters 596–1536

Title

Warming and water deficit impact leaf photosynthesis and decrease forage quality and digestibility of a C4 tropical grass

Eduardo Habermann; Eduardo Augusto Dias de Oliveira; Daniele Ribeiro Contin; et al. Physiologia Plantarum 2018. doi:10.1111/ppl.12891

Other claims from this paper (15)

Intervention effect Water deficit and warming had no effect on photosystem II photochemistry.
Intervention effect Water deficit at ambient temperature decreased net photosynthesis, stomatal conductance and Rubisco carboxylation.
Intervention effect Water deficit reduced leaf starch.
Intervention effect Water deficit reduced leaf dry mass by 16%.
Intervention effect Water deficit increased forage fiber.
Intervention effect Water deficit reduced crude protein.
Intervention effect Water deficit decreased dry matter digestibility.
Intervention effect Warming increased lignin content.
Intervention effect Warming reduced starch, crude protein and digestibility.
Intervention effect Combined warming and water deficit reduced photosynthesis, stomatal conductance and Rubisco carboxylation.
Intervention effect Combined warming and water deficit reduced forage quality.
Intervention effect Water deficit raised leaf lignin by 43% versus control.
Intervention effect Warming raised leaf lignin by 28% versus control.
Intervention effect Combined warming and deficit raised leaf lignin by 17% versus control.
Mechanism Raised lignin caused a significant reduction in dry matter digestibility.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

GABA increased photosynthetic pigment contents and photosynthetic rates under hypoxic and normal conditions.

Taxon: muskmelon seedlingsCucumis melot0
Treatment: GABAe0
Outcome: photosynthetic pigment contents, net photosynthetic rate (P(n))e0
Direction: increasee0
Qualifier: under both hypoxic and normal conditionse0

Not reportedComparator

Verbatim

t0
“muskmelon seedlings”
✓ located verbatim in the source · title, characters 101–120

e0
“Applying GABA could significantly increase the photosynthetic pigment contents, net photosynthetic rate (P(n)), stomatal conductance (G(s)), intercellular CO2 concentration (C(i)), carboxylation efficiency (CE), maximal photochemical efficiency of PS II (F(v)/F(m)), photochemical quenching (q(P)), apparent photosynthetic electron transfer rate (ETR), and quantum yield of PS II electron transport (phi(PS II)), and dec…” Show full quote
✓ located verbatim in the source · abstract, characters 380–952

Title

[Effects of gamma-aminobutyric acid on the photosynthesis and chlorophyll fluorescence parameters of muskmelon seedlings under hypoxia stress].

Qing-ping Xia; Hong-bo Gao; Jing-rui Li PubMed 2011

Other claims from this paper (7)

Intervention effect Hypoxia significantly reduced photosynthetic pigments and photosynthesis in muskmelon seedlings.
Intervention effect GABA increased stomatal conductance, intercellular CO2 concentration and carboxylation efficiency.
Intervention effect GABA increased four PS II fluorescence and electron transport measures.
Intervention effect GABA increased quantum yield of PS II electron transport.
Intervention effect GABA decreased stomatal limitation, minimal fluorescence and non-photochemical quenching.
Observation GABA alleviated photosynthetic impairment more under hypoxia.
Intervention effect Adding VGB diminished the alleviation by GABA under hypoxia.

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