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“decrease in relative water content”

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Root cooling lowered leaf relative water content by as much as 23%.

Taxon: Artemisia tridentataArtemisia tridentatat0
Treatment: root coolinge0
Outcome: leaf relative water contente0
Direction: decreasee0
Value: as much as 23%e0

Not reportedComparator

Verbatim

e0
“a concomitant decrease of as much as 23% in leaf relative water content (RWC) indicated that root cooling affected stomatal closure”
✓ located verbatim in the source · abstract, characters 1040–1171

t0
“Artemisia tridentata”
✓ located verbatim in the source · title, characters 44–64

Title

Effect of Root Cooling on Photosynthesis of Artemisia tridentata Seedlings under Different Light Levels

H. BassiriRad; M. M. Caldwell; K. A. Mott Botanica Acta 1993. doi:10.1111/j.1438-8677.1993.tb00744.x

Other claims from this paper (9)

Intervention effect Root cooling reduced whole-plant net photosynthesis by 25% at high light.
Intervention effect Root cooling reduced stomatal conductance by more than 50% before photosynthesis declined.
Intervention effect Root cooling reduced intercellular CO2 concentration by about 10% at high light.
Intervention effect Photosynthesis versus intercellular CO2 curves did not differ between cold and warm soil.
Intervention effect Stomatal conductance was lower at the lower soil temperature.
Mechanism The authors inferred that cooling limited photosynthesis through stomatal closure linked to lower water supply.
Intervention effect At lower light, root cooling did not decrease whole-plant photosynthesis.
Intervention effect At lower light, root cooling moderately reduced stomatal conductance, intercellular CO2 and relative water content.
Intervention effect Cold soil rapidly and substantially reduced root respiration at either light level.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Relative water content declined in the order maize, Japanese millet, sorghum, pearl millet as water or osmotic potential declined.

Taxon: maize>Japanese millet>sorghum>pearl milletEchinochloa frumentaceae0
Outcome: relative water contente0
Direction: decreasinge0
Qualifier: decrease of either Ψ or πe0

Not reportedOrgan / stage

Verbatim

e0
“The decreasing order of relative water content with a decrease of either Ψ or π was as follows : maize>Japanese millet>sorghum>pearl millet.”
✓ located verbatim in the source · abstract, characters 954–1094

Title

Interspecific Differences in the Mechanism of Drought Tolerance among Four Cereal Crops.

Katsumi INADA; Asana MATSUURA; Masakatsu YAMANE Japanese Journal of Crop Science 1992. doi:10.1626/jcs.61.87

Other claims from this paper (4)

Intervention effect Stress decreased dry weight less in pearl millet and sorghum.
Observation Sorghum and Japanese millet recovered faster after stress removal.
Intervention effect Stressed leaf osmotic potential decreased more than control except in maize.
Observation Osmotic adjustment ranked sorghum, Japanese millet, pearl millet and maize.

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Infection by Puccinia lagenophorae significantly decreased relative water content of Senecio glaucus leaves.

Taxon: Senecio glaucusSenecio glaucuse0
Treatment: infectione1
Interactor: Puccinia lagenophoraePuccinia lagenophoraee0pathogen
Outcome: relative water contente1
Direction: decreasee1

Not reportedComparator

Verbatim

e0
“Puccinia lagenophorae, infecting Senecio glaucus and Albugo Candida infecting Cakile maritima during late infection”
✓ located verbatim in the source · abstract, characters 337–452

e1
“The infection of Senecio caused a significant decrease of relative water content, while the infection of Cakile caused a nonsignificant decrease of the same parameter”
✓ located verbatim in the source · abstract, characters 604–770

Title

Physiological and Biochemical Changes in Host Leaf Tissues Associated with the Growth of Two Biotrophic Fungi Growing in Egypt

Heshmat S. Aldesuquy; Zakaria Baka 1992

Other claims from this paper (11)

Intervention effect Infection by Albugo Candida caused a nonsignificant decrease of relative water content in Cakile maritima.
Intervention effect Infected Senecio glaucus leaves had greatly reduced ionic content (Na+, K+, Ca2+).
Intervention effect Infected Cakile maritima leaves had greatly reduced ionic content (Na+, K+, Ca2+).
Intervention effect Pigments (chl a, chl b and carotenoids) decreased in infected Senecio glaucus leaves.
Intervention effect Pigments (chl a, chl b and carotenoids) decreased in infected Cakile maritima leaves.
Intervention effect Carbohydrate content decreased significantly in infected Senecio glaucus leaves.
Intervention effect Carbohydrate content increased in infected Cakile maritima leaves.
Intervention effect Most amino acids decreased in infected Senecio glaucus leaves after infection by the two pathogens.
Intervention effect Most amino acids decreased in infected Cakile maritima leaves after infection by the two pathogens.
Intervention effect Phenylalanine and histidine increased in infected Senecio glaucus leaves.
Intervention effect Glycine, alanine, methionine and histidine increased in infected Cakile maritima leaves.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Control pear leaf water potential and relative water content at turgor loss tended to decline from spring to summer.

Taxon: pear treesPyrus communise1
Organ / stage: leavese0
Outcome: Leaf water potential (Psi(pi) (0)) and relative water content (R(0))e0
Direction: decreasee0

Verbatim

e0
“Leaf water potential (Psi(pi) (0)) and relative water content (R(0)) at the turgor loss point of control leaves tended to decrease from spring to summer”
✓ located verbatim in the source · abstract, characters 870–1022

e1
“pear trees (Pyrus communis L. cv. "Barlett")”
✓ located verbatim in the source · abstract, characters 81–125

Title

Effects of water stress cycles on turgor maintenance processes in pear leaves (Pyrus communis)

J. Marsal; J. Girona Tree Physiology 1997. doi:10.1093/treephys/17.5.327

Other claims from this paper (7)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Solute levels related more closely to declining relative water content than declining leaf water potential.

Taxon: Hordeum vulgare L.Hordeum vulgaret0
Outcome: Solute levelse0
Direction: more closely relatede0
Comparator: leaf water potentiale0

Verbatim

e0
“Solute levels, in general, were more closely related to the decrease in relative water content than to a decrease in leaf water potential.”
✓ located verbatim in the source · abstract, characters 1416–1554

t0
“barley (Hordeum vulgare L.)”
✓ located after whitespace/quote normalisation · title, characters 47–74

Title

Variability in Proline-Accumulating Ability of Barley (Hordeum vulgare L.) Cultivars Induced by Vapor Pressure Deficit

Bodapati P. Naidu; Donald Aspinall; Leslie G. Paleg PLANT PHYSIOLOGY 1992. doi:10.1104/pp.98.2.716

Other claims from this paper (8)

Intervention effect Higher growth VPD increased Clipper seedling solute accumulation relative to lower VPD.
Intervention effect Higher VPD during stress increased solute content.
Observation At low VPD, Proctor accumulated significantly more proline than Excelsior.
Observation At higher VPD, Excelsior accumulated more proline than Proctor.
Observation The cultivar proline response crossed over at about 0.72 kilopascals VPD.
Intervention effect Multiplying seed at the two VPD extremes enhanced the cultivar response reversal.
Observation Glycinebetaine accumulation showed no cultivar crossover.
Association Glycinebetaine concentration depended on growth or stress VPD in all cultivars.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Nickel lowered water potential and relative water content in both cultivars, more strongly in Adamello.

Taxon: durum wheatTriticum turgidum subsp. durumt0
Material: ‘Adamello’ [drought sensitive (DS)] and ‘Ofanto’ [drought tolerant, (DT)]e1
Treatment: Nickele0
Outcome: water potential (ψw) and relative water content (RWC)e0
Direction: decreasee0
Qualifier: greater in the DS cultivare0

Not reportedComparator

Verbatim

e0
“Nickel caused a decrease in the water potential (ψw) and relative water content (RWC) in both cultivars, but these decreases were greater in the DS cultivar.”
✓ located verbatim in the source · abstract, characters 846–1003

e1
“‘Adamello’ [drought sensitive (DS)] and ‘Ofanto’ [drought tolerant, (DT)]”
✓ located verbatim in the source · abstract, characters 195–268

t0
“durum wheat”
✓ located verbatim in the source · title, characters 23–34

Title

Nickel toxicity in two durum wheat cultivars differing in drought sensitivity

T. Pandolfini; R. Gabbrielli; M. Ciscato Journal of Plant Nutrition 1996. doi:10.1080/01904169609365225

Other claims from this paper (7)

Observation Ofanto seedlings had 3.5 times the root nickel concentration of Adamello at 35 μM Ni.
Observation Ofanto maintained better growth and nutritional status than Adamello despite more tissue nickel.
Intervention effect Nickel reduced both chlorophyll a and b in the drought-sensitive cultivar.
Intervention effect Nickel decreased chlorophyll a in Ofanto, less than in Adamello.
Intervention effect Nickel level did not alter chlorophyll b in Ofanto.
Intervention effect Nickel increased three antioxidative enzyme activities in Adamello seedlings.
Intervention effect The same enzyme activity increase was absent in Ofanto seedlings.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Water withholding lowered RWC to about 50%.

Taxon: Xerosicyos danguyiXerosicyos danguyie1
Outcome: relative water content (RWC)e0
Direction: decreasee0
Value: about 50%e0

Not reportedTreatmentComparator

Verbatim

e0
“there is a steady decrease in relative water content (RWC), reaching about 50%”
✓ located verbatim in the source · abstract, characters 573–651

e1
“Xerosicyos danguyi H.Humb. (Cucurbitaceae)”
✓ located verbatim in the source · abstract, characters 0–42

Title

Effect of Severe Water Stress on Aspects of Crassulacean Acid Metabolism in Xerosicyos

B. Bastide; D. Sipes; J. Hann; et al. PLANT PHYSIOLOGY 1993. doi:10.1104/pp.103.4.1089

Other claims from this paper (10)

Intervention effect Water potential dropped to -12 bars.
Intervention effect ABA rose sharply at 75% RWC.
Intervention effect Stomatal closure limited CO2 uptake.
Intervention effect Organic acid fluctuations were dampened in CAM idling.
Intervention effect Chlorophyll, protein and Rubisco activity were unchanged relative to watered plants.
Intervention effect PEPc mRNA, activity, and protein rose under stress.
Intervention effect PEPc specific activity remained nearly constant.
Intervention effect Apparent Km(PEP) fell under stress.
Observation Km(PEP) changes were not an assay artifact.
Intervention effect Metabolism quickly returned to the well watered CAM state after rewatering.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought decreased ascorbate content in pea nodules by 59% relative to well-watered plants.

Taxon: PeaLathyrus oleraceust0
Organ / stage: Nodulest0
Treatment: Droughte0
Outcome: ascorbatee1
Direction: decreasee0
Value: 59%e1
Comparator: well-waterede2

Verbatim

t0
“Pea Nodules Subjected to Water Stress”
✓ located verbatim in the source · title, characters 49–86

e0
“Drought also caused a decrease”
✓ located verbatim in the source · abstract, characters 535–565

e1
“ascorbate (59%)”
✓ located verbatim in the source · abstract, characters 749–764

e2
“well-watered”
✓ located verbatim in the source · abstract, characters 278–290

Title

Antioxidant Defenses against Activated Oxygen in Pea Nodules Subjected to Water Stress

Y. Gogorcena; I. Iturbe-Ormaetxe; P. R. Escuredo; et al. PLANT PHYSIOLOGY 1995. doi:10.1104/pp.108.2.753

Other claims from this paper (16)

Intervention effect Water stress decreased leghemoglobin and total soluble protein in pea nodules by 30%, indicating senescence.
Intervention effect Drought decreased catalase activity by 25% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased ascorbate peroxidase activity by 18% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased dehydroascorbate reductase activity by 15% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased glutathione reductase activity by 31% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased superoxide dismutase activity by 30% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased reduced glutathione content in pea nodules by 57% relative to well-watered plants.
Intervention effect Drought decreased oxidized glutathione content in pea nodules by 38% relative to well-watered plants.
Intervention effect Drought decreased NAD+ and NADH contents in pea nodules by 43% relative to well-watered plants.
Intervention effect Drought decreased NADP+ content in pea nodules by 31% relative to well-watered plants.
Intervention effect Drought decreased NADPH content in pea nodules by 17% relative to well-watered plants.
Intervention effect Water stress caused a 2-fold increase in the content of catalytic Fe in pea nodules.
Intervention effect Water-stressed pea nodules had augmented levels of lipid peroxides, 2.4-fold.
Intervention effect Water-stressed pea nodules had augmented levels of oxidatively modified proteins, 1.4-fold.
Mechanism The authors suggest the decline in antioxidant capacity of pea nodules may result from a restricted NAD(P)H supply for the ascorbate-glutathione pathway and from Fe-catalyzed Fenton reactions of ascorbate and glutathione with activated oxygen.
Mechanism The authors suggest the increase in catalytic Fe would also explain the augmented lipid peroxides in water-stressed pea nodules.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought decreased NADP+ content in pea nodules by 31% relative to well-watered plants.

Taxon: PeaLathyrus oleraceust0
Organ / stage: Nodulest0
Treatment: Droughte0
Outcome: NADP+e1
Direction: decreasee0
Value: 31%e1
Comparator: well-waterede2

Verbatim

t0
“Pea Nodules Subjected to Water Stress”
✓ located verbatim in the source · title, characters 49–86

e0
“Drought also caused a decrease”
✓ located verbatim in the source · abstract, characters 535–565

e1
“NADP+ (31%)”
✓ located verbatim in the source · abstract, characters 833–844

e2
“well-watered”
✓ located verbatim in the source · abstract, characters 278–290

Title

Antioxidant Defenses against Activated Oxygen in Pea Nodules Subjected to Water Stress

Y. Gogorcena; I. Iturbe-Ormaetxe; P. R. Escuredo; et al. PLANT PHYSIOLOGY 1995. doi:10.1104/pp.108.2.753

Other claims from this paper (16)

Intervention effect Water stress decreased leghemoglobin and total soluble protein in pea nodules by 30%, indicating senescence.
Intervention effect Drought decreased catalase activity by 25% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased ascorbate peroxidase activity by 18% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased dehydroascorbate reductase activity by 15% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased glutathione reductase activity by 31% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased superoxide dismutase activity by 30% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased ascorbate content in pea nodules by 59% relative to well-watered plants.
Intervention effect Drought decreased reduced glutathione content in pea nodules by 57% relative to well-watered plants.
Intervention effect Drought decreased oxidized glutathione content in pea nodules by 38% relative to well-watered plants.
Intervention effect Drought decreased NAD+ and NADH contents in pea nodules by 43% relative to well-watered plants.
Intervention effect Drought decreased NADPH content in pea nodules by 17% relative to well-watered plants.
Intervention effect Water stress caused a 2-fold increase in the content of catalytic Fe in pea nodules.
Intervention effect Water-stressed pea nodules had augmented levels of lipid peroxides, 2.4-fold.
Intervention effect Water-stressed pea nodules had augmented levels of oxidatively modified proteins, 1.4-fold.
Mechanism The authors suggest the decline in antioxidant capacity of pea nodules may result from a restricted NAD(P)H supply for the ascorbate-glutathione pathway and from Fe-catalyzed Fenton reactions of ascorbate and glutathione with activated oxygen.
Mechanism The authors suggest the increase in catalytic Fe would also explain the augmented lipid peroxides in water-stressed pea nodules.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought decreased NADPH content in pea nodules by 17% relative to well-watered plants.

Taxon: PeaLathyrus oleraceust0
Organ / stage: Nodulest0
Treatment: Droughte0
Outcome: NADPHe1
Direction: decreasee0
Value: 17%e1
Comparator: well-waterede2

Verbatim

t0
“Pea Nodules Subjected to Water Stress”
✓ located verbatim in the source · title, characters 49–86

e0
“Drought also caused a decrease”
✓ located verbatim in the source · abstract, characters 535–565

e1
“NADPH (17%)”
✓ located verbatim in the source · abstract, characters 850–861

e2
“well-watered”
✓ located verbatim in the source · abstract, characters 278–290

Title

Antioxidant Defenses against Activated Oxygen in Pea Nodules Subjected to Water Stress

Y. Gogorcena; I. Iturbe-Ormaetxe; P. R. Escuredo; et al. PLANT PHYSIOLOGY 1995. doi:10.1104/pp.108.2.753

Other claims from this paper (16)

Intervention effect Water stress decreased leghemoglobin and total soluble protein in pea nodules by 30%, indicating senescence.
Intervention effect Drought decreased catalase activity by 25% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased ascorbate peroxidase activity by 18% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased dehydroascorbate reductase activity by 15% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased glutathione reductase activity by 31% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased superoxide dismutase activity by 30% in pea nodules relative to well-watered plants.
Intervention effect Drought decreased ascorbate content in pea nodules by 59% relative to well-watered plants.
Intervention effect Drought decreased reduced glutathione content in pea nodules by 57% relative to well-watered plants.
Intervention effect Drought decreased oxidized glutathione content in pea nodules by 38% relative to well-watered plants.
Intervention effect Drought decreased NAD+ and NADH contents in pea nodules by 43% relative to well-watered plants.
Intervention effect Drought decreased NADP+ content in pea nodules by 31% relative to well-watered plants.
Intervention effect Water stress caused a 2-fold increase in the content of catalytic Fe in pea nodules.
Intervention effect Water-stressed pea nodules had augmented levels of lipid peroxides, 2.4-fold.
Intervention effect Water-stressed pea nodules had augmented levels of oxidatively modified proteins, 1.4-fold.
Mechanism The authors suggest the decline in antioxidant capacity of pea nodules may result from a restricted NAD(P)H supply for the ascorbate-glutathione pathway and from Fe-catalyzed Fenton reactions of ascorbate and glutathione with activated oxygen.
Mechanism The authors suggest the increase in catalytic Fe would also explain the augmented lipid peroxides in water-stressed pea nodules.

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“decrease in relative water content”

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