Search claims · PlantClaims

Associationobservedoriginal resultmeasured

Claim · model-written summary

Relative water content and the contents of free water and starch in T. chinensis var. mairei leaves decreased as the semilethal low temperature fell.

Taxon: T. chinensis var.maireie0
Organ / stage: leavese0
Outcome: relative water content and the content of free water and starche0
Direction: decreasee0

Verbatim

e0
“relative water content and the content of free water and starch of T. chinensis var.mairei leaves decrease”
✓ located verbatim in the source · abstract, characters 169–275

Title

The relationship between changes of water content and osmoregulation substances and semilethal low temperature in T. chinensis var.mairei as temperature falls

Xie Ji-rong Journal of Southwest Nationalities College 2002

Other claims from this paper (3)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Performance index decreased continuously from the start of dehydration as relative water content fell.

Treatment: dehydratione0
Outcome: performance index (PIabs)e0
Direction: decreasee0
Qualifier: following the decrease of RWCe0

Not reportedTaxon

Verbatim

e0
“a continuous decrease of performance index (PIabs) parameter (Strasser et al. 1995) was observed from the very beginning of dehydration following the decrease of RWC.”
✓ located verbatim in the source · abstract, characters 744–910

Title

Performance index as a sensitive indicator of water stress in Triticum aestivum L.

M. Živčák; M. Brestič; K. Olšovská; et al. Plant Soil and Environment 2008. doi:10.17221/392-pse

Other claims from this paper (3)

Intervention effect Maximum PS II quantum efficiency was almost unchanged by dehydration until severe water stress.
Observation Performance index differed significantly among all tested wheat varieties.
Method / resource The authors propose PIabs as an index of wheat vitality and sensitivity to water stress.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Water stress decreased relative water content and net CO2 assimilation.

Taxon: durum wheatTriticum turgidum subsp. durumt0
Treatment: water stresse1
Outcome: relative water content (RWC) and net CO2 assimilatione0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Development of water stress was monitored as the decrease in relative water content (RWC) and net CO2 assimilation”
✓ located verbatim in the source · abstract, characters 238–352

e1
“exposed to water stress by withholding water for 8 d”
✓ located verbatim in the source · abstract, characters 184–236

t0
“durum wheat”
✓ located verbatim in the source · title, characters 44–55

Title

Photoprotection in water-stressed plants of durum wheat (Triticum turgidum var. durum ): changes in chlorophyll fluorescence, spectral signature and photosynthetic pigments

Eduardo A. Tambussi; Jaume Casadesus; Sergi Munné-Bosch; et al. Australian Journal of Plant Physiology 2002. doi:10.1071/pp01104

Other claims from this paper (8)

Intervention effect Non-photochemical fluorescence quenching increased after six days.
Intervention effect Zeaxanthin and antheraxanthin contents increased after six days.
Association Further xanthophyll increase on day eight was not accompanied by qN increase.
Intervention effect β-carotene content rose significantly on day eight.
Intervention effect The photochemical index dropped progressively on days six and eight.
Association Xanthophyll de-epoxidation state increased alongside the PI decline.
Association At midday, PI correlated negatively with DPS and qN.
Method / resource PI may be a reliable indicator of photoprotection.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Heat reduced relative water content and increased MDA and ion leakage in alfalfa leaves.

Taxon: alfalfaMedicago sativae0
Treatment: heat stresse0
Outcome: relative water contente0
Direction: decreasee0
Comparator: room temperaturee0

Verbatim

e0
“Compared to seedlings under room temperature,significant decrease of relative water content and increase of MDA content and ion leakage in alfalfa leaves occurred after 2 days of heat stress”
✓ located verbatim in the source · abstract, characters 1216–1406

Title

The Effects of Temperature Stress on Photosynthesis and Nitrogen Reduction of Alfalfa and Guyana Stylosanthes

Yiwei Mo 2008

Other claims from this paper (19)

Intervention effect Heat increased MDA content and ion leakage in alfalfa leaves.
Intervention effect Cold did not significantly change these alfalfa leaf injury indices over five days.
Observation Guyana stylosanthes maintained high water content and low injury indices under heat.
Intervention effect Cold significantly increased MDA and ion leakage in Guyana stylosanthes.
Intervention effect Both temperature stresses increased sugars and sucrose enzyme activities in both legumes, more under cold stress.
Intervention effect Cold and heat decreased starch in both legumes, with the lowest level under cold stress.
Intervention effect Photosynthesis decreased in both legumes under heat and cold.
Intervention effect Alfalfa photosynthesis decreased more under heat than cold.
Intervention effect Guyana stylosanthes photosynthesis decreased more under cold than heat.
Intervention effect Alfalfa fluorescence parameters fell strongly under heat and slightly under cold.
Intervention effect Guyana stylosanthes fluorescence parameters fell strongly under cold, with no heat effect.
Intervention effect Heat greatly decreased chloroplast ATP synthase activity and ATP content in alfalfa.
Intervention effect Cold decreased ATP in Guyana stylosanthes, whereas heat did not.
Intervention effect Both stresses decreased RuBPcase and FBPase activity in both legumes.
Intervention effect Heat greatly decreased nitrogen assimilation enzyme activities in alfalfa leaves.
Intervention effect Cold greatly decreased nitrogen assimilation enzyme activities in Guyana stylosanthes.
Intervention effect Temperature stress accumulated nitrate and ammonium nitrogen in both legumes, with higher levels under heat.
Mechanism Authors attribute nitrate and ammonium accumulation to lower reductase activity.
Mechanism Authors link photosystem II injury to impaired photophosphorylation, ATP supply, photosynthesis and nitrogen assimilation.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

E.escelsus and E.purpuraristatus from Xinjiang had the largest decrease in leaf relative water content under drought.

Taxon: ElymusElymuse1
Material: E.escelsus and E.purpuraristatus from Xinjiange3
Outcome: leaf relative water contente3
Direction: decreased the moste3

Verbatim

e1
“The seedlings of six wild species in Elymus were treated with drought stress”
✓ located verbatim in the source · abstract, characters 0–76

e3
“The leaf relative water content in XZD4 from Tibet decreased the lessest,E.escelsus and E.purpuraristatus from Xinjiang decreased the most”
✓ located verbatim in the source · abstract, characters 602–740

Title

Physiological Change of Six Wild Species in Elymus under Drought Stress at Seedling Stage

LI Lin-hang 2008

Other claims from this paper (14)

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Mulltingia calabura had a significant reduction in relative water content.

Taxon: Mulltingia calaburae0
Outcome: RWCe0
Direction: decreasee0

Verbatim

e0
“A significant decrease in RWC was noticed in Mulltingia calabura”
✓ located verbatim in the source · abstract, characters 648–712

Title

Dust pollution monitoring by higher groups of plants near stone quarrying industry - A case study in Narasapura-Kolar District - Karnataka

Pradeep K. Naik; D. Ushamalini; R. Somashekar 2007

Other claims from this paper (3)

Observation Mulltingia calabura had the maximum dust holding capacity.
Observation Terminalia chebula showed the maximum chlorophyll decrease.
Association Dust pollution varied among plant species with leaf and tree features.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Water deficit significantly decreased chlorophyll content relative to control.

Taxon: Zea mays L.Zea mayse1
Treatment: stressed plante0
Outcome: chlorophyll contente0
Direction: decreasee0
Comparator: controle0

Verbatim

e0
“The significant decrease of chlorophyll content was obtained in stressed plant than control”
✓ located verbatim in the source · abstract, characters 713–804

e1
“leaves of Zea mays L.”
✓ located verbatim in the source · abstract, characters 101–122

Title

Alleviation of Water Deficit Stress Effects by Foliar Application of Ascorbic Acid on Zea mays L.

A. Dolatabadian; S. A. M. Modarres Sanavy; M. Sharifi Journal of Agronomy and Crop Science 2009. doi:10.1111/j.1439-037x.2009.00382.x

Other claims from this paper (10)

Intervention effect Water deficit increased superoxide dismutase, peroxidase and catalase activities in maize leaves.
Intervention effect Water deficit increased polyphenol oxidase activity in maize leaves.
Intervention effect Foliar ascorbic acid reduced stress-induced antioxidant enzyme activities.
Intervention effect Ascorbic acid decreased proline in water-deficit-stressed maize.
Intervention effect Ascorbic acid decreased malondialdehyde in water-deficit-stressed maize.
Observation Ascorbate was oxidized to dehydroascorbate in maize leaves.
Observation Total ascorbate decreased in maize leaves.
Observation Dehydroascorbate increased in maize leaves.
Mechanism Ascorbic acid reduced harmful reactive oxygen species effects and improved water stress resistance.
Recommendation The authors suggested ascorbic acid treatment may improve stressed plants in arid and semi-arid regions.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Under withholding irrigation, the decrease in relative water content, net photosynthesis and stomatal conductance was more acute in ‘Meski’ than in ‘Chemlali’.

Taxon: olive (Olea europaea L.)Olea europaeae0
Material: Meskie2
Treatment: Withholding irrigatione1
Outcome: relative water content (RWC), net photosynthesis rate and stomatal conductancee1
Direction: more acutee2
Comparator: Chemlalie2

Verbatim

e0
“studied in leaves of two olive (Olea europaea L.) cultivars, ‘Meski’ and ‘Chemlali’”
✓ located verbatim in the source · abstract, characters 109–192

e1
“Withholding irrigation decreased the relative water content (RWC), net photosynthesis rate and stomatal conductance in leaves of both cultivars”
✓ located verbatim in the source · abstract, characters 383–526

e2
“This decrease was more acute in ‘Meski’ than in ‘Chemlali’”
✓ located verbatim in the source · abstract, characters 528–586

Title

Defense mechanisms against water deficit in two olive (Olea europaeaL.) cultivars ‘Meski’ and ‘Chemlali’

M. Ennajeh; A. M. Vadel; H. Khemira; et al. The Journal of Horticultural Science and Biotechnology 2006. doi:10.1080/14620316.2006.11512035

Other claims from this paper (11)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Water stress decreased leaf relative water content, gas exchanges and plant growth in poplars.

Taxon: poplarsPopuluse1
Treatment: water stresse1
Outcome: leaf relative water content, gas exchanges, plant growthe1
Direction: decreasee1

Not reportedComparator

Verbatim

e1
“Under water stress, poplars showed a series of biochemical adjustments and morphological changes as follows: a decrease in leaf relative water content, gas exchanges, plant growth and dry mass accumulation”
✓ located verbatim in the source · abstract, characters 584–789

Title

Populus from high altitude has more efficient protective mechanisms under water stress than from low‐altitude habitats: a study in greenhouse for cuttings

Chunying Yin; Xueyong Pang; Yanbao Lei Physiologia Plantarum 2009. doi:10.1111/j.1399-3054.2009.01251.x

Other claims from this paper (17)

Intervention effect Water stress decreased dry mass accumulation in poplars.
Intervention effect Water stress increased the relative allocation to roots in poplars.
Intervention effect Water stress increased osmolyte contents in poplars, including total amino acids.
Intervention effect Water deficit increased electrolyte leakage, malondialdehyde and carbonyl content in poplars.
Intervention effect Water deficit increased hydrogen peroxide content in poplars.
Intervention effect Water stress enhanced activities of ascorbate peroxidase, guaiacol peroxidase and glutathione reductase in poplars.
Intervention effect Water stress enhanced ascorbic acid content in poplars.
Intervention effect Water stress reduced amounts of leaf pigments in poplars.
Association P. przewalskii allocated more to root dry mass than P. cathayana under water stress.
Association P. przewalskii had a higher net photosynthesis rate than P. cathayana under water stress.
Association P. przewalskii accumulated more osmolytes than P. cathayana under water stress.
Association P. przewalskii had stronger antioxidant activities than P. cathayana under water stress.
Association P. przewalskii had a lower chlorophyll/carotenoid ratio than P. cathayana under water stress.
Association P. przewalskii had lower electrolyte leakage, MDA and C=O than P. cathayana under water stress.
Association P. przewalskii had lower hydrogen peroxide content than P. cathayana under water stress.
Observation The two poplar species differed significantly in the extent of morphological and biochemical changes.
Mechanism P. przewalskii from high altitude may have more efficient protective mechanisms than P. cathayana from low altitude.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Relative water content decreased under salinity.

Taxon: peaLathyrus oleraceust0
Treatment: salinitye1
Outcome: relative water contente0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“These changes were associated with a decrease in the relative water content and the K+ concentrations”
✓ located verbatim in the source · abstract, characters 512–613

t0
“plants of pea (Pisum sativum L. cv. EC 33866)”
✓ located verbatim in the source · abstract, characters 73–118

e1
“Salinity affected all of the considered parameters. Thus, high NaCl concentrations caused a great reduction in growth parameters”
✓ located verbatim in the source · abstract, characters 294–422

Title

Effect of salt stress on growth and biochemical parameters ofPisum sativumL.

Parvaiz Ahmad; Riffat Jhon Archives of Agronomy and Soil Science 2005. doi:10.1080/03650340500274151

Other claims from this paper (7)

Intervention effect High NaCl reduced leaf and root fresh and dry weights.
Intervention effect Leaf number was less affected by high NaCl.
Intervention effect K+ concentration decreased under salinity.
Intervention effect Proline content increased under salinity.
Intervention effect Sugar content increased under salinity.
Intervention effect Leaf nitrate reductase activity decreased under salinity.
Intervention effect Leaf chlorophyll decreased under salinity.

“decrease in relative water content”

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