Search claims · PlantClaims

Associationobservedoriginal resultmeasured

Claim · model-written summary

The absolute ribonuclease activity appeared to decrease in correlation with a decrease in total nitrogen content in senescing pea shoot apices.

Taxon: Pisum sativumLathyrus oleraceuse0
Gene: ribonucleasee3
Outcome: absolute activitye3
Direction: decreasee3
Qualifier: in correlation with a decrease in total nitrogen contente3

Verbatim

e0
“Senescence of shoot apices of Pisum sativum L.”
✓ located verbatim in the source · abstract, characters 0–46

e3
“The specific activity of ribonuclease increased as senescence progressed while the absolute activity appeared to decrease in correlation with a decrease in total nitrogen content”
✓ located verbatim in the source · abstract, characters 574–752

Title

RNA and Protein Metabolism in Senescent Shoot Apices of 'Alaska' Peas

Paul R. Ecklund; Thomas C. Moore American Journal of Botany 1969. doi:10.2307/2440855

Other claims from this paper (6)

Associationobservedoriginal resultmeasured

Claim · model-written summary

The absolute activity of ribonuclease appeared to decrease in correlation with a decrease in total nitrogen content.

Taxon: Pisum sativumLathyrus oleraceuse0
Compound: total nitrogen contente3
Outcome: absolute activitye3
Direction: decreasee3

Verbatim

e0
“Senescence of shoot apices of Pisum sativum L. ‘Alaska’ as measured by cessation of stem elongation was delayed by removal of flowers”
✓ located verbatim in the source · abstract, characters 0–133

e3
“the absolute activity appeared to decrease in correlation with a decrease in total nitrogen content”
✓ located verbatim in the source · abstract, characters 655–754

Title

RNA AND PROTEIN METABOLISM IN SENESCENT SHOOT APICES OF ‘ALASKA’ PEAS

Paul R. Ecklund; Thomas C. Moore American Journal of Botany 1969. doi:10.1002/j.1537-2197.1969.tb07539.x

Other claims from this paper (8)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

High oxygen pressure produced a progressive decrease in CO2 output of pea tissue.

Taxon: peasLathyrus oleraceuse1
Treatment: high pressures of oxygene1
Outcome: CO 2 outpute1
Direction: decreasee1
Qualifier: progressivee1

Not reportedComparator

Verbatim

e1
“Subjecting peas to high pressures of oxygen produced a progressive decrease in CO 2 output with accumulation of citrate, pyruvate, alcohol and acetate”
✓ located verbatim in the source · abstract, characters 9–159

Title

STUDIES IN THE RESPIRATORY AND CARBOHYDRATE METABOLISM OF PLANT TISSUES

J. BARKER New Phytologist 1965. doi:10.1111/j.1469-8137.1965.tb05392.x

Other claims from this paper (8)

Observationobservedoriginal resultmeasured

Claim · model-written summary

The action spectrum for chloroplast volume decrease had a shoulder at 700-715 mμ.

Taxon: pea plantsLathyrus oleraceuse1
Outcome: action spectrum for the chloroplast volume decreasee0
Value: 700-715 mμe0

Verbatim

e0
“An action spectrum for the chloroplast volume decrease in vivo had a shoulder at 700-715 mμ”
✓ located verbatim in the source · abstract, characters 540–631

e1
“using chloroplasts isolated within two minutes of harvesting pea plants”
✓ located verbatim in the source · abstract, characters 122–193

Title

Energetic basis of the light-induced chloroplast shrinkage in vivo

PARK S. NOBEL Plant and Cell Physiology 1968. doi:10.1093/oxfordjournals.pcp.a079367

Other claims from this paper (5)

Intervention effect DCMU decreased light-induced chloroplast shrinkage by 11 to 20%.
Intervention effect Tri-Fl-CCP inhibited light-induced chloroplast shrinkage by 80%.
Intervention effect Nigericin completely abolished light-induced chloroplast shrinkage.
Mechanism The authors interpret chloroplast shrinkage as dependent on a high energy state or ATP.
Mechanism The authors suggest illumination-driven chloroplast volume change may increase photosynthetic efficiency.

Associationobservedoriginal resultmeasured

Claim · model-written summary

The decreased CO2 output in high oxygen was associated with a decrease in adenosine triphosphate content in pea tissue.

Taxon: peasLathyrus oleraceuse1
Treatment: oxygene6
Outcome: content of adenosine triphosphatee6
Direction: decreasee6

Verbatim

e1
“Subjecting peas to high pressures of oxygen produced a progressive decrease in CO 2 output with accumulation of citrate, pyruvate, alcohol and acetate”
✓ located verbatim in the source · abstract, characters 9–159

e6
“Thus in the present experiments the decreased CO 2 output in oxygen was associated with a decrease in content of adenosine triphosphate”
✓ located verbatim in the source · abstract, characters 917–1052

Title

STUDIES IN THE RESPIRATORY AND CARBOHYDRATE METABOLISM OF PLANT TISSUES

J. BARKER New Phytologist 1965. doi:10.1111/j.1469-8137.1965.tb05392.x

Other claims from this paper (8)

Intervention effect High oxygen pressure produced a progressive decrease in CO2 output of pea tissue.
Intervention effect High oxygen pressure increased the accumulation of citrate, pyruvate and alcohol in pea tissue.
Intervention effect High oxygen pressure increased acetate accumulation in pea tissue.
Intervention effect High oxygen pressure was accompanied by decreases in adenosine triphosphate in pea tissue.
Intervention effect High oxygen pressure was accompanied by decreases in glycolytic intermediates in pea tissue.
Intervention effect Fructose diphosphate decreased more rapidly initially in oxygen than in air in pea tissue, in three of four experiments.
Mechanism Oxygen poisoning appears to block certain respiratory pathways in pea tissue, probably most importantly at aconitase.
Mechanism The decrease in fructose diphosphate appears to reduce the rate of glycolysis in pea tissue.

Mechanismobservedoriginal resultmeasured

Claim · model-written summary

A fourth phase respiration decrease seemed due to cotyledon subcellular disorganization.

Taxon: PISUM SATIVUMLathyrus oleraceust0
Organ / stage: cotyledonse0
Outcome: decrease in respiration ratee0
Qualifier: disorganization of the subcellular structuree0

Verbatim

e0
“the decrease in respiration rate in the fourth phase seems to be due to a disorganization of the subcellular structure of the cotyledons”
✓ located verbatim in the source · abstract, characters 839–975

t0
“PISUM SATIVUM”
✓ located verbatim in the source · title, characters 64–77

Title

RESPIRATION RATE AND MITOCHONDRIAL ACTIVITY IN THE COTYLEDONS OFPISUM SATIVUML. DURING GERMINATION

C. Kollöffel Acta Botanica Neerlandica 1967. doi:10.1111/j.1438-8677.1967.tb00041.x

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Potassium content of peas showed a slight decrease towards the end of the experiments.

Taxon: peasLathyrus oleraceuse3
Compound: potassiume3
Outcome: contente3
Direction: slight decreasee3

Verbatim

e3
“while the content of phosphorus in maize and that of potassium in peas exhibited a slight increase and a slight decrease towards the end of the experiments”
✓ located verbatim in the source · abstract, characters 394–549

Title

The dynamics of the accumulation of nitrogen, phosphorus and potassium in maize and peas in the first growth phases at constant mineral nutrition

J. Minář; Z. Laštůvka Biologia Plantarum 1969. doi:10.1007/bf02921733

Other claims from this paper (16)

Observation Relative growth rate of maize and pea plants dropped by about 50% within 32 days of cultivation.
Observation Nitrogen content of maize decreased substantially during growth.
Observation Potassium content of maize decreased substantially during growth.
Observation Nitrogen content of peas decreased substantially during growth.
Observation Phosphorus content of peas decreased substantially during growth.
Observation Phosphorus content of maize showed a slight increase towards the end of the experiments.
Observation Relative absorption rate of nitrogen in maize was maximum after 28 days of cultivation.
Observation Relative absorption rate of phosphorus in maize was maximum after 28 days of cultivation.
Observation Relative absorption rate of potassium in maize reached a maximum immediately at the beginning of growth.
Observation Nitrogen absorption in peas reached maximum values after 28 to 30 days.
Observation Potassium absorption in peas reached maximum values after 28 to 30 days.
Observation Phosphorus absorption in peas was highest at the beginning of growth.
Association Maize accumulated relatively less potassium than peas.
Association Peas accumulated more nitrogen than maize.
Association Peas accumulated more potassium than maize.
Observation The ratio of accumulated N:P:K ions changed during growth in maize.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Root meristematic foci formation in pea stem sections accompanied a decrease in the C6/C1 ratio.

Taxon: peaLathyrus oleraceust0
Organ / stage: root meristematic focie0
Outcome: C6/C1 ratioe0
Direction: decreasee0

Verbatim

t0
“pea stem section”
✓ located verbatim in the source · title, characters 25–41

e0
“The formation of root meristematic foci in the pericycle region of sections was accompanied by the decrease of the C6/C1 ratio”
✓ located verbatim in the source · abstract, characters 170–296

Title

Catabolism of glucose in pea stem section during root formation and its inhibition by kinetin and ethionine

Miroslav Kamínek; Anna Štemberová Biologia Plantarum 1967. doi:10.1007/bf02929731

Other claims from this paper (9)

Association Pentose phosphate cycle participation in glucose oxidation increased during root meristematic foci formation.
Observation The glucose catabolism changes also occurred when ethionine prevented root formation, so were not specific to meristematic foci formation.
Association Growth of newly formed pea roots was closely associated with rising C6/C1 values.
Intervention effect Ethionine inhibition of root formation increased CO2 release from glucose carbon one.
Intervention effect Kinetin treatment raised C6/C1 values in pea stem sections during the first 64 hours.
Intervention effect Kinetin treatment decreased pentose phosphate cycle activity in pea stem sections during the first 64 hours.
Intervention effect Kinetin prevented root formation in pea stem sections.
Intervention effect Kinetin stimulated lateral bud growth in pea stem sections.
Association Later secondary xylem formation accompanied pentose phosphate cycle activation.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Ethanol extraction of the transparent zone showed a remarkable decrease in optical density.

Taxon: garden peaLathyrus oleraceuse0
Treatment: Ethanol extraction of the transparent zonee6
Outcome: optical densitye7
Direction: decreasee7

Not reportedComparator

Verbatim

e0
“garden pea pods versus Ascochyta pisi”
✓ located verbatim in the source · abstract, characters 330–367

e6
“Ethanol extraction of the transparent zone thus appeared on the agar media around the colony showed a very low inhibitory action on the conidia germination of Glomerella cingulata”
✓ located verbatim in the source · abstract, characters 2377–2556

e7
“a remarkable decrease in its optical density”
✓ located verbatim in the source · abstract, characters 2567–2611

Title

Relationship between the host specificity of pathogen and phytoalexin

Kazuo UEHARA Japanese Journal of Phytopathology 1964. doi:10.3186/jjphytopath.29.103

Other claims from this paper (6)

Intervention effect Pea phytoalexin strongly inhibited the growth of Piricularia oryzae, which cannot infect pea.
Intervention effect Pea phytoalexin inhibited the growth of Glomerella cingulata to a medium extent.
Intervention effect Pea phytoalexin inhibited Ascochyta pisi very weakly.
Observation Ascochyta pisi and Fusarium oxysporum detoxify pea phytoalexin.
Observation Both fungi tested showed PA-decomposing ability.
Intervention effect Ethanol extraction of the transparent zone showed very low inhibitory action on conidia germination of Glomerella cingulata.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Lower light intensity decreased the maximum rate.

Taxon: peaLathyrus oleraceuse1
Treatment: a decrease in light-intensitye0
Outcome: maximum ratee0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“a decrease in light-intensity that was sufficient to decrease the maximum rate”
✓ located verbatim in the source · abstract, characters 763–841

e1
“isolated pea chloroplasts”
✓ located verbatim in the source · abstract, characters 51–76

Title

Calvin-cycle intermediates in relation to induction phenomena in photosynthetic carbon dioxide fixation by isolated chloroplasts

CW Baldry; DA Walker; C Bucke Biochemical Journal 1966. doi:10.1042/bj1010642

Other claims from this paper (9)

Intervention effect Small quantities of Calvin-cycle intermediates shortened carbon-fixation induction periods in pea chloroplasts.
Observation Additional fixation exceeded the amount expected from direct stoichiometric conversion to ribulose 1,5-diphosphate.
Observation Illuminated chloroplasts without added substrates formed soluble products that stimulated fixation by fresh chloroplasts.
Intervention effect Washing chloroplasts lengthened induction periods.
Intervention effect Catalytic quantities of Calvin-cycle intermediates restored induction periods to previous values after washing.
Intervention effect Lower temperature extended the induction period.
Intervention effect Lower light intensity largely did not affect the induction period.
Mechanism The authors attribute induction lags to loss of Calvin-cycle intermediates through the intact chloroplast envelope.
Mechanism The authors conclude that new synthesis from carbon dioxide in Calvin-cycle reactions replaces lost intermediates.

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