Paper · 1988 · Australian Journal of Plant Physiology

Salinity Results in Polyamine Accumulation in Early Rice ( Oryza sativa L.). Seedlings

R Basu; N Maitra; B Ghosh

13
claims
23
verbatim quotes
58
citations
1
research areas
—
Not open access

Abstract

Saline (NaCl) stress in germinated seedlings of rice cv. Rupsail causes an increase in polyamine content and concomitantly an enhancement of arginine decarboxylase (ADC) activity; in the case of putrescine, the increase is 100%. The responsiveness of coleoptiles and roots is different; ADC activity is maximum in roots and coleoptiles at 50 mM and 100 mM respectively. Difluoromethyl arginine, a potent inhibitor of ADC, reduces both polyamine accumulation and ADC activity. NaCl can enhance the activity of ADC by 1.6-fold in vitro. [14C]leucine incorporation into protein at 400 mM NaCl is decreased 4- and 10-fold in coleoptiles and roots, respectively. Efflux of sugar, amino acid, polyamines and total electrolytes increased gradually with the increase in concentration of salt. Influx of Na+ and Cl- and efflux of K+ in coleoptiles and roots are directly proportional to the concentration of NaCl applied.

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Claims 13

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NaCl increased rice seedling polyamine content.

Material
Rupsaile0
Treatment
NaCle0
Outcome
polyamine contente0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Saline (NaCl) stress in germinated seedlings of rice cv. Rupsail causes an increase in polyamine content”

✓ located verbatim in the source · abstract, characters 0–104 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NaCl increased ADC activity in rice seedlings.

Material
Rupsaile0
Treatment
NaCle0
Gene
arginine decarboxylase (ADC)e0
Outcome
arginine decarboxylase (ADC) activitye0
Direction
enhancemente0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Saline (NaCl) stress in germinated seedlings of rice cv. Rupsail causes an increase in polyamine content and concomitantly an enhancement of arginine decarboxylase (ADC) activity”

✓ located verbatim in the source · abstract, characters 0–178 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NaCl increased putrescine content by 100%.

Material
Rupsaile0
Treatment
NaCle0
Outcome
putrescinee0
Direction
increasee0
Value
100%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Saline (NaCl) stress in germinated seedlings of rice cv. Rupsail causes an increase in polyamine content and concomitantly an enhancement of arginine decarboxylase (ADC) activity; in the case of putrescine, the increase is 100%”

✓ located verbatim in the source · abstract, characters 0–227 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Root ADC activity was maximal at 50 mM NaCl.

Organ / stage
rootse0
Treatment
50 mMe0
Outcome
ADC activitye0
Direction
maximume0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“ADC activity is maximum in roots and coleoptiles at 50 mM and 100 mM respectively”

✓ located verbatim in the source · abstract, characters 287–368 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Coleoptile ADC activity was maximal at 100 mM NaCl.

Organ / stage
coleoptilese0
Treatment
100 mMe0
Outcome
ADC activitye0
Direction
maximume0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“ADC activity is maximum in roots and coleoptiles at 50 mM and 100 mM respectively”

✓ located verbatim in the source · abstract, characters 287–368 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Difluoromethyl arginine reduced polyamine accumulation and ADC activity.

Treatment
Difluoromethyl argininee0
Outcome
polyamine accumulation and ADC activitye0
Direction
reducese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Difluoromethyl arginine, a potent inhibitor of ADC, reduces both polyamine accumulation and ADC activity”

✓ located verbatim in the source · abstract, characters 370–474 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

NaCl enhanced ADC activity 1.6-fold in vitro.

Treatment
NaCle0
Outcome
activity of ADCe0
Direction
enhancee0
Value
1.6-folde0
Setting
in vitroe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“NaCl can enhance the activity of ADC by 1.6-fold in vitro”

✓ located verbatim in the source · abstract, characters 476–533 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 400 mM NaCl, coleoptile leucine incorporation into protein decreased fourfold.

Organ / stage
coleoptilese0
Treatment
400 mM NaCle0
Outcome
[14C]leucine incorporation into proteine0
Direction
decreasede0
Value
4-e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“[14C]leucine incorporation into protein at 400 mM NaCl is decreased 4- and 10-fold in coleoptiles and roots, respectively”

✓ located verbatim in the source · abstract, characters 535–656 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 400 mM NaCl, root leucine incorporation into protein decreased tenfold.

Organ / stage
rootse0
Treatment
400 mM NaCle0
Outcome
[14C]leucine incorporation into proteine0
Direction
decreasede0
Value
10-folde0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“[14C]leucine incorporation into protein at 400 mM NaCl is decreased 4- and 10-fold in coleoptiles and roots, respectively”

✓ located verbatim in the source · abstract, characters 535–656 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Salt concentration increased sugar, amino acid and polyamine efflux.

Treatment
concentration of salte0
Outcome
Efflux of sugar, amino acid, polyaminese0
Direction
increasede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Efflux of sugar, amino acid, polyamines and total electrolytes increased gradually with the increase in concentration of salt”

✓ located verbatim in the source · abstract, characters 658–783 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Salt concentration increased total electrolyte efflux.

Treatment
concentration of salte0
Outcome
total electrolytese0
Direction
increasede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Efflux of sugar, amino acid, polyamines and total electrolytes increased gradually with the increase in concentration of salt”

✓ located verbatim in the source · abstract, characters 658–783 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Na+ and Cl- influx increased proportionally with NaCl concentration in coleoptiles and roots.

Organ / stage
coleoptiles and rootse0
Treatment
concentration of NaCl appliede0
Outcome
Influx of Na+ and Cl-e0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Influx of Na+ and Cl- and efflux of K+ in coleoptiles and roots are directly proportional to the concentration of NaCl applied”

✓ located verbatim in the source · abstract, characters 785–911 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

K+ efflux increased proportionally with NaCl concentration in coleoptiles and roots.

Organ / stage
coleoptiles and rootse0
Treatment
concentration of NaCl appliede0
Outcome
efflux of K+e0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Influx of Na+ and Cl- and efflux of K+ in coleoptiles and roots are directly proportional to the concentration of NaCl applied”

✓ located verbatim in the source · abstract, characters 785–911 · show in text ↑
t0

“Rice”

✓ located verbatim in the source · title, characters 52–56 · show in text ↑

sodium chloride · quality: protein · Oryza sativa (rice)Results agree

5 papers: 0 positive, 5 negative or no effect

4 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

1 paper more in this group

See all 5 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.