Paper · 1982 · Physiologia Plantarum

Accumulation of free proline and glycine betaine in Aster tripolium subjected to a saline shock: A kinetic study related to light period

G. Goas; M. Goas; F. Larher

11
claims
20
verbatim quotes
43
citations
1
research areas
—
Not open access

Abstract

On transferring three‐week‐old plants of Aster tripolium L. growing in a half strength Hoagland's medium to the same medium containing 333 m M NaCl a very quick uptake of salt and, after a lag phase of 3 to 5 h, an increase in free proline level was observed. During the time course of imino acid storage, the accumulation rates were higher in the light than in the dark, thereby suggesting some kind of photocontrol on solute metabolism. At zero time, high levels of glycine betaine were present in young plants grown without salt. However, after the application of saline shock, the betaine level also increased significantly. The highest rate of betaine accumulation was detected during the third day of treatment when the rate of proline storage decreased. Glycine betaine storage could also be linked to light dependent processes; whatever its importance in response to salt shock was, the levels observed were lower than those of plants directly grown on 333 m M NaCl for three weeks. When saline stressed plants were transferred to a medium without NaCl, the proline level quickly decreaed while that of glycine betaine remained stable.

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Claims 11

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Saline shock caused quick salt uptake.

Treatment
333 m M NaCle0
Outcome
uptake of salte0
Direction
quicke0
Comparator
half strength Hoagland's mediume0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“On transferring three‐week‐old plants of Aster tripolium L. growing in a half strength Hoagland's medium to the same medium containing 333 m M NaCl a very quick uptake of salt and, after a lag phase of 3 to 5 h, an increase in free proline level was observed.”

✓ located verbatim in the source · abstract, characters 0–259 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Free proline increased after a 3 to 5 h lag under saline shock.

Treatment
333 m M NaCle0
Outcome
free proline levele0
Direction
increasee0
Qualifier
after a lag phase of 3 to 5 he0
Comparator
half strength Hoagland's mediume0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“On transferring three‐week‐old plants of Aster tripolium L. growing in a half strength Hoagland's medium to the same medium containing 333 m M NaCl a very quick uptake of salt and, after a lag phase of 3 to 5 h, an increase in free proline level was observed.”

✓ located verbatim in the source · abstract, characters 0–259 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Imino acid accumulation rates were higher in light than dark.

Treatment
in the lighte0
Outcome
accumulation ratese0
Direction
highere0
Comparator
in the darke0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“During the time course of imino acid storage, the accumulation rates were higher in the light than in the dark, thereby suggesting some kind of photocontrol on solute metabolism.”

✓ located verbatim in the source · abstract, characters 260–438 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Young plants without salt had high glycine betaine levels.

Outcome
high levels of glycine betainee0
Qualifier
grown without salte0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“At zero time, high levels of glycine betaine were present in young plants grown without salt.”

✓ located verbatim in the source · abstract, characters 439–532 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Saline shock significantly increased betaine level.

Treatment
saline shocke0
Outcome
betaine levele0
Direction
increasede0

Not reportedComparator

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“However, after the application of saline shock, the betaine level also increased significantly.”

✓ located verbatim in the source · abstract, characters 533–628 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Betaine accumulation rate peaked on the third treatment day.

Outcome
rate of betaine accumulatione0
Direction
higheste0
Qualifier
third day of treatmente0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest rate of betaine accumulation was detected during the third day of treatment when the rate of proline storage decreased.”

✓ located verbatim in the source · abstract, characters 629–760 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Proline storage rate decreased on the third treatment day.

Outcome
rate of proline storagee0
Direction
decreasede0
Qualifier
third day of treatmente0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest rate of betaine accumulation was detected during the third day of treatment when the rate of proline storage decreased.”

✓ located verbatim in the source · abstract, characters 629–760 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑
Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Betaine storage was linked to light-dependent processes.

Treatment
light dependent processese0
Outcome
Glycine betaine storagee0

Not reportedDirection

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Glycine betaine storage could also be linked to light dependent processes;”

✓ located verbatim in the source · abstract, characters 761–835 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Saline-shocked plants had lower betaine levels than plants grown for three weeks on salt.

Outcome
levels observede0
Direction
lowere0
Comparator
plants directly grown on 333 m M NaCl for three weekse0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the levels observed were lower than those of plants directly grown on 333 m M NaCl for three weeks.”

✓ located verbatim in the source · abstract, characters 891–990 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Removing NaCl quickly decreased proline level.

Treatment
a medium without NaCle0
Outcome
proline levele0
Direction
decreaede0
Comparator
saline stressed plantse0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“When saline stressed plants were transferred to a medium without NaCl, the proline level quickly decreaed while that of glycine betaine remained stable.”

✓ located verbatim in the source · abstract, characters 991–1143 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Removing NaCl left glycine betaine level stable.

Treatment
a medium without NaCle0
Outcome
glycine betainee0
Direction
remained stablee0
Comparator
saline stressed plantse0

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

Tripolium pannonicum subsp. tripolium
Tripolium pannonicum subsp. tripolium · Taxon · picture of the speciesEvelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“When saline stressed plants were transferred to a medium without NaCl, the proline level quickly decreaed while that of glycine betaine remained stable.”

✓ located verbatim in the source · abstract, characters 991–1143 · show in text ↑
t0

“Aster tripolium”

✓ located verbatim in the source · title, characters 52–67 · show in text ↑

salinity · molecular: metabolites · Tripolium pannonicum (sea starwort)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 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.