Paper · 2010 · AFRICAN JOURNAL OF BIOTECHNOLOGY

Effect of salt stress on growth, inorganic ion and proline accumulation in Thai aromatic rice, Khao Dawk Mali 105, callus culture

Jaruwan Summart; Pornthap Thanonkeo; Sanha Panichajakul; et al.

6
claims
9
verbatim quotes
99
citations
1
research areas
✓
Open access

Abstract

The inhibitory effect of salt stress in rice is complex and is one of the main reasons for reduction of plant growth and crop productivity. In the present study, the response of rice callus cultivar Khao Dawk Mali 105 (KDML105), commonly known as Thai jasmine rice, to salt stress was examined. Callus cultures of KDML105 rice were exposed to salt stress by placing on Murashige and Skoog (MS) medium containing 250 mM NaCl. Growth, water content, proline and inorganic ion content in rice cells were measured during stress treatment for 8 - 10 days. After prolonged exposure to salt stress, growth and water content of rice cells were progressively decreased. Rice cells accumulated high level of Na+ during stress, whereas the accumulation of K+ and Ca2+ was decreased. High level of Na+ inside the cells inhibited the K+ uptake resulted in increase level of the Na+/K+ ratio. In addition, salt stress also caused an increase in the accumulation of proline. This result suggested that proline may play a crucial role in protecting the KDML105 rice cells under salt stress.

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Claims 6

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Prolonged salt stress progressively reduced rice cell growth and water content.

Treatment
salt stresse0
Outcome
growth and water content of rice cellse0
Direction
decreasede0

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

“After prolonged exposure to salt stress, growth and water content of rice cells were progressively decreased.”

✓ located verbatim in the source · abstract, characters 551–660 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Rice cells accumulated high Na+ under salt stress.

Treatment
stresse0
Outcome
level of Na+e0
Direction
highe0

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

“Rice cells accumulated high level of Na+ during stress”

✓ located verbatim in the source · abstract, characters 661–715 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Rice cell K+ and Ca2+ accumulation decreased under stress.

Treatment
salt stresst0
Outcome
accumulation of K+ and Ca2+e0
Direction
decreasede0

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

“whereas the accumulation of K+ and Ca2+ was decreased.”

✓ located verbatim in the source · abstract, characters 717–771 · show in text ↑
t0

“salt stress on growth, inorganic ion and proline accumulation in Thai aromatic rice”

✓ located verbatim in the source · title, characters 10–93 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

High intracellular Na+ inhibited K+ uptake and increased the Na+/K+ ratio.

Compound
Na+e0
Outcome
K+ uptakee0
Qualifier
increase level of the Na+/K+ ratioe0

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

“High level of Na+ inside the cells inhibited the K+ uptake resulted in increase level of the Na+/K+ ratio.”

✓ located verbatim in the source · abstract, characters 772–878 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 89–93 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Salt stress increased proline accumulation.

Treatment
salt stresse0
Outcome
accumulation of prolinee0
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

“salt stress also caused an increase in the accumulation of proline.”

✓ located verbatim in the source · abstract, characters 892–959 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 89–93 · show in text ↑
Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

The authors suggested that proline protects KDML105 rice cells under salt stress.

Compound
prolinee0
Outcome
protecting the KDML105 rice cellse0
Qualifier
under salt stresse0

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

“proline may play a crucial role in protecting the KDML105 rice cells under salt stress.”

✓ located verbatim in the source · abstract, characters 987–1074 · show in text ↑

salinity · growth · Oryza sativa (rice)Positive and negative results

296 papers: 37 positive, 259 negative or no effect

258 papers in the same direction as this paper · 37 in the opposite direction

  1. negative
  2. negative
  3. positive

292 papers more in this group

See all 296 papers →

salinity · physiology: ion balance · Oryza sativa (rice)Results agree

30 papers: 0 positive, 30 negative or no effect

29 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

26 papers more in this group

See all 30 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.