Abstract
Induction of phytoalexins(PA) formation in suspension-cultured rice cells was studied with chemical method.The results showed that the defense compounds,flavonoid phytoalexins sakuranetin(SA) and diterpenoid phytoalexin momilactone A(MA) were elicited and accumulated in the suspension-cultured cells.Of the two PA,MA showed a remarkable induction.Metal ions of silver,potassium,calcium,sodium,zinc,magnesium and copper were added to medium with a concentration of 1.5 mmol/L,which efficiently triggered the accumulation of MA or SA.The accumulation of MA could also be elicited efficiently by ammonium ions added to the medium at concentration of 1.5 mmol/L.It indicated the presence of recognition systems specific for these compounds in rice cells.Every 20 mL cultured cells produced 158.9~1337.9 μg MA and 0.16~(7.6) μg SA,respectively,indicating the importance of this phenomenon in the defense system of rice plant and presumption of these PA for developing new type pesticide without environmental pollution.Fig 1,Tab 1,Ref 9
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Claims 6
Claim · model-written summary
Sakuranetin and momilactone A accumulated in suspension-cultured rice cells.
- Taxon
- Rice
Oryza sativat0 - Organ / stage
- suspension-cultured cellse0
- Outcome
- sakuranetin(SA) and diterpenoid phytoalexin momilactone A(MA)e0
- Direction
- accumulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“flavonoid phytoalexins sakuranetin(SA) and diterpenoid phytoalexin momilactone A(MA) were elicited and accumulated in the suspension-cultured cells”
t0“Rice Cells”
Claim · model-written summary
Momilactone A showed a remarkable induction relative to sakuranetin.
- Taxon
- RiceOryza sativat0
- Outcome
- MAe0
- Direction
- remarkable inductione0
- Comparator
- two PAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the two PA,MA showed a remarkable induction”
t0“Rice Cells”
Claim · model-written summary
Added silver, potassium, calcium, sodium, zinc, magnesium and copper ions triggered momilactone A or sakuranetin accumulation in rice cells.
- Taxon
- RiceOryza sativat0
- Treatment
- Metal ions of silver,potassium,calcium,sodium,zinc,magnesium and coppere0
- Outcome
- accumulation of MA or SAe0
- Direction
- triggerede0
- Value
- 1.5 mmol/Le0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Metal ions of silver,potassium,calcium,sodium,zinc,magnesium and copper were added to medium with a concentration of 1.5 mmol/L,which efficiently triggered the accumulation of MA or SA”
t0“Rice Cells”
Claim · model-written summary
Ammonium ions at 1.5 mmol/L elicited momilactone A accumulation in rice cells.
- Taxon
- RiceOryza sativat0
- Treatment
- ammonium ionse0
- Outcome
- accumulation of MAe0
- Direction
- elicitede0
- Value
- 1.5 mmol/Le0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accumulation of MA could also be elicited efficiently by ammonium ions added to the medium at concentration of 1.5 mmol/L”
t0“Rice Cells”
Claim · model-written summary
Every 20 mL of cultured rice cells produced 158.9~1337.9 μg momilactone A.
- Taxon
- RiceOryza sativat0
- Outcome
- MAe0
- Value
- 158.9~1337.9 μge0
- Qualifier
- Every 20 mL cultured cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Every 20 mL cultured cells produced 158.9~1337.9 μg MA”
t0“Rice Cells”
Claim · model-written summary
Every 20 mL of cultured rice cells produced 0.16~(7.6) μg sakuranetin.
- Taxon
- RiceOryza sativat0
- Outcome
- SAe0
- Value
- 0.16~(7.6) μge0
- Qualifier
- Every 20 mL cultured cellse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Every 20 mL cultured cells produced 158.9~1337.9 μg MA and 0.16~(7.6) μg SA”
t0“Rice Cells”
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See all 22 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.