Abstract
스트레스 관련 화합물 및 병원균을 고구마 (Ipomoea batatas)잎에 처리하여 고구마 배양세포에서 분리한 산성 퍼옥시다제 swpa2 유전자의 발현을 RT-PCR로 분석하였다. Swpa2유전자는 건강한 식물체 조직에서는 발현되지 않았으나 각종 스트레스에 의해 발현이 유도되었다. Swpa2는 과산화수소 (440mM)처리에 의하여 강하게 발현이 유도되었고 NaCl (100mM), ABA (0.1mM), methyl jasmonate (MeJA, 0.1mM) 처리에 의하여도 발현이 유도되었다. 그러나 salicylic acid (SA)처리에 의해서는 발현이 유도되지 않아, 이 유전자는 SA와 MeJA의 신호전달에는 서로 다르게 관여함이 시사되었다. 또한 swpa2유전자는 무름병을 유발하는 박테리아(Pectobacterium chrysanthemii)의 감염에 의하여 강하게 발현되므로, 이 POD는 병저항성에 관여함을 알 수 있었다. 따라서 swpa2유전자는 각종 비생물학적 스트레스 뿐 아니라 생물학적 스트레스에 수반되는 산화 스트레스를 극복하는데 관여함이 강하게 제시되었다. Expression of an anionic peroxidase swpa2 gene isolated from cultured cells of sweetpotato (Ipomoea batatas) was investigated under various stress conditions by RT-PCR. The swpa2 gene was not expressed in any tissues of intact sweetpotato plant grown at the normal condition. The expression of this gene was strongly induced in leaf tissue by treatment of $H_2O$$_2$ (440mM). Treatment of NaCl (100mM), ABA (0.1mM) and methyl jasmonate(MeJA, 0.1mM) also induced the expression of swpa2 gene. Interestingly, salicylic acid (SA, 0.1 mM) did not induce the expression of swpa2 gene, indicating that anionic swpa2 POD is differently involved in SA and MeJA signaling pathways. In addition, swpa2 gene was strongly induced in sweetpoato leaf tissues infected with Pectobacterium chrysanthemi, indicating that swpa2 is involved in defense related to the pathogenesis of P. chrysanthemi in sweetpotato plants. These results strongly suggest that swpa2 gene is involved in overcoming oxidative stresses caused by both abiotic and biotic stress.
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Claims 10
Claim · model-written summary
The swpa2 gene was not expressed in any tissues of intact sweetpotato plants grown under normal conditions.
- Taxon
- Sweetpotato
_Flower.jpg?width=60)
Ipomoea batatast0 - Organ / stage
- any tissuese0
- Gene
- swpa2 genee0
- Outcome
- not expressede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
t0“Sweetpotato”
e0“The swpa2 gene was not expressed in any tissues of intact sweetpotato plant grown at the normal condition”
Claim · model-written summary
Hydrogen peroxide (440 mM) strongly induced swpa2 expression in sweetpotato leaf tissue.
- Taxon
- SweetpotatoIpomoea batatast0
- Organ / stage
- leaf tissuee0
- Treatment
- $H_2O$$_2$ (440mM)e0
- Outcome
- expression of this genee0
- Direction
- strongly inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweetpotato”
e0“The expression of this gene was strongly induced in leaf tissue by treatment of $H_2O$$_2$ (440mM)”
Claim · model-written summary
NaCl (100 mM) induced swpa2 expression in sweetpotato.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- NaCl (100mM)e0
- Gene
- swpa2 genee0
- Outcome
- expression of swpa2 genee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweetpotato”
e0“Treatment of NaCl (100mM), ABA (0.1mM) and methyl jasmonate(MeJA, 0.1mM) also induced the expression of swpa2 gene”
Claim · model-written summary
ABA (0.1 mM) induced swpa2 expression in sweetpotato.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- ABA (0.1mM)e0
- Gene
- swpa2 genee0
- Outcome
- expression of swpa2 genee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweetpotato”
e0“Treatment of NaCl (100mM), ABA (0.1mM) and methyl jasmonate(MeJA, 0.1mM) also induced the expression of swpa2 gene”
Claim · model-written summary
Methyl jasmonate (MeJA, 0.1 mM) induced swpa2 expression in sweetpotato.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- methyl jasmonate(MeJA, 0.1mM)e0
- Gene
- swpa2 genee0
- Outcome
- expression of swpa2 genee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweetpotato”
e0“Treatment of NaCl (100mM), ABA (0.1mM) and methyl jasmonate(MeJA, 0.1mM) also induced the expression of swpa2 gene”
Claim · model-written summary
Salicylic acid (SA, 0.1 mM) did not induce swpa2 expression in sweetpotato.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- salicylic acid (SA, 0.1 mM)e0
- Gene
- swpa2 genee0
- Outcome
- expression of swpa2 genee0
- Direction
- did not inducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweetpotato”
e0“salicylic acid (SA, 0.1 mM) did not induce the expression of swpa2 gene”
Claim · model-written summary
The swpa2 gene was strongly induced in sweetpotato leaf tissues infected with Pectobacterium chrysanthemi.
- Taxon
- SweetpotatoIpomoea batatast0
- Organ / stage
- leaf tissuese0
- Treatment
- infected with Pectobacterium chrysanthemie0
- Interactor
- Pectobacterium chrysanthemi
-_Bacterial_soft_rot.jpg?width=60)
Dickeya chrysanthemie0pathogen - Gene
- swpa2 genee0
- Outcome
- swpa2 gene was strongly inducede0
- Direction
- strongly inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
-_Bacterial_soft_rot.jpg?width=500)
Verbatim
t0“Sweetpotato”
e0“swpa2 gene was strongly induced in sweetpoato leaf tissues infected with Pectobacterium chrysanthemi”
Claim · model-written summary
The authors indicate that anionic swpa2 peroxidase is differently involved in SA and MeJA signaling pathways.
- Taxon
- SweetpotatoIpomoea batatast0
- Gene
- anionic swpa2 PODe0
- Outcome
- differently involved in SA and MeJA signaling pathwayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweetpotato”
e0“indicating that anionic swpa2 POD is differently involved in SA and MeJA signaling pathways”
Claim · model-written summary
The authors indicate that swpa2 is involved in defense related to the pathogenesis of P. chrysanthemi in sweetpotato.
- Taxon
- SweetpotatoIpomoea batatast0
- Interactor
- P. chrysanthemiDickeya chrysanthemie0pathogen
- Gene
- swpa2e0
- Outcome
- defense related to the pathogenesis of P. chrysanthemie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweetpotato”
e0“indicating that swpa2 is involved in defense related to the pathogenesis of P. chrysanthemi in sweetpotato plants”
Claim · model-written summary
The authors suggest that swpa2 is involved in overcoming oxidative stresses caused by both abiotic and biotic stress.
- Taxon
- SweetpotatoIpomoea batatast0
- Gene
- swpa2 genee0
- Outcome
- overcoming oxidative stressese0
- Qualifier
- both abiotic and biotic stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sweetpotato”
e0“swpa2 gene is involved in overcoming oxidative stresses caused by both abiotic and biotic stress”
The same questions in other papers
salicylic acid · molecular: expression · Ipomoea batatas (sweet potato)Positive and negative results
6 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 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.