Abstract
Transcripts of thionin genes encoding antimicrobial peptides were present at a high level in rice coleoptiles just after germination, and decreased to an undetectable level after about 3 d, but this decline was suppressed by co-treatment with gibberellic acid (GA(3)) and brassinolide (BL). The temporal expression patterns of key enzyme genes for the biosyntheses of gibberellins (GAs) and brassinosteroids (BRs) were correlated with the fluctuation of thionin mRNAs. Jasmonic acid (JA) replaced the effect of GA3 and BL, and its change in endogenous level was parallel to that of the thionin genes. These results strongly suggest that thionin gene expression was positively regulated by JA, whose endogenous level was synergistically regulated by GAs and BRs. In contrast, thionin gene expression in etiolated seedlings remained high while the endogenous level of JA was low, suggesting the presence of another signaling pathway in the dark to maintain the thionin level.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Thionin transcripts were high just after germination and fell to undetectable levels after about three days.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- coleoptilese0
- Gene
- thionine0
- Outcome
- Transcripts of thionin genese0
- Direction
- decreasede0
- Qualifier
- after about 3 de0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transcripts of thionin genes encoding antimicrobial peptides were present at a high level in rice coleoptiles just after germination, and decreased to an undetectable level after about 3 d”
t0“Rice Coleoptiles”
Claim · model-written summary
GA(3) and brassinolide co-treatment suppressed the decline in thionin transcripts.
- Taxon
- riceOryza sativat0
- Treatment
- co-treatment with gibberellic acid (GA(3)) and brassinolide (BL)e0
- Gene
- thionine1
- Outcome
- declinee0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this decline was suppressed by co-treatment with gibberellic acid (GA(3)) and brassinolide (BL)”
t0“Rice Coleoptiles”
e1“Transcripts of thionin genes encoding antimicrobial peptides”
Claim · model-written summary
Expression patterns of GA and BR biosynthesis enzyme genes tracked thionin mRNA fluctuations.
- Taxon
- riceOryza sativat0
- Gene
- thionine0
- Compound
- gibberellins (GAs) and brassinosteroids (BRs)e0
- Outcome
- fluctuation of thionin mRNAse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The temporal expression patterns of key enzyme genes for the biosyntheses of gibberellins (GAs) and brassinosteroids (BRs) were correlated with the fluctuation of thionin mRNAs”
t0“Rice Coleoptiles”
Claim · model-written summary
JA replaced the effect of GA3 and BL on thionin expression.
- Taxon
- riceOryza sativat0
- Treatment
- Jasmonic acid (JA)e0
- Gene
- thionine1
- Outcome
- thionine1
- Direction
- replacede0
- Comparator
- GA3 and BLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jasmonic acid (JA) replaced the effect of GA3 and BL”
t0“Rice Coleoptiles”
e1“Transcripts of thionin genes encoding antimicrobial peptides”
Claim · model-written summary
Endogenous JA changed in parallel with thionin gene levels.
- Taxon
- riceOryza sativat0
- Gene
- thionine0
- Compound
- JAe0
- Outcome
- thionin genese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jasmonic acid (JA) replaced the effect of GA3 and BL, and its change in endogenous level was parallel to that of the thionin genes”
t0“Rice Coleoptiles”
Claim · model-written summary
The authors infer that JA positively regulates thionin expression.
- Taxon
- riceOryza sativat0
- Gene
- thionine0
- Compound
- JAe0
- Outcome
- thionin gene expressione0
- Direction
- positively regulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thionin gene expression was positively regulated by JA”
t0“Rice Coleoptiles”
Claim · model-written summary
The authors infer synergistic regulation of endogenous JA by GAs and BRs.
- Taxon
- riceOryza sativat0
- Gene
- thionine1
- Compound
- GAs and BRse0
- Outcome
- endogenous levele0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“endogenous level was synergistically regulated by GAs and BRs”
t0“Rice Coleoptiles”
e1“Transcripts of thionin genes encoding antimicrobial peptides”
Claim · model-written summary
Etiolated seedlings maintained high thionin expression despite low endogenous JA.
- Taxon
- riceOryza sativat0
- Organ / stage
- etiolated seedlingse0
- Gene
- thionine0
- Compound
- JAe0
- Outcome
- thionin gene expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thionin gene expression in etiolated seedlings remained high while the endogenous level of JA was low”
t0“Rice Coleoptiles”
Claim · model-written summary
The authors propose another dark signaling pathway that maintains thionin levels.
- Taxon
- riceOryza sativat0
- Gene
- thionine0
- Outcome
- thionin levele0
- Qualifier
- another signaling pathway in the darke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggesting the presence of another signaling pathway in the dark to maintain the thionin level”
t0“Rice Coleoptiles”
The same questions in other papers
jasmonic acid · molecular: metabolites · Oryza sativa (rice)Positive and negative results
7 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
7 papers more in this group
See all 11 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.