Abstract
Triacontanol (TRIA) is a saturated long-chain alcohol that is known to have a growth promoting activity when exogenously supplied to a number of plants. In this study, dry weight, protein and chlorophyll contents of rice seedlings were increased by foliar application of TRIA. Leaf net photosynthesis rate (Pn) was increased very quickly and persistently at a given photon flux density (PFD). The TRIA-regulated genes in rice were isolated from cDNA library by differential screening with probes generated from the forward- and reverse-suppression subtractive hybridization (SSH) populations and confirmed by Northern blot. Sequence analysis revealed that most of the up-regulated genes encoded the photosynthetic and photorespiratory proteins. Two down-regulated genes were identified as those encoding an ABA- and stress-related protein and a wounding-related protein. These results suggested that TRIA up-regulated the photosynthesis process and suppressed stresses in rice plants. Time-course profiles of expression of rbcS isogenes suggested the complex mechanisms involved in the regulation of photosynthesis promoted by TRIA.
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Claims 6
Claim · model-written summary
Foliar TRIA increased rice seedling dry weight, protein and chlorophyll contents.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- seedlingse0
- Treatment
- foliar application of TRIAe0
- Outcome
- dry weight, protein and chlorophyll contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry weight, protein and chlorophyll contents of rice seedlings were increased by foliar application of TRIA.”
Claim · model-written summary
TRIA rapidly and persistently increased rice leaf net photosynthesis at a given photon flux density.
- Taxon
- RiceOryza sativat0
- Treatment
- Triacontanolt0
- Outcome
- Leaf net photosynthesis rate (Pn)e0
- Direction
- increasede0
- Qualifier
- at a given photon flux density (PFD)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf net photosynthesis rate (Pn) was increased very quickly and persistently at a given photon flux density (PFD).”
t0“Triacontanol-Regulated Genes in Rice”
Claim · model-written summary
Most TRIA-upregulated rice genes encoded photosynthetic and photorespiratory proteins.
- Taxon
- RiceOryza sativat0
- Gene
- up-regulated genese0
- Outcome
- photosynthetic and photorespiratory proteinse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most of the up-regulated genes encoded the photosynthetic and photorespiratory proteins.”
t0“Rice”
Claim · model-written summary
Two TRIA-downregulated genes encoded an ABA- and stress-related protein and a wounding-related protein.
- Taxon
- RiceOryza sativat0
- Gene
- down-regulated genese0
- Outcome
- an ABA- and stress-related protein and a wounding-related proteine0
- Value
- Twoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two down-regulated genes were identified as those encoding an ABA- and stress-related protein and a wounding-related protein.”
t0“Rice”
Claim · model-written summary
The authors infer that TRIA upregulated photosynthesis and suppressed stress in rice.
- Taxon
- rice plantsOryza sativae0
- Treatment
- TRIAe0
- Outcome
- photosynthesis processe0
- Direction
- up-regulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggested that TRIA up-regulated the photosynthesis process and suppressed stresses in rice plants.”
Claim · model-written summary
rbcS expression time courses suggested complex regulation of TRIA-promoted photosynthesis.
- Taxon
- RiceOryza sativat0
- Treatment
- TRIAe0
- Gene
- rbcS isogenese0
- Outcome
- regulation of photosynthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Time-course profiles of expression of rbcS isogenes suggested the complex mechanisms involved in the regulation of photosynthesis promoted by TRIA.”
t0“Rice”
The same questions in other papers
application · physiology: pigments · Oryza sativa (rice)Positive and negative results
48 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
48 papers more in this group
See all 52 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.