Abstract
Jasmonic acid (JA) and its its methyl ester,methyl jasmonate (MeJA),are known to be important growth regulators which naturally occur in higher plants. They are also involved in increased plant resistance to different environmental stress,including abiotic stress such as mechanically damage,low temperature,drought,salinity etc.,and biotic stress such as pathogen and insect damage. Seedlings of rice variety Zhong-Er-Ou-6 were exposed to four treatments including well-watered,drought,drought plus MeJA,drought plus MeJA and inhibitor of jasmonic acid signal pathways (SHAM) to determine effects of MeJA application on chlorophyll content,chlorophyll fluorescence and photosynthetic traits of rice seedling leaves. The results showed that MeJA application significantly increased leaf water potential,chlorophyll content,chlorophyll fluorescence parameter Fv/F0 and Fv/Fm,transpiration rate,stomata conductance and CO2 concentration in cell interval under drought conditions,while it reduced ABA content in rice leaves. SHAM application under drought plus MeJA effectively inhibited these effects and led to decreases in leaf water potential,chlorophyll content,chlorophyll fluorescence parameter Fv/F0 and Fv/Fm and photosynthetic parameters,as well as increase in ABA content.
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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 7
Claim · model-written summary
MeJA application significantly increased leaf water potential and chlorophyll content of drought-stressed rice seedlings.
- Taxon
- rice
Oryza sativat0 - Treatment
- MeJA applicatione0
- Outcome
- leaf water potential,chlorophyll contente0
- Direction
- increasede0
- Comparator
- droughte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“MeJA application significantly increased leaf water potential,chlorophyll content”
e2“under drought conditions”
Claim · model-written summary
MeJA application significantly increased chlorophyll fluorescence parameters Fv/F0 and Fv/Fm of drought-stressed rice seedlings.
- Taxon
- riceOryza sativat0
- Treatment
- MeJA applicatione0
- Outcome
- chlorophyll fluorescence parameter Fv/F0 and Fv/Fme0
- Direction
- increasede0
- Comparator
- droughte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“MeJA application significantly increased leaf water potential,chlorophyll content,chlorophyll fluorescence parameter Fv/F0 and Fv/Fm”
e2“under drought conditions”
Claim · model-written summary
MeJA application significantly increased transpiration rate, stomatal conductance and intercellular CO2 concentration of drought-stressed rice seedlings.
- Taxon
- riceOryza sativat0
- Treatment
- MeJA applicatione0
- Outcome
- transpiration rate,stomata conductance and CO2 concentration in cell intervale1
- Direction
- increasede0
- Comparator
- droughte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“MeJA application significantly increased”
e1“transpiration rate,stomata conductance and CO2 concentration in cell interval”
e2“under drought conditions”
Claim · model-written summary
MeJA application reduced ABA content in leaves of drought-stressed rice seedlings.
- Taxon
- riceOryza sativat0
- Organ / stage
- leavese1
- Treatment
- MeJA applicatione0
- Outcome
- ABA contente1
- Direction
- reducede1
- Comparator
- droughte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“MeJA application significantly increased”
e1“under drought conditions,while it reduced ABA content in rice leaves”
Claim · model-written summary
SHAM application under drought plus MeJA inhibited the MeJA effects and decreased leaf water potential and chlorophyll content in rice seedlings.
- Taxon
- riceOryza sativat0
- Treatment
- SHAM application under drought plus MeJAe0
- Outcome
- leaf water potential,chlorophyll contente0
- Direction
- decreasese0
- Comparator
- drought plus MeJAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“SHAM application under drought plus MeJA effectively inhibited these effects and led to decreases in leaf water potential,chlorophyll content”
Claim · model-written summary
SHAM application under drought plus MeJA decreased chlorophyll fluorescence parameters Fv/F0 and Fv/Fm and photosynthetic parameters in rice seedlings.
- Taxon
- riceOryza sativat0
- Treatment
- SHAM application under drought plus MeJAe0
- Outcome
- chlorophyll fluorescence parameter Fv/F0 and Fv/Fm and photosynthetic parameterse1
- Direction
- decreasese0
- Comparator
- drought plus MeJAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“SHAM application under drought plus MeJA effectively inhibited these effects and led to decreases in”
e1“chlorophyll fluorescence parameter Fv/F0 and Fv/Fm and photosynthetic parameters”
Claim · model-written summary
SHAM application under drought plus MeJA increased ABA content in rice seedlings.
- Taxon
- riceOryza sativat0
- Treatment
- SHAM application under drought plus MeJAe0
- Outcome
- ABA contente1
- Direction
- increasee1
- Comparator
- drought plus MeJAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“SHAM application under drought plus MeJA”
e1“as well as increase in ABA content”
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See all 92 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.