Abstract
The effects of jasmonic acid (JA) and methyl jasmonate (Me-JA) on photosynthetic efficiency and expression of some photosystem (PSII) related in different cultivars of Brassica oleracea L. (var. italica, capitata, and botrytis) were investigated. Plants raised from seeds subjected to a pre-sowing soaking treatment of varying concentrations of JA and Me-JA showed enhanced photosynthetic efficiency in terms of qP and chlorophyll fluorescence. Maximum quantum efficiency of PSII (Fv/Fm) was increased over that in the control seedlings. This enhancement was more pronounced in the Me-JA-treated seedlings compared to that in JA-treated ones. The expression of PSII genes was differentially regulated among the three varieties of B. oleracea. The gene PsbI up-upregulated in var. botrytis after treatment of JA and Me-JA, whereas PsbL up-regulated in capitata and botrytis after supplementation of JA. The gene PsbM showed many fold enhancements in these expressions in italica and botrytis after treatment with JA. However, the expression of the gene PsbM increased by both JA and Me-JA treatments. PsbTc(p) and PsbTc(n) were also found to be differentially expressed which revealed specificity with the variety chosen as well as JA or Me-JA treatments. The RuBP carboxylase activity remained unaffected by either JA or Me-JA supplementation in all three varieties of B. oleracea L. The data suggest that exogenous application of JA and Me-JA to seeds before germination could influence the assembly, stability, and repair of PS II in the three varieties of B. oleracea examined. Furthermore, this improvement in the PS II machinery enhanced the photosynthetic efficiency of the system and improved the photosynthetic productivity in terms of saccharides accumulation.
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Claims 18
Claim · model-written summary
JA-treated seedlings had enhanced qP and chlorophyll fluorescence.
- Taxon
- Brassica oleracea L
Brassica oleraceat0 - Treatment
- JAe0
- Outcome
- qP and chlorophyll fluorescencee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants raised from seeds subjected to a pre-sowing soaking treatment of varying concentrations of JA and Me-JA showed enhanced photosynthetic efficiency in terms of qP and chlorophyll fluorescence”
t0“Brassica oleracea L”
Claim · model-written summary
Me-JA-treated seedlings had enhanced qP and chlorophyll fluorescence.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Treatment
- Me-JAe0
- Outcome
- qP and chlorophyll fluorescencee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants raised from seeds subjected to a pre-sowing soaking treatment of varying concentrations of JA and Me-JA showed enhanced photosynthetic efficiency in terms of qP and chlorophyll fluorescence”
t0“Brassica oleracea L”
Claim · model-written summary
PSII maximum quantum efficiency increased versus controls.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Outcome
- Maximum quantum efficiency of PSII (Fv/Fm)e0
- Direction
- increasede0
- Comparator
- control seedlingse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum quantum efficiency of PSII (Fv/Fm) was increased over that in the control seedlings”
t0“Brassica oleracea L”
Claim · model-written summary
Me-JA enhanced PSII efficiency more than JA.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Treatment
- Me-JA-treated seedlingse0
- Outcome
- Maximum quantum efficiency of PSII (Fv/Fm)e1
- Direction
- more pronouncede0
- Comparator
- JA-treated onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This enhancement was more pronounced in the Me-JA-treated seedlings compared to that in JA-treated ones”
e1“Maximum quantum efficiency of PSII (Fv/Fm) was increased over that in the control seedlings”
t0“Brassica oleracea L”
Claim · model-written summary
PSII gene expression differed among Brassica varieties.
- Taxon
- B. oleraceaBrassica oleraceae0
- Material
- three varietiese0
- Outcome
- expression of PSII genes was differentially regulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expression of PSII genes was differentially regulated among the three varieties of B. oleracea”
Claim · model-written summary
JA increased PsbI expression in botrytis.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Material
- var. botrytise0
- Treatment
- JAe0
- Gene
- PsbIe0
- Outcome
- PsbI up-upregulatede0
- Direction
- up-upregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The gene PsbI up-upregulated in var. botrytis after treatment of JA and Me-JA”
t0“Brassica oleracea L”
Claim · model-written summary
Me-JA increased PsbI expression in botrytis.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Material
- var. botrytise0
- Treatment
- Me-JAe0
- Gene
- PsbIe0
- Outcome
- PsbI up-upregulatede0
- Direction
- up-upregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The gene PsbI up-upregulated in var. botrytis after treatment of JA and Me-JA”
t0“Brassica oleracea L”
Claim · model-written summary
JA upregulated PsbL in capitata.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Material
- capitatae0
- Treatment
- JAe0
- Gene
- PsbLe0
- Outcome
- PsbL up-regulatede0
- Direction
- up-regulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PsbL up-regulated in capitata and botrytis after supplementation of JA”
t0“Brassica oleracea L”
Claim · model-written summary
JA upregulated PsbL in botrytis.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Material
- botrytise0
- Treatment
- JAe0
- Gene
- PsbLe0
- Outcome
- PsbL up-regulatede0
- Direction
- up-regulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PsbL up-regulated in capitata and botrytis after supplementation of JA”
t0“Brassica oleracea L”
Claim · model-written summary
JA enhanced PsbM expression in italica.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Material
- italicae0
- Treatment
- JAe0
- Gene
- PsbMe0
- Outcome
- PsbM showed many fold enhancementse0
- Direction
- enhancementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The gene PsbM showed many fold enhancements in these expressions in italica and botrytis after treatment with JA”
t0“Brassica oleracea L”
Claim · model-written summary
JA enhanced PsbM expression in botrytis.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Material
- botrytise0
- Treatment
- JAe0
- Gene
- PsbMe0
- Outcome
- PsbM showed many fold enhancementse0
- Direction
- enhancementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The gene PsbM showed many fold enhancements in these expressions in italica and botrytis after treatment with JA”
t0“Brassica oleracea L”
Claim · model-written summary
Me-JA increased PsbM expression.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Treatment
- Me-JAe0
- Gene
- PsbMe0
- Outcome
- expression of the gene PsbMe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression of the gene PsbM increased by both JA and Me-JA treatments”
t0“Brassica oleracea L”
Claim · model-written summary
PsbTc(p) and PsbTc(n) expression varied by variety and treatment.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Gene
- PsbTc(p) and PsbTc(n)e0
- Outcome
- differentially expressede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PsbTc(p) and PsbTc(n) were also found to be differentially expressed which revealed specificity with the variety chosen as well as JA or Me-JA treatments”
t0“Brassica oleracea L”
Claim · model-written summary
JA did not affect RuBP carboxylase activity across three varieties.
- Taxon
- B. oleracea L.Brassica oleraceae0
- Treatment
- JAe0
- Gene
- RuBP carboxylasee0
- Outcome
- RuBP carboxylase activitye0
- Direction
- remained unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The RuBP carboxylase activity remained unaffected by either JA or Me-JA supplementation in all three varieties of B. oleracea L.”
Claim · model-written summary
Me-JA did not affect RuBP carboxylase activity across three varieties.
- Taxon
- B. oleracea L.Brassica oleraceae0
- Treatment
- Me-JAe0
- Gene
- RuBP carboxylasee0
- Outcome
- RuBP carboxylase activitye0
- Direction
- remained unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The RuBP carboxylase activity remained unaffected by either JA or Me-JA supplementation in all three varieties of B. oleracea L.”
Claim · model-written summary
Authors suggest jasmonate application influences PSII assembly, stability and repair.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Treatment
- exogenous application of JA and Me-JA to seeds before germinatione0
- Outcome
- assembly, stability, and repair of PS IIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous application of JA and Me-JA to seeds before germination could influence the assembly, stability, and repair of PS II”
t0“Brassica oleracea L”
Claim · model-written summary
Improved PSII machinery enhanced photosynthetic efficiency.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Outcome
- photosynthetic efficiencye0
- Qualifier
- improvement in the PS II machinerye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this improvement in the PS II machinery enhanced the photosynthetic efficiency of the system”
t0“Brassica oleracea L”
Claim · model-written summary
Improved PSII machinery increased saccharide accumulation.
- Taxon
- Brassica oleracea LBrassica oleraceat0
- Outcome
- photosynthetic productivity in terms of saccharides accumulatione0
- Qualifier
- improvement in the PS II machinerye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved the photosynthetic productivity in terms of saccharides accumulation”
e1“this improvement in the PS II machinery enhanced the photosynthetic efficiency of the system”
t0“Brassica oleracea L”
The same questions in other papers
jasmonic acid · physiology: enzyme activity · Brassica oleracea (wild cabbage)Positive and negative results
1 in the opposite direction
- positive
(-)-methyl jasmonate · physiology: enzyme activity · Brassica oleracea (wild cabbage)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
(-)-methyl jasmonate · physiology: photosynthesis · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
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.