Abstract
Despite the wide uses of potted plants, information on how pot size affects plant photosynthetic matter production is still considerably limited. This study investigated with soybean plants how transplantation into larger pots affects various characteristics related to photosynthetic matter production. The transplantation was analyzed to increase leaf photosynthetic rate, transpiration rate, and stomatal conductance without affecting significantly leaf intercellular CO 2 concentration, implicating that the transplantation induced equal increases in the rate of CO 2 diffusion via leaf stomata and the rate of CO 2 fixation in leaf photosynthetic cells. Analyses of Rubisco activity and contents of a substrate (ribulose-1,5-bisphosphate (RuBP)) for Rubisco and total protein in leaf suggested that an increase in leaf Rubisco activity, which is likely to result from an increase in leaf Rubisco content, could contribute to the transplantation-induced increase in leaf photosynthetic rate. Analyses of leaf major photosynthetic carbohydrates and dry weights of source and sink organs revealed that transplantation increased plant sink capacity that uses leaf starch, inducing a decrease in leaf starch content and an increase in whole plant growth, particularly, growth of sink organs. Previously, in the same soybean species, it was demonstrated that negative correlation exists between leaf starch content and photosynthetic rate and that accumulation of starch in leaf decreases the rate of CO 2 diffusion within leaf. Thus, it was suggested that the transplantation-induced increase in plant sink capacity decreasing leaf starch content could cause the transplantation-induced increase in leaf photosynthetic rate by inducing an increase in the rate of CO 2 diffusion within leaf and thereby substantiating an increase in leaf Rubisco activity in vivo. It was therefore concluded that transplantation of soybean plants into larger pots attempted in this study increased the plant photosynthetic matter production by increasing mainly sink capacity that uses leaf starch for whole plant growth, particularly, growth of sink organs.
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Claims 9
Claim · model-written summary
Transplantation to larger pots increased soybean leaf photosynthetic rate, transpiration rate, and stomatal conductance.
- Taxon
- Soybean Plants
Glycine maxt0 - Treatment
- transplantatione0
- Outcome
- leaf photosynthetic rate, transpiration rate, and stomatal conductancee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The transplantation was analyzed to increase leaf photosynthetic rate, transpiration rate, and stomatal conductance without affecting significantly leaf intercellular CO 2 concentration”
t0“Soybean Plants”
Claim · model-written summary
Transplantation did not significantly change soybean leaf intercellular CO 2 concentration.
- Taxon
- Soybean PlantsGlycine maxt0
- Treatment
- transplantatione0
- Outcome
- leaf intercellular CO 2 concentratione0
- Direction
- without affectinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The transplantation was analyzed to increase leaf photosynthetic rate, transpiration rate, and stomatal conductance without affecting significantly leaf intercellular CO 2 concentration”
t0“Soybean Plants”
Claim · model-written summary
Leaf Rubisco activity increased with transplantation.
- Taxon
- Soybean PlantsGlycine maxt0
- Gene
- Rubiscoe0
- Outcome
- leaf Rubisco activitye0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in leaf Rubisco activity, which is likely to result from an increase in leaf Rubisco content, could contribute to the transplantation-induced increase in leaf photosynthetic rate.”
t0“Soybean Plants”
Claim · model-written summary
Higher Rubisco content was proposed to explain increased Rubisco activity and photosynthetic rate.
- Taxon
- Soybean PlantsGlycine maxt0
- Gene
- Rubiscoe0
- Outcome
- leaf photosynthetic ratee0
- Qualifier
- increase in leaf Rubisco contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase in leaf Rubisco activity, which is likely to result from an increase in leaf Rubisco content, could contribute to the transplantation-induced increase in leaf photosynthetic rate.”
t0“Soybean Plants”
Claim · model-written summary
Transplantation increased soybean sink capacity.
- Taxon
- Soybean PlantsGlycine maxt0
- Treatment
- transplantatione0
- Outcome
- plant sink capacitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplantation increased plant sink capacity that uses leaf starch, inducing a decrease in leaf starch content and an increase in whole plant growth, particularly, growth of sink organs.”
t0“Soybean Plants”
Claim · model-written summary
Transplantation decreased soybean leaf starch content.
- Taxon
- Soybean PlantsGlycine maxt0
- Treatment
- transplantatione0
- Outcome
- leaf starch contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplantation increased plant sink capacity that uses leaf starch, inducing a decrease in leaf starch content and an increase in whole plant growth, particularly, growth of sink organs.”
t0“Soybean Plants”
Claim · model-written summary
Transplantation increased whole soybean plant growth, particularly sink organs.
- Taxon
- Soybean PlantsGlycine maxt0
- Organ / stage
- sink organse0
- Treatment
- transplantatione0
- Outcome
- whole plant growthe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplantation increased plant sink capacity that uses leaf starch, inducing a decrease in leaf starch content and an increase in whole plant growth, particularly, growth of sink organs.”
t0“Soybean Plants”
Claim · model-written summary
The authors proposed that greater sink capacity and lower leaf starch increased CO 2 diffusion and photosynthetic rate.
- Taxon
- Soybean PlantsGlycine maxt0
- Outcome
- leaf photosynthetic ratee0
- Qualifier
- increase in the rate of CO 2 diffusion within leafe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transplantation-induced increase in plant sink capacity decreasing leaf starch content could cause the transplantation-induced increase in leaf photosynthetic rate by inducing an increase in the rate of CO 2 diffusion within leaf and thereby substantiating an increase in leaf Rubisco activity in vivo.”
t0“Soybean Plants”
Claim · model-written summary
Transplantation increased soybean photosynthetic matter production, mainly through increased sink capacity.
- Taxon
- soybean plantsGlycine maxe0
- Outcome
- plant photosynthetic matter productione0
- Qualifier
- increasing mainly sink capacitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplantation of soybean plants into larger pots attempted in this study increased the plant photosynthetic matter production by increasing mainly sink capacity that uses leaf starch for whole plant growth, particularly, growth of sink organs.”
The same questions in other papers
transplanting · growth · Glycine max (soybean)Positive and negative results
4 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
5 papers more in this group
See all 9 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.