Abstract
ABSTRACT Previous studies indicate that methylated cyclitols are potentially important osmolytes in plants. In a search for genetic diversity for pinitol ( D ‐3‐ O ‐methyl‐chiro‐inositol) accumulation in soybean ( Glycine max (L.) Merr.), two‐ to three‐fold differences in pinitol accumulation in leaf blades were found among Chinese plant introductions. Furthermore, it was found that genotypes that accumulated high concentrations of pinitol, when grown under well‐watered conditions, had been selected for performance in regions of China having low rainfall. Among the carbohydrates analysed, pinitol accumulation was uniquely associated with adaptation to dry areas of China. A detailed study of pinitol accumulation in the soybean plant showed two‐ to three‐fold gradients in pinitol concentration from the bottom to the top of the plant. The gradient shifted during plant development, with consistently higher concentrations of pinitol in the uppermost leaves. Pinitol accumulation was not correlated with activity of the key biosynthetic enzyme, inositol methyl transferase. This result and other lines of evidence indicated that shifting patterns of pinitol accumulation were due to translocation of the cyclitol from lower to upper nodes. Pinitol, proline, and sugars accumulated in leaf blades on soybean plants subjected to drought, but the molar concentration of pinitol in stressed plants was greater than the concentrations of proline or sugars. Although the mechanism by which pinitol participates in drought tolerance is not fully known, our results provide additional correlative evidence linking pinitol and drought tolerance in soybean.
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Claims 11
Claim · model-written summary
Pinitol accumulation in leaf blades differed two- to three-fold among Chinese plant introductions.
- Taxon
- soybean
Glycine maxt0 - Material
- Chinese plant introductionse1
- Outcome
- pinitol accumulation in leaf bladese1
- Value
- two‐ to three‐folde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e1“two‐ to three‐fold differences in pinitol accumulation in leaf blades were found among Chinese plant introductions”
Claim · model-written summary
Genotypes with high pinitol accumulation were selected for performance in dry regions of China.
- Taxon
- soybeanGlycine maxt0
- Material
- genotypes that accumulated high concentrations of pinitole2
- Outcome
- performancee3
- Setting
- regions of China having low rainfalle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e2“genotypes that accumulated high concentrations of pinitol”
e3“had been selected for performance in regions of China having low rainfall”
Claim · model-written summary
Pinitol accumulation was uniquely associated with adaptation to dry areas of China among the carbohydrates analysed.
- Taxon
- soybeanGlycine maxt0
- Outcome
- pinitol accumulatione4
- Setting
- dry areas of Chinae4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e4“Among the carbohydrates analysed, pinitol accumulation was uniquely associated with adaptation to dry areas of China”
Claim · model-written summary
Concentrations of pinitol were consistently higher in the uppermost leaves.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- uppermost leavese5
- Outcome
- concentrations of pinitole5
- Direction
- highere5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e5“with consistently higher concentrations of pinitol in the uppermost leaves”
Claim · model-written summary
Pinitol concentration showed two- to three-fold gradients from the bottom to the top of the plant.
- Taxon
- soybeanGlycine maxt0
- Outcome
- pinitol concentratione6
- Value
- two‐ to three‐folde6
- Qualifier
- from the bottom to the top of the plante6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e6“two‐ to three‐fold gradients in pinitol concentration from the bottom to the top of the plant”
Claim · model-written summary
The pinitol concentration gradient shifted during plant development.
- Taxon
- soybeanGlycine maxt0
- Outcome
- gradiente5
- Qualifier
- shifted during plant developmente5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e5“The gradient shifted during plant development, with consistently higher concentrations of pinitol in the uppermost leaves”
Claim · model-written summary
Pinitol accumulation was not correlated with activity of inositol methyl transferase.
- Taxon
- soybeanGlycine maxt0
- Gene
- inositol methyl transferasee7
- Outcome
- Pinitol accumulatione7
- Direction
- not correlatede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e7“Pinitol accumulation was not correlated with activity of the key biosynthetic enzyme, inositol methyl transferase”
Claim · model-written summary
Shifting patterns of pinitol accumulation are due to translocation of the cyclitol from lower to upper nodes.
- Taxon
- soybeanGlycine maxt0
- Outcome
- shifting patterns of pinitol accumulatione0
- Qualifier
- translocation of the cyclitol from lower to upper nodese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“shifting patterns of pinitol accumulation were due to translocation of the cyclitol from lower to upper nodes”
Claim · model-written summary
Pinitol, proline and sugars accumulated in leaf blades of drought-stressed soybean plants.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- leaf bladese0
- Treatment
- subjected to droughte0
- Outcome
- Pinitol, proline, and sugarse0
- Direction
- accumulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“Pinitol, proline, and sugars accumulated in leaf blades on soybean plants subjected to drought”
Claim · model-written summary
Molar pinitol concentration in stressed plants was greater than the concentrations of proline or sugars.
- Taxon
- soybeanGlycine maxt0
- Treatment
- stressed plantse0
- Outcome
- molar concentration of pinitole0
- Direction
- greatere0
- Comparator
- the concentrations of proline or sugarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“the molar concentration of pinitol in stressed plants was greater than the concentrations of proline or sugars”
Claim · model-written summary
Results give additional correlative evidence linking pinitol and drought tolerance in soybean.
- Taxon
- soybeanGlycine maxt0
- Compound
- pinitole0
- Outcome
- drought tolerancee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“our results provide additional correlative evidence linking pinitol and drought tolerance in soybean”
The same questions in other papers
drought · physiology: osmolytes · Glycine max (soybean)Results differ
9 papers in the same direction as this paper · 11 in the opposite direction
- negative
- negative
- negative
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See all 21 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.