Abstract
Nodulating and nonnodulating soybean [ Glyclne max (L.) Merr.] isolines were grown for 30 days in silica sand in the greenhouse with 0, 50, and 100 μg N/g sand to evaluate 14 C translocation in plants dependent solely on N fixation or nitrate uptake or both. No differences were observed between the two geno. type's translocation patterns at the vegetative stage, when they are totally dependent on soil nitrate up to 120 hours after 14 CO 2 exposure. Plant leaves, totally dependent on symbiotically fixed N, exported 14% more 14 C to the roots and nodules when compared to plants with total inhibition of nodulation. No more than 2% of the total recovered 14 C was found in the nodule component at any harvest time. Plants with partial inhibition of nodulation (grown with 50 μg N/g sand) exhibited relatively intermediate characteristics. The stem component contained significantly less 14 C than the other treatments and was accompanied by a decrease in stem dry weight.
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Claims 6
Claim · model-written summary
Nodulating and nonnodulating isolines showed no difference in vegetative translocation patterns.
- Taxon
- Soybeans
Glycine maxt0 - Organ / stage
- vegetative stagee0
- Outcome
- translocation patternse0
- Direction
- No differencese0
- Qualifier
- up to 120 hours after 14 CO 2 exposuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No differences were observed between the two geno. type's translocation patterns at the vegetative stage, when they are totally dependent on soil nitrate up to 120 hours after 14 CO 2 exposure.”
t0“Carbon‐14 Assimilate Translocation in Nodulated and Nonnodulated Soybeans1”
Claim · model-written summary
Leaves dependent on fixed nitrogen exported 14% more carbon 14 to roots and nodules than plants with inhibited nodulation.
- Taxon
- SoybeansGlycine maxt0
- Organ / stage
- Plant leavese0
- Outcome
- 14 C to the roots and nodulese0
- Direction
- moree0
- Value
- 14%e0
- Comparator
- plants with total inhibition of nodulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant leaves, totally dependent on symbiotically fixed N, exported 14% more 14 C to the roots and nodules when compared to plants with total inhibition of nodulation.”
t0“Carbon‐14 Assimilate Translocation in Nodulated and Nonnodulated Soybeans1”
Claim · model-written summary
Nodules contained no more than 2% of recovered carbon 14 at any harvest.
- Taxon
- SoybeansGlycine maxt0
- Organ / stage
- nodule componente0
- Outcome
- total recovered 14 Ce0
- Value
- 2%e0
- Qualifier
- at any harvest timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No more than 2% of the total recovered 14 C was found in the nodule component at any harvest time.”
t0“Carbon‐14 Assimilate Translocation in Nodulated and Nonnodulated Soybeans1”
Claim · model-written summary
Partially inhibited plants had intermediate characteristics.
- Taxon
- SoybeansGlycine maxt0
- Treatment
- 50 μg N/g sande0
- Outcome
- relatively intermediate characteristicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants with partial inhibition of nodulation (grown with 50 μg N/g sand) exhibited relatively intermediate characteristics.”
t0“Carbon‐14 Assimilate Translocation in Nodulated and Nonnodulated Soybeans1”
Claim · model-written summary
Partial nodulation inhibition reduced stem carbon 14 relative to other treatments.
- Taxon
- SoybeansGlycine maxt0
- Organ / stage
- stem componente0
- Treatment
- partial inhibition of nodulatione1
- Outcome
- 14 Ce0
- Direction
- lesse0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stem component contained significantly less 14 C than the other treatments and was accompanied by a decrease in stem dry weight.”
t0“Carbon‐14 Assimilate Translocation in Nodulated and Nonnodulated Soybeans1”
e1“Plants with partial inhibition of nodulation (grown with 50 μg N/g sand) exhibited relatively intermediate characteristics.”
Claim · model-written summary
Stem dry weight decreased alongside lower stem carbon 14.
- Taxon
- SoybeansGlycine maxt0
- Organ / stage
- steme0
- Outcome
- stem dry weighte0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stem component contained significantly less 14 C than the other treatments and was accompanied by a decrease in stem dry weight.”
t0“Carbon‐14 Assimilate Translocation in Nodulated and Nonnodulated Soybeans1”