Abstract
Abstract Nonmycorrhizal or mycorrhizal ( Glomus fasciculatum , G. etunicatum , or Gigaspora heterogama ) sour orange ( Citrus aurantium L.) seedlings were fertilized with 3 phosphorus levels applied in the irrigation water. At 0 mg P/L fertility, dry weight and cytokinin production of mycorrhizal plants were more than twice those of the nonmycorrhizal plants. Concentrations of P in leaves of mycorrhizal plants also were greater than the concentrations of P in the nonmycorrhizal plants. At 50 mg P/L fertility, concentrations of P in leaves were similar whether or not plants were mycorrhizal. Dry weight and cytokinin production of the mycorrhizal plants, however, were still twice those of the nonmycorrhizal plants. At 100 mg P/L fertility, dry weight and cytokinin production did not differ between nonmycorrhizal plants and plants infected with 2 of 3 mycorrhizal fungi. In G. heterogama- infected plants, cytokinin production was greater than that of nonmycorrhizal plants despite similar dry weights and P concentrations in the leaves. Enhancement of cytokinin production seemed to be associated with mycorrhizal infection rather than with increased P uptake.
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Claims 9
Claim · model-written summary
At zero phosphorus, mycorrhizal seedlings had more than twice the dry weight of nonmycorrhizal plants.
- Taxon
- sour orange
Citrus ×aurantiumt0 - Treatment
- mycorrhizale0
- Outcome
- dry weighte0
- Direction
- more than twicee0
- Value
- more than twicee0
- Qualifier
- 0 mg P/L fertilitye0
- Comparator
- nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 0 mg P/L fertility, dry weight and cytokinin production of mycorrhizal plants were more than twice those of the nonmycorrhizal plants”
t0“sour orange”
Claim · model-written summary
At zero phosphorus, mycorrhizal plants had more than twice the cytokinin production.
- Taxon
- sour orangeCitrus ×aurantiumt0
- Treatment
- mycorrhizale0
- Outcome
- cytokinin productione0
- Direction
- more than twicee0
- Value
- more than twicee0
- Qualifier
- 0 mg P/L fertilitye0
- Comparator
- nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 0 mg P/L fertility, dry weight and cytokinin production of mycorrhizal plants were more than twice those of the nonmycorrhizal plants”
t0“sour orange”
Claim · model-written summary
Mycorrhizal plants had greater leaf phosphorus concentrations.
- Taxon
- sour orangeCitrus ×aurantiumt0
- Treatment
- mycorrhizale0
- Outcome
- Concentrations of P in leavese0
- Direction
- greatere0
- Comparator
- nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of P in leaves of mycorrhizal plants also were greater than the concentrations of P in the nonmycorrhizal plants”
t0“sour orange”
Claim · model-written summary
At 50 mg P/L, leaf phosphorus concentrations were similar regardless of mycorrhizal status.
- Taxon
- sour orangeCitrus ×aurantiumt0
- Treatment
- mycorrhizale0
- Outcome
- concentrations of P in leavese0
- Direction
- similare0
- Qualifier
- 50 mg P/L fertilitye0
- Comparator
- not plants were mycorrhizale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 50 mg P/L fertility, concentrations of P in leaves were similar whether or not plants were mycorrhizal”
t0“sour orange”
Claim · model-written summary
At 50 mg P/L, mycorrhizal plants had twice the dry weight.
- Taxon
- sour orangeCitrus ×aurantiumt0
- Treatment
- mycorrhizale0
- Outcome
- Dry weighte0
- Direction
- twicee0
- Value
- twicee0
- Comparator
- nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry weight and cytokinin production of the mycorrhizal plants, however, were still twice those of the nonmycorrhizal plants”
t0“sour orange”
Claim · model-written summary
At 50 mg P/L, mycorrhizal plants had twice the cytokinin production.
- Taxon
- sour orangeCitrus ×aurantiumt0
- Treatment
- mycorrhizale0
- Outcome
- cytokinin productione0
- Direction
- twicee0
- Value
- twicee0
- Comparator
- nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry weight and cytokinin production of the mycorrhizal plants, however, were still twice those of the nonmycorrhizal plants”
t0“sour orange”
Claim · model-written summary
At 100 mg P/L, two mycorrhizal fungi did not change dry weight or cytokinin production.
- Taxon
- sour orangeCitrus ×aurantiumt0
- Treatment
- plants infected with 2 of 3 mycorrhizal fungie0
- Outcome
- dry weight and cytokinin productione0
- Direction
- did not differe0
- Qualifier
- 100 mg P/L fertilitye0
- Comparator
- nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 100 mg P/L fertility, dry weight and cytokinin production did not differ between nonmycorrhizal plants and plants infected with 2 of 3 mycorrhizal fungi”
t0“sour orange”
Claim · model-written summary
G. heterogama infection increased cytokinin production despite similar dry weight and leaf phosphorus.
- Taxon
- sour orangeCitrus ×aurantiumt0
- Treatment
- G. heterogama- infectede0
- Interactor
- G. heterogamaDentiscutata heterogamae0other
- Outcome
- cytokinin productione0
- Direction
- greatere0
- Qualifier
- despite similar dry weights and P concentrations in the leavese0
- Comparator
- nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In G. heterogama- infected plants, cytokinin production was greater than that of nonmycorrhizal plants despite similar dry weights and P concentrations in the leaves”
t0“sour orange”
Claim · model-written summary
The authors associated enhanced cytokinin production with mycorrhizal infection rather than phosphorus uptake.
- Taxon
- sour orangeCitrus ×aurantiumt0
- Treatment
- mycorrhizal infectione0
- Outcome
- cytokinin productione0
- Direction
- Enhancemente0
- Comparator
- increased P uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Enhancement of cytokinin production seemed to be associated with mycorrhizal infection rather than with increased P uptake”
t0“sour orange”
The same questions in other papers
mycorrhiza · growth · Citrus x aurantium (sour orange)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
2 papers more in this group
See all 6 papers →mycorrhiza · physiology: hormones · Citrus x aurantium (sour orange)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.