Abstract
The deposition of calcium in tomato fruit grown at a range of salinities (electrical conductivities between 3 and 17 mS cm“1), with or without IAA-transport inhibitor treatment, was investigated. Calcium (Ca) in the flesh and pulp of tomato fruit was sequentially separated into four fractions: FI soluble in water, FII soluble in 2.5 mol dm“3 NaCl, Fill soluble in 2% acetic acid and FIV soluble in 5% HC1. In mature fruit, grown at 3 mS cm“1, more than half the Ca was in FI, and the Ca concentration was higher in the pulp than in the flesh. FII and Fill each contained less than 20% of the Ca, and the Ca concentration was higher in the flesh than in the pulp. In general, salinity reduced the concentration of Ca in all fractions and slightly altered the proportional distribution of Ca in fractions. The deposition of calcium in young fruit, grown at 3 and 8 mS cm“1, was highest in FII in the flesh or in FI in the pulp. When 45Ca was supplied to detached fruit, the patterns of45 Ca distribution in the fractions were similar to that of total Ca. Treatment with an IAA-transport inhibitor, CME, reduced both the uptake and transport of 45Ca. While the amount of 45Ca in all fractions was significantly reduced by CME, the proportional distribution of 45Ca among fractions was not affected substantially. Although the proportional deposition of Ca in different fractions was not significantly affected by either salinity or CME, further reduction of the intrinsically low deposition of Ca in FII of distal pulp caused by these factors may be the cause of blossom-end rot in tomato fruit.
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Claims 13
Claim · model-written summary
In mature tomato fruit grown at 3 mS cm-1, more than half of the calcium was in the water-soluble fraction FI.
- Taxon
- tomato
Solanum lycopersicumt0 - Organ / stage
- mature fruite0
- Outcome
- Ca was in FIe1
- Value
- more than halfe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e0“In mature fruit”
e1“more than half the Ca was in FI”
Claim · model-written summary
In mature tomato fruit, Ca concentration was higher in the pulp than in the flesh.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- mature fruite0
- Outcome
- Ca concentratione1
- Direction
- highere1
- Comparator
- fleshe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e0“In mature fruit”
e1“the Ca concentration was higher in the pulp than in the flesh”
Claim · model-written summary
Fractions FII and FIII each contained less than 20% of the Ca.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- contained less than 20% of the Cae1
- Value
- less than 20%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e1“each contained less than 20% of the Ca”
Claim · model-written summary
In fractions FII and FIII, Ca concentration was higher in the flesh than in the pulp.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- Ca concentratione1
- Direction
- highere1
- Comparator
- pulpe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e1“the Ca concentration was higher in the flesh than in the pulp”
Claim · model-written summary
Salinity reduced the concentration of Ca in all fractions of tomato fruit.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salinitye1
- Outcome
- concentration of Cae1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e1“salinity reduced the concentration of Ca in all fractions”
Claim · model-written summary
Salinity slightly altered the proportional distribution of Ca among fractions.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salinitye2
- Outcome
- proportional distribution of Cae1
- Qualifier
- slightly alterede1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e1“slightly altered the proportional distribution of Ca in fractions”
e2“In general, salinity”
Claim · model-written summary
In young fruit grown at 3 and 8 mS cm-1, Ca deposition was highest in FII in the flesh or in FI in the pulp.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- young fruite0
- Outcome
- deposition of calciume0
- Direction
- higheste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e0“The deposition of calcium in young fruit”
e1“was highest in FII in the flesh or in FI in the pulp”
Claim · model-written summary
When 45Ca was supplied to detached fruit, its distribution among the fractions was similar to that of total Ca.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- were similar to that of total Cae1
- Qualifier
- 45Ca was supplied to detached fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e0“When 45Ca was supplied to detached fruit”
e1“were similar to that of total Ca”
Claim · model-written summary
Treatment with the IAA-transport inhibitor CME reduced both uptake and transport of 45Ca.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- IAA-transport inhibitor, CMEe1
- Outcome
- uptake and transport of 45Cae1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e1“Treatment with an IAA-transport inhibitor, CME, reduced both the uptake and transport of 45Ca”
Claim · model-written summary
CME significantly reduced the amount of 45Ca in all fractions.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- CMEe1
- Outcome
- amount of 45Ca in all fractionse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e1“the amount of 45Ca in all fractions was significantly reduced by CME”
Claim · model-written summary
CME did not substantially affect the proportional distribution of 45Ca among fractions.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- CMEe2
- Outcome
- proportional distribution of 45Cae1
- Direction
- not affected substantiallye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e1“the proportional distribution of 45Ca among fractions was not affected substantially”
e2“While the amount of 45Ca in all fractions was significantly reduced by CME”
Claim · model-written summary
The proportional deposition of Ca in different fractions was not significantly affected by either salinity or CME.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salinity or CMEe1
- Outcome
- proportional deposition of Cae1
- Direction
- not significantly affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato fruit”
e1“the proportional deposition of Ca in different fractions was not significantly affected by either salinity or CME”
Claim · model-written summary
The authors suggest that further reduction of the already low Ca deposition in FII of distal pulp caused by salinity and CME may cause blossom-end rot in tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- blossom-end rote1
- Qualifier
- reduction of the intrinsically low deposition of Ca in FII of distal pulpe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“further reduction of the intrinsically low deposition of Ca in FII of distal pulp caused by these factors may be the cause of blossom-end rot in tomato”
The same questions in other papers
salinity · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results
57 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- positive
62 papers more in this group
See all 66 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.