Paper · 1984 · Journal of Experimental Botany

Changes in the Alkaloid Content of Developing Fruits of Tomato (Lycopersicon esculentumMill.)

ELSADIG A. ELTAYEB; JAMES G. RODDICK

11
claims
19
verbatim quotes
12
citations
1
research areas
—
Not open access

Abstract

Fruit ripening in normal red-, orange- and yellow-fruited cultivars of tomato was accelerated by treatment with Ethrel and such fruits had lower tomatine levels than untreated controls. Fruits in which ripening was retarded by incubating under reduced pressure had higher alkaloid levels than controls. In each case, fruit ripeness (as measured by pigmentation) showed a strong negative correlation with fruit tomatine. Ethrel treatment of fruits of the non-ripening mutants nor and rin caused only a small development of carotenoid pigment but markedly enhanced tomatine disappearance. Pigmentation and tomatine were again negatively correlated although the quantitative relationship differed. Under normal circumstances, tomatine disappearance from tomato fruits-is apparently governed by the physiological (cf. chronological) age of the fruit rather than by its growth or ripening characteristics alone.

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Claims 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel accelerated ripening in tomato fruit.

Material
normal red-, orange- and yellow-fruited cultivarse0
Organ / stage
Fruite0
Treatment
Ethrele0
Outcome
Fruit ripeninge0
Direction
acceleratede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fruit ripening in normal red-, orange- and yellow-fruited cultivars of tomato was accelerated by treatment with Ethrel”

✓ located verbatim in the source · abstract, characters 0–118 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Ethrel-treated tomato fruit had lower tomatine than untreated controls.

Treatment
Ethrele0
Outcome
tomatine levelse0
Direction
lowere0
Comparator
untreated controlse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fruit ripening in normal red-, orange- and yellow-fruited cultivars of tomato was accelerated by treatment with Ethrel and such fruits had lower tomatine levels than untreated controls”

✓ located verbatim in the source · abstract, characters 0–184 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Reduced pressure retarded tomato fruit ripening.

Treatment
incubating under reduced pressuree0
Outcome
ripeninge0
Direction
retardede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fruits in which ripening was retarded by incubating under reduced pressure”

✓ located verbatim in the source · abstract, characters 186–260 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 56–62 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Reduced-pressure fruit had higher alkaloid levels than controls.

Treatment
incubating under reduced pressuree0
Outcome
alkaloid levelse0
Direction
highere0
Comparator
controlse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Fruits in which ripening was retarded by incubating under reduced pressure had higher alkaloid levels than controls”

✓ located verbatim in the source · abstract, characters 186–301 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 56–62 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Fruit ripeness and tomatine were negatively correlated.

Organ / stage
fruite0
Outcome
fruit tomatinee0
Direction
negative correlatione0
Comparator
fruit ripenesse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“fruit ripeness (as measured by pigmentation) showed a strong negative correlation with fruit tomatine”

✓ located verbatim in the source · abstract, characters 317–418 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 56–62 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Ethrel caused a small increase in carotenoid pigment in nor mutant fruit.

Material
nore0
Treatment
Ethrel treatmente0
Outcome
carotenoid pigmente0
Direction
developmente0
Qualifier
only a smalle0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Ethrel treatment of fruits of the non-ripening mutants nor and rin caused only a small development of carotenoid pigment”

✓ located verbatim in the source · abstract, characters 420–540 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 56–62 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Ethrel caused a small increase in carotenoid pigment in rin mutant fruit.

Material
rine0
Treatment
Ethrel treatmente0
Outcome
carotenoid pigmente0
Direction
developmente0
Qualifier
only a smalle0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Ethrel treatment of fruits of the non-ripening mutants nor and rin caused only a small development of carotenoid pigment”

✓ located verbatim in the source · abstract, characters 420–540 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 56–62 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Ethrel enhanced tomatine disappearance in nor mutant fruit.

Material
nore0
Treatment
Ethrel treatmente0
Outcome
tomatine disappearancee0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Ethrel treatment of fruits of the non-ripening mutants nor and rin caused only a small development of carotenoid pigment but markedly enhanced tomatine disappearance”

✓ located verbatim in the source · abstract, characters 420–585 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 56–62 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Ethrel enhanced tomatine disappearance in rin mutant fruit.

Material
rine0
Treatment
Ethrel treatmente0
Outcome
tomatine disappearancee0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Ethrel treatment of fruits of the non-ripening mutants nor and rin caused only a small development of carotenoid pigment but markedly enhanced tomatine disappearance”

✓ located verbatim in the source · abstract, characters 420–585 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 56–62 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Pigmentation and tomatine were negatively correlated in mutant fruit, with a different quantitative relationship.

Outcome
tomatinee0
Direction
negatively correlatede0
Qualifier
quantitative relationship differede0
Comparator
Pigmentatione0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Pigmentation and tomatine were again negatively correlated although the quantitative relationship differed”

✓ located verbatim in the source · abstract, characters 587–693 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 56–62 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors infer that physiological fruit age governs tomatine disappearance.

Organ / stage
fruite0
Outcome
tomatine disappearancee0
Qualifier
physiological (cf. chronological) age of the fruite0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“tomatine disappearance from tomato fruits-is apparently governed by the physiological (cf. chronological) age of the fruit rather than by its growth or ripening characteristics alone”

✓ located verbatim in the source · abstract, characters 723–905 · show in text ↑

(2-chloroethyl)phosphonic acid · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results

24 papers: 21 positive, 3 negative or no effect

20 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

20 papers more in this group

See all 24 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.