Abstract
SUMMARY — Homestead tomato fruit were irradiated with 300 Krad of 60 Co gamma rays at three stages of maturity–mature‐green, 2 and 6 days from color break. Though oxygen consumption by mitochondrial preparations was greatly suppressed immediately after irradiation it increased to a maximum during the following 2 days and then declined similarily to nonirradiated fruit. Oxygen consumption was reduced considerably during ripening of the nonirradiated and irradiated 6 day breakers. Mitochondria from irradiated fruit exhibited lower P/O ratios than from nonirradiated fruit. A considerable reduction was less pronounced with the 2 and 6 day breakers. In vitro irradiation of mitochondrial preparations indicated no differences in activity with doses up to 100 Krad, but at 150 and 300 Krad, the activity decreased by 50 and 90%, respectively.
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Claims 8
Claim · model-written summary
Mitochondrial oxygen consumption was greatly suppressed immediately after tomato-fruit irradiation.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- Homesteade0
- Organ / stage
- fruite0
- Treatment
- 300 Krad of 60 Co gamma rayse0
- Outcome
- oxygen consumptione1
- Direction
- suppressede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Homestead tomato fruit were irradiated with 300 Krad of 60 Co gamma rays”
e1“oxygen consumption by mitochondrial preparations was greatly suppressed immediately after irradiation”
Claim · model-written summary
After irradiation, oxygen consumption rose to a maximum over two days then declined similarly to nonirradiated fruit.
- Taxon
- tomatoSolanum lycopersicume2
- Outcome
- oxygen consumptione1
- Direction
- increasede0
- Value
- 2 dayse0
- Comparator
- nonirradiated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it increased to a maximum during the following 2 days and then declined similarily to nonirradiated fruit”
e1“oxygen consumption by mitochondrial preparations”
e2“Homestead tomato fruit”
Claim · model-written summary
Oxygen consumption declined during ripening of nonirradiated and irradiated six-day breakers.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- 6 day breakerse0
- Outcome
- Oxygen consumptione0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxygen consumption was reduced considerably during ripening of the nonirradiated and irradiated 6 day breakers”
e1“Homestead tomato fruit”
Claim · model-written summary
Mitochondria from irradiated tomato fruit had lower P/O ratios than nonirradiated fruit.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- fruite0
- Treatment
- irradiatede0
- Outcome
- P/O ratiose0
- Direction
- lowere0
- Comparator
- nonirradiated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mitochondria from irradiated fruit exhibited lower P/O ratios than from nonirradiated fruit”
e1“Homestead tomato fruit”
Claim · model-written summary
The reported reduction was less pronounced in two- and six-day breakers.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- 2 and 6 day breakerse0
- Outcome
- reductione0
- Direction
- less pronouncede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A considerable reduction was less pronounced with the 2 and 6 day breakers”
e1“Homestead tomato fruit”
Claim · model-written summary
In vitro irradiation through 100 Krad produced no mitochondrial activity difference.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- doses up to 100 Krade0
- Outcome
- activitye0
- Direction
- no differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In vitro irradiation of mitochondrial preparations indicated no differences in activity with doses up to 100 Krad”
e1“Homestead tomato fruit”
Claim · model-written summary
In vitro irradiation at 150 Krad reduced mitochondrial activity by 50%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 150 and 300 Krad, the activity decreased by 50 and 90%, respectively”
e1“Homestead tomato fruit”
Claim · model-written summary
In vitro irradiation at 300 Krad reduced mitochondrial activity by 90%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 150 and 300 Krad, the activity decreased by 50 and 90%, respectively”
e1“Homestead tomato fruit”
The same questions in other papers
cobalt atom · pest · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- negative
radiation · pest · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.