Abstract
The leakage of solutes from cotyledons of soybeans (cv. Chippewa 64) was markedly stimulated by a chilling treatment (1 to 4 C) during the 1st minute of imbibition, but chilling after even 1 minute of water uptake resulted in little or no leakage increase. The respiratory rate of soybean particles was reduced more than 60% if a chilling treatment (15 minutes at 1 to 4 C) was given during the first minutes of imbibition, and little or no reduction was obtained if the chilling treatment was begun at 5 to 15 minutes after the start of imbibition. Using KCN as an inhibitor of cytochrome oxidase pathway of respiration and salicylhydroxamic acid as an inhibitor of the alternative pathway, it was found that the chilling injury involved a major reduction in the cytochrome pathway in whole axes and cotyledons and an engagement of the alternative pathway of respiration in cotyledon tissue. The suggestion is made that the chilling injury involves lesions resulting from temperature stress during the reorganization of membranes with water entry, and that both the leakage and the respiratory effects are consequences of these membrane lesions.
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Claims 7
Claim · model-written summary
Chilling during the first minute of imbibition markedly stimulated cotyledon solute leakage.
- Taxon
- soybeans
Glycine maxe0 - Material
- Chippewa 64e0
- Organ / stage
- cotyledonse0
- Treatment
- chilling treatment (1 to 4 C) during the 1st minute of imbibitione0
- Outcome
- leakage of solutese0
- Direction
- markedly stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leakage of solutes from cotyledons of soybeans (cv. Chippewa 64) was markedly stimulated by a chilling treatment (1 to 4 C) during the 1st minute of imbibition”
Claim · model-written summary
Chilling after a minute of uptake produced little or no leakage increase.
- Taxon
- SoybeansGlycine maxt0
- Treatment
- chilling after even 1 minute of water uptakee0
- Outcome
- leakagee0
- Direction
- little or no leakage increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chilling after even 1 minute of water uptake resulted in little or no leakage increase.”
t0“Soybeans”
Claim · model-written summary
Early chilling reduced respiration of soybean particles by more than 60%.
- Taxon
- soybeanGlycine maxe0
- Treatment
- chilling treatment (15 minutes at 1 to 4 C)e0
- Outcome
- respiratory rate of soybean particlese0
- Direction
- reducede0
- Value
- more than 60%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The respiratory rate of soybean particles was reduced more than 60% if a chilling treatment (15 minutes at 1 to 4 C) was given during the first minutes of imbibition”
Claim · model-written summary
Chilling begun 5 to 15 minutes after imbibition caused little or no respiratory reduction.
- Taxon
- SoybeansGlycine maxt0
- Treatment
- chilling treatment was begun at 5 to 15 minutes after the start of imbibitione0
- Outcome
- respiratory ratee1
- Direction
- little or no reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“little or no reduction was obtained if the chilling treatment was begun at 5 to 15 minutes after the start of imbibition.”
e1“The respiratory rate of soybean particles”
t0“Soybeans”
Claim · model-written summary
Chilling injury reduced the cytochrome pathway in axes and cotyledons.
- Taxon
- SoybeansGlycine maxt0
- Organ / stage
- whole axes and cotyledonse0
- Outcome
- cytochrome pathwaye0
- Direction
- major reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the chilling injury involved a major reduction in the cytochrome pathway in whole axes and cotyledons”
t0“Soybeans”
Claim · model-written summary
Chilling injury engaged the alternative respiratory pathway in cotyledons.
- Taxon
- SoybeansGlycine maxt0
- Organ / stage
- cotyledon tissuee0
- Outcome
- engagement of the alternative pathway of respiratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an engagement of the alternative pathway of respiration in cotyledon tissue”
t0“Soybeans”
Claim · model-written summary
The authors suggest membrane lesions during water entry cause leakage and respiratory effects.
- Taxon
- SoybeansGlycine maxt0
- Outcome
- leakage and the respiratory effectse0
- Qualifier
- membrane lesionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the chilling injury involves lesions resulting from temperature stress during the reorganization of membranes with water entry, and that both the leakage and the respiratory effects are consequences of these membrane lesions.”
t0“Soybeans”
The same questions in other papers
cold · physiology: respiration · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
1 paper more in this group
See all 5 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.