Abstract
Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol. The osmolarity of the intracellular fluid increases simultaneously. Probably mannitol is taken up from the medium till the osmolarity of the tissue is in equilibrium with that of the medium. After osmotic adaptation, on a medium with 0.5 M mannitol, growth is negligible, although the tissue retains its viability. Respiration increases upon transfer to medium with extra mannitol, especially when expressed on a fresh weight basis. On this basis cytochrome and alternative pathway capacities do not change appreciably. The respiratory increase is exclusively caused by an increased engagement of the alternative pathway. The participation of this pathway in uninhibited respiration increases from about 10 to 90% upon transfer to medium with extra mannitol. The increase in respiration is partly correlated with the decrease in fresh weight upon transfer. Per disc, the capacities of the cytochrome and alternative pathway decline. Yet, total respiration per disc significantly increases due to the increased participation of the alternative pathway. This results in an almost equal ATP‐production per disc before and after transfer. We suggest, that the alternative pathway functions as a reserve capacity in potato callus, which is switched on when ATP‐production coupled to the cytochrome pathway is impaired.
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Claims 15
Claim · model-written summary
Potato callus fresh weight decreased upon transfer to mannitol medium
- Taxon
- Solanum tuberosum
Solanum tuberosume0 - Material
- cv. Bintjee0
- Organ / stage
- calluse0
- Treatment
- nutrient medium supplemented with 0.3 or 0.5 M mannitole0
- Outcome
- fresh weighte0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
Claim · model-written summary
Potato callus dry weight increased upon transfer to mannitol medium
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Material
- cv. Bintjee0
- Organ / stage
- calluse0
- Treatment
- nutrient medium supplemented with 0.3 or 0.5 M mannitole0
- Outcome
- dry weighte0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
Claim · model-written summary
Osmolarity of the intracellular fluid of potato callus increased upon transfer to mannitol medium
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- nutrient medium supplemented with 0.3 or 0.5 M mannitole0
- Outcome
- osmolarity of the intracellular fluide1
- Direction
- increasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e1“The osmolarity of the intracellular fluid increases simultaneously”
Claim · model-written summary
Mannitol is probably taken up from the medium until tissue osmolarity equals that of the medium
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Compound
- mannitole2
- Outcome
- osmolarity of the tissuee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e2“Probably mannitol is taken up from the medium till the osmolarity of the tissue is in equilibrium with that of the medium”
Claim · model-written summary
Respiration of potato callus increased upon transfer to medium with extra mannitol, especially per fresh weight
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- transfer to medium with extra mannitole3
- Outcome
- Respiratione3
- Direction
- increasese3
- Qualifier
- especially when expressed on a fresh weight basise3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e3“Respiration increases upon transfer to medium with extra mannitol, especially when expressed on a fresh weight basis”
Claim · model-written summary
On a fresh weight basis, cytochrome and alternative pathway capacities did not change appreciably with extra mannitol
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- transfer to medium with extra mannitole3
- Outcome
- cytochrome and alternative pathway capacitiese4
- Direction
- no_changeinferrede4
- Qualifier
- fresh weight basise3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e3“Respiration increases upon transfer to medium with extra mannitol, especially when expressed on a fresh weight basis”
e4“On this basis cytochrome and alternative pathway capacities do not change appreciably”
Claim · model-written summary
Participation of the alternative pathway in uninhibited respiration of potato callus rose from about 10% to 90% upon transfer
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- transfer to medium with extra mannitole5
- Outcome
- participation of this pathway in uninhibited respiratione5
- Direction
- increasese5
- Value
- from about 10 to 90%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e5“The participation of this pathway in uninhibited respiration increases from about 10 to 90% upon transfer to medium with extra mannitol”
Claim · model-written summary
Increase in respiration is partly correlated with decrease in fresh weight upon transfer
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- transfere6
- Outcome
- increase in respiratione6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e6“The increase in respiration is partly correlated with the decrease in fresh weight upon transfer”
Claim · model-written summary
Capacities of the cytochrome and alternative pathway declined per disc upon transfer
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- transfer to medium with extra mannitole5
- Outcome
- the capacities of the cytochrome and alternative pathwaye7
- Direction
- declinee7
- Qualifier
- Per disce7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e5“The participation of this pathway in uninhibited respiration increases from about 10 to 90% upon transfer to medium with extra mannitol”
e7“Per disc, the capacities of the cytochrome and alternative pathway decline”
Claim · model-written summary
Total respiration per disc of potato callus significantly increased upon transfer
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- transfer to medium with extra mannitole5
- Outcome
- total respiration per disce6
- Direction
- increasese6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e5“The participation of this pathway in uninhibited respiration increases from about 10 to 90% upon transfer to medium with extra mannitol”
e6“Yet, total respiration per disc significantly increases due to the increased participation of the alternative pathway”
Claim · model-written summary
Total respiration per disc increased due to increased participation of the alternative pathway
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Outcome
- total respiration per disce6
- Qualifier
- increased participation of the alternative pathwaye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e6“Yet, total respiration per disc significantly increases due to the increased participation of the alternative pathway”
Claim · model-written summary
ATP production per disc was almost unchanged before and after transfer
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- transfere6
- Outcome
- ATP‐production per disce6
- Direction
- no_changeinferrede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e6“This results in an almost equal ATP‐production per disc before and after transfer”
Claim · model-written summary
The alternative pathway may function as a reserve capacity in potato callus when cytochrome pathway ATP production is impaired
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Organ / stage
- calluse6
- Outcome
- reserve capacitye6
- Qualifier
- the cytochrome pathway is impairede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e6“the alternative pathway functions as a reserve capacity in potato callus”
e7“the cytochrome pathway is impaired”
Claim · model-written summary
Growth of potato callus became negligible on medium with 0.5 M mannitol after osmotic adaptation
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Treatment
- 0.5 M mannitole6
- Outcome
- growthe6
- Direction
- decreaseinferrede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e6“After osmotic adaptation, on a medium with 0.5 M mannitol, growth is negligible, although the tissue retains its viability”
Claim · model-written summary
Potato callus retained its viability after osmotic adaptation on 0.5 M mannitol
- Taxon
- Solanum tuberosumSolanum tuberosume0
- Outcome
- viabilitye6
- Qualifier
- After osmotic adaptatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
e6“After osmotic adaptation, on a medium with 0.5 M mannitol, growth is negligible, although the tissue retains its viability”
The same questions in other papers
mannitol · growth · Solanum tuberosum (potato)Results agree
3 papers in the same direction as this paper
- negative
- no effect
- negative
in vitro · molecular: metabolites · Solanum tuberosum (potato)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →in vitro · growth · Solanum tuberosum (potato)Positive and negative results
12 papers in the same direction as this paper · 69 in the opposite direction
- positive
- positive
- positive
78 papers more in this group
See all 82 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.