Claim · model-written summary
Potato callus retained its viability after osmotic adaptation on 0.5 M mannitol
- Taxon
- Solanum tuberosum
Solanum tuberosume0 - Outcome
- viabilitye6
- Qualifier
- After osmotic adaptatione6
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”
Title
Influence of osmotic stress on the respiration of potato tuber callus
Linus H. W. van der Plas; Marijke J. Wagner Physiologia Plantarum 1984. doi:10.1111/j.1399-3054.1984.tb04592.x
Other claims from this paper (14)
- Intervention effect Potato callus fresh weight decreased upon transfer to mannitol medium
- Intervention effect Potato callus dry weight increased upon transfer to mannitol medium
- Intervention effect Osmolarity of the intracellular fluid of potato callus increased upon transfer to mannitol medium
- Mechanism Mannitol is probably taken up from the medium until tissue osmolarity equals that of the medium
- Intervention effect Respiration of potato callus increased upon transfer to medium with extra mannitol, especially per fresh weight
- Intervention effect On a fresh weight basis, cytochrome and alternative pathway capacities did not change appreciably with extra mannitol
- Intervention effect Participation of the alternative pathway in uninhibited respiration of potato callus rose from about 10% to 90% upon transfer
- Association Increase in respiration is partly correlated with decrease in fresh weight upon transfer
- Intervention effect Capacities of the cytochrome and alternative pathway declined per disc upon transfer
- Intervention effect Total respiration per disc of potato callus significantly increased upon transfer
- Mechanism Total respiration per disc increased due to increased participation of the alternative pathway
- Intervention effect ATP production per disc was almost unchanged before and after transfer
- Mechanism The alternative pathway may function as a reserve capacity in potato callus when cytochrome pathway ATP production is impaired
- Intervention effect Growth of potato callus became negligible on medium with 0.5 M mannitol after osmotic adaptation