Claim · model-written summary
Total respiration per disc increased due to increased participation of the alternative pathway
- Taxon
- Solanum tuberosum
Solanum tuberosume0 - Outcome
- total respiration per disce6
- Qualifier
- increased participation of the alternative pathwaye6
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”
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
- 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
- Observation Potato callus retained its viability after osmotic adaptation on 0.5 M mannitol