Response of potato tubers to hypoxia followed by re-aeration

Pfister-Sieber, Miriam; Brändle, Roland (1995). Response of potato tubers to hypoxia followed by re-aeration. Potato research, 38(3), pp. 231-239. European Association for Potato Research 10.1007/BF02359905

Preview

Text 1995_PotatoRes_38_231.pdf - Published Version Available under License Publisher holds Copyright. Download (450kB) | Preview

Potato tubers kept under hypoxia (1%) showed improved viability in comparison to anoxia, which was associated with the maintenance of intermediate adenylate energy charge values (A.E.C. = 0.6) and stable adenylate pools at 50% of the initial levels. Re-admission of oxygen to the tuber resulted in an almost full recovery of adenylate energy charge and total adenylates after up to 3 days of hypoxic pretreatment. Tubers exhibited a mixed fermentation. The high lactate. ethanol and acetaldehyde levels proved to be non toxic. Ethanol was degraded to acetaldehyde during re-aeration. Posthypoxic lipid peroxidation was indicated by malondialdehyde and ethane formation. Both products occurred with a temporary delay and in lower amounts compared to post-anoxia. Ethylene release was also considerably smaller. Severe hypoxia and posthypoxia postponed tissue death compared to anoxia. Survival was correlated with an improved energy supply which stabilized membranes.

Interest & Impact

Downloads

37 since deposited on 05 Jul 2017
19 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item