Phospholipid composition of hibernating ground squirrel (Citellus lateralis) kidney and low-temperature membrane function

Aloia, Roland C.

doi:10.1016/0305-0491(78)90021-4

Cited by 2 publications

(1 citation statement)

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“…1974 fits well in the above picture. To enlarge the membrane surface by increasing the proportion of phosphatidylcholine in the newly formed structures can be of practical-advantage for the cells, A further fact supporting that phosphatidylcholine plays a role in cold adaptation processes is that its accumulation was observed also in some other organisms exposed to cold, such as fungi (Hunter andRose 1972, Sawicki andPisano 1976) and hibernating mammals (Aloia 1978), Further experiments are devoted to investigate whether the accumulation of phospholipids takes place during the course of the whole hardening process or is triggered at a specific temperature. Another challenging question is the regulation of membrane augmentation.…”

Section: Discussionmentioning

confidence: 99%

Hardiness dependent accumulation of phospholipids in leaves of wheat cultivars

Horváth

Vı́gh

Belea

et al. 1980

Physiologia Plantarum

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Phospholipid content and composition in the leaves of thirteen cultivars of wheat differing in frost hardiness, were compared before and after hardening in order to see whether phospholipids play a role in surviving at low temperatures. The content of phospholipids in the leaves at the end of the hardening could be related to the aquired hardiness, and the relationship between the two phenomena could be described by the regression equation y = (0,174 1 0,0016) x -I-1311, Accumulation of phospholipids represents a hardiness dependent augmentation of membranes, Phosphatidylcholine appeared to be preferentially accumulated in hardy cultivars during the hardening process. As there are no significant differences in phospholipid fatty acid compositions investigated earlier, these results suggest the importance of the polar head group composition of membranes in avoiding frost injury.

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Section: Discussionmentioning

confidence: 99%