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Hemolymph ice nucleating proteins from the New Zealand alpine weta Hemideina maori (Orthoptera: Stenopelmatidae)
journal contributionposted on 2023-05-18, 09:16 authored by Peter Wilson, Ramlov, H
We report measurements of the supercooling point of the hemolymph of the freeze-tolerant New Zealand alpine weta Hemideina maori Hutton (Orthoptera; Stenopelmatidae). Dilution curve and supercooling points following ultrafiltration argue that the ice-nucleation agents present are proteinaceous. We also report dynamic light-scattering measurements leading to hydrodynamic diameters of large molecules found in the weta hemolymph. The measured diameters agree well with theoretical estimates for sizes of ice-nucleating proteins corresponding to the measured supercooling points.
Publication titleComparative Biochemistry and Physiology. Part B: Biochemistry and Molecular Biology
Department/SchoolCollege Office - College of Health and Medicine
PublisherPergamon-Elsevier Science Ltd
Place of publicationThe Boulevard, Langford Lane, Kidlington, Oxford, England, Ox5 1Gb