Isolation and Characterisation of Genes Encoding Ice Recrystallisation Inhibition Proteins (IRIPs) in the Cryophilic Antarctic Hair-Grass (Deschampsia Antarctica) and the Temperate Perennial Ryegrass (Lolium Perenne)

Presenter Information

U. P. John, La Trobe University, AustraliaFollow
R. M. Polotnianka, Australian Centre for Plant Functional Genomics, Australia
K. A. Sivakumaran, La Trobe University, Australia
L. Mackin, La Trobe University, Australia
M. J. Kuiper, Victorian Partnership for Advanced Computing, Australia
J. P. Talbot, La Trobe University, Australia
O. Chew, La Trobe University, Australia
G. D. Nugent, La Trobe University, Australia
N. O. I. Cogan, La Trobe University, AustraliaFollow
M. C. Drayton, La Trobe University, AustraliaFollow
J. W. Forster, La Trobe University, Australia
G. E. Schrauf, Universidad de Buenos Aires, Argentina
G. C. Spangenberg, La Trobe University, AustraliaFollow

Description

Antarctic hairgrass (D. antarctica Desv.), the only grass species indigenous to Antarctica, has a well developed tolerance of freezing, strongly induced by cold-acclimation. In response to low temperatures D. antarctica exhibits recrystallisation inhibition (RI) activity, localised to the apoplasm, that prevents further growth of ice crystals following freezing.

Citation

John, U. P.; Polotnianka, R. M.; Sivakumaran, K. A.; Mackin, L.; Kuiper, M. J.; Talbot, J. P.; Chew, O.; Nugent, G. D.; Cogan, N. O. I.; Drayton, M. C.; Forster, J. W.; Schrauf, G. E.; and Spangenberg, G. C., "Isolation and Characterisation of Genes Encoding Ice Recrystallisation Inhibition Proteins (IRIPs) in the Cryophilic Antarctic Hair-Grass (Deschampsia Antarctica) and the Temperate Perennial Ryegrass (Lolium Perenne)" (2023). IGC Proceedings (1997-2023). 86.
https://uknowledge.uky.edu/igc/20/satellitesymposium5/86