![]() ![]() #Falling hearts clear background professional#.Ice recrystallization inhibition proteins (IRIPs) and freeze tolerance in the cryophilic Antarctic hair grass Deschampsia antarctica E. Ice recrystallization inhibition proteins (IRIPs) and freeze tolerance in the cryophilic. CHEW, ORINDA MACKIN, LEANNE KUIPER, MICHAEL J. SPANGENBERG, GERMAN C.ĪBSTRACT Antarctic hair grass (Deschampsia antarctica E. Desv.), the only grass indigenous to Antarctica, has well‐developed freezing tolerance, strongly induced by cold acclimation. Here, we show that in response to low temperatures, D. antarctica expresses potent recrystallization inhibition (RI) activity that, inhibits the growth of small ice crystals into potentially damaging large ones, is proteinaceous and localized to the apoplasm. antarctica encoding putative homologs of an ice recrystallization inhibition protein (IRIP) has been isolated and characterized. IRIPs are apoplastically targeted proteins with two potential ice‐binding motifs: 1–9 leucine‐rich repeats (LRRs) and c. IRIP genes appear to be confined to the grass subfamily Pooideae and their products, exhibit sequence similarity to phytosulphokine receptors and are predicted to adopt conformations with two ice‐binding surfaces. antarctica IRIP (DaIRIP) transcript levels are greatly enhanced in leaf tissue following cold acclimation. Transgenic Arabidopsis thaliana expressing a DaIRIP has novel RI activity, and purified DaIRIP, when added back to extracts of leaves from non‐acclimated D. antarctica, can reconstitute the activity found in acclimated plants. We propose that IRIP‐mediated RI activity may contribute to the cryotolerance of D. Jr/Sr High School - Staff Profiles - McMurray, Eric.Jr/Sr High School - Staff Profiles - Lister, Craig.Jr/Sr High School - Staff Profiles - Lienemann, Brooke.Jr/Sr High School - Staff Profiles - Larsen, Justin.Jr/Sr High School - Staff Profiles - Kostal, Pamela.Jr/Sr High School - Staff Profiles - Goeking, Michelle.Jr/Sr High School - Staff Profiles - Garcia, Devin.Jr/Sr High School - Staff Profiles - Easley, Garrett.Jr/Sr High School - Staff Profiles - Day, Deena.Jr/Sr High School - Staff Profiles - Coufal, Amy.Jr/Sr High School - Staff Profiles - Bohling, Lisa.Jr/Sr High School - Staff Profiles - Becker, Rita.Jr/Sr High School - Staff Profiles - Arnold, Terry.Jr/Sr High School - Go to Staff Profiles.Dropdown Toggle Jr/Sr High School - Staff Profiles.Elementary School - Staff Profiles - Weyer, Michelle.Elementary School - Staff Profiles - Vitosh, Carly.Elementary School - Staff Profiles - Swanson, Helen.Elementary School - Staff Profiles - Skidmore, Jeanne.Elementary School - Staff Profiles - Schluter, Chris.Elementary School - Staff Profiles - Noyd, Emmie.Elementary School - Staff Profiles - Kotas, Brittney.Elementary School - Staff Profiles - Kostal, Abby.Elementary School - Staff Profiles - Hynek, Janel.Elementary School - Staff Profiles - Hinrichs, Dylan.Elementary School - Staff Profiles - Hestermann, Reba.Elementary School - Staff Profiles - Hennerberg, Stacy.Elementary School - Staff Profiles - Heble, Patty.Elementary School - Staff Profiles - Haecker, Karlee.Elementary School - Staff Profiles - Denner, John.Elementary School - Staff Profiles - Cooper, Ashtyn.Elementary School - Staff Profiles - Becker, Rita.Elementary School - Go to Staff Profiles.Dropdown Toggle Elementary School - Staff Profiles.Elementary School - Preschool - Typical Preschool Day.Elementary School - Preschool - Preschool Handbook.Elementary School - Preschool - Enrollment Information.Elementary School - Preschool - Daily Schedule.Dropdown Toggle Elementary School - Preschool.Elementary School - Elementary Staff Directory.District - School Health - Wellness Policy.District - School Health - From Our Nurse.District - School Health - Health Forms.Dropdown Toggle District - School Health.Dropdown Toggle District - School Board.ĭistrict - Administration - Mezger, Matt.District - Administration - Meyerle, Mike.Dropdown Toggle District - Administration.antarctica, and thus to its unique ability to have colonized Antarctica. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |