dc.contributor.author | Steinum, Terje Marken | |
dc.contributor.author | AALEN, RB | |
dc.contributor.author | SHARMA, B | |
dc.contributor.author | MUNTHE, E | |
dc.contributor.author | STACY, RAP | |
dc.date.accessioned | 2021-03-03T08:08:16Z | |
dc.date.available | 2021-03-03T08:08:16Z | |
dc.date.issued | 1996 | |
dc.identifier.citation | STACY R., MUNTHE E., Steinum T. M. , SHARMA B., AALEN R., "A peroxiredoxin antioxidant is encoded by a dormancy-related gene, Per1, expressed during late development in the aleurone and embryo of barley grains", PLANT MOLECULAR BIOLOGY, cilt.31, sa.6, ss.1205-1216, 1996 | |
dc.identifier.issn | 0167-4412 | |
dc.identifier.other | vv_1032021 | |
dc.identifier.other | av_15e9561f-651e-4231-b180-6721cb551229 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12627/20079 | |
dc.identifier.uri | https://doi.org/10.1007/bf00040837 | |
dc.description.abstract | Antioxidants can remove damaging reactive oxygen species produced as by-products of desiccation and respiration during late embryogenesis, imbibition of dormant seeds and germination. We have expressed a protein, PER1, encoded by the Balem (barley aleurone and embryo) transcript previously called B15C, and show it to reduce oxidative damage in vitro. PER1 shares high similarity to a novel group of thiol-requiring antioxidants, named peroxiredoxins, and represents a subgroup with only one conserved cysteine residue (l-Cys). PER1 is the first antioxidant belonging to the l-Cys subgroup shown to be functionally active, and the first peroxiredoxin of any kind to be functionally described in plants. The steady state level of the transcript, Per1, homologous to a dormancy-related transcript (pBS128) from bromegrass (Bromus secalinus), increases considerably in imbibed embryos from dormant barley (Hordeum vulgare L.) grains. Our investigations also indicate that Per1 transcript levels are dormancy-related in the aleurone layer of whole grains. In contrast to most seed-expressed antioxidants Per1 disappears in germinating embryos, and in the mature aleurone the transcript is down-regulated by the germinating embryo or by gibberellic acid (GA). Our data show that the barley seed peroxiredoxin is encoded by a single Per1 gene. Possible roles of the PER1 peroxiredoxin in barley grains during desiccation, dormancy and imbibition are discussed. | |
dc.language.iso | eng | |
dc.subject | Ziraat | |
dc.subject | BİYOKİMYA VE MOLEKÜLER BİYOLOJİ | |
dc.subject | Moleküler Biyoloji ve Genetik | |
dc.subject | Yaşam Bilimleri (LIFE) | |
dc.subject | BİTKİ BİLİMLERİ | |
dc.subject | Bitki ve Hayvan Bilimleri | |
dc.subject | Tarım ve Çevre Bilimleri (AGE) | |
dc.subject | Tarımsal Bilimler | |
dc.subject | Bitki Koruma | |
dc.subject | Fitopatoloji | |
dc.subject | Yaşam Bilimleri | |
dc.subject | Moleküler Biyoloji ve Genetik | |
dc.subject | Sitogenetik | |
dc.subject | Temel Bilimler | |
dc.title | A peroxiredoxin antioxidant is encoded by a dormancy-related gene, Per1, expressed during late development in the aleurone and embryo of barley grains | |
dc.type | Makale | |
dc.relation.journal | PLANT MOLECULAR BIOLOGY | |
dc.contributor.department | , , | |
dc.identifier.volume | 31 | |
dc.identifier.issue | 6 | |
dc.identifier.startpage | 1205 | |
dc.identifier.endpage | 1216 | |
dc.contributor.firstauthorID | 100603 | |