KOPRI Repository

Poaceae Type II Galactinol Synthase 2 from Antarctic Flowering Plant Deschampsia antarctica and Rice Improves Cold and Drought Tolerance by Accumulation of Raffinose Family Oligosaccharides in Transgenic Rice Plants

Cited 4 time in wos
Cited 5 time in scopus
Metadata Downloads
Title
Poaceae Type II Galactinol Synthase 2 from Antarctic Flowering Plant Deschampsia antarctica and Rice Improves Cold and Drought Tolerance by Accumulation of Raffinose Family Oligosaccharides in Transgenic Rice Plants
Other Titles
남극좀새풀의 갈락티놀 합성효소 유전자를 과발?하는 벼 형질전환체에서 건조와 저온 내성 증진 효과 확인
Authors
Cui, Li Hua
Byun, Mi Young
Oh, Hyeong Geun
Kim, Sung Jin
Lee, Jungeun
Park, Hyun
Lee, Hyoungseok
Kim, Woo Taek
Subject
Plant Sciences; Cell Biology
Keywords
Antarctic flowering plant; Deschampsia antarctica; transgenic rice plants; Poaceae type II galactinol synthase; Raffinose family oligosaccharides; Transgenic rice plants; Cold and drought tolerance
Issue Date
2020-01
Citation
Cui, Li Hua, et al. 2020. "Poaceae Type II Galactinol Synthase 2 from Antarctic Flowering Plant Deschampsia antarctica and Rice Improves Cold and Drought Tolerance by Accumulation of Raffinose Family Oligosaccharides in Transgenic Rice Plants". PLANT AND CELL PHYSIOLOGY, 61(1): 88-104.
Abstract
Deschampsia antarctica is a Poaceae grass that has adapted to and colonized Antarctica. When D. antarctica plants were subjected to cold and dehydration stress both in the Antarctic field and in laboratory experiments, galactinol, a precursor of raffinose family oligosaccharides (RFOs), and raffinose were highly accumulated, which was accompanied by upregulation of galactinol synthase (GolS). The Poaceae monocots have a small family of GolS genes, which are divided into two distinct groups called types I and II. Type II GolSs are highly expanded in cold-adapted monocot plants. Transgenic rice plants, in which type II D. antarctica GolS2 (DaGolS2) and rice GolS2 (OsGolS2) were constitutively expressed, were markedly tolerant to cold and drought stress as compared to the wild-type rice plants. The RFO contents and GolS enzyme activities were higher in the DaGolS2- and OsGolS2-overexpressing progeny than in the wild-type plants under both normal and stress conditions. DaGolS2 and OsGolS2 overexpressors contained reduced levels of ROS relative to the wild-type plants after cold and drought treatments. Overall, these results suggest that Poaceae type II GolS2s play a conserved role in D. antarctica and rice in response to drought and cold stress by inducing the accumulation of RFO and decreasing ROS levels.
URI
https://repository.kopri.re.kr/handle/201206/11004
DOI
http://dx.doi.org/10.1093/pcp/pcz180
Appears in Collections  
2019-2019, Polar Genomics 101 Project: Genome analysis of polar organisms and establishment of application platform (19-19) / Kim, Jin-Hyoung (PE19080)
Files in This Item

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse