BROWSE

Related Scientist

Lee, Sichul's photo.

Lee, Sichul
식물 노화·수명 연구단
more info

ITEM VIEW & DOWNLOAD

OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions

Cited 0 time in webofscience Cited 0 time in scopus
43 Viewed 0 Downloaded
Title
OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions
Author(s)
Sichul Lee; Joonheum Park; Jinwon Lee; Dongjin Shin; Anne Marmagne; Pyung Ok Lim; Céline Masclaux-Daubresse; Gynheung An; Hong Gil Nam
Subject
CYTOSOLIC GLUTAMINE-SYNTHETASE, ; ASPARAGINE-SYNTHETASE, ; USE EFFICIENCY, ; GENE-EXPRESSION, ; ARABIDOPSIS, ; ASSIMILATION, ; AMMONIUM, ; METABOLISM, ; TRANSPORTER, ; LESSONS
Publication Date
2020-07
Journal
PLANT AND CELL PHYSIOLOGY, v.61, no.7, pp.1309 - 1320
Publisher
OXFORD UNIV PRESS
Abstract
Nitrogen (N) is a major limiting factor affecting crop yield in unfertilized soil. Thus, cultivars with a high N use efficiency (NUE) and good grain protein content (GPC) are needed to fulfill the growing food demand and to reduce environmental burden. This is especially true for rice (Oryza sativa L.) that is cultivated with a high input of N fertilizer and is a primary staple food crop for more than half of the global population. Here, we report that rice asparagine synthetase 1 (OsASN1) is required for grain yield and grain protein contents under both N-sufficient (conventional paddy fields) and N-limiting conditions from analyses of knockout mutant plants. In addition, we show that overexpression (OX) of OsASN1 results in better nitrogen uptake and assimilation, and increased tolerance to N limitation at the seedling stage. Under field conditions, the OsASN1 OX rice plants produced grains with increased N and protein contents without yield reduction compared to wild-type (WT) rice. Under N-limited conditions, the OX plants displayed increased grain yield and protein content with enhanced photosynthetic activity compared to WT rice. Thus, OsASN1 can be an effective target gene for the development of rice cultivars with higher grain protein content, NUE, and grain yield under N-limiting conditions.
URI
https://pr.ibs.re.kr/handle/8788114/7754
DOI
10.1093/pcp/pcaa060
ISSN
0032-0781
Appears in Collections:
Center for Plant Aging Research (식물 노화·수명 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

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

Browse