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Stress-induced expression of the sweetpotato gene IbLEA14 in poplar confers enhanced tolerance to multiple abiotic stresses
Ke, Qingbo1; Park, Sung-Chul2; Ji, Chang Yoon2,3; Kim, Ho Soo2; Wang, Zhi1; Wang, Shiwen1; Li, Hongbing1; Xu, Bingcheng1; Deng, Xiping1; Kwak, Sang-Soo2,3
2018-12-01
Source PublicationENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN0098-8472
Volume156Pages:261-270
Corresponding AuthorKwak, Sang-Soo(sskwak@kribb.re.kr)
AbstractLate embryogenesis abundant (LEA) proteins are small, highly hydrophilic proteins that act as protectors of macromolecules and increase abiotic stress tolerance in plants. We previously reported that overexpressing sweetpotato IbLEA14 under the control of the CaMV 35S promoter increased osmotic and salt stress tolerance in transgenic sweetpotato calli. In this study, we generated transgenic poplar plants (Populus alba x P. glandulosa) expressing IbLEA14 under the control of the oxidative stress-inducible SWPA2 promoter (referred to as SL plants). Among the 15 SL plants obtained, three lines (SL2, SL7, and SL12) were established based on IbLEA14 transcript levels, tolerance to salt stress and Southern blot analysis. The SL plants exhibited less damage in response to methyl viologen-mediated oxidative stress than non-transgenic (NT) plants. SL plants also showed enhanced tolerance to drought, salt, and heat stress, which was associated with higher photosystem II efficiency and lower malondialdehyde levels compared with NT plants. Furthermore, SL plants had higher levels of monolignol biosynthesis-related gene transcripts under drought stress compared with NT plants. Finally, SL plants exhibited increased tolerance to heat stress, which is associated with the high thermostability of IbLEA14 protein. SL plants might be useful for reforestation on global marginal lands, including desertification and reclaimed areas.
KeywordTransgenic poplar IbLEA14 Abiotic stress SWPA2 Lignin
DOI10.1016/j.envexpbot.2018.09.014
WOS KeywordEMBRYOGENESIS-ABUNDANT PROTEINS ; TRANSGENIC TOBACCO PLANTS ; HYDROPHOBIC LEA PROTEIN ; OXIDATIVE STRESS ; CELL-WALL ; LIGNIN BIOSYNTHESIS ; COLD-ACCLIMATION ; IN-VITRO ; GROWTH ; HYDROPHILINS
Indexed BySCI
Language英语
Funding ProjectKRIBB Initiative Program ; Korea-China International Collaboration Project, National Research Foundation of Korea (NRF) ; 111 Project of the Ministry of Education, China[B12007] ; Ph.D. Programs Foundation of Ministry of Education of China[2452018005]
Funding OrganizationKRIBB Initiative Program ; Korea-China International Collaboration Project, National Research Foundation of Korea (NRF) ; 111 Project of the Ministry of Education, China ; Ph.D. Programs Foundation of Ministry of Education of China
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology
WOS SubjectPlant Sciences ; Environmental Sciences
WOS IDWOS:000448093600025
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52768
Collection中国科学院地理科学与资源研究所
Corresponding AuthorKwak, Sang-Soo
Affiliation1.Northwest A&F Univ, Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.KRIBB, Plant Syst Engn Res Ctr, 125 Gwahak Ro, Daejeon 34141, South Korea
3.Korea Univ Sci & Technol UST, KRIBB Sch Biotechnol, Dept Environm Biotechnol, 217 Gajeong Ro, Daejeon 34113, South Korea
Recommended Citation
GB/T 7714
Ke, Qingbo,Park, Sung-Chul,Ji, Chang Yoon,et al. Stress-induced expression of the sweetpotato gene IbLEA14 in poplar confers enhanced tolerance to multiple abiotic stresses[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2018,156:261-270.
APA Ke, Qingbo.,Park, Sung-Chul.,Ji, Chang Yoon.,Kim, Ho Soo.,Wang, Zhi.,...&Kwak, Sang-Soo.(2018).Stress-induced expression of the sweetpotato gene IbLEA14 in poplar confers enhanced tolerance to multiple abiotic stresses.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,156,261-270.
MLA Ke, Qingbo,et al."Stress-induced expression of the sweetpotato gene IbLEA14 in poplar confers enhanced tolerance to multiple abiotic stresses".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 156(2018):261-270.
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