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dc.titleOscrp1, a ribonucleoprotein gene, regulates chloroplast mrna stability that confers drought and cold tolerance
dc.contributor.authorBang, Seung Woon
dc.contributor.authorLee, Ho Suk
dc.contributor.authorPark, Su-Hyun
dc.contributor.authorLee, Dong-Keun
dc.contributor.authorSeo, Jun Sung
dc.contributor.authorKim, Youn Shic
dc.contributor.authorPark, Soo-Chul
dc.contributor.authorKim, Ju-Kon
dc.identifier.citationBang, Seung Woon, Lee, Ho Suk, Park, Su-Hyun, Lee, Dong-Keun, Seo, Jun Sung, Kim, Youn Shic, Park, Soo-Chul, Kim, Ju-Kon (2021-02-07). Oscrp1, a ribonucleoprotein gene, regulates chloroplast mrna stability that confers drought and cold tolerance. International Journal of Molecular Sciences 22 (4) : 1-16. ScholarBank@NUS Repository.
dc.description.abstractChloroplast ribonucleoproteins (cpRNPs) are nuclear-encoded and highly abundant proteins that are proposed to function in chloroplast RNA metabolism. However, the molecular mechanisms underlying the regulation of chloroplast RNAs involved in stress tolerance are poorly un-derstood. Here, we demonstrate that CHLOROPLAST RNA-BINDING PROTEIN 1 (OsCRP1), a rice (Oryza sativa) cpRNP gene, is essential for stabilization of RNAs from the NAD(P)H dehydrogenase (NDH) complex, which in turn enhances drought and cold stress tolerance. An RNA-immunopre-cipitation assay revealed that OsCRP1 is associated with a set of chloroplast RNAs. Transcript profiling indicated that the mRNA levels of genes from the NDH complex significantly increased in the OsCRP1 overexpressing compared to non-transgenic plants, whereas the pattern in OsCRP1 RNAi plants were opposite. Importantly, the OsCRP1 overexpressing plants showed a higher cyclic electron transport (CET) activity, which is essential for elevated levels of ATP for photosynthesis. Ad-ditionally, overexpression of OsCRP1 resulted in significantly enhanced drought and cold stress tolerance with higher ATP levels compared to wild type. Thus, our findings suggest that overex-pression of OsCRP1 stabilizes a set of mRNAs from genes of the NDH complex involved in increasing CET activity and production of ATP, which consequently confers enhanced drought and cold tolerance. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
dc.publisherMDPI AG
dc.rightsAttribution 4.0 International
dc.sourceScopus OA2021
dc.subjectChloroplast ribonucleoproteins
dc.subjectCold tolerance
dc.subjectDrought tolerance
dc.subjectNAD(P)H dehydrogenase (NDH) complex
dc.subjectOryza sativa
dc.contributor.departmentDEAN'S OFFICE (SSH SCH OF PUBLIC HEALTH)
dc.description.sourcetitleInternational Journal of Molecular Sciences
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