What is a repositorium?

The repositorium is a searchable database that provides data on relevant articles from journals, company web pages and web pages of governmental agencies about studies/applications of genome-editing in model plants and agricultural crops in the period January 1996 to May 2018. Search options are article type, technique, plant, traits or free text. The repositorium is based on the systematic map of Dominik Modrzejewski et al., published in the journal environmental evidence. (Download article PDF).

Identification of a regulatory element responsible for salt induction of rice OsRAV2 through ex situ and in situ promoter analysis

Typ / Jahr

Journal Article / 2016


Duan, Yong-Bo; Li, Juan; Qin, Rui-Ying; Xu, Rong-Fang; Li, Hao; Yang, Ya-Chun; Ma, Hui; Li, Li; Wei, Peng-Cheng; Yang, Jian-Bo


Salt is a major environmental stress factor that can affect rice growth and yields. Recent studies suggested that members of the AP2/ERF domain-containing RAV (related to ABI3/VP1) TF family are involved in abiotic stress adaptation. However, the transcriptional response of rice RAV genes (OsRAVs) to salt has not yet been fully characterized. In this study, the expression patterns of all five OsRAVs were examined under salt stress. Only one gene, OsRAV2, was stably induced by high-salinity treatment. Further expression profile analyses indicated that OsRAV2 is transcriptionally regulated by salt, but not KCl, osmotic stress, cold or ABA (abscisic acid) treatment. To elucidate the regulatory mechanism of the stress response at the transcriptional level, we isolated and characterized the promoter region of OsRAV2 (POsRAV2). Transgenic analysis indicated that POsRAV2 is induced by salt stress but not osmotic stress or ABA treatment. Serial 5′ deletions and site-specific mutations in POsRAV2 revealed that a GT-1 element located at position −664 relative to the putative translation start site is essential for the salt induction of POsRAV2. The regulatory function of the GT-1 element in the salt induction of OsRAV2 was verified in situ in plants with targeted mutations generated using the CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/ CRISPR-associated protein 9) system. Taken together, our results indicate that the GT-1 element directly controls the salt response of OsRAV2. This study provides a better understanding of the putative functions of OsRAVs and the molecular regulatory mechanisms of plant genes under salt stress.

CRISPR/Cas9; GT-1element; RAV; rice; Salt response
Plant molecular biology
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ID Corresponding Author
Plant Species GE Technique
Sequence Identifier
Type of Alteration
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Key Topic
87 Wie, Peng-Cheng; Yang, Jian-Bo
Oryza sativa CRISPR/Cas9
Salt tolerance
Abiotic stress tolerance