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MicroRNAs (miRNAs) are small, non-coding RNAs that play essential roles in plant growth, development, and stress response. Populus euphratica is a typical abiotic stress-resistant woody species. This study presents an efficient method for genome-wide discovery of new drought stress responsive miRNAs in P. euphratica. High-throughput sequencing of P.(More)
Water deficit is a serious environmental factor limiting the growth and productivity of plants worldwide. Improvement of drought tolerance and efficient water use are significant strategies to overcome this dilemma. In this study, a drought-responsive transcription factor, nuclear factor Y subunit B 7 (PdNF-YB7), induced by osmotic stress (PEG6000) and(More)
The plant-specific GRAS/SCL transcription factors play diverse roles in plant development and stress responses. In this study, a poplar SCL gene, PeSCL7, was functionally characterized in Arabidopsis thaliana, especially with regard to its role in abiotic stress resistance. Expression analysis in poplar revealed that PeSCL7 was induced by drought and high(More)
Populus euphratica, a typical hydro-halophyte, is ideal for studying salt stress responses in woody plants. MicroRNAs (miRNAs) are endogenous non-coding small RNAs that fulfilled an important post-transcriptional regulatory function. MiRNA may regulate tolerance to salt stress but this has not been widely studied in P. euphratica. In this investigation, the(More)
BACKGROUND CBL1 is a calcium sensor that regulates drought, cold and salt signals in Arabidopsis. Overexpression of CBL1 gene in Arabidopsis and in Ammopiptanthus mongolicus showed different tolerant activities. We are interested in understanding the molecular mechanism of the upstream region of the CBL1 gene of A. mongolicus (AmCBL1). We investigated and(More)
In plants, the calcineurin B-like protein (CBL) family is a unique group of calcium sensors that play a key role in decoding calcium transients by specifically interacting with and regulating a family of CBL-interacting protein kinases. In this study, two CBL genes (PeCBL6 and PeCBL10) from Populus euphratica were isolated by reverse(More)
Some members of the nuclear transcription factor Y subunit B (NF-YB) have been newly reported to regulate a variety of functions in annual plant development and drought tolerance. The overall goal of this study was to identify and characterize the NF-YB genes in the model tree Populus trichocarpa, with the expectation of determining which orthologs in P.(More)
Heat stress, which strongly affects plant performance and often results in reduced vegetative growth and yields depression, has become an increasingly serious global problem. Populus euphratica Oliv. which has been considered as a tree model for the study of plant response to abiotic stresses, could be resistant to an extremely wide environmental(More)
Compared with other Populus species, Populus euphratica Oliv. exhibits better tolerance to abiotic stress, especially those involving extreme temperatures. However, little is known about gene regulation and signaling pathways involved in low temperature stress responses in this species. Recent development of Illumina/Solexa-based deep-sequencing(More)
MicroRNAs (miRNAs) are endogenous small RNAs (sRNAs) with a wide range of regulatory functions in plant development and stress responses. Although miRNAs associated with plant drought stress tolerance have been studied, the use of high-throughput sequencing can provide a much deeper understanding of miRNAs. Drought is a common stress that limits the growth(More)