Photosynthetica 2018, 56(4):998-1009 | DOI: 10.1007/s11099-018-0824-6

Transcriptome profiling of genes involved in photosynthesis in Elaeagnus angustifolia L. under salt stress

J. Lin1, J. P. Li1, F. Yuan1, Z. Yang1, B. S. Wang1,*, M. Chen1,*
1 Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Shandong, China

High salt concentration is a major abiotic stress limiting plant growth and productivity in many areas of the world. Elaeagnus angustifolia L. adapts to adverse environments and is widely planted in the western region of China as a windbreaker and for landscape and soil stabilization. High salt concentrations inhibited photosynthesis of E. angustifolia, but the mechanism is not known. In this paper, RNA-sequencing was used to investigate effects of salt stress on the photosynthetic characteristics of the species. In total, 584 genes were identified and involved in photosynthetic pathways. The downregulation of genes that encode key enzymes involved in photosynthesis and genes correlated to important structures in photosystem and light-harvesting complexes might be the main reason, particularly, the downregulation of the gene that encodes magnesium chelatase. This would decrease the activity of enzymes involved in chlorophyll synthesis and the downregulation of the key gene that encodes Rubisco, and thereby decreases enzyme activity and the protein content of Rubisco.

Additional key words: biomass; greening; ion concentrations; photosynthetic parameters; plant height

Received: June 27, 2017; Accepted: November 22, 2017; Prepublished online: December 1, 2018; Published: November 1, 2018Show citation

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Lin, J., Li, J.P., Yuan, F., Yang, Z., Wang, B.S., & Chen, M. (2018). Transcriptome profiling of genes involved in photosynthesis in Elaeagnus angustifolia L. under salt stress. Photosynthetica, 56(4), 998-1009. doi: 10.1007/s11099-018-0824-6
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