Cell wall polysaccharide synthase can improve the salt tolerance of rice

Cell wall polysaccharide synthase can improve the salt tolerance of rice

Cell wall polysaccharide synthase can improve the salt tolerance of rice Cell wall polysaccharide synthase can improve the salt tolerance of rice

Research reveals a new mechanism for cell wall polysaccharide synthase to improve rice salt stress tolerance.
Image courtesy of the Chinese Academy of Agricultural Sciences

 Research reveals a new mechanism for cell wall polysaccharide synthase to improve rice salt stress tolerance.
Image courtesy of the Chinese Academy of Agricultural Sciences

Recently, the Crop Stress Tolerance Regulation and Improvement Innovation Team of the Institute of Biotechnology of the Chinese Academy of Agricultural Sciences discovered that the cell wall polysaccharide synthase OsCSLD4 plays an important role in rice salt stress response and grain development, revealing the potential of cell wall regulation of plant growth and development and stress adaptability Pathways and molecular mechanisms, related results were published in " Plant Biotechnology Journal " ( Plant Biotechnology Journal )
.

Plant Biotechnology Journal

According to researcher Zhang Zhijin, stress tolerance and yield are a contradictory and unified issue in the cultivation of crop varieties.
Stress tolerance is the basis for high and stable yields of crop varieties, but it is difficult to have both stress tolerance and high yield traits
.

Therefore, analyzing the internal correlation mechanism of crop stress tolerance and yield formation is an important scientific issue in the research of crop stress tolerance regulation mechanism

OsCSLD4 is a plant cellulose synthase protein, which is involved in the synthesis of a variety of carbohydrates in plant cell walls
.

Physiological, biochemical and molecular biology experiments showed that inhibition or deletion of OsCSLD4 can significantly reduce the salt tolerance of rice, and overexpression of OsCSLD4 can increase the salt tolerance of rice, suggesting that it plays an important role in the response of rice to salt stress

Transcriptome analysis showed that the loss of OsCSLD4 function affects the expression of ABA synthesis and response genes, cell wall synthesis and modification genes, stress response genes, and a large number of signal transduction genes.
It is speculated that OsCSLD4 may regulate plant growth and development processes and cells through cell wall signal proteins.
The activities of internal ABA synthesis and signal pathways promote rice grain development and increase salt stress tolerance, and synergistically improve rice stress tolerance and yield
.

This study explains the synergistic mechanism of cell wall in crop abiotic stress tolerance and grain development, and provides new research ideas for the cultivation of new varieties of high-yield stress-tolerant crops
.

The research was funded by the National Natural Science Foundation of China and the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences
.

(Source: China Science News Li Chen and Cui Yan)

Related paper information: https://doi.

Related paper information: https://doi.
org/10.
1111/pbi.
13729 https://doi.
org/10.
1111/pbi.
13729