English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Salt stress is one of the main factors that affect both growth and development of plants. Maintaining K + /Na +  balance in the cytoplasm is important for metabolism as well as salt resistance in plants. In the present study, we monitored the growth (height and diameter) of transgenic  Populus alba  ×  P. berolinensis  trees (ABJ01) carrying  JERF36s  gene (a tomato jasmonic/ethylene responsive factors gene) over 4 years, which showed faster growth and significant salt tolerance compared with non-transgenic poplar trees (9#). The expression of  NHX1  and  SOS1  genes that encode Na + /H +  antiporters in the vacuole and plasma membranes was measured in leaves under NaCl stress. Non-invasive micro-test techniques (NMT) were used to analyse ion flux of Na + , K + , and H +  in the root tip of seedlings under treatment with100 mM NaCl for 7, 15, and 30 days. Results showed that the expression of  NHX1  and  SOS1  was much higher in ABJ01 compared with 9#, and the Na +  efflux and H +  influx fluxes of root were remarkable higher in ABJ01 than in 9#, but K +  efflux exhibited lower level. All above suggest that salt stress induces  NHX1  and  SOS1  to a greater expression level in ABJ01, resulting in the accumulation of Na + /H +  antiporter to better maintain K + /Na +  balance in the cytoplasm of this enhanced salt resistant variety. This may help us to better understand the mechanism of transgenic poplars with improving salt tolerance by overexpressing  JERF36s  and could provide a basis for future breeding programs aimed at improving salt resistance in transgenic poplar.

Effect of Overexpression of JERFs on Intracellular K+/Na+ Balance in Transgenic Poplar (Populus alba × P. berolinensis) Under Salt Stress