Exogenous Strigolactones alleviate KCl stress by regulating photosynthesis, ROS migration and ion transport in Malus hupehensis Rehd

The application of large amounts of potash fertilizer in apple orchards leads to worsening KCl stress

Xiaodong Zheng; Yuqi Li; Xiangli Xi; Changqing Ma; Zhijuan Sun; Xueqing Yang; Xiangyang Li; Yike Tian; Caihong Wang

2020

Scholarcy highlights

  • The application of large amounts of potash fertilizer in apple orchards leads to worsening KCl stress
  • Exogenous SL strengthened the enzyme activities of peroxidase and catalase, thereby eliminating reactive oxygen species production induced by KCl stress, promoting the accumulation of proline, and maintaining osmotic balance
  • Exogenous SL expelled K+ outside of the cytoplasm and compartmentalized K+ into the vacuole, increased the contents of Na+, Mg2+, Fe2+, and Mn2+ in the cytoplasm to maintain the ion homeostasis under KCl stress

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