Jasmonic acid crosstalk with secondary metabolites and plant growth regulators to maintain redox balance during crop improvement under salt stress.
Rather BA, Mir IR, Mahajan M, Qiao F, Jiang X
Plant Signaling
Salt is quietly creeping into farmland worldwide — and the same chemical plants use to defend against pests turns out to be a key reason some crops survive while others wilt in salty soil.
Plants make a hormone called jasmonic acid when they're stressed, and it turns out this hormone is like a fire coordinator — it rallies antioxidants and protective compounds to fight the damage caused by salty soil. Salty soil is a growing problem because it builds up over decades of irrigation and is worsened by drought, threatening the food supply for billions of people. Scientists are now looking at ways to genetically tweak how plants produce this hormone so crops can better handle salty conditions without sacrificing growth.
Key Findings
Jasmonic acid regulates reactive oxygen species (ROS) homeostasis under salt stress by driving accumulation of antioxidants and secondary metabolites including flavonoids, alkaloids, terpenes, and phenolics.
Jasmonic acid engages in hormonal crosstalk with at least five other plant growth regulators — abscisic acid, ethylene, salicylic acid, gibberellins, and auxins — to balance growth-vs-defense trade-offs under salt stress.
CRISPR/Cas9 gene editing of jasmonic acid biosynthesis and signaling pathways is identified as a promising biotechnological strategy to engineer salt-tolerant crop varieties.
chevron_right Technical Summary
Jasmonic acid, a natural plant hormone, acts as a master switch that helps crops survive salty soils by coordinating antioxidant defenses, secondary metabolites, and other hormones. This review also highlights how CRISPR gene editing could be used to engineer salt-tolerant crops by tweaking jasmonic acid pathways.
Abstract Preview
As global agricultural soils face the escalating challenge of salt stress, understanding mechanisms of plant resilience becomes critical. Salt stress severely constrains crop production worldwide b...
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Crop-improvement refers to the systematic enhancement of plant varieties through selective breeding, genetic modification, and biotechnological approaches to develop cultivars with superior agronomic, nutritional, or environmental traits. This field is essential for addressing global food security,
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