Plants use sugar and nutrient signals to fine-tune their hormones
Murtaza G, Ahmed Z, Ullah S, Alotaibi MS, Ali S, Iqbal R.
Plant Signaling
Every time your tomato plant decides whether to grow taller or brace for drought, it's running a conversation between sugar levels and hormones happening in real time inside every leaf and root you can see in your garden.
Scientists have long studied plant hormones like auxin and ethylene as separate on-off switches, but this review pulls together evidence that they're actually in constant dialogue with the plant's metabolism, things like sugar, amino acids, and antioxidants. That means a plant deciding how fast to grow or how to cope with drought is weighing its energy and nutrient status just as much as any single hormone signal. Understanding this two-way conversation could help scientists breed crops that balance growth and stress tolerance more efficiently.
Key Findings
Ten major plant hormones (including salicylic acid, gibberellins, auxin, ABA, and jasmonates) share regulatory feedback loops with core metabolites like sucrose, glutathione, and 2-oxoglutarate
Metabolic signals such as trehalose-6-phosphate and reactive oxygen species act as shared control nodes influencing multiple hormone pathways simultaneously rather than single linear chains
New tools like single-cell omics, live biosensors, and isotope tracing are identified as key methods for building predictive models of this hormone-metabolism network
chevron_right Technical Summary
Scientists reviewed decades of plant research to show that hormones and metabolism aren't separate systems but constantly talk to each other, with sugars and other everyday molecules acting as switches that fine-tune plant growth and stress responses.
Abstract Preview
Original paper
Hormone-metabolism crosstalk in plants: an integrated signaling network coordinating growth and stress adaptation.
Plant growth, stress adaptation, and productivity depend on the continuous exchange of information between hormone signaling and metabolic networks. Although major phytohormones have been widely st...
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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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