The roles of strigolactones in plant resilience to environmental stresses

Yanting Wang; Mohammad Golam Mostofa; Feifei Yi; Lam-Son Phan Tran; Weiqiang Li

doi:10.1016/j.jgg.2025.12.001

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The roles of strigolactones in plant resilience to environmental stresses

doi: 10.1016/j.jgg.2025.12.001

a. College of Agriculture and Biology, Liaocheng University, Liaocheng, Shandong 252000, China;
b. Department of Chemistry, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, USA;
c. State Key Laboratory of Cotton Biology, Academy for Advanced Interdisciplinary Studies, School of Life Sciences, School of Mathematics and Statistics, School of Computer and Information Engineering, Henan University, Kaifeng, Henan 475004, China;
d. Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA;
e. State Key Laboratory of Black Soils Conservation and Utilization, Jilin Da'an Agro-ecosystem National Observation and Research Station, Changchun Jingyuetan Remote Sensing Experiment Station, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130102, China

Funds:

The work was supported by Shandong Provincial Natural Science Foundation (ZR2023QC016), Liaocheng University (318052288), Strategic Priority Research Program of the Chinese Academy of Sciences (XDA28110100), National Key Research and Development Program of China (2022YFD1500505), and the Natural Science Foundation of China (No.32370321).

Received Date: 2025-07-22
Accepted Date: 2025-12-03
Rev Recd Date: 2025-12-01

Available Online: 2025-12-09

Abstract

Abstract

Strigolactones (SLs) are a group of phytohormones that enhance hyphal branching of arbuscular mycorrhizal fungi (AMF), promote seed germination of parasitic plants, and influence plant growth, development, and stress acclimation. SLs improve plant stress resilience by modulating shoot and root architecture, photosynthesis, nutrient homeostasis, and antioxidant defense. Under nutrient deficiency, SL accumulation enhances AMF colonization and triggers the expression of genes related to the nutrient starvation response. When subjected to drought, SLs mitigate water loss by modulating stomatal density and closure, cell membrane integrity, and anthocyanin biosynthesis. SLs also mitigate salinity and heavy metal stresses by maintaining ion homeostasis, while conferring thermotolerance and enhancing chilling tolerance. In this review, we highlight recent advances in SLs and their mechanisms in plant responses to environmental stresses, including nutrient deficiencies, drought, salinity, extreme temperatures, metal toxicity, herbivore attack, and pathogen infection. We further discuss how SLs interact with other phytohormones to coordinate the physiological, biochemical, and molecular regulatory events critical for plant acclimation to abiotic and biotic stresses.
- Strigolactones,
- Stress resilience,
- Hormonal crosstalk,
- Signaling,
- Abiotic and biotic stresses

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References(146)

References

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