A study reveals a novel mechanism in roses where the Tryptophan-rich sensory protein (TSPO) degrades the ethylene receptor ETHYLENE RESPONSE 3 (RhETR3) to enhance salt tolerance. This discovery sheds light on the complex relationship between ethylene signaling and salt stress responses in plants, potentially guiding future agricultural practices to develop salt-resistant crops.
Soil salinity is a significant challenge affecting plant growth and crop yields worldwide. Roses, being heavily reliant on irrigation, are particularly vulnerable to salt stress, which reduces their productivity and quality. Ethylene, a key phytohormone, plays a crucial role in plant stress responses, but its mechanisms in regulating salt tolerance are not fully understood. Due to these challenges, in-depth research is essential to uncover how ethylene signaling can be manipulated to enhance salt tolerance in plants.
Researchers from China Agricultural University and Shenzhen Polytechnic have published a study (DOI: 10.1093/hr/uhae040) in Horticulture Research on February 15, 2024, elucidating how the Tryptophan-rich sensory protein (TSPO) in roses degrades the ethylene receptor ETHYLENE RESPONSE 3 (RhETR3) to promote salt tolerance. This study highlights the intricate mechanisms of ethylene signaling and its impact on plant stress responses. The findings reveal how the degradation of RhETR3 enhances ethylene production, thereby boosting the plant's ability to withstand salinity.
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