Related Experiment Video
Updated: Apr 17, 2026

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions
Published on: August 25, 2018
OsCTP1 negatively regulates seedling cold tolerance in rice
Peng Liu1,2, Xuan Huang1,3, Yuqi Xia1,3
1Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.
Researchers identified OsCTP1 as a negative regulator of cold tolerance in rice seedlings. This gene may offer a new avenue for improving rice crops against cold stress through molecular breeding.
Area of Science:
- Plant molecular biology
- Genetics
- Agronomy
Background:
- Cold stress significantly impacts rice production and grain quality.
- Cold tolerance is a complex quantitative trait influenced by multiple genes and environmental factors.
Purpose of the Study:
- To identify and characterize novel genes involved in regulating cold tolerance in rice.
- To elucidate the role of OsCTP1 in rice seedling response to cold stress.
Main Methods:
- Gene identification and cloning (OsCTP1, a homolog of Arabidopsis AtSLP2).
- Subcellular localization (ER and Mitochondria) and expression pattern analysis.
- Transcriptomic analysis to identify regulatory pathways.
- Phenotypic evaluation under cold and abscisic acid (ABA) treatments.
Main Results:
- OsCTP1 was identified as a negative regulator of seedling cold tolerance in rice.
- OsCTP1 is localized to the endoplasmic reticulum and mitochondria.
- OsCTP1 appears to suppress the OsWRKY76/OsbHLH148‑OsDREB1B signaling pathway.
- OsCTP1 may function in an ABA-dependent manner, suggesting a role in cold signaling.
Conclusions:
- OsCTP1 is a key genetic resource for understanding low-temperature signaling in rice.
- OsCTP1 is a promising candidate gene for molecular breeding to enhance rice cold tolerance.
Related Concept Videos
Responses to Heat and Cold Stress
Gene Regulation During Sporulation
Regulation of Transpiration by Stomata
Responses to Salt Stress
Adaptations that Reduce Water Loss
Introduction to Plant Diversity

