AI Article Synopsis

  • - The study identifies human TTP (hTTP) as functionally similar to a plant protein (PdC3H17) in hybrid poplar, both of which contain similar CCCH zinc-finger RNA-binding domains.
  • - When hTTP is expressed in poplar, it leads to dwarfism, increased stem xylem vessel numbers, and improved photosynthesis and ROS-scavenging abilities, enhancing the plant's tolerance to drought stress.
  • - The findings imply that hTTP may function in plants via the PdC3H17 system, showcasing the potential for using animal genes in plant biology.

Article Abstract

The CCCH zinc finger proteins play critical roles in a wide variety of growth, development, and stress responses. Currently, limited reports are available about the roles of animal CCCH proteins in plants. In this study, we report the identification of human TTP (hTTP) with functional similarity to PdC3H17 in a hybrid poplar. hTTP and PdC3H17 shared highly similar tandem CCCH zinc-finger RNA-binding domains. The fragments excluding the CCCH domain of both hTTP and PdC3H17 possessed transcriptional activation activities in yeast cells. Compared to the controls, ectopic expression of in poplar caused dwarfism, and resulted in significant increases in stem xylem vessel number and photosynthetic and ROS-scavenging abilities, thereby enhancing plant tolerance to drought stress. Our results suggest that hTTP may perform a function in poplar through the PdC3H17-mediated system, and provide an example for the application of animal genes in plants.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11524242PMC
http://dx.doi.org/10.48130/forres-0024-0008DOI Listing

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