Eunyoung Shim, Hana Park, Yu Jung Choi, Giuseppe C Zuccarello, Gwang Hoon Kim
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引用次数: 0
Abstract
The correct development of an organism is critical for its survival and reproduction, especially the early stages of establishment. Early developmental stages require close control and careful signaling between cells and genetic networks. Red algae also undergo critical developmental stages, but very little is known about these processes or their control. An important developmental signal is the redox state of a cell. The complex life cycle of red algae also involves the intricate development of the fertilized egg to produce diploid spores (carpospores). We examined the effect of redox perturbation on the life cycle of Bostrychia moritziana, focusing on critical stages of spore development, the formation of meiospores (tetraspores), and the development of the diploid carposporophytes. Our results showed that spore development follows a distinct pattern of asymmetrical division and differentiation, regulated by reactive oxygen species (ROS) signaling. Reactive oxygen species were observed to accumulate specifically at the dividing plane of the central cell, suggesting their importance in cell division. Treatments with various redox-altering compounds, including hydrogen peroxide, antioxidants, and inhibitors of NADPH oxidase and calcium signaling, significantly impacted spore development, carposporophyte formation, and the development of tetrasporangial branches. Our results demonstrated that short-term redox perturbations during critical developmental stages can have far-reaching consequences on the morphogenesis of B. moritziana, affecting both immediate growth patterns and long-term developmental trajectories.
期刊介绍:
The Journal of Phycology was founded in 1965 by the Phycological Society of America. All aspects of basic and applied research on algae are included to provide a common medium for the ecologist, physiologist, cell biologist, molecular biologist, morphologist, oceanographer, taxonomist, geneticist, and biochemist. The Journal also welcomes research that emphasizes algal interactions with other organisms and the roles of algae as components of natural ecosystems.
All aspects of basic and applied research on algae are included to provide a common medium for the ecologist, physiologist, cell biologist, molecular biologist, morphologist, oceanographer, acquaculturist, systematist, geneticist, and biochemist. The Journal also welcomes research that emphasizes algal interactions with other organisms and the roles of algae as components of natural ecosystems.