Publications by authors named "Yeyan Qiu"

Anabaena sp. PCC 7120 (hereafter Anabaena 7120) is a model cyanobacterium for studying pathways such as photosynthesis and nitrogen fixation along with many other metabolic pathways common to plants. In addition, since Anabaena 7120 forms specialized N-fixing cells, called heterocysts, to perform uniquely solar-powered, oxic nitrogen fixation under fixed-nitrogen depleted conditions, this cyanobacterium provides the unique opportunity to study cellular differentiation in bacteria.

View Article and Find Full Text PDF

Mauremys reevesii is an endangered freshwater turtle that symbolizes longevity in Chinese culture. Despite its importance, genetic studies of this species remain limited, with no genomic sequence reported to date. Here, we report a high-quality, chromosome-level genomic sequence of M.

View Article and Find Full Text PDF

Successful seedling establishment depends on the optimum depth of seed placement especially in drought-prone conditions, providing an opportunity to exploit subsoil water and increase winter survival in winter wheat. Coleoptile length is a key determinant for the appropriate depth at which seed can be sown. Thus, understanding the genetic basis of coleoptile length is necessary and important for wheat breeding.

View Article and Find Full Text PDF

In response to environmental changes, Anabaena cylindrica differentiate three cell types: vegetative cells for photosynthesis, heterocysts for nitrogen fixation, and akinetes for stress survival. Cell-surface polysaccharides play important roles in cyanobacterial ecophysiology. In this study, specific cell-surface sugars were discovered in heterocysts, akinetes and vegetative cells of A.

View Article and Find Full Text PDF

Self-assembled nanoparticles were synthesized from water-soluble fructose-chitosan, substituted by succinyl linkages with phytosterols as hydrophobic moieties for self-assembly. The physicochemical properties of the prepared self-assembled nanoparticles were characterized by Fourier transform infrared spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. Doxorubicin (DOX), as a model anticancer drug, was physically entrapped inside prepared self-assembled nanoparticles by the dialysis method.

View Article and Find Full Text PDF