Edible and medicinal lily roll dan - the key molecular mechanism of the formation of Yixing lily bead buds.

Recently, the Institute of Vegetables and Flowers of the Chinese Academy of Agricultural Sciences revealed the key molecular mechanism of the formation of important edible and medicinal lily roll dan-Yixing lily bead buds.
research published online in frontiers in plant science, an internationally renowned journal.
buds refer to the storage of nutrients, fat buds, many long in the leaves of plants or stems, is a plant special and important reproductive and transmission organs.
roll dan is the only natural triplet species of lily genus, not strong, therefore, can not be reproduced by seeds, but its stems, upper leaves can produce purple and black bead buds, the formation and development of bead buds in its population expansion plays a very important role, making the colony of lily population become one of the most widely distributed species.
, it is of great theoretical significance and great practical application value to artificially regulate the formation and use of bead buds to improve lily reproduction coefficient and efficiency.
present, the study of the formation of bead buds is only seen in anatomical observation and the separation of a few genes, and the metabolic path, specific regulatory patterns and molecular mechanisms associated with the formation of bead buds are still unclear.
the study systematically studied the mechanism of the formation of bead buds in the stems and upper leaves using a combination of anatomy, transcriptional histology, physiology and molecular biology.
coliander buds are formed in the leaf stalfers where the above-ground stems are connected to the leaves and are differentiated by thin-walled cells in the lower epiderminent layer of the near-axis end of the base of the leaf shank.
According to anatomical observation, the transcription group sequencing and expression spectrum analysis were carried out on the formation of different stages of leafy tissue and leafy tissue in the lower part that do not form bead buds, and it was found that starch and sugar metabolism and phyto hormone signaling paths played an important role in the formation of bead buds.
and accumulation of starch can promote the start-up of colostam buds.
addition, hormones exhibit different regulatory patterns in the formation of bead buds.
growth hormone promotes the start-up of bead buds, but inhibits the further formation of bead buds, and the high synthesis and low degradation of cytosynthesis lead to the formation of the upper leaf bead buds.
conclusions have been further verified by experiments in physiology and molecular biology.
research was funded by the National Natural Science Foundation of China, the National Science and Technology Support Project and the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences.
, Ph.D. student in the Lily Group of The Vegetable Institute, is the first author of the paper, and Mingjun Researcher is the communication author.
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