Welcome to Bulletin of Botanical Research! Today is Share:

Bulletin of Botanical Research ›› 2025, Vol. 45 ›› Issue (1): 119-129.doi: 10.7525/j.issn.1673-5102.2025.01.013

• Original Paper • Previous Articles    

Characteristics of Volatile Components in Different Phenological Stages and Pollen Morphology and Developmental Process of Artemisia argyi

Changjie CHEN1, Yuyang MA1, Yan FANG1, Dahui LIU1,2()   

  1. 1.College of Pharmacy,Hubei University of Chinese Medicine,Wuhan 430065
    2.Hubei Shizhen Laboratory,Wuhan 430065
  • Received:2024-07-19 Online:2025-01-20 Published:2025-01-23
  • Contact: Dahui LIU E-mail:liudahui@hbucm.edu.cn

Abstract:

The morphology of Artemisia argyi flowers at various developmental stages was observed, and the contents of volatile components were determined using GC-MS. The pollen structure was examined using optical and scanning electron microscopes, and the pollen development process was observed under a transmission electron microscope, respectively. The results showed that A. argyi had oval head inflorescence with purple or yellow corolla at blooming, the relative content of most medicinal volatile components such as eucalyptol, camphor and borneol decreased with blooming, while the content of thujone gradually increased. The pollen of A. argyi had the structure of three germination pores and three channels, and the surface was adorned with a thorny, granular compound ornament, and the thorns were blunt and interspersed with granular protrusions, spherical and oblong in shape, exhibiting pollen dimorphism. By observing the characteristics of pollen mother cell stage, mononuclear microspore stage, binucleate pollen stage, pollen maturation stage and the environmental change process in the pollen sac, it was found that there were a large number of abnormal pollen grainsin the A. argyi anthers. The characteristics of A. argyi flowers and pollens were systematically investigated, which would provide a reference for morphological, palynological, and reproductive research on A. argyi.

Key words: Artemisia argyi flower, volatile components, sporopollen, floral traits, floral development

CLC Number: