›› 2018, Vol. 30 ›› Issue (8): 1281-1287.DOI: 10.3969/j.issn.1004-1524.2018.08.02

• Crop Science • Previous Articles     Next Articles

Analysis of physiological and biochemical characteristics of maize male sterile mutant K305ms

WANG Yan1,2, SHI Haichun1,3, YU Xuejie1,3, ZHAO Changyun3, KE Yongpei1,3,*   

  1. 1. College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China;
    2. Research Center of Buckwheat Industry Technology, Institute of Plant Genetics and Breeding, Guizhou Normal University, Guiyang 550001, China;
    3. Sichuan Nongda Zhenghong Bio. Co., Ltd, Chengdu 610213, China
  • Received:2017-10-11 Online:2018-08-25 Published:2018-08-28

Abstract: In order to understand physiological and biochemical characteristics of the maize genic male sterile mutant K305ms induced by60Co-γ irradiation, male sterile mutant K305ms and fertile plant K305F from their sister-crossed line were used as materials. The content change of soluble protein, free proline, and the activity of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) during the anther development stage were detected. The main results were showed as follows: The soluble protein content and free proline content in anther and glume of K305ms mutant were lower than fertile plant K305F during anther development stage; Moreover, the activities of SOD and CAT in anther of K305ms mutant were significant lower than those in K305F, whereas the POD activity was significant higher. The results indicated that genic male sterility of maize was related to abnormal metabolism of soluble protein and the disordered reactive oxygen scavenging enzyme system (ROS) during the development of anther.

Key words: maize, genic male sterility, K305ms mutant, physiological and biochemical characteristics

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