Welcome to Bulletin of Botanical Research! Today is Share:

Bulletin of Botanical Research ›› 2007, Vol. 27 ›› Issue (1): 34-37.doi: 10.7525/j.issn.1673-5102.2007.01.007

Previous Articles     Next Articles

The Fertilization and Proembryo Choose of Pinus sylvestris var. mongolica

TIAN Cheng-Yu;LI Chun-Ying;ZHAO Chun-Jian;ZU Yuan-Gang*   

  1. (1.Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040) (2.Tobacco Regie of Hei Longjiang Province, Harbin 150001)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-01-20 Published:2007-01-20
  • Contact: ZU Yuan-Gang
  • Supported by:

Abstract: The fertilization was processed by sperm in mature male gametophyte combining with egg cell on the top of archegonia on June 15 or so. Then fertilized egg made division of free nuclei and cell wall was began to form while 8 daughter nucleus forming. When they were divided again, proembryo containing 16 cells was formed. In succession, cell layer of suspensor rapidly grew, elongated and down proembryo was carried away cell wall of archegonial base, then get into corrosion cavity in endosperm. Proembryo absorbed nutrition in corrosion cavity and grew, developed. In the first stage, the number of embryoes were very much, but only one developed to mature as usual.

Key words: Pinus sylvestris var. mongolica, fertilization, embryo, endosperm, development

CLC Number: