您当前所在位置: 首页 > 学者

周伟军

  • 59浏览

  • 0点赞

  • 0收藏

  • 0分享

  • 85下载

  • 0评论

  • 引用

期刊论文

Medium, Explant and Genotype Factors Influencing Shoot Regeneration in Oilseed Brassica spp.

周伟军G. X. Tang W. J. Zhou H. Z. Li B. Z. Mao Z. H. He and K. Yoneyama

J. Agronomy & Crop Science 189, 1-8 (2003),-0001,():

URL:

摘要/描述

The effects of culture media, explants and genotypes on shoot regeneration in oilseed Brassica species were examined in this study. The maximum shoot regeneration 3frequency was obtained in Murashige and Skoog medium supplemented with 3 mg l)1 6-benzylaminopurine and 0.15 mg l)1 1-naphthaleneacetic acid. The addition of 2.5mg l)1 AgNO3 was very beneficial to shoot regeneration in B. napus and Ag2S2O3 (10mg l)1) was even superior to AgNO3 (2.5 mg l)1). Explant age, explant type and carbon source also significantly affected shoot regeneration. Four-day-old seedlings of cotyledonary explants showed the maximum shoot regeneration frequency and number of shoots per explant. Of the four explants-peduncles, hypocotyls, cotyledons and leaf petioles-cotyledons produced the highest shoot regeneration frequency (56.67%). Four carbon sources-glucose, maltose, starch and sucrose-were compared for their respective effects on shoot regeneration from cotyledonary explants. Sucrose appeared to be the best carbon source for shoot regeneration with the highest shoot regeneration frequency (76.00%). Considerable variation in shoot regeneration from cotyledonary explants was observed both between and within Brassica species. The shoot regeneration frequency ranged from 10.00% for cv. R5 (B. rapa) to 83.61% for cv. N1 (B. napus). Two B. napus, one B. carinata and one B. juncea cultivars exhibited shoot regeneration frequency higher than 70 %. In terms of the number of shoots produced per explant, B. rapa showed the highest variation, ranging from 5.64 for cv. R3 to 1.33 for cv. R5. Normal plantlets were regenerated from all induced shoots and developed normally. The 4regenerated plants were fertile and identical with the source plants.

【免责声明】以下全部内容由[周伟军]上传于[2005年01月19日 19时23分46秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

我要评论

全部评论 0

本学者其他成果

    同领域成果