摘要
以枣(赞皇大枣、骏枣、苹果枣和梨枣)和酸枣为试材,对小孢子不同发育时期的花器形态与解剖特性进行研究。结果表明,小孢子单核晚期花蕾为黄绿色,花药为淡黄色,赞皇大枣花蕾横径为2.7mm左右,纵径为1.6mm左右;骏枣、苹果枣和梨枣花蕾横径范围为2.0mm左右,纵径范围为1.1～1.8mm;酸枣花蕾横径为1.9mm左右,纵径为1.0mm左右。在单倍体育种中,可依据花器官形态判别小孢子的发育时期,从而判别花药培养或小孢子培养的最佳取材时间。
Microspore developmental stage and morphology of flower organ were studied by both of anatomical characteristics and morphological methods in Chinese jujube（＇Zanhuangdazao＇,＇Junzao＇,＇Pingguozao＇,＇Lizao＇）and wild jujube.The results showed that buds color of microspore late-uninucleate were yellow-green and the color of anthers were light yellow.While flower bud diameter of＇Zanhuangdazao＇ was about 2.7 mm and the height was about 1.6mm.Flower bud diameters of＇Junzao＇,＇Pingguozao＇and＇Lizao＇were about 2.0mm and their height were between 1.1mm and 1.8mm.Flower bud diameter of wild Jujube was about 1.9mm,and the height was about 1.0mm.We can judge the development stages of microspore by morphological characteristics of flower organs so as to define the standard of bud selection in correspondence with the optimal stage of anther culture or microspore culture.
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2011年第1期158-162,共5页
Journal of Plant Genetic Resources
基金
国家自然科学基金资助项目(30270927)
河北省自然科学基金项目(C2004000363
C2007000448)
关键词
枣
酸枣
小孢子
发育时期
花器形态
解剖特性
Chinese jujube
Wild jujube
Microspore
Development stage
Morphology of flower organs
Anatomical characteristics
