摘要
为了研究航天搭载对辣椒的诱变效应,以3种卫星搭载当代(SP1)的辣椒种子为材料,对其根尖细胞进行了细胞遗传学分析.结果表明,与未搭载对照相比,航天诱变对辣椒SP1代种子根尖细胞的有丝分裂产生了促进效应,同时使根尖细胞产生了微核以及包括染色体桥、染色体断片、多极分裂等在内的多种类型的染色体变异,说明卫星搭载对辣椒根尖细胞具有诱变效应。
In order to investigate the genetic effect of space flight on pepper,the mutation on the root tip cells was studied in SP1 generation.The results showed that aerospace environment increased the mitotic index,and caused micronucleus and chromosomal aberrations including chromosome bridges,chromosome fragments and multipolar division etc.The rate of chromosome aberration and micronuclei were obviously increased in three treated materials compared with the untreated ones,which indicated that cytological mutations were induced by space flight.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2010年第11期1842-1844,共3页
Journal of Harbin Institute of Technology
基金
黑龙江省自然科学基金重点资助项目(ZD200818-02)
关键词
辣椒
航天诱变
有丝分裂指数
微核
染色体畸变
pepper
space mutation
mitotic index
chromosome aberration
micronuclei
