渔业研究2024，Vol.46Issue(2)：147-155,9.DOI:10.14012/j.cnki.fjsc.2024.02.005
环境因子对"东方7号"海带配子体发育的影响
Effects of environmental factors on the development of Saccharina japonica'Dongfang No.7'gametophyte
摘要
Abstract
The male and female gametophytes of Saccharina japonica'Dongfang No.7'were cultured at dif-ferent temperatures,photoperiods and nitrogen concentrations to observe the development of gametophytes and explore the optimum environmental conditions for the formation of gametophyte oogonium,ovulation and young sporophyte.The results showed that temperature,photoperiod and nitrogen concentration had significant effects on the development of gametophyte.The rate of gametophyte development at 12℃and 15℃(60%-70%)was significantly higher than that at other temperature groups.At 20℃,the gametophyte was in the vegetative growth stage without development.The rate of gametophyte development(80%)in 10L∶14D group was signif-icantly higher than that in other photoperiod groups,followed by that in 6L∶18D group,but the length of young sporophyte in this condition was significantly lower than that in other photoperiod groups.When the con-centration of N was2 mg/L and4 mg/L,the final development rate was more than75%,and the sporophyte accounted for about 70%,which was significantly higher than other groups.This study provides theoretical ba-sis and data support for artificial breeding of gametophyte of S.japonica'Dongfang No.7'.关键词
海带/配子体/发育/温度/光照周期/氮浓度Key words
Saccharina japonica/gametophyte/development/temperature/photoperiod/nitrogen concentra-tion分类
农业科技引用本文复制引用
李霞,陈书秀,王伟伟,孙娟,李晓捷..环境因子对"东方7号"海带配子体发育的影响[J].渔业研究,2024,46(2):147-155,9.基金项目
国家藻类产业技术体系(CARS-50) （CARS-50）
山东省重点研发计划重大科技创新工程项目(2022LZGC004) （2022LZGC004）
山东省农业良种工程项目(2021LZGC004) （2021LZGC004）
山东省渔业软科学研究课题(202219) （202219）
国家重点研发计划"蓝色粮仓科技创新"重点专项(2018YFD0901500) （2018YFD0901500）
