|本期目录/Table of Contents|

[1]张艺欣,邓雨晴,张清招,等.江西铅山红芽芋超低温疗法脱毒苗的离体保存[J].江苏农业科学,2021,49(21):58-66.
 Zhang Yixin,et al.Study on in vitro conservation of virus-free plantlets of Jiangxi Qianshan red bud taro by ultra-low temperature therapy[J].Jiangsu Agricultural Sciences,2021,49(21):58-66.
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第49卷
期数:
2021年第21期
页码:
58-66
栏目:
生物技术
出版日期:
2021-11-05

文章信息/Info

Title:
Study on in vitro conservation of virus-free plantlets of Jiangxi Qianshan red bud taro by ultra-low temperature therapy
作者:
张艺欣1234 邓雨晴1 张清招1 曾会英1 聂学文1 龚寅1 陈丽丽1 侯莹1 尹明华1234
1.上饶师范学院生命科学学院,江西上饶 334001; 2.江西省上饶市药食同源植物资源保护与利用重点实验室,江西上饶 334001;3.江西省上饶市薯芋类作物种质保存与利用重点实验室,江西上饶 334001; 4.上饶农业技术创新研究院,江西上饶 334001
Author(s):
Zhang Yixinet al
关键词:
江西铅山红芽芋脱毒苗超低温疗法离体保存
Keywords:
-
分类号:
S632.304+.3
DOI:
-
文献标志码:
A
摘要:
以江西铅山红芽芋超低温疗法脱毒苗为试验材料,从温度、培养基养分水平、培养基物理状态、渗透压调节剂、生长抑制剂、活性炭等方面对铅山红芽芋超低温疗法脱毒苗进行离体保存,从DNA分子标记、气孔参数、光合参数和叶绿素荧光参数等方面衡量江西铅山红芽芋超低温疗法脱毒苗离体保存后的遗传稳定性,并对江西铅山红芽芋超低温疗法脱毒苗离体保存后相关基因表达水平进行qRT-PCR检测。结果表明,5 ℃低温、1 mg/L多效唑(PP333)、18 g/L 蔗糖、0.6 g/L琼脂、1/8 MS、2 g/L 活性炭、20 g/L甘露醇、0.5 mg/L 脱落酸均有利于江西铅山红芽芋超低温疗法脱毒苗的离体保存,并且可以显著提高其离体保存过程中蔗糖合成酶、超氧化物歧化酶[Cu-Zn]、过氧化物酶、多胺氧化酶、衰老相关半胱氨酸蛋白酶、L-抗坏血酸氧化酶等基因的表达水平。与常温继代苗对照组相比,江西铅山红芽芋超低温疗法脱毒苗离体保存后复苏苗经SSR检测,电泳峰型一致,遗传距离为0,遗传相似系数为1,可以聚为一类;铅山红芽芋超低温疗法脱毒苗离体保存后复苏苗和常温继代苗对照组的气孔长径、短径、周长、气孔数量、气孔密度、净光合速率(Pn)、气孔导度(Gs)、细胞间CO2浓度(Ci)、蒸腾速率(Tr)、实际光化学效率ΦPSⅡ、捕获激发能效率Fv′/Fm′、光化学猝灭系数(qP)、非光化学猝灭系数NPQ均无显著差异。由此可见,铅山红芽芋超低温疗法脱毒苗离体保存可以保证其种质遗传稳定性。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2021-07-22
基金项目:国家自然科学基金(编号:31960079、32060092);江西省上饶市科技局平台载体建设项目(编号:2020I001、2019I017);上饶师范学院校级自选课题(编号:202031);2021年大学生国家级创新创业训练计划(编号:202110416008)。
作者简介:张艺欣(1991—),女,江西上饶人,硕士,助教,主要从事植物生物技术研究。E-mail:474303981@qq.com。
通信作者:尹明华,硕士,教授,主要从事植物生物技术研究。E-mail:yinminghua04@163.com。
更新日期/Last Update: 2021-11-05