...
首页> 外文期刊>Cell biology international. >Influence of metabolic stress on the inheritance of cell determination in the moss, Pottia intermedia.
【24h】

Influence of metabolic stress on the inheritance of cell determination in the moss, Pottia intermedia.

机译:代谢压力对中型Pottia苔藓中细胞决定遗传的影响。

获取原文
获取原文并翻译 | 示例
           

摘要

Epigenetically-determined apogamy in aposporous regenerants of the moss Pottia intermedia persists during vegetative propagation, the capacity of apogamy being inherited by individual aposporous protonemal cells. To test Bauer-Lazarenko's proposal that stable apogamy in mosses may be due to some self-replicating cytoplasmic factor, the effects of different metabolic stress treatments on the expression of apogamy have been tested. Chronic metabolic stress caused by long-term growth of autotrophic aposporous protonema on mineral medium with 0.25% of casamino acids and on Murashiga-Skoog (MS) medium with sucrose and phytohormones, as well as by transitory action of high kinetin concentration, have a much stronger influence on the expression of apogamy, than short-term stress treatments with RNase and Pb(2+). Apogamy has been found to be lost stably, after prolonged growth on MS medium containing kinetin and ABA. The proposal that the capacity for apogamy is related to the release of aposporous protonemal cells from a putative factor for apogamy is discussed.
机译:在无性繁殖中,苔藓的无孔再生体中由表观遗传确定的单性生殖持续存在,无性生殖的能力由单个无孔的原生质细胞遗传。为了测试Bauer-Lazarenko的建议,即苔藓中稳定的单性配子可能是由于某些自我复制的细胞质因子引起的,已经测试了不同代谢应激处理对单性配子表达的影响。在含有0.25%酪蛋白氨基酸的矿物质培养基上以及在含蔗糖和植物激素的Murashiga-Skoog(MS)培养基上长期生长自养亚种的前质子体,以及由高激动素浓度引起的长期代谢应激,具有很大的作用。比短期用RNase和Pb(2+)应激治疗对无配子症表达的影响更大。在含有激动素和ABA的MS培养基上长时间生长后,已发现单性配子失稳。讨论了无融合生殖的能力与从无融合生殖的推定因子中释放无孔质子细胞有关的提议。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号