...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Antonie van Leeuwenhoek: Journal of Microbiology and serology >Shifts in diversity and community structure of endophytic bacteria and archaea across root, stem and leaf tissues in the common reed, Phragmites australis, along a salinity gradient in a marine tidal wetland of northern China
【24h】

Shifts in diversity and community structure of endophytic bacteria and archaea across root, stem and leaf tissues in the common reed, Phragmites australis, along a salinity gradient in a marine tidal wetland of northern China

机译：北方芦苇湿地盐分梯度下芦苇芦苇根，茎和叶组织中内生细菌和古细菌的多样性和群落结构的变化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effects of salt stress on endophytic prokaryotic communities in plants are largely unknown, and the distribution patterns of bacterial and archaeal endophytes in different tissues of a plant species are rarely compared. We investigated the endophytic bacterial and archaeal communities in roots, stems and leaves of the common reed, Phragmites australis, collected from three tidal zones along a salinity gradient, using terminal restriction fragment (T-RF) length polymorphism analysis of the 16S rRNA genes. The results showed that the bacterial diversity in the roots was significantly higher than that in the leaves, whereas similar archaeal diversity was revealed for either plant tissues or tidal zones. Network analysis revealed that T-RFs were grouped largely by tissue, and the major groups were generally linked by a few common T-RFs. Unique T-RFs in roots were mainly present in plants growing in the supratidal zone, but unique T-RFs in stems and leaves were mainly present in those from the middle and high tidal zones. Non-metric multidimensional scaling ordination and analysis of similarity revealed that bacterial communities were significantly different among tissues (P < 0.05), but similar among tidal zones (P = 0.49). However, the archaeal communities differed among tidal zones (P < 0.05), but were similar among tissues (P = 0.89). This study indicates that: (1) the endophytic archaeal communities are influenced more significantly than the endophytic bacterial communities by soil salinity, and (2) the differential distribution patterns of bacterial and archaeal endophytes in plant tissues along a salinity gradient imply that these two groups play different roles in coastal hydrophytes.
机译：尚不清楚盐胁迫对植物内生原核生物群落的影响，很少比较植物物种不同组织中细菌和古细菌内生菌的分布方式。我们使用16S rRNA基因的末端限制性片段（T-RF）长度多态性分析，研究了沿盐度梯度从三个潮带收集的普通芦苇芦苇的根，茎和叶中的内生细菌和古细菌群落。结果表明，根部的细菌多样性显着高于叶中的细菌多样性，而植物组织或潮汐带则显示出相似的古细菌多样性。网络分析表明，T-RFs主要按组​​织进行分组，主要组通常由一些常见的T-RFs连接。根上的独特T-RFs主要存在于上翅带生长的植物中，而茎和叶中的独特T-RFs主要存在于中高潮带的植物中。非度量多维标度排序和相似性分析表明，组织之间的细菌群落显着不同（P <0.05），但在潮汐带之间相似（P = 0.49）。然而，古细菌群落在潮间带不同（P <0.05），但在组织间相似（P = 0.89）。这项研究表明：（1）土壤盐度对内生细菌古菌群落的影响比内生细菌群落大;（2）细菌和古细菌内生菌在植物组织中沿盐度梯度的差异分布模式暗示着这两个群体在沿海水生植物中扮演不同的角色。

著录项

相似文献

  • 外文文献
  • 中文文献
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