• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Applied and Environmental Microbiology >Soil Bacterial Community Shift Correlated with Change from Forest to Pasture Vegetation in a Tropical Soil
【2h】

Soil Bacterial Community Shift Correlated with Change from Forest to Pasture Vegetation in a Tropical Soil

机译：土壤微生物群落的变化与热带土壤从森林到牧场植被的变化相关

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The change in vegetative cover of a Hawaiian soil from forest to pasture led to significant changes in the composition of the soil bacterial community. DNAs were extracted from both soil habitats and compared for the abundance of guanine-plus-cytosine (G+C) content, by analysis of abundance of phylotypes of small-subunit ribosomal DNA (SSU rDNA) amplified from fractions with 63 and 35% G+C contents, and by phylogenetic analysis of the dominant rDNA clones in the 63% G+C content fraction. All three methods showed differences between the forest and pasture habitats, providing evidence that vegetation had a strong influence on microbial community composition at three levels of taxon resolution. The forest soil DNA had a peak in G+C content of 61%, while the DNA of the pasture soil had a peak in G+C content of 67%. None of the dominant phylotypes found in the forest soil were detected in the pasture soil. For the 63% G+C fraction SSU rDNA sequence analysis of the three most dominant members revealed that their phyla changed from Fibrobacter and Syntrophomonas assemblages in the forest soil to Burkholderia and Rhizobium–Agrobacterium assemblages in the pasture soil.
机译：从森林到牧场，夏威夷土壤的营养覆盖率发生了变化，导致土壤细菌群落组成发生了显着变化。从两个土壤生境中提取DNA，并通过分析从G和63％到35％的片段中扩增的小亚基核糖体DNA（SSU rDNA）的系统型丰度，比较鸟嘌呤加胞嘧啶（G + C）含量的丰度。 + C含量，并通过系统发育分析分析了占63％G + C含量的主要rDNA克隆。这三种方法均显示出森林和牧场栖息地之间的差异，这提供了证据，表明在三个分类单元的分辨率下，植被对微生物群落组成具有很强的影响。森林土壤DNA的G + C含量峰值为61％，而牧场土壤的DNA的G + C含量峰值为67％。在牧场土壤中未检测到森林土壤中发现的主要系统型。对于63％G + C分数的SSU rDNA序列分析，三个最主要成员的菌群从森林土壤中的纤维杆菌和拟单胞菌组合变为牧场土壤中的伯克霍尔德氏菌和根瘤土壤杆菌组合。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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