Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3389/fmicb.2015.00304 |
Bacterial community of cushion plant Thylacospermum ceaspitosum on elevational gradient in the Himalayan cold desert | |
Rehakova, Klara1,2; Chronakova, Alica3; Kristufek, Vaclav3; Kuchtova, Barbora3; Capkova, Katerina1,4; Scharfen, Josef5,6,7; Capek, Petr4; Dolezal, Jiri1,4 | |
通讯作者 | Rehakova, Klara |
来源期刊 | FRONTIERS IN MICROBIOLOGY
![]() |
ISSN | 1664-302X |
出版年 | 2015 |
卷号 | 6 |
英文摘要 | Although bacterial assemblages are important components of soils in arid ecosystems, the knowledge about composition, life-strategies, and environmental drivers is still fragmentary, especially in remote high-elevation mountains. We compared the quality and quantity of heterotrophic bacterial assemblages between the rhizosphere of the dominant cushion-forming plant Thylacospermum ceaspitosum and its surrounding bulk soil in two mountain ranges (East Karakoram: 4850-5250 m and Little Tibet: 5350-5850 m), in communities from cold steppes to the subnival zone in Ladakh, arid Trans-Himalaya, northwest India. Bacterial communities were characterized by molecular fingerprinting in combination with culture-dependent methods. The effects of environmental factors (elevation, mountain range, and soil physico-chemical parameters) on the bacterial community composition and structure were tested by multivariate redundancy analysis and conditional inference trees. Actinobacteria dominate the cultivable part of community and represent a major bacterial lineage of cold desert soils. The most abundant genera were Streptomyces, Arthrobacter, and Paenibacillus, representing both r- and K-strategists. The soil texture is the most important factor for the community structure and the total bacteria counts. Less abundant and diverse assemblages are found in East Karakoram with coarser soils derived from leucogranite bedrock, while more diverse assemblages in Little Tibet are associated with finer soils derived from easily weathering gneisses. Cushion rhizosphere is in general less diverse than bulk soil, and contains more r-strategists. K-strategists are more associated with the extremes of the gradient, with drought at lowest elevations (4850-5000 m) and frost at the highest elevations (5750-5850 m). The present study illuminates the composition of soil bacterial assemblages in relation to the cushion plant T ceaspitosum in a xeric environment and brings important information about heterotrophic bacteria in Himalayan soil. |
英文关键词 | heterotrophic microbial community subnival soil life strategy Ladakh mountains Himalayas |
类型 | Article |
语种 | 英语 |
国家 | Czech Republic |
收录类别 | SCI-E |
WOS记录号 | WOS:000353842400001 |
WOS关键词 | POLYMERASE-CHAIN-REACTION ; IN-SITU DETECTION ; MICROBIAL COMMUNITY ; FUNDAMENTALLY DIFFERENT ; CULTURABLE BACTERIA ; GLACIER FOREFIELD ; GROWTH STRATEGY ; SOIL-PH ; DIVERSITY ; SUCCESSION |
WOS类目 | Microbiology |
WOS研究方向 | Microbiology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/187370 |
作者单位 | 1.Acad Sci Czech Republic, Inst Bot, Dept Phycol Ecol, Vvi, CS-37982 Trebon, Czech Republic; 2.Acad Sci Czech Republic, Ctr Biol, Inst Hydrobiol, Vvi,Dept Microbial Water Ecol, Ceske Budejovice, Czech Republic; 3.Acad Sci Czech Republic, Ctr Biol, Inst Soil Biol, Vvi,Dept Soil Microbiol & Soil Chem, Ceske Budejovice, Czech Republic; 4.Univ South Bohemia, Fac Sci, Dept Bot, Ceske Budejovice, Czech Republic; 5.Charles Univ Prague, Fac Hosp, Hradec Kralove, Czech Republic; 6.Charles Univ Prague, Fac Med, Inst Clin Microbiol, Hradec Kralove, Czech Republic; 7.Reg Hosp Trutnov Inc, Dept Med Microbiol & Immunol, Natl Reference Lab Pathogen Actinomycetes, Trutnov, Czech Republic |
推荐引用方式 GB/T 7714 | Rehakova, Klara,Chronakova, Alica,Kristufek, Vaclav,et al. Bacterial community of cushion plant Thylacospermum ceaspitosum on elevational gradient in the Himalayan cold desert[J],2015,6. |
APA | Rehakova, Klara.,Chronakova, Alica.,Kristufek, Vaclav.,Kuchtova, Barbora.,Capkova, Katerina.,...&Dolezal, Jiri.(2015).Bacterial community of cushion plant Thylacospermum ceaspitosum on elevational gradient in the Himalayan cold desert.FRONTIERS IN MICROBIOLOGY,6. |
MLA | Rehakova, Klara,et al."Bacterial community of cushion plant Thylacospermum ceaspitosum on elevational gradient in the Himalayan cold desert".FRONTIERS IN MICROBIOLOGY 6(2015). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。