干旱区生态环境知识资源中心(Arid): BACTERIAL DIVERSITY IN VADOSE CAVE POOLS: EVIDENCE FOR ISOLATED ECOSYSTEMS

Arid

DOI	10.4311/2020MB0120
	BACTERIAL DIVERSITY IN VADOSE CAVE POOLS: EVIDENCE FOR ISOLATED ECOSYSTEMS
	Read, Kaitlin J. H.; Melim, Leslie A.; Winter, Ara S.; Northup, Diana E.
通讯作者	Northup, DE (corresponding author)，Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA.
来源期刊	JOURNAL OF CAVE AND KARST STUDIES
ISSN	1090-6924
EISSN	2331-3714
出版年	2021
卷号	83 期号:4
英文摘要	Microbial diversity of cave pools, especially vadose pools, has received relatively little attention. To help fill this gap, this study reports on the bacterial diversity of 17 pools in three New Mexican arid land caves: Carlsbad Cavern, Lechuguilla Cave, and Hell Below Cave. These pools are spread throughout the caves and, with two exceptions, are not connected. The pools share a basic water chemistry, with fresh water of the calcium-magnesium-bicarbonate type. These 17 pools have Chao1 values between 40 and 1738; the Shannon diversity averages 4.6 +/- 1.1, ranging from 2.6 to 6.4; and the Simpson averages 0.881 +/- 0.099, ranging from 0.622 to 0.981. No two pools had the same communities, even at the phylum level. Nitrospirae, Alphaproteobacteria, Betaproteobacteria and Gammaproteobacteria were found >5% abundance in nine or more cave pools. Actinobacteria, Chloroflexi, Fibrobacteres, Firmicutes and Plantomycetes were at >5 % in four to six pools. Of the top ten widespread bacterial genera, Nitrospira was found in all pools, with >5 % in eleven pools. Other common genera include Polyclorovans, Propionibacterium, Polaromonas, Haliangium, Bacillus, Subgroup 6 uncultured Acidobacteria, Candidatus Omnitrophica, and uncultured Nitrosomonadaceae. Presence of several potential nitrogen cycling bacteria (e.g., Nitrospira) in the study pools suggests that nitrogen cycling may be an important bacterial role. There is some evidence of human contamination, particularly in the heavily visited Big Room, Carlsbad Cavern, but it is not the dominant control. Rather than a single stable cave pool community, adapted to the cave pool ecosystem, the data show 17 different communities, despite relatively similar conditions. The data support the hypothesis that each pool is a unique, isolated ecosystem, with differences likely caused more by the isolation of each pool than by variable chemistry. Thus, the common habit of grouping samples, while useful for some questions, may not capture the diversity present in cave ecosystems.
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000736969700003
WOS关键词	DISSOLVED ORGANIC-MATTER ; CARLSBAD-CAVERN ; NEW-MEXICO ; MICROBIAL DIVERSITY ; KARTCHNER CAVERNS ; SP-NOV ; FERROMANGANESE DEPOSITS ; COMMUNITY STRUCTURE ; GEN. NOV. ; ACIDOBACTERIAL COMMUNITIES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375782
作者单位	[Read, Kaitlin J. H.; Northup, Diana E.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA; [Melim, Leslie A.] Western Illinois Univ, Dept Earth, Atm & GIS, Macomb, IL 61455 USA; [Winter, Ara S.] Univ New Mexico, Bosque Ecosyst Monitoring Program, Albuquerque, NM 87131 USA; [Northup, Diana E.] Univ New Mexico, Coll Engn, Nanosci & Microsyst Engn, Albuquerque, NM USA
推荐引用方式 GB/T 7714	Read, Kaitlin J. H.,Melim, Leslie A.,Winter, Ara S.,et al. BACTERIAL DIVERSITY IN VADOSE CAVE POOLS: EVIDENCE FOR ISOLATED ECOSYSTEMS[J],2021,83(4).
APA	Read, Kaitlin J. H.,Melim, Leslie A.,Winter, Ara S.,&Northup, Diana E..(2021).BACTERIAL DIVERSITY IN VADOSE CAVE POOLS: EVIDENCE FOR ISOLATED ECOSYSTEMS.JOURNAL OF CAVE AND KARST STUDIES,83(4).
MLA	Read, Kaitlin J. H.,et al."BACTERIAL DIVERSITY IN VADOSE CAVE POOLS: EVIDENCE FOR ISOLATED ECOSYSTEMS".JOURNAL OF CAVE AND KARST STUDIES 83.4(2021).