气候变化领域集成服务门户(CCPortal): Diversity and spatial distribution of autotrophic communities within and between ice-covered Antarctic lakes (McMurdo Dry Valleys)

CCPortal

DOI	10.1002/lno.10071
	Diversity and spatial distribution of autotrophic communities within and between ice-covered Antarctic lakes (McMurdo Dry Valleys)
	Dolhi, Jenna M.; Teufel, Amber G.; Kong, Weidong; Morgan-Kiss, Rachael M.
通讯作者	Morgan-Kiss, RM (通讯作者)
发表日期	2015
ISSN	0024-3590
EISSN	1939-5590
起始页码	977
结束页码	991
卷号	60 期号:3
英文摘要	We compared the spatial distribution and diversity of autotrophic microbial communities among four permanently ice-covered, chemically stratified lakes located in the Taylor (Lakes Bonney-east and west lobes, Fryxell), and Wright (Lake Vanda) Valleys of the McMurdo Dry Valleys (Victoria Land, Antarctica). Clone libraries were constructed for major carbon fixation genes (rbcL isoforms IA/B and ID; cbbM; nifJ). Real time quantitative polymerase chain reaction assays were also developed for each of these markers of autotrophy to assess the influence of lake physicochemical factors on spatial trends in major photosynthetic and chemolithoautotrophic groups. Both lobes of Lake Bonney were dominated by Ribulose-1, 5-bisphosphate carboxylase oxygenase (RubisCO) form ID rbcL (haptophytes and stramenopiles), while Lake Fryxell was dominated by rbcL form ID-harboring cryptophytes. Lake Vanda was the least productive lake and was dominated by form IA/B rbcL (cyanobacteria and chlorophytes) and form ID rbcL (stramenopiles). Autotrophic carbon fixation genes from photosynthetic organisms were generally positively correlated with light availability. Chemolithoautotrophic organisms harboring form II RubisCO were detected in only two of the four lakes (west lobe Lake Bonney and Fryxell) and were associated with the presence of either sulfide (Fryxell) or dimethylated sulfur compounds (west lobe Lake Bonney).
关键词	POLAR NIGHT MIXOTROPHIC CRYPTOPHYTES MICROBIAL EUKARYOTES OXIDIZING BACTERIA TEMPORAL DYNAMICS RUBISCO GENOTYPES TAYLOR GLACIER NITROUS-OXIDE BLOOD FALLS FORM-II
语种	英语
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000354490100020
来源期刊	LIMNOLOGY AND OCEANOGRAPHY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258440
推荐引用方式 GB/T 7714	Dolhi, Jenna M.,Teufel, Amber G.,Kong, Weidong,et al. Diversity and spatial distribution of autotrophic communities within and between ice-covered Antarctic lakes (McMurdo Dry Valleys)[J]. 中国科学院青藏高原研究所,2015,60(3).
APA	Dolhi, Jenna M.,Teufel, Amber G.,Kong, Weidong,&Morgan-Kiss, Rachael M..(2015).Diversity and spatial distribution of autotrophic communities within and between ice-covered Antarctic lakes (McMurdo Dry Valleys).LIMNOLOGY AND OCEANOGRAPHY,60(3).
MLA	Dolhi, Jenna M.,et al."Diversity and spatial distribution of autotrophic communities within and between ice-covered Antarctic lakes (McMurdo Dry Valleys)".LIMNOLOGY AND OCEANOGRAPHY 60.3(2015).