東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

The Crossroads of Microbial Diversit...

Naliboff, Douglas Scott.

FindBook

Google Book

Amazon

博客來

The Crossroads of Microbial Diversity and Metabollic Capacity across Coral Reefs of the Pacific Ocean.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The Crossroads of Microbial Diversity and Metabollic Capacity across Coral Reefs of the Pacific Ocean./
作者:	Naliboff, Douglas Scott.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	56 p.
附註:	Source: Masters Abstracts International, Volume: 81-05.
Contained By:	Masters Abstracts International81-05.
標題:	Molecular biology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=22620576
ISBN:	9781088397411

The Crossroads of Microbial Diversity and Metabollic Capacity across Coral Reefs of the Pacific Ocean.
Naliboff, Douglas Scott.

The Crossroads of Microbial Diversity and Metabollic Capacity across Coral Reefs of the Pacific Ocean. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 56 p.

Source: Masters Abstracts International, Volume: 81-05.

Thesis (M.S.)--San Diego State University, 2019.

This item must not be sold to any third party vendors.

Microbial communities inhabiting marine waters are compositionally unique with distinct metabolic profiles. These assemblages are important drivers for biogeochemical cycles and impact ecosystem function. Changes to environmental systems impact the diversity of local microbiota as well as the macroorganisms. Several examples in nature illustrate reduced diversity and trophic connectivity caused by human activities; though it remains unclear how the loss of microbial diversity and associated function impacts ecosystem stability. Here, we examine marine microbial community structure and diversity on coral reefs across 11 inhabited and 16 uninhabited Pacific Islands and Atolls. Metagenomic sequence analysis was used to compare the community composition and metabolism at 81 reef sites. The results demonstrate that microbial community diversity is diminished at inhabited locations primarily by a loss of evenness. The structure of these marine microbial communities was differentiated by rank abundance curve distributions that best fit three theoretical niche models (Lognormal, Niche Preemption, and Power Law). The Lognormal distribution had the highest diversity and both the Niche Preemption and Power Law having medium to low diversity. Community metabolism did not differ between habitation, region, or geology; although 60 metabolic categories significantly differed between niche models. Communities that best fit Niche Preemption model show metabolic enrichment of stress response and efflux pathways. Whereas Power Law model communities have an enrichment of autotrophic metabolism (photosystem machinery, carbon fixation, iron acquisition, and circadian regulation). This study shows that microbial diversity is reduced by anthropogenic pressures on coral reefs, which alters community structures and selects for specific metabolic functions.

ISBN: 9781088397411Subjects--Topical Terms:

517296
Molecular biology.

The Crossroads of Microbial Diversity and Metabollic Capacity across Coral Reefs of the Pacific Ocean.
LDR:02841nmm a2200301 4500 001 2280189
005 20210830065508.5
008 220723s2019 ||||||||||||||||| ||eng d
020 $a 9781088397411
035 $a (MiAaPQ)AAI22620576
035 $a AAI22620576
040 $a MiAaPQ $c MiAaPQ
100 1 $a Naliboff, Douglas Scott. $3 3558695
245 1 4 $a The Crossroads of Microbial Diversity and Metabollic Capacity across Coral Reefs of the Pacific Ocean.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 56 p.
500 $a Source: Masters Abstracts International, Volume: 81-05.
500 $a Advisor: Rohwer, Forest.
502 $a Thesis (M.S.)--San Diego State University, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a Microbial communities inhabiting marine waters are compositionally unique with distinct metabolic profiles. These assemblages are important drivers for biogeochemical cycles and impact ecosystem function. Changes to environmental systems impact the diversity of local microbiota as well as the macroorganisms. Several examples in nature illustrate reduced diversity and trophic connectivity caused by human activities; though it remains unclear how the loss of microbial diversity and associated function impacts ecosystem stability. Here, we examine marine microbial community structure and diversity on coral reefs across 11 inhabited and 16 uninhabited Pacific Islands and Atolls. Metagenomic sequence analysis was used to compare the community composition and metabolism at 81 reef sites. The results demonstrate that microbial community diversity is diminished at inhabited locations primarily by a loss of evenness. The structure of these marine microbial communities was differentiated by rank abundance curve distributions that best fit three theoretical niche models (Lognormal, Niche Preemption, and Power Law). The Lognormal distribution had the highest diversity and both the Niche Preemption and Power Law having medium to low diversity. Community metabolism did not differ between habitation, region, or geology; although 60 metabolic categories significantly differed between niche models. Communities that best fit Niche Preemption model show metabolic enrichment of stress response and efflux pathways. Whereas Power Law model communities have an enrichment of autotrophic metabolism (photosystem machinery, carbon fixation, iron acquisition, and circadian regulation). This study shows that microbial diversity is reduced by anthropogenic pressures on coral reefs, which alters community structures and selects for specific metabolic functions.
590 $a School code: 0220.
650 4 $a Molecular biology. $3 517296
650 4 $a Biological oceanography. $3 2122748
690 $a 0307
690 $a 0416
710 2 $a San Diego State University. $b Biology. $3 3193646
773 0 $t Masters Abstracts International $g 81-05.
790 $a 0220
791 $a M.S.
792 $a 2019
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=22620576