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

FindBook

Google Book

Amazon

博客來

Nutritional Influences of Mosquito Egg Formation.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Nutritional Influences of Mosquito Egg Formation./
作者:	Harrison, Ruby Elizabeth Regnier.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	202 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-08, Section: B.
Contained By:	Dissertations Abstracts International83-08B.
標題:	Entomology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28717046
ISBN:	9798780623618

Nutritional Influences of Mosquito Egg Formation.
Harrison, Ruby Elizabeth Regnier.

Nutritional Influences of Mosquito Egg Formation. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 202 p.

Source: Dissertations Abstracts International, Volume: 83-08, Section: B.

Thesis (Ph.D.)--University of Georgia, 2021.

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

Mosquitoes are vectors of protozoan, viral, and filarial pathogens causing considerable human morbidity and mortality worldwide. Adult females of major vector mosquito species acquire infectious agents when feeding on vertebrate blood, which they must do to obtain nutrients needed to form and lay eggs. A major strategy to reduce incidence of mosquito-borne infections is mosquito population control. Elucidation of physiological factors influencing mosquito egg formation are therefore of primary interest in vector biology both because reproduction dictates population density and because reproduction is intricately linked to mosquito pathogen acquisition and transmission. The studies presented in this dissertation examine three major nutritional influences of mosquito egg formation: blood and blood components from different vertebrate hosts, purified proteins and carbohydrates, and the enteric community of microorganisms that dwell in the mosquito digestive tract (the gut microbiota). Results from this research firstly indicate that the sole component from blood required for mosquito egg formation is protein, and that blood proteins do not promote mosquito oogenesis equivalently with amino acid composition being a major differentiating factor. Secondly, protein ingestion elicits endocrine activation in mosquitoes that regulates progression of a gonotrophic cycle. When protein ingestion is artificially prolonged, the normal chronology and cyclic nature of mosquito egg formation is disrupted, placing mosquitoes in a state of quasi-continual oogenesis. Finally, the gut microbiota of adult mosquitoes acts as a source of essential B vitamins, which are required for normal metabolic function and which therefore strongly influence mosquito egg formation by modulation of multiple related physiological processes. Taken together, conclusions from this research clearly show that female mosquito reproductive physiology is downstream of nutrient input with specific macronutrients and micronutrients serving different important functions affecting egg formation.

ISBN: 9798780623618Subjects--Topical Terms:

615844
Entomology.
Subjects--Index Terms:

Aedes aegypti

Nutritional Influences of Mosquito Egg Formation.
LDR:03289nmm a2200409 4500 001 2346476
005 20230315102221.5
006 m o d
007 cr#unu||||||||
008 241004s2021 ||||||||||||||||| ||eng d
020 $a 9798780623618
035 $a (MiAaPQ)AAI28717046
035 $a AAI28717046
040 $a MiAaPQ $c MiAaPQ
100 1 $a Harrison, Ruby Elizabeth Regnier. $0 (orcid)0000-0003-1207-6734 $3 3685576
245 1 0 $a Nutritional Influences of Mosquito Egg Formation.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 202 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-08, Section: B.
500 $a Advisor: Strand, Michael R.;Brown, Mark R.
502 $a Thesis (Ph.D.)--University of Georgia, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Mosquitoes are vectors of protozoan, viral, and filarial pathogens causing considerable human morbidity and mortality worldwide. Adult females of major vector mosquito species acquire infectious agents when feeding on vertebrate blood, which they must do to obtain nutrients needed to form and lay eggs. A major strategy to reduce incidence of mosquito-borne infections is mosquito population control. Elucidation of physiological factors influencing mosquito egg formation are therefore of primary interest in vector biology both because reproduction dictates population density and because reproduction is intricately linked to mosquito pathogen acquisition and transmission. The studies presented in this dissertation examine three major nutritional influences of mosquito egg formation: blood and blood components from different vertebrate hosts, purified proteins and carbohydrates, and the enteric community of microorganisms that dwell in the mosquito digestive tract (the gut microbiota). Results from this research firstly indicate that the sole component from blood required for mosquito egg formation is protein, and that blood proteins do not promote mosquito oogenesis equivalently with amino acid composition being a major differentiating factor. Secondly, protein ingestion elicits endocrine activation in mosquitoes that regulates progression of a gonotrophic cycle. When protein ingestion is artificially prolonged, the normal chronology and cyclic nature of mosquito egg formation is disrupted, placing mosquitoes in a state of quasi-continual oogenesis. Finally, the gut microbiota of adult mosquitoes acts as a source of essential B vitamins, which are required for normal metabolic function and which therefore strongly influence mosquito egg formation by modulation of multiple related physiological processes. Taken together, conclusions from this research clearly show that female mosquito reproductive physiology is downstream of nutrient input with specific macronutrients and micronutrients serving different important functions affecting egg formation.
590 $a School code: 0077.
650 4 $a Entomology. $3 615844
650 4 $a Endocrinology. $3 610914
650 4 $a Molecular biology. $3 517296
653 $a Aedes aegypti
653 $a Metabolism
653 $a Microbiota
653 $a Mosquito
653 $a Nutrition
653 $a Reproduction
690 $a 0353
690 $a 0409
690 $a 0307
710 2 $a University of Georgia. $b Entomology - PHD. $3 3685577
773 0 $t Dissertations Abstracts International $g 83-08B.
790 $a 0077
791 $a Ph.D.
792 $a 2021
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28717046