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The what, when & how of seedling gro...

Lilley, Jodi Lorraine Stewart.

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The what, when & how of seedling growth regulation.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The what, when & how of seedling growth regulation./
Author:	Lilley, Jodi Lorraine Stewart.
Description:	110 p.
Notes:	Source: Dissertation Abstracts International, Volume: 74-09(E), Section: B.
Contained By:	Dissertation Abstracts International74-09B(E).
Subject:	Biology, Botany. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3563072
ISBN:	9781303111143

The what, when & how of seedling growth regulation.
Lilley, Jodi Lorraine Stewart.

The what, when & how of seedling growth regulation. - 110 p.

Source: Dissertation Abstracts International, Volume: 74-09(E), Section: B.

Thesis (Ph.D.)--University of Washington, 2013.

Photomorphogenesis has two stages. First, seedlings detect light and open their embryonic leaves (cotyledons). Second, seedlings optimize their light environment by regulated elongation of the embryonic stem (hypocotyl). Several hormones, including auxin, brassinosteroids (BR) and gibberellins (GA), orchestrate the growth of the seedlings stem. The work presented in this dissertation used time-lapse imaging coupled with molecular biology to investigate the dynamics of these hormones across photomorphogenesis. These studies revealed distinct growth dynamics during each stage, in addition to changes in growth hormone sensitivity across these stages. For example, the interaction between the brassinosteroid and gibberellin pathways is quite different in early versus late promotion of seedling growth. In late stages of seedling development, the hormone auxin and the PHYTOCHROME INTERACTING FACTOR (PIF) family of transcription factors mediate an endogenous carbon-sensing mechanism regulating 'light-foraging' hypocotyl growth. Dynamic analysis of growth, protein abundance and gene expression support a 'regulatory relay' model of the seedling growth network where the importance of each hub changes over time.

ISBN: 9781303111143Subjects--Topical Terms:

1017825
Biology, Botany.

The what, when & how of seedling growth regulation.
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100 1 $a Lilley, Jodi Lorraine Stewart. $3 2093099
245 1 4 $a The what, when & how of seedling growth regulation.
300 $a 110 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-09(E), Section: B.
500 $a Adviser: Jennifer Nemhauser.
502 $a Thesis (Ph.D.)--University of Washington, 2013.
520 $a Photomorphogenesis has two stages. First, seedlings detect light and open their embryonic leaves (cotyledons). Second, seedlings optimize their light environment by regulated elongation of the embryonic stem (hypocotyl). Several hormones, including auxin, brassinosteroids (BR) and gibberellins (GA), orchestrate the growth of the seedlings stem. The work presented in this dissertation used time-lapse imaging coupled with molecular biology to investigate the dynamics of these hormones across photomorphogenesis. These studies revealed distinct growth dynamics during each stage, in addition to changes in growth hormone sensitivity across these stages. For example, the interaction between the brassinosteroid and gibberellin pathways is quite different in early versus late promotion of seedling growth. In late stages of seedling development, the hormone auxin and the PHYTOCHROME INTERACTING FACTOR (PIF) family of transcription factors mediate an endogenous carbon-sensing mechanism regulating 'light-foraging' hypocotyl growth. Dynamic analysis of growth, protein abundance and gene expression support a 'regulatory relay' model of the seedling growth network where the importance of each hub changes over time.
590 $a School code: 0250.
650 4 $a Biology, Botany. $3 1017825
650 4 $a Biology, Molecular. $3 1017719
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690 $a 0307
710 2 $a University of Washington. $b Biology. $3 2093100
773 0 $t Dissertation Abstracts International $g 74-09B(E).
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856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3563072