2013년 9월 10일 화요일

식물생리학 Stem cell homeostasis in SAM

식물생리학 Stem cell homeostasis in SAM
[식물생리학] Stem cell homeostasis in SAM.pptx


목차
1.Introduction

2.Body: 1-1 WUS/CLV Mechanism
1-2 CLV1/CLV3
1-3 STM
2-1 CZ expansion
2-2 PZ re-specification

3.Conclusion & Prospect




본문
Wus - Maintain SC undifferented
CLV3 – Repress WUS
Ⅰ.
Number of SC
CLV3
CLV3 repress WUS
Ⅱ.
Number of SC
CLV3
WUS


The CLV1 gene encodes a Leu-rich repeat receptor Ser/Thr kinase a member of a large class of proteins found in both plants and animals, many of which are involved in cell signaling.
D. CLV3::GUS 를 이용,CLV3발현 곳을 알 수 있다.

E. Germination 후 10일 뒤 wild-type의 GUS-stained 모습.

F. Wild-type의 10일 후 모습.

G. WUS돌연변이가 삽입된 CLV3::GUS/wus-1 배에서는 CLV3가 발현되지 않았다.

H. CLV3::GUS/wus-1 seedling 10일 후 GUS-stained 모습.

I. wus-1 seedling 10일후.

J. STM의 돌연변이가 삽입된CLV3::GUS/stm-11 배에서는 CLV3가 약간 발현되는 것을 볼 수 있다.

K. CLV3::GUS/stm-11 seedling 10일 후 GUS-stained 모습.

L. stm-11 seedling 10일 후cotyledons는 형성되었지만SAM은 형성되지 않았다.







본문내용
/CLV3
1-3 STM
2-1 CZ expansion
2-2 PZ re-specification
Conclusion & Prospect
Content

Introduction

Why plant grow consistently?
Fig 1. Plant grow cycle

Stem cell

Stem cell homeostasis in SAM

What is signaling pathway?
Fig 2. Plant signaling pathway

1-1 WUS/CLV Mechanism

Wus - Maintain SC undifferented
CLV3Repress WUS
Ⅰ.
Number of SC
CLV3
CLV3 repress WUS
Ⅱ.
Number of SC
CLV3
WUS
Fig

참고문헌
CLV3 Is Localized to the Extracellular Space, Where It Activates the Arabidopsis CLAVATA Stem Cell Signaling Pathway . The Plant Cell, 2002 .

Regulation of CLV3 Expression by Two Homeobox Genes in Arabidopsis1. Plant Physiology, June 2002 .

Wuschel mediates stem cell homeostasis by regulating stem cell number and patterns of cell division and differentiation of stem cell progenitors. Development, 2010 .

Shoot apical meristem maintenance : the art of a dynamic balance. Current of biology, 2003 .
 

댓글 없음:

댓글 쓰기