NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Biotechnology (IJBT) >
IJBT Vol.04 [2005] >
IJBT Vol.04(4) [October 2005] >

Title: Molecular basis of flower initiation—A review
Authors: Parimalan, R
Giridhar, P
Joel, A John
Jagadeesan, S
Keywords: cDNA
floral development
shoot apical meristem
Issue Date: Oct-2005
Publisher: CSIR
IPC CodeInt.Cl.7 A01G7/00,A01N
Abstract: Plants have many differences, like protandry, protogyny, etc. However, amidst these differences, all angiosperms have a common mechanism of flowering, i.e. concentric pattern of flowering (sepal, petal, stamen and carpel). The mechanism or the genes thorough which plants maintain boundaries between the four, sepal-petal-stamen-carpel, are also given due importance. Once a plant attains competence, flowers may be produced through the reorganization of SAM directly to floral meristem, or through the inflorescence or co-inflorescence meristem, in response of exogenous and endogenous signals. Initiation, determination and differentiation are classed into four stages and this is the region which is studied here in detail. Some organ specificity genes, like MALE STERILITY (MS) and BICAUDAL (BIC), move us towards a better understanding of the mechanism like male sterility and self-incompatibility in plants. Models like ABC, biophysical, MCDK, etc., help in explaining the mechanism of flowering on a molecular basis. However, in general, the path towards flowering is laid when the floral repressor genes are down regulated. Recently identified miRNAs in plants authenticate them and also give out the mechanism by which they down regulate. It has also been found out that MADS-box gene family and CArG-box genes (where those MADS domain protein binds) are highly conserved. Their role in flower development is also touched upon.
Page(s): 455-465
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Source:IJBT Vol.04(4) [October 2005]

Files in This Item:

File Description SizeFormat
IJBT 4(4) 455-465.pdf142.47 kBAdobe PDFView/Open
 Current Page Visits: 958 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 170371 since 01-Sep-2015  Last updated on 30-Jun-2016Webmaster: