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Responses to winter dormancy, temperature, and plant hormones share gene networks

IR@CSIR-IHBT

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Title Responses to winter dormancy, temperature, and plant
hormones share gene networks
 
Creator Paul , A
Kumar, Sanjay
 
Subject Plant sciences
Natural Product Chemistry
 
Description Abstract Gene networks modulated in winter dormancy
(WD) in relation to temperature and hormone responses
were analyzed in tea [Camellia sinensis (L.) O. Kuntze].
Analysis of subtracted cDNA libraries prepared using the
RNA isolated from the apical bud and the associated two
leaves (two and a bud, TAB) of actively growing (AG) and
winter dormant plant showed the downregulation of genes
involved in cell cycle/cell division and upregulation of
stress-inducible genes including those encoding chaperons
during WD. Low temperature (4°C) modulated gene
expression in AG cut-shoots in similar fashion as observed
in TAB during WD. In tissue harvested during WD, growth
temperature (25°C) modulated gene expression in the
similar way as observed during the period of active growth
(PAG). Abscisic acid (ABA) and gibberellic acid (GA3)
modulated expression of selected genes, depending upon if
the tissue was harvested during PAG or WD. Tissue
preparedness was critical for ABA- and GA3-mediated
response, particularly for stress-responsive genes/chaperons.
Data identified the common gene networks for winter
dormancy, temperature, and plant hormone responses
 
Date 2011
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://ihbt.csircentral.net/940/1/30-01-2012_Responses.pdf
Paul , A and Kumar, Sanjay (2011) Responses to winter dormancy, temperature, and plant hormones share gene networks. Functional and Integrative Genomics., 11. pp. 659-664.
 
Relation http://ihbt.csircentral.net/940/