NDLI: Isolation of developing secondary xylem specific cellulose synthase genes and their expression profiles during hormone signalling in Eucalyptus tereticornis

Content Provider	Springer Nature Link
Author	KARPAGA RAJA SUNDARI, BALACHANDRAN GHOSH DASGUPTA, MODHUMITA
Copyright Year	2014
Abstract	Cellulose synthases (CesA) represent a group of β-1, 4 glycosyl transferases involved in cellulose biosynthesis. Recent reports in higher plants have revealed that two groups of CesA gene families exist, which are associated with either primary or secondary cell wall deposition. The present study aimed at identifying developing secondary xylem specific cellulose synthase genes from Eucalyptus tereticornis,a species predominantly used in paper and pulp industries in the tropics. The differential expression analysis of the three EtCesAgenes using qRT-PCR revealed 49 to 87 fold relative expression in developing secondary xylem tissues. Three full length gene sequences of EtCesA1, EtCesA2and EtCesA3 were isolated with the size of 2940, 3114 and 3123 bp, respectively. Phytohormone regulation of all three EtCesAgenes were studied by exogenous application of gibberellic acid, naphthalene acetic acid, indole acetic acid and 2, 4-epibrassinolide in internode tissues derived from three-month-old rooted cuttings. All threeEtCesA transcripts were upregulated by indole acetic acid and gibberellic acid. This study demonstrates that the increased cellulose deposition in the secondary wood induced by hormones can be attributed to the upregulation of xylem specific CesAs.
Starting Page	403
Ending Page	414
Page Count	12
File Format	PDF
ISSN	00221333
Journal	Journal of Genetics
Volume Number	93
Issue Number	2
e-ISSN	09737731
Language	English
Publisher	Springer India
Publisher Date	2014-09-04
Publisher Institution	Indian Academy of Sciences
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	cellulose gene expression developing xylem phytohormones wood formation Eucalyptus Life Sciences Microbial Genetics and Genomics Plant Genetics & Genomics Animal Genetics and Genomics Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Genetics

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