NDLI: Dormancy in potato tuber meristems: chemically induced cessation in dormancy matches the natural process based on transcript profiles

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Dormancy in potato tuber meristems: chemically induced cessation in dormancy matches the natural process based on transcript profiles

Content Provider	Springer Nature Link
Author	Campbell, Michael Segear, Erika Beers, Lee Knauber, Donna Suttle, Jeffrey
Copyright Year	2008
Abstract	Meristem dormancy in perennial plants is a developmental process that results in repression of metabolism and growth. The cessation of dormancy results in rapid growth and should be associated with the production of nascent transcripts that encode for gene products controlling for cell division and growth. Dormancy cessation was allowed to progress normally or was chemically induced using bromoethane (BE), and microarray analysis was used to demonstrate changes in specific transcripts in response to dormancy cessation before a significant increase in cell division. Comparison of normal dormancy cessation to BE-induced dormancy cessation revealed a commonality in both up and downregulated transcripts. Many transcripts that decrease as dormancy terminates are inducible by abscisic acid particularly in the conserved BURP domain proteins, which include the RD22 class of proteins and in the storage protein patatin. Transcripts that are associated with an increase in expression encoded for proteins in the oxoglutarate-dependent oxygenase family. We conclude that BE-induced cessation of dormancy initiates transcript profiles similar to the natural processes that control dormancy.
Starting Page	317
Ending Page	328
Page Count	12
File Format	PDF
ISSN	1438793X
Journal	Functional & Integrative Genomics
Volume Number	8
Issue Number	4
e-ISSN	14387948
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-03-04
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Potato Tuber Meristem Dormancy Microarray Bromoethane Solanum tuberosum Biochemistry Biotechnology Molecular Medicine Cancer Research Cell Biology
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine

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Chemically forced dormancy termination mimics natural dormancy progression in potato tuber meristems by reducing ABA content and modifying expression of genes involved in regulating ABA synthesis and metabolism*

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Dormancy in potato tuber meristems: chemically induced cessation in dormancy matches the natural process based on transcript profiles