NDLI: Differential gene regulation in potato cells and plants upon abrupt or gradual exposure to water stress

Content Provider	Springer Nature Link
Author	Ambrosone, Alfredo Costa, Antonello Martinelli, Rosanna Massarelli, Immacolata Simone, Vincenzo Grillo, Stefania Leone, Antonella
Copyright Year	2010
Abstract	Potato cDNA microarray slides (TIGR 1 K) were used to compare changes in gene expression of two potato cell populations subjected to shock or gradual exposure to PEG-mediated water stress. A total of 180 transcripts were found to be statistically up- or down-regulated in PEG-shocked or gradually stressed cells, compared to untreated control cells. Up-regulated genes in shocked cells were prevalently involved in carbohydrate metabolism, cellular communication, and signal transduction. In cells stressed gradually, the most represented induced genes were those involved in signal transduction, in response to environmental signals and in the regulation of transcription and translation machineries, including the heat shock protein 90-2, ribosomal and RNA-binding proteins. The expression of selected up-regulated genes was also tested in potato plants subjected to slow soil-drying conditions. Interestingly, the rgga gene, encoding an RNA-binding protein, was strongly induced in both leaves and roots of water-stressed potato plants, supporting its putative function in adaptive mechanisms to water stress. Pointing to differences in gene expression between shock-like and adaptive response, our findings might contribute to the controversial debate on the biological function of stress-responsive genes in cell damage repair or in restoring homeostasis and elaborating longer term responses for adaptation.
Starting Page	1157
Ending Page	1171
Page Count	15
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	33
Issue Number	4
e-ISSN	18611664
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-12-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Water stress cDNA microarray Adaptation Cell culture Potato Solanum tuberosum Plant Pathology Agriculture Plant Biochemistry Plant Anatomy/Development Plant Genetics & Genomics Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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