Transcript profiles of stress-related genes in developing white spruce (Picea glauca) somatic embryos cultured with polyethylene glycol. Stasolla, C., van Zyl, L., Egertsdotter, U., Craig, D., Liu, W., & Sederoff, R. R. Plant Science, 165(4):719–729, October, 2003.
Transcript profiles of stress-related genes in developing white spruce (Picea glauca) somatic embryos cultured with polyethylene glycol [link]Paper  doi  abstract   bibtex   
The effect of polyethylene glycol (PEG) on the transcript level of 512 stress-related genes was analyzed by cDNA microarray. Major changes in gene expression between control and PEG-treated embryos were observed during the initial stages of development, upon transfer of the embryogenic tissue on maturation medium, and during the late phases of development, culminating with the generation of cotyledonary embryos. Only small changes in gene expression were observed during the intermediate phases of embryo development. The transcript levels of several genes involved in cell aging and detoxification mechanisms, including peroxidases and chitinases, were developmentally regulated during the embryogenic process. Major differences in the expression of these genes were observed between control and PEG-treated embryos. Based on their expression profiles, four different clusters of genes involved in stress response mechanisms were identified. The first group of genes, which included several heat shock proteins, was up-regulated in PEG-treated immature embryos. An opposite tendency was observed for a second cluster of genes, which included a glutathione-S-transferase, and a cysteine protease. The third class included genes repressed by PEG in fully developed embryos, whereas a fourth group of genes, which included several heat shock proteins and ubiquitin, was induced in PEG-treated embryos at the end of the culture period. Difference in transcript levels and profiles of several genes involved in cell wall and lignin biosynthesis were also observed between control and PEG-treated embryos.
@article{stasolla_transcript_2003,
	title = {Transcript profiles of stress-related genes in developing white spruce ({Picea} glauca) somatic embryos cultured with polyethylene glycol},
	volume = {165},
	issn = {0168-9452},
	url = {https://www.sciencedirect.com/science/article/pii/S0168945203002280},
	doi = {10/fk3m4b},
	abstract = {The effect of polyethylene glycol (PEG) on the transcript level of 512 stress-related genes was analyzed by cDNA microarray. Major changes in gene expression between control and PEG-treated embryos were observed during the initial stages of development, upon transfer of the embryogenic tissue on maturation medium, and during the late phases of development, culminating with the generation of cotyledonary embryos. Only small changes in gene expression were observed during the intermediate phases of embryo development. The transcript levels of several genes involved in cell aging and detoxification mechanisms, including peroxidases and chitinases, were developmentally regulated during the embryogenic process. Major differences in the expression of these genes were observed between control and PEG-treated embryos. Based on their expression profiles, four different clusters of genes involved in stress response mechanisms were identified. The first group of genes, which included several heat shock proteins, was up-regulated in PEG-treated immature embryos. An opposite tendency was observed for a second cluster of genes, which included a glutathione-S-transferase, and a cysteine protease. The third class included genes repressed by PEG in fully developed embryos, whereas a fourth group of genes, which included several heat shock proteins and ubiquitin, was induced in PEG-treated embryos at the end of the culture period. Difference in transcript levels and profiles of several genes involved in cell wall and lignin biosynthesis were also observed between control and PEG-treated embryos.},
	language = {en},
	number = {4},
	urldate = {2021-07-05},
	journal = {Plant Science},
	author = {Stasolla, Claudio and van Zyl, Leonel and Egertsdotter, Ulrika and Craig, Deborah and Liu, Wenbin and Sederoff, Ronald R.},
	month = oct,
	year = {2003},
	keywords = {Microarray, Polyethylene glycol, Transcript levels, White spruce},
	pages = {719--729},
}

Downloads: 0