This work has also confirmed that the sensitivity of the arrays was sufficient to detect changes in integument expression even within the complex tissue of whole pistils. Two rats developed mesotheliomas within slightly over days; no tumour occurred in 20 controls Furst et al. Rats administered nickel sulfate by inhalation for 12 days developed testicular degeneration Benson et al.
NGA genes are thought to act redundantly in lateral organ growth [ ], and NGA2 could be acting more specifically in the carpel medial regions or inner integument. No mutagenicity was induced by nickel chloride at 0. Curr Opin Biotechnol.
Neurosci Lett. Additional file 6: Selected genes with known carpel expression patterns identified by the arrays. Your email address will not be published.
The height of the mushroom aids the dispersal of these sexually produced offspring. This process is seen only in eukaryotic cells, and this is the only part in the life cycle of a cell that involves sexual reproduction.
Each cell contains one-half the number of chromosomes as the original parent cell. Conversely, there are also species in which there is no sexual specialization, and the same individuals both contain masculine and feminine reproductive organs, and they are called hermaphrodites.
Nickel powder inhibited progression through S phase in Chinese hamster CHO cells, as measured by flow cytometry Costa et al. Empirical analysis of transcriptional activity in the Arabidopsis genome. Forty-six of rats lived for longer than 18 months.
Mitosis is a process of cell duplication, in which one cell divides into two genetically identical daughter cells. The biological indicator levels are influenced by the chemical and physical properties of the nickel compound studied and by the time of sampling.