Investigation on epigenetic mechanism has increased in recent years in that epigenetic seems explain plant’s adaptation to biotic and abiotic stress. Epigenetic is basically referred to molecular mechanisms controlled by environment that influence gene expression without modifying DNA sequence namely DNA information. A molecular epigenetic system based on DNA can be summarized as: 1) a signal from the environment lead to 2) a signal in the cell that cause a “non genetic” modification on DNA and 3) a last signal that maintain the modification by next cellular divisions. Epigenetic mechanisms are basically due to: DNA methylation, histone modification and Small-RNA (sRNA). These mechanisms are intimately interconnected and involved in plant’s adaptation to different environments. Researches on DNA methylation have been conducted at Agricultural genetics and genetic biotechnologies Unit of University of Perugia: experimental trials investigated plant response to salt stress (Brassica napus L.), water stress (Olea europaea L. and Vitis vinifera L.) and iron deficit (Hordeum vulgare L.)
Come le piante rispondono agli stress attivando meccanismi epigenetici
Lorenzetti Silvia
;Bocchini Marika
2016
Abstract
Investigation on epigenetic mechanism has increased in recent years in that epigenetic seems explain plant’s adaptation to biotic and abiotic stress. Epigenetic is basically referred to molecular mechanisms controlled by environment that influence gene expression without modifying DNA sequence namely DNA information. A molecular epigenetic system based on DNA can be summarized as: 1) a signal from the environment lead to 2) a signal in the cell that cause a “non genetic” modification on DNA and 3) a last signal that maintain the modification by next cellular divisions. Epigenetic mechanisms are basically due to: DNA methylation, histone modification and Small-RNA (sRNA). These mechanisms are intimately interconnected and involved in plant’s adaptation to different environments. Researches on DNA methylation have been conducted at Agricultural genetics and genetic biotechnologies Unit of University of Perugia: experimental trials investigated plant response to salt stress (Brassica napus L.), water stress (Olea europaea L. and Vitis vinifera L.) and iron deficit (Hordeum vulgare L.)I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
