Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a brassinosteroid stimulus.

The process in which a cell irreversibly increases in size in one

The modification of histone H3 by the removal of a methyl group from lysine at position 9 of the histone.

Any process that stops, prevents or reduces long-day photoperiodism, where the response associated with the photoperiodism is flowering. Flowering is defined by the switch from the vegetative to the reproductive phase.

Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.

Any process that stops, prevents or reduces short-day photoperiodism, where the response associated with the photoperiodism is flowering. Flowering is defined by the switch from the vegetative to the reproductive phase.

The process involved in transforming a meristem that produces vegetative structures, such as leaves, into a meristem that produces reproductive structures, such as a flower or an inflorescence.

Any process that stops, prevents, or reduces the frequency, rate or extent of the addition of an acetyl group to a histone protein.

Any epigenetic process that stops, prevents or reduces the rate of gene expression.

The process whose specific outcome is the progression of the leaf over time, from its formation to the mature structure.

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.