long-day photoperiodism, flowering

A change from the vegetative to the reproductive phase as a result of detection of, or exposure to, a period of light that exceeds the critical day length. The critical day length varies between species. Although the term is long-day is used, most species actually respond to the duration of the night, so that the response will occur when a period of darkness falls short of the number of hours defined by 24 minus the critical day length.

long-day photoperiodism

Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detection of, or exposure to, a day length that exceeds a particular duration known as the 'critical day length'. The critical day length varies between species. Although the term long-day is used, most species actually respond to the duration of the night, so that the response will occur when a period of darkness falls short of the number of hours defined by 24 hours minus the critical day length.

short-day photoperiodism

Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detection of, or exposure to, a day length that falls short of a particular duration known as the 'critical day length'. The critical day length varies between species. Although the term short-day is used, most species actually respond to the duration of the night, so that the response will occur when a period of darkness exceeds the number of hours defined by 24 hours minus the critical day length.

short-day photoperiodism, flowering

A change from vegetative to reproductive phase as a result of detection of, or exposure to, a period of light that falls short of the critical day length. The critical day length varies between species. Although the term is short-day is used, most species actually respond to the duration of the night, so that the response will occur when a period of darkness exceeds the number of hours defined by 24 minus the critical day length.

entrainment of circadian clock by photoperiod

The synchronization of a circadian rhythm to photoperiod, the intermittent cycle of light (day) and dark (night).

photoperiodism, flowering

A change from the vegetative to the reproductive phase as a result of detection of, or exposure to, a period of light or dark of a given length. The length of the period of light or dark required to initiate the change is set relative to a particular duration known as the 'critical day length'. The critical day length varies between species.

2-oxopropyl-CoM reductase (carboxylating) activity

Catalysis of the reaction: acetoacetate + coenzyme M + NADP+ = 2-oxopropyl-coenzyme M + CO2 + NADPH.

photoperiodism

Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detection of, or exposure to, a period of light or dark of a given length, measured relative to a particular duration known as the 'critical day length'. The critical day length varies between species.

DNA ligase (ATP) activity

Catalysis of the reaction: ATP + deoxyribonucleotide(n) + deoxyribonucleotide(m) = AMP + diphosphate + deoxyribonucleotide(n+m).

DNA ligase (NAD+) activity

Catalysis of the reaction: NAD+ + deoxyribonucleotide(n) + deoxyribonucleotide(m) = AMP + nicotinamide nucleotide + deoxyribonucleotide(n+m).