The plant clock
نویسندگان
چکیده
منابع مشابه
Input signals to the plant circadian clock.
Eukaryotes and some prokaryotes have adapted to the 24 h day/night cycle by evolving circadian clocks, which now control very many aspects of metabolism, physiology and behaviour. Circadian clocks in plants are entrained by light and temperature signals from the environment. The relative timing of internal and external events depends upon a complex interplay of interacting rhythmic controls and...
متن کاملStochastic properties of the plant circadian clock.
Circadian clocks are gene regulatory networks whose role is to help the organisms to cope with variations in environmental conditions such as the day/night cycle. In this work, we explored the effects of molecular noise in single cells on the behaviour of the circadian clock in the plant model species Arabidopsis thaliana. The computational modelling language Bio-PEPA enabled us to give a stoch...
متن کاملMaking the clock tick: the transcriptional landscape of the plant circadian clock
Circadian clocks are molecular timekeepers that synchronise internal physiological processes with the external environment by integrating light and temperature stimuli. As in other eukaryotic organisms, circadian rhythms in plants are largely generated by an array of nuclear transcriptional regulators and associated co-regulators that are arranged into a series of interconnected molecular loops...
متن کاملThe physiology and molecular bases of the plant circadian clock.
Periodicity in biology comes in many shapes and sizes. Among the very rapid are ultradian rhythms in the courtship song of the Drosophila male, which recur every 50 to 60 s (Edmunds, 1988). Running at a slightly faster pace is the glycolytic oscillator in yeast, which exhibits selfsustained oscillations in NADH fluorescence. These are typically between 2 and 70 min long, though periods of up to...
متن کاملThe Importance of the Circadian Clock in Regulating Plant Metabolism
Carbohydrates are the primary energy source for plant development. Plants synthesize sucrose in source organs and transport them to sink organs during plant growth. This metabolism is sensitive to environmental changes in light quantity, quality, and photoperiod. In the daytime, the synthesis of sucrose and starch accumulates, and starch is degraded at nighttime. The circadian clock genes provi...
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ژورنال
عنوان ژورنال: Genome Biology
سال: 2000
ISSN: 1465-6906
DOI: 10.1186/gb-spotlight-20001215-02