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单词 phytochrome
释义

Definition of phytochrome in English:

phytochrome

noun ˈfʌɪtəkrəʊmˈfīdōˌkrōm
mass nounBiochemistry
  • A blue-green pigment found in many plants, in which it regulates various developmental processes.

    〔生化〕植物光敏素,光敏色素

    Example sentencesExamples
    • The plant photoreceptor phytochrome exhibits remarkable structural and functional variabilities in the plant cell.
    • Moreover, it has been suggested that some of the reported blue-UV effects may have resulted from phytochrome instead of blue-UV photoreceptor action.
    • Light signalling pathways from both phytochrome and cryptochrome photoreceptors regulate clock components to achieve entrainment in plants.
    • This macroscopically observable reaction was identified to be coupled with light-induced processes of the photoreceptor phytochrome.
    • This is the opposite of the situation in higher plants, where red light activates and far-red light inactivates phytochrome.

Origin

Late 19th century: from phyto- 'relating to plants' + Greek khrōma 'colour'.

Definition of phytochrome in US English:

phytochrome

nounˈfīdōˌkrōm
Biochemistry
  • A blue-green pigment found in many plants, in which it regulates various developmental processes.

    〔生化〕植物光敏素,光敏色素

    Example sentencesExamples
    • Moreover, it has been suggested that some of the reported blue-UV effects may have resulted from phytochrome instead of blue-UV photoreceptor action.
    • The plant photoreceptor phytochrome exhibits remarkable structural and functional variabilities in the plant cell.
    • This macroscopically observable reaction was identified to be coupled with light-induced processes of the photoreceptor phytochrome.
    • Light signalling pathways from both phytochrome and cryptochrome photoreceptors regulate clock components to achieve entrainment in plants.
    • This is the opposite of the situation in higher plants, where red light activates and far-red light inactivates phytochrome.

Origin

Late 19th century: from phyto- ‘relating to plants’ + Greek khrōma ‘color’.

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更新时间:2025/7/17 14:58:50