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单词 senescence
释义

Definition of senescence in English:

senescence

noun sɪˈnɛs(ə)nssəˈnɛsəns
mass nounBiology
  • 1The condition or process of deterioration with age.

    Example sentencesExamples
    • Although it is characterized as being a deterioration process, senescence is considered to be a highly evolved genetic process.
    • But most healthy mammalian cells managed just a few dozen divisions before they stopped, a process known as replicative senescence.
    • The degradation of proteins and the remobilization of amino acids to developing tissues is a prominent process during senescence.
    • A pretreatment of cold-induction temperatures had little effect on the course of tissue senescence under these conditions.
    • Oxidative processes during senescence involve an increase in enzyme activities generating oxygen radicals and superoxide ions.
    Synonyms
    elderliness, old age, oldness, seniority, maturity, dotage, senility
    1. 1.1 Loss of a cell's power of division and growth.
      Example sentencesExamples
      • Additional carbon would also be released into the rhizosphere with border cell senescence and death.
      • The terms senescence and programmed cell death have led to some confusion.
      • Behind this zone of environmental invasion is a wave of cell senescence, death and necrotrophic disappearance.
      • Mortality barriers to human cell immortalization and effectors of replicative cellular senescence in human cells
      • We have devised a functional approach to clone genes involved in the regulation of cell growth and senescence.
      Synonyms
      feebleness, enfeeblement, infirmity, weakness, frailty, debilitation, debility, sickliness, incapacitation, malaise

Derivatives

  • senescent

  • adjective sɪˈnɛs(ə)ntsəˈnɛs(ə)nt
    Biology
    • For leaf and stem samples, mature but not senescent tissues were taken.
      Example sentencesExamples
      • A feature shared by senescent cells in culture and in vivo is shortening of the telomeres.
      • It is known that induction of telomere shortening leads to the extinction of yeast clones similar to a senescent phenotype.
      • Fourth, after some 30 passages, cells cultured at 33°C stopped proliferating, suggesting a senescent state.
      • The molecular mechanisms for vacuolar protein degradation and the nutrient recycling pathway in senescent leaves are generally not clear.
 
 

Definition of senescence in US English:

senescence

nounsəˈnɛsənssəˈnesəns
Biology
  • 1The condition or process of deterioration with age.

    Example sentencesExamples
    • The degradation of proteins and the remobilization of amino acids to developing tissues is a prominent process during senescence.
    • Oxidative processes during senescence involve an increase in enzyme activities generating oxygen radicals and superoxide ions.
    • But most healthy mammalian cells managed just a few dozen divisions before they stopped, a process known as replicative senescence.
    • Although it is characterized as being a deterioration process, senescence is considered to be a highly evolved genetic process.
    • A pretreatment of cold-induction temperatures had little effect on the course of tissue senescence under these conditions.
    Synonyms
    elderliness, old age, oldness, seniority, maturity, dotage, senility
    1. 1.1 Loss of a cell's power of division and growth.
      Example sentencesExamples
      • Behind this zone of environmental invasion is a wave of cell senescence, death and necrotrophic disappearance.
      • Mortality barriers to human cell immortalization and effectors of replicative cellular senescence in human cells
      • The terms senescence and programmed cell death have led to some confusion.
      • We have devised a functional approach to clone genes involved in the regulation of cell growth and senescence.
      • Additional carbon would also be released into the rhizosphere with border cell senescence and death.
      Synonyms
      feebleness, enfeeblement, infirmity, weakness, frailty, debilitation, debility, sickliness, incapacitation, malaise
 
 
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更新时间:2024/12/24 2:11:15