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词汇 hemiparasite
释义

Definition of hemiparasite in English:

hemiparasite

nounhɛmɪˈparəsʌɪtˌhɛməˈpɛrəˌsaɪt
Botany
  • A plant which obtains or may obtain part of its food by parasitism, e.g. mistletoe, which also photosynthesizes.

    〔植〕半寄生植物;兼性寄生植物

    Example sentencesExamples
    • On emergence, holoparasites produce only a nonphotosynthetic inflorescence, whereas hemiparasites develop a photosynthetic shoot system before flowering.
    • Angiosperm root hemiparasites attach to the root system of a host plant and extract xylem sap after gaining contact with xylem vessels.
    • In the case of hemiparasites that rely on solutes from the host transpiration stream, it is clear that a higher conductance of parasite xylem and stomata sustains water flux from the host.
    • Rhinanthus minor is a facultative hemiparasite found in natural and semi-natural grasslands throughout the UK and Europe.
    • The federally endangered hemiparasite Schwalbea americana is a fire-dependent plant.

Definition of hemiparasite in US English:

hemiparasite

nounˌhɛməˈpɛrəˌsaɪtˌheməˈperəˌsīt
Botany
  • A plant which obtains or may obtain part of its food by parasitism, e.g. mistletoe, which also photosynthesizes.

    〔植〕半寄生植物;兼性寄生植物

    Example sentencesExamples
    • Angiosperm root hemiparasites attach to the root system of a host plant and extract xylem sap after gaining contact with xylem vessels.
    • In the case of hemiparasites that rely on solutes from the host transpiration stream, it is clear that a higher conductance of parasite xylem and stomata sustains water flux from the host.
    • Rhinanthus minor is a facultative hemiparasite found in natural and semi-natural grasslands throughout the UK and Europe.
    • On emergence, holoparasites produce only a nonphotosynthetic inflorescence, whereas hemiparasites develop a photosynthetic shoot system before flowering.
    • The federally endangered hemiparasite Schwalbea americana is a fire-dependent plant.
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