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单词 mesophyll
释义

Definition of mesophyll in English:

mesophyll

noun ˈmɛsə(ʊ)fɪlˈmɛzə(ʊ)fɪlˈmiːsə(ʊ)fɪlˈmiːzə(ʊ)fɪl
mass nounBotany
  • The inner tissue (parenchyma) of a leaf, containing many chloroplasts.

    〔植〕叶肉

    Example sentencesExamples
    • The mesophyll with large vascular bundles resembles an I-beam construction connecting the adaxial and abaxial surfaces.
    • A single cell culture, based on protoplasts that were isolated from the leaf mesophyll of tobacco, was used.
    • All three transgenic lines presented a significant decrease in the mean size of both epidermal internode and leaf mesophyll cells.
    • Stromules tend to be relatively rare in cell types such as mesophyll or guard cells that contain large chloroplasts.
    • In mesophyll cells, chloroplasts are dismantled in an early phase of senescence, while mitochondria remain functional.
    • Thus, elements of the guard cell's response to stress are present in mesophyll and xylem parenchyma cells.
    • Plastids of mesophyll cells from leaves of control or herbicide-treated plants grown at 20°C.
    • Inactivation of plastids in the leaf mesophyll, which normally contains the majority of chloroplasts would be the most easily identified.
    • They are stored in vacuoles of a specialized leaf tissue, the paraveinal mesophyll.
    • As solar angle changes, individual mesophyll cells of the leaf may pass from full sunlight to shade within a second.
    • By such thickening, mesophyll surface area per leaf area becomes greater in sun leaves than in shade leaves.
    • They also accumulate throughout the leaf in mesophyll tissue and in trichomes.
    • It was concluded that stomatal conductance is not directly determined by the photosynthetic capacity of guard cells or the leaf mesophyll.
    • It should be interesting to find out where in the leaf this barrier is built up: gradually along the mesophyll or abruptly between xylem and mesophyll.
    • In addition, the magnitude of growth-associated is similar between xylem and mesophyll and between xylem and epidermis.
    • Messenger RNA was isolated from guard cells and mesophyll tissue as described previously and used as a template for RT-PCR.
    • Cytoplasm of the leaf mesophyll of a D. antarctica plant growing in a wet, fertile habitat on the seashore.
    • Leaf mesophyll is differentiated into palisade and spongy parenchyma, epidermis is already formed.
    • Light dependence of zeaxanthin formation in hypocotyl and mesophyll chloroplasts of Arabidopsis seedlings
    • Leaves are composed of various kinds of tissues, including epidermis, mesophyll, bundle sheath, and vascular bundles.

Origin

Mid 19th century: from meso- 'middle' + Greek phullon 'leaf'.

Definition of mesophyll in US English:

mesophyll

noun
Botany
  • The inner tissue (parenchyma) of a leaf, containing many chloroplasts.

    〔植〕叶肉

    Example sentencesExamples
    • A single cell culture, based on protoplasts that were isolated from the leaf mesophyll of tobacco, was used.
    • They are stored in vacuoles of a specialized leaf tissue, the paraveinal mesophyll.
    • Inactivation of plastids in the leaf mesophyll, which normally contains the majority of chloroplasts would be the most easily identified.
    • Leaf mesophyll is differentiated into palisade and spongy parenchyma, epidermis is already formed.
    • Thus, elements of the guard cell's response to stress are present in mesophyll and xylem parenchyma cells.
    • Leaves are composed of various kinds of tissues, including epidermis, mesophyll, bundle sheath, and vascular bundles.
    • By such thickening, mesophyll surface area per leaf area becomes greater in sun leaves than in shade leaves.
    • Stromules tend to be relatively rare in cell types such as mesophyll or guard cells that contain large chloroplasts.
    • Cytoplasm of the leaf mesophyll of a D. antarctica plant growing in a wet, fertile habitat on the seashore.
    • All three transgenic lines presented a significant decrease in the mean size of both epidermal internode and leaf mesophyll cells.
    • They also accumulate throughout the leaf in mesophyll tissue and in trichomes.
    • In addition, the magnitude of growth-associated is similar between xylem and mesophyll and between xylem and epidermis.
    • It should be interesting to find out where in the leaf this barrier is built up: gradually along the mesophyll or abruptly between xylem and mesophyll.
    • The mesophyll with large vascular bundles resembles an I-beam construction connecting the adaxial and abaxial surfaces.
    • Messenger RNA was isolated from guard cells and mesophyll tissue as described previously and used as a template for RT-PCR.
    • Plastids of mesophyll cells from leaves of control or herbicide-treated plants grown at 20°C.
    • It was concluded that stomatal conductance is not directly determined by the photosynthetic capacity of guard cells or the leaf mesophyll.
    • In mesophyll cells, chloroplasts are dismantled in an early phase of senescence, while mitochondria remain functional.
    • Light dependence of zeaxanthin formation in hypocotyl and mesophyll chloroplasts of Arabidopsis seedlings
    • As solar angle changes, individual mesophyll cells of the leaf may pass from full sunlight to shade within a second.

Origin

Mid 19th century: from meso- ‘middle’ + Greek phullon ‘leaf’.

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更新时间:2024/11/10 1:33:36