Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Morphogenesis02:19

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
Pollination and Flower Structure02:40

Pollination and Flower Structure

Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.
The Angiosperm Life Cycle02:39

The Angiosperm Life Cycle

Plants have a life cycle split between two multicellular stages: a haploid stage—with cells containing one set of chromosomes—and a diploid stage—with cells containing two sets of chromosomes. The haploid stage is the gamete-producing gametophyte, and the diploid stage is the spore-producing sporophyte.
Seed Structure and Early Development of the Sporophyte02:33

Seed Structure and Early Development of the Sporophyte

Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
Fruit Development, Structure, and Function01:58

Fruit Development, Structure, and Function

Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
Microbial Morphologies01:29

Microbial Morphologies

Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

AN EXAMPLE OF NONEQUILIBRIUM PROCESSES: GYNODIOECY OF THYMUS VULGARIS L. IN BURNED HABITATS.

Evolution; international journal of organic evolution·2017
Same author

Seed migration and the structure of plant populations : An experimental study on Thymus vulgaris L.

Oecologia·2017
Same author

Common garden experiments in the genomic era: new perspectives and opportunities.

Heredity·2015
Same author

The consequences of gynodioecy in natural populations of Thymus vulgaris L.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013
Same author

Inheritance of some Mendelian factors in intra- and interspecific crosses between Setaria italica and Setaria viridis.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013
Same author

Complex determination of male sterility in Thymus vulgaris L.: genetic and molecular analysis.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
関連記事をすべて見る

関連する実験動画

Updated: Jul 6, 2026

Customization of Aspergillus niger Morphology Through Addition of Talc Micro Particles
10:51

Customization of Aspergillus niger Morphology Through Addition of Talc Micro Particles

Published on: March 15, 2012

花粉の形態学の進化

I Dajoz, I Till-Bottraud, P H Gouyon

    Science (New York, N.Y.)
    |July 5, 1991
    PubMed
    まとめ
    この要約は機械生成です。

    進化の傾向は,アニオスペルムの花粉がより多くの開口を発展させることを示しています. Viola diversifoliaでは,4つの開口を持つ花粉がより速く発芽したが,他の欠点に直面し,複雑な胞子植物戦略を示唆した.

    さらに関連する動画

    Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples
    10:57

    Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples

    Published on: February 3, 2017

    Collection and Identification of Pollen from Honey Bee Colonies
    08:11

    Collection and Identification of Pollen from Honey Bee Colonies

    Published on: January 19, 2021

    関連する実験動画

    Last Updated: Jul 6, 2026

    Customization of Aspergillus niger Morphology Through Addition of Talc Micro Particles
    10:51

    Customization of Aspergillus niger Morphology Through Addition of Talc Micro Particles

    Published on: March 15, 2012

    Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples
    10:57

    Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples

    Published on: February 3, 2017

    Collection and Identification of Pollen from Honey Bee Colonies
    08:11

    Collection and Identification of Pollen from Honey Bee Colonies

    Published on: January 19, 2021

    科学分野:

    • 進化生物学の進化生物学について
    • 植物生殖形態学 植物生殖形態学
    • 花粉の発達について

    背景:

    • アンジオスペルムの花粉の形態は,進化の過程で開口数が増加する方向に進化しました.
    • ネオ・ダーウィンの理論は,アパートル数に対するポリモルフィズムと,アパートル数を増やすためのフィットネス・ベネフィットは必要であると示唆しています.
    • 異なる開口数を持つ花粉粒は,同じ植物種内で頻繁に観察されます.

    研究 の 目的:

    • ヴァイオラ・ダイバーシフォリアの花粉の開口数の違いによる健康状態の影響を調査する.
    • 3つの開口と4つの開口の花粉粒の発芽速度と潜在的な欠点を比較するために.

    主な方法:

    • 種Viola diversifolia.からの3つまたは4つの開口を持つ花粉の粒子の比較分析.
    • 発芽率の評価と,各種の花粉の適合性に関連する他の要因の特定.

    主要な成果:

    • 4つの開口を持つ花粉粒は,3つの開口を持つ花粉粒と比較して,より速い発芽を示した.
    • 発芽速度が速いにもかかわらず,4つの開口を持つ花粉粒は,追加の欠点に直面しました.
    • ゲメトファイトレベルでのこれらの発見は,スポロファイトの適応戦略の洞察を提供します.

    結論:

    • この研究は,花粉の開口数進化におけるトレードオフを強調しており,開口数の増加は発芽の利点と潜在的な欠点をもたらします.
    • 結果は,花粉の形態の進化は,ゲメトファイトとスポロファイトの両方の世代に作用する複雑な選択的圧力によって影響されていることを示唆しています.
    • ヴァイオラ・ダイバーシフォリア内の開口数における観察されたポリモルフィズムは,異なるフィットネス成分をバランスさせるダイナミックな進化戦略を反映しています.