Sepal Primordia
Sepal Primordia - Related Videos
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Live Confocal Imaging of Developing Arabidopsis Flowers
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Cited by 16 •
2017
Live confocal imaging provides biologists with a powerful tool to study development. Here, we present a detailed protocol for the live confocal imaging of developing Arabidopsis flowers.
07:25
Combining Histochemical Staining and Image Analysis to Quantify Starch in the Ovary Primordia of Sweet Cherry during Winter Dormancy
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Cited by 9 •
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We present a methodology to quantify the starch content in the ovary primordia in sweet cherry (Prunus avium L.) during winter dormancy by using an image analysis system combined with histochemical techniques.
06:11
Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging
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Cited by 1 •
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Maize leaf primordia are deeply ensheathed and rolled, making them difficult to study. Here, we present methods for preparing transverse sections and unrolled whole mounts of maize leaf primordia for fluorescence and confocal imaging.
06:00
Cortex-, Hippocampus-, Thalamus-, Hypothalamus-, Lateral Septal Nucleus- and Striatum-specific In Utero Electroporation in the C57BL/6 Mouse
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Cited by 14 •
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This protocol describes in detail how to specifically transfect different regions in the C57BL/6 central nervous system via in utero electroporation. Included in this protocol are detailed instructions for transfections of regions that develop into the cortex, hippocampus, thalamus, hypothalamus, lateral septal nucleus and striatum.
02:40
Pollination and Flower Structure
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2020
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. Flowers must be pollinated to produce seeds. In angiosperms, pollination is the transfer of pollen from the anther of the stamen (the male structure) to the stigma of the carpel (the female structure). Flowers may be self-pollinated or cross-pollinated.
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Localized auxin accumulation helps establish initiation sites in the peripheral region of the floral meristem. These positional cues determine where an outgrowth begins, linking chemical patterning with the spatial arrangement of floral organs. Studying this relationship shows how a developing meristem converts regional information into the organized placement of individual structures.
After an initiation site is established, cell division and cell expansion contribute to the growth and form of the emerging structure. Their coordinated activity marks a transition from broadly meristematic growth toward organ differentiation. Examining this progression helps explain how an initially localized event becomes a recognizable component of floral architecture.
Floral patterning depends on interactions among genetic programs, hormonal signals, and neighboring tissues rather than on a single influence. Together, these factors coordinate where structures arise and how they develop within the meristem. Their combined effects also provide a framework for investigating differences in floral architecture and evolutionary variation.
Researchers can treat the emerging structures as visible landmarks within a developing floral meristem. Their positions and developmental progression help reveal how organ initiation is organized across the peripheral region. Following these landmarks connects local events, such as auxin accumulation and growth, with larger outcomes including organ positioning and overall floral architecture.
Comparing their positions and growth can indicate how the meristem organizes organ placement and how localized developmental events contribute to floral form. Such observations also help connect changes in early outgrowths with variation in mature floral architecture. This makes them useful for examining both developmental coordination and broader evolutionary differences among flowers.
They provide a point of connection between molecular or hormonal regulation and visible changes in plant form. By analyzing their initiation, growth, and differentiation, developmental biology can examine how genes, hormones, and tissue interactions coordinate floral construction. The same analysis supports investigation of how developmental processes generate organized architecture and evolutionary variation.