Floral Organs

Floral organs are the specialized structures of flowering plants that organize reproduction and help flowers attract, receive, and transfer pollen. They arise from the floral meristem in distinct whorls: sepals protect the developing bud, petals often provide visual or olfactory cues, stamens produce pollen in anthers, and carpels contain ovules and receive pollen through the stigma. Their coordinated development and interactions with pollinators enable fertilization, seed formation, and fruit production. Studying floral organs supports plant identification, evolutionary research, crop improvement, and investigations of how genetic and environmental factors shape reproductive development.

Floral Organs - Related Videos

Research

JoVE Journal - Biology

Floral-dip Transformation of Arabidopsis thaliana to Examine pTSO2::β-glucuronidase Reporter Gene Expression

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Cited by 21 •

2010

This article illustrates the floral-dip method of Agrobacterium tumefaciens -mediated transformation of Arabidopsis thaliana. By introducing a cell-cycle regulated promoter-reporter, pTSO2::β-glucuronidase (GUS), into Arabidopsis, we illustrates how one detects GUS reporter expression in transgenic seedlings.

Flavonoid Content During the Growth and Floral Development of Calendula officinalis L.

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Cited by 1 •

2025

Here, we present the aluminum chloride colorimetric method, a direct analytical technique to determine flavonoids in calendula quantitatively. This approach utilizes a straightforward chemical reaction involving treating the calendula extract with an aluminum chloride reagent, forming a colored complex. The color intensity, assessed using spectrophotometry, correlates with the flavonoid concentration.

Education

JoVE Core - Chemistry

Organic Compounds

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2020

All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...

Genetics of Organisms - Concepts

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2019

Mendelian Genetics Evolution is caused by changes in the genetic composition of populations. In the field of population genetics, scientists model this process as changes in the frequency of alleles at individual genetic loci. This simple representation of how evolution occurs dates to Gregor Mendel’s analysis of trait inheritance patterns in pea plants, first presented in 1865. Mendel determined, using rigorous collection of data, that noticeable traits are controlled by two alleles of each...

Plant Growth and Agrobacterium-mediated Floral-dip Transformation of the Extremophyte Schrenkiella parvula

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Cited by 10 •

2019

Agrobacterium-mediated transformation using a floral-dip method can be successfully employed to create stable transgenic lines of the extremophyte model Schrenkiella parvula. We present a protocol modified from that for Arabidopsis thaliana, considering different growth habits and physiological characteristics of the extremophyte.

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