Hormonal influence on maize inflorescence development and reproduction.
Amina Chaudhry1,2, Zongliang Chen1, Andrea Gallavotti3,4
1Waksman Institute of Microbiology, Rutgers University, Piscataway, NJ, 08854-8020, USA.
Plant Reproduction
|October 5, 2024
Summary
Plant hormones are crucial for maize reproductive development, influencing tassel and ear formation. Understanding these phytohormone roles is key to improving maize yield and human calorie uptake.
Area of Science:
- Plant Biology
- Agricultural Science
- Genetics
Background:
- Maize is a vital global crop, essential for human nutrition.
- Maize reproductive success relies on unisexual inflorescences (tassel and ear).
- Inflorescence development is governed by intricate genetic and hormonal pathways, affected by environmental factors.
Purpose of the Study:
- To review the roles of phytohormones in maize reproductive development.
- To synthesize historical and recent findings on hormone-mediated development.
- To connect hormonal regulation to successful reproduction and seed yield.
Main Methods:
- Analysis of classic maize developmental mutants.
- Application of modern molecular approaches.
- Review of existing literature on plant hormones and maize development.
Main Results:
- Phytohormones significantly influence key developmental steps in maize reproduction.
- Hormonal networks regulate the formation of tassels and ears.
- Environmental factors interact with hormonal pathways to affect development.
Conclusions:
- Phytohormones are central regulators of maize reproductive commitment and development.
- A comprehensive understanding of these roles can enhance maize breeding strategies.
- Further research into hormone-environment interactions is vital for optimizing crop yield.
More Related Videos
Related Concept Videos
Morphogenesis
27.7K
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.
27.7K
Plant Hormones
23.6K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
23.6K
Hormonal Control of the Ovarian Cycle
438
The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
438
Hormonal Regulation of the Menstrual Cycle
312
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
312
Target Cell Response to Hormones
3.0K
Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
3.0K
Gonadal and Placental Hormones
1.3K
The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
1.3K


