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Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
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03:02Primary and Secondary Growth in Roots and Shoots
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Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
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02:12Short-distance Transport of Resources
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Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
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02:19Morphogenesis
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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.
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01:26Signal Transduction: Overview
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Cells respond to many types of information, often through receptor proteins positioned on the membrane. They respond to chemical signals, such as hormones, neurotransmitters, and other signaling molecules, initiating a series of molecular reactions to produce an appropriate response. This is called signal transduction. Cells also coordinate different responses elicited by the same signaling molecule via mediators, allowing molecular cross-talk.
Typically, signal transduction involves three...
Typically, signal transduction involves three...
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01:56Plant Hormones
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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.
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The Influence of Humic Substances and Auxin-Producing Bacteria on <i>Acer saccharinum</i> Plants in Relation to Auxin-Humate Binding.
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细胞和分子调节信号在根生长和发育中的作用
1Ufa Institute of Biology, Ufa Federal Research Centre of the Russian Academy of Sciences, Pr. Octyabrya, 69, 450054 Ufa, Russia.
International journal of molecular sciences
|April 17, 2025
概括
植物根系适应环境变化,优化水和营养的吸收. 这确保了植物在各种条件下生存和生长.
科学领域:
- 植物生物学 植物生物学
- 环境科学 环境科学
- 农业学是一种农业学.
背景情况:
- 植物根系对于营养和水的获取至关重要.
- 环境因素显著影响根结构和功能.
- 适应机制是植物生存和作物生产率的关键.
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