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The hypocotyl (short for "hypocotyledonous stem", [1] meaning "below seed leaf") is the stem of a germinating seedling, found below the cotyledons (seed leaves) and above the radicle (root).
In the developing embryo, the hypocotyl is the embryonic axis that bears the seedling leaves (cotyledons). Read More. In plant development: Origin of the primary organs. …other four will form the hypocotyl, the part of the embryo between the cotyledons and the primary root (radicle).
The hypocotyl is the short segment of stem between the cotyledons and roots. It never elongated enough to push the cotyledons above the ground. There is a central, thick root called the primary (tap) root.
The hypocotyl is the next organ after the radicle to emerge from the seed (Fig. 2). This pre-emergence phase is critical to enable the seedling to reach sunlight to commence photosynthesis.
Hypocotyl elongation is a vital process that drives seedling emergence, light capture, and the establishment of structural integrity in plants. It involves cellular expansion, cell wall modification, microtubule organization, and the coordination of various phytohormones and environmental cues.
Definition. The hypocotyl is the part of a seedling that connects the cotyledons (seed leaves) to the root system, serving as a crucial transitional zone during germination and early growth.
To highlight their anatomical origin, we use the term “hypocotyl-tuber” for these turnip vegetative storage organs. We combined cytological, physiological, genetic and transcriptomic approaches,...
We propose that local auxin metabolism in the hypocotyl plays a critical role in modulating the homeostasis, spatial distribution and concentration gradient of unmodified and active IAA, thereby...
In this review, we provide evidence that the hypocotyl serves as ideal model object to study cell expansion mechanisms and its regulation. We focus on the regulation of hypocotyl development by light and highlight the key modulating proteins in this signaling cascade.
A small member of the mustard family (Brassicaceae), commonly used as a model system for plant genetics, physiology, and molecular biology. coleoptile. The outermost sheathing leaf of a grass seedling, which serves as a protective sheath for the leaf plumule and shoot apical meristem. hypocotyl.