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Eudicots and monocots seeds have the same basic structures including the seed coat and mature embryo. However, there are a few key differences.
Embryo. The embryo is the most important part of a seed. It is diploid, developed from the fertilized egg. All the cells that need to develop into a mature embryo are present within the embryo. An embryo comprises the following parts: Epicotyl.
Oct 13, 2021 · Figure 5 Depiction of a wheat seed (actually fruit). The germ is the embryo. The endosperm is stored food and the bran is the fused seed coat and fruit wall. White bread is made from wheat that has had the bran and germ removed. Seed plants also have two dispersal agents: the seed and pollen.
Depending on the species of plant, a typical seed has one or more seed coat (formed from the integuments of the ovule), one or more cotyledons, and an embryo axis. Mature seeds can be non-albuminous (no endosperm present), or albuminous (retains endosperm).
Jun 7, 2024 · Essentially, a seed consists of a miniature undeveloped plant (the embryo), which, alone or in the company of stored food, is surrounded by a protective coat. Learn more about seed characteristics, dispersal, and germination.
Jul 27, 2022 · Basic seed morphology. Seeds have three main functions: Propagation of the plant. This is accomplished by the embryo, which is the nascent (new, young) plant resulting from the combination of genes from the male sperm, transmitted by the pollen, to the female egg, held in an ovule in the ovary.
The mature embryo consists of cotyledons (seed leaves), hypocotyl (stem-like embryonic axis below the cotyledons), radicle (embryonic root). Seed and embryo types were defined by Martin (1946). These and the resulting evolutionary trends are found on the "seed evolution" webpage.
