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The endosperm is a tissue produced inside the seeds of most of the flowering plants following double fertilization. It is triploid (meaning three chromosome sets per nucleus) in most species, [1] which may be auxin-driven. [2] It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein. This ...
Other seed components include the endosperm, which is tissue rich in nutrients that will help support the growing plant embryo, and the seed coat, which is a protective outer covering. The first cell division of a zygote is asymmetric , resulting in an embryo with one small cell (the apical cell) and one large cell (the basal cell). [ 22 ]
This is an accepted version of this page This is the latest accepted revision, reviewed on 4 February 2025. Union of opposite-sex gametes in sexual reproduction to form a zygote This article is about fertilisation in animals and plants. For fertilisation in humans specifically, see Human fertilization. For soil improvement, see Fertilizer. "Conceive" redirects here. For the health magazine ...
Detailed illustration of the different parts constituting a wheat kernel. The germ of a cereal grain is the part that develops into a plant; [1] it is the seed embryo. [2] Along with bran, germ is often a by-product of the milling [3] that produces refined grain products.
The parts of a flower Double fertilization. Double fertilization or double fertilisation (see spelling differences) is a complex fertilization mechanism of angiosperms.This process involves the fusion of a female gametophyte or megagametophyte, also called the embryonic sac, with two male gametes (sperm).
The endosperm is surrounded by the aleurone layer (peripheral endosperm), filled with proteinaceous aleurone grains. Originally, by analogy with the animal ovum, the outer nucellus layer was referred to as albumen, and the inner endosperm layer as vitellus. Although misleading, the term began to be applied to all the nutrient matter.
A whole grain is a grain of any cereal and pseudocereal that contains the endosperm, germ, and bran, in contrast to refined grains, which retain only the endosperm. [1] [2] [3] As part of a general healthy diet, consumption of whole grains is associated with lower risk of several diseases.
Wheatings, a milling byproduct comprising mostly bran with some pieces of endosperm also left over, are included in this category. Bran was found to be the most successful slug deterrent by BBC's TV programme Gardeners' World. It is a common substrate and food source used for feeder insects, such as mealworms and waxworms. Wheat bran has also ...