the integuments of the ovule is the tissue that develops into a protective seed coat surrounding the embryo.
the integuments of the ovule is the tissue that develops into a protective seed coat surrounding the embryo.
tissue that develops into a protective seed coat surrounding the embryo?
the integuments of the ovule
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a seed is an embryonic plant enclosed in a protective outer covering. the formation of the seed is part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosperm plants.









































seeds are the product of the ripened ovule, after fertilization by pollen and some growth within the mother plant. the embryo is developed from the zygote and the seed coat from the integuments of the ovule.
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the seed coat develops from the maternal tissue, the integuments, originally surrounding the ovule. the seed coat in the mature seed can be a paper-thin layer (e.g. peanut) or something more substantial (e.g. thick and hard in honey locust and coconut), or fleshy as in the sarcotesta of pomegranate. the seed coat helps protect the embryo from mechanical injury, predators and drying out. depending on its development, the seed coat is either bitegmic or unitegmic. bitegmic seeds form a testa from the outer integument and a tegmen from the inner integument while unitegmic seeds have only one integument. usually parts of the testa or tegmen form a hard protective mechanical layer. the mechanical layer may prevent water penetration and germination. amongst the barriers may be the presence of lignified sclereids.
seed