Periderm is the corky outer layer of a plant stem formed in secondary thickening or as a response to injury or infection.

2024年10月10日 · Periderm is a secondary dermal tissue that arises within the ground tissue of stems, specifically near the surface. It serves as a protective barrier, replacing the epidermis as the plant undergoes secondary growth.

Periderm is a transitory embryonic ectodermal cell layer that provides an interface between embryo and amniotic fluid during most of epidermal development in utero. From: Mouse Development, 2002

2022年5月20日 · The periderm acts as armor protecting the plant's inner tissues from biotic and abiotic stress. It forms during the radial thickening of plant organs such as stems and roots and replaces the function of primary protective tissues such as the epidermis and the endodermis.

2022年10月14日 · A. Periderm = secondary tissue derived from the cork cambium (phellogen) and the cork cambium itself; replaces the epidermis in woody stems and roots (Liquidambar twig). It is usually a continuous ring (not always), all the way around the stem, root, or fruit.

…a secondary dermal tissue (periderm) that replaces the epidermis along older stems and roots. …is the source of the periderm, a protective tissue that replaces the epidermis when the secondary growth displaces, and ultimately destroys, the epidermis of the primary plant body. Chatbot answers are created from Britannica articles using AI.

The periderm acts as the first line of defence for a plant, protecting wood and phloem from abiotic and biotic stresses. During secondary growth, through the increase in girth of plant organs, the periderm replaces the epidermis as the outermost tissue.

The periderm acts as armor protecting the plant's inner tissues from biotic and abiotic stress. It forms during the radial thickening of plant organs such as stems and roots and replaces the function of primary protective tissues such as the epidermis and the endodermis.

2020年2月1日 · The periderm acts as the first line of defence for a plant, protecting wood and phloem from abiotic and biotic stresses. During secondary growth, through the increase in girth of plant organs, the periderm replaces the epidermis as the outermost tissue.

Periderm is the outer layer of the bark of a tree. Let us know about the composition and formation of periderm. Phellogen, phellem, and phelloderm, all together make up the periderm. Non-technically, the secondary phloem and periderm are collectively called the bark of a tree. In woody plants, cork cambium is the outermost lateral meristem.