Published September 8, 2005
by Cambridge University Press .
Written in English
|The Physical Object|
|Number of Pages||246|
Pattern formation is one of four processes that underlie development, the others being growth, cell diversification, and morphogenesis. See Animal morphogenesis, Cell differentiation, Plant growth. Pattern formation is the creation of a predictable arrangement of . Most multicellular organisms have a capacity to regenerate tissue after wounding. Few, however, have the ability to regenerate an entire new body from adult tissue. Induction of new shoot meristems from cultured root explants is a widely used, but poorly understood, process in which apical plant tissues are regenerated from adult somatic tissue through the de novo formation of shoot Cited by: dynamics underlying vascular pattern formation. However, at the same time, understanding the mechanistic basis of vascu-lar tissue patterning is particularly challenging in leaves. In fact, the exact position in the developing leaf primordium at which procambial strands will be formed is Cited by: The three types of plant cells are found in each of the major types of plant tissues: dermal, ground, and vascular tissues. Dermal tissue covers the outside of a plant in a single layer of cells called the epidermis. It mediates most of the interactions between a plant and its environment. Ground tissue makes up most of the interior of a plant.
A number of mutants affecting vascular differentiation and pattern formation have been isolated in Arabidopsis. Studies of some of these mutants have suggested that vascular tissue organization within the bundles and vascular pattern formation at the organ level are regulated by positional information. in the vascular tissues but also vascular differentiation and pattern formation at the organ level. Recent studies of Arabidopsis mutants have opened new avenues for understanding the molecular mechanisms regulating various aspects of vas-cular development, such as alignment of vascular strands (17,69), formation . A list of Plastic Canvas Patterns available at Everything Plastic Canvas. The Pattern Leaflets are produced by DRG, Plastic Canvas Creations, ANNIE'S ATTIC and others priced from $ to $ There are Pattern Leaflets in this collection. Category: Birds. Biological patterns such as animal markings, the segmentation of animals, and phyllotaxis are formed in different ways.. In developmental biology, pattern formation describes the mechanism by which initially equivalent cells in a developing tissue in an embryo assume complex forms and functions. Embryogenesis, such as of the fruit fly Drosophila, involves coordinated control of cell fates.
Growth, the increases in cell size and number that take place during the life history of an organism. Growth is seldom random. Rather, it occurs according to a plan that eventually determines the size and shape of the individual. Growth may be restricted to special regions of the organism, such as. In a living plant, auxins and other plant hormones nearly always appear to interact to determine patterns of plant development. Organ patterns. Growth and division of plant cells together result in the growth of tissue, and specific tissue growth contributes to the development of plant organs. Plant development - Plant development - The root system and its derivatives: Plants that have a single apical cell in the shoot also have a single apical cell in the root. The cell is again tetrahedral, but sometimes daughter cells are cut off from all four faces, with the face directed away from the axis producing the cells of the root cap. Living plant tissues can contain about 95% water, and apart from being an essential constituent for life, water also has several specific roles in the plant. Water is a very good solvent and dissolves many organic and inorganic solutes, which facilitates the transportation of these substances around the plant.