Search results
Results from the WOW.Com Content Network
Outside the stele lies the endodermis, which is the innermost cell layer of the cortex. The concept of the stele was developed in the late 19th century by French botanists P. E. L. van Tieghem and H. Doultion as a model for understanding the relationship between the shoot and root, and for discussing the evolution of vascular plant morphology. [2]
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...
The endodermis is the boundary between the cortex and the stele. In many seedless plants, such as ferns, the endodermis is a distinct layer of cells immediately outside the vascular cylinder (stele) in roots and shoots. In most seed plants, especially woody types, the endodermis is present in roots but not in stems.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
Cover of the first edition. Biology Today is a college-level biology textbook that went through three editions in 1972, 1975, and 1980. The first edition, published by Communications Research Machines, Inc. (CRM) and written by a small editorial team and large set of prominent "contributing consultants", is notable for its lavish illustrations and its humanistic approach.
Each stele is made up of diarch (having two strands of xylem [4]) and exarch (growing outward in) xylems. [ citation needed ] The steles are connected with the cortex by means of many tube-like structures called trabeculae , which are modified endodermal cells with casparian strips on their lateral walls.
Parenchyma is a versatile ground tissue that generally constitutes the "filler" tissue in soft parts of plants. It forms, among other things, the cortex (outer region) and pith (central region) of stems, the cortex of roots, the mesophyll of leaves, the pulp of fruits, and the endosperm of seeds.
I created the plant biology text currently in Stele. Originally both stele and stela pages talked about stone slabs. I combined thos two but didn't add any text. To my knowledge stele and stela can both refer to inscribed stone slabs but only stele is also a concept in biology. --Chino 05:59, 4 Nov 2004 (UTC)