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18 kwi 2013 · We summarize the strikingly diverse current applications of leaf vein research in multiple fields of science and industry. A unified core understanding will enable an increasing range of plant biologists to incorporate leaf venation into their research.
1 cze 2013 · This review summarizes current knowledge of interrelationships between the form and function of leaf venation and the evolution of Leaf venation patterns and refers to the topic of individual and intraspecific variation.
LEAF VEINS The internal connections of the leaf to the rest of the plant are through veins. Leaf veins are actually vascular bundles. Vascular bundles (recall from Chapter 4) are composed of xylem (to transport water) and phloem (to transport sugars). The pattern they make in leaves is often quite elaborate (Fig. 6.4).
Identify the main parts of a leaf. Compare petiolate and sessile leaves. Distinguish among alternate, opposite, and whorled phyllotaxes. Compare simple, pinnately compound, and palmately compound leaves. Compare parallel, pinnate, and palmate venation in leaves. Recognize common leaf margins and shapes.
We synthesize classical concepts and the recent literature on a wide range of aspects of leaf venation. We describe 10 major structural features that contribute to multiple key functions, and scale up to leaf and plant performance.
18 kwi 2013 · We first outline a simplified, flexible protocol for sectioning and removing the epidermis of small, difficult‐to‐image leaves for leaf vein studies.
The leaf blade is (usually) the flat, photosynthetic part of the blade. In eudicots, the leaf will have a central midvein (also called the midrib), with smaller veins branching off from there. This type of vein organization is called netted venation. The edge of the blade is the margin.
