Contents I. Introduction 295 II. Evolution of the Plant Vascular System 295 III. Phloem
Development & Differentiation 300 IV. Molecular Mechanisms Underlying Xylem Cell …

Variation in xylem vessel diameter is one of the most important parameters when evaluating
plant water relations. This review provides a synthesis of the ecophysiological implications …

Early flowering plants are thought to have been woody species restricted to warm habitats,,.
This lineage has since radiated into almost every climate, with manifold growth forms. As …

Grafting is a common practice for vegetative propagation and trait improvement in
horticultural plants. A general prerequisite for successful grafting and long term survival of …

Large, majestic trees are iconic symbols of great age among living organisms. Published
evidence suggests that trees do not die because of genetically programmed senescence in …

Water transport in vascular plants represents a critical component of terrestrial water cycles
and supplies the water needed for the exchange of CO2 in the atmosphere for …

Cycads represent one of the most ancient lineages of living seed plants. Identifying genomic
features uniquely shared by cycads and other extant seed plants, but not non-seed …

Insular woodiness (IW)—the evolutionary transition from herbaceousness toward woodiness
on islands—is one of the most iconic features of island floras. Since pioneering work by …

For millennia, people have cut and joined different plant tissues together through a process
known as grafting. By creating a chimeric organism, desirable properties from two plants …

Secondary growth of the vasculature results in the thickening of plant structures and
continuously produces xylem tissue, the major biological carbon sink. Little is known about …