Year: 1972
Type: article
Abstract: The histology and fine structure of the transverse veins that connect the longitudinal veins in the leaf of wheat (Triticum aestivum L. cv. Heron) are illustrated and discussed. The transverse veins consist of a single sieve tube and vessel, and two files of vascular parenchyma cells. They lack the mestome sheath and parenchyma sheath that is present around longitudinal veins except where they make connection with longitudinal veins. The vascular elements of the transverse veins are connected to metaxylem and metaphloem of the longitudinal veins and these connections are illustrated in sections. The tracheary elements have an unusual pattern of wall thickening. Experiments with ferric chloride solutions reveal that the vessel wall may severely restrict passage of solutes from the transpiration stream to the free space of the mesophyll.
DOI: 10.1071/bi9720721
Authors: J Kuo, TP O'brien, S-Y Zee
Institutions: Monash University, University of Hong Kong
Language: English
Subfield: Global and Planetary Change
Field: Environmental Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2460338398