Thallus tip Structure and Matrix Development in Bryoria Fuscescens

SEM observations of the surface of branch tips of Bryoria fuscescens, before and after treatment to remove the matrix produced by the cortical hyphae, are described. Cortical hyphae are arranged in a simple, apical bundle, parallel to the long axis of the branch, which becomes, behind the apex, a ho...

Full description

Saved in:
Bibliographic Details
Published in:The Lichenologist (London) 1987-07, Vol.19 (3), p.295-305
Main Authors: Greenhalgh, G. N., Whitfield, A.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Bryoria fuscescens
Fundamental and applied biological sciences. Psychology
Lichenes
Plant cytology, morphology, systematics, chorology and evolution
Thallophyta
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:SEM observations of the surface of branch tips of Bryoria fuscescens, before and after treatment to remove the matrix produced by the cortical hyphae, are described. Cortical hyphae are arranged in a simple, apical bundle, parallel to the long axis of the branch, which becomes, behind the apex, a hollow cylinder containing the algal population. The cortical structure is less complex than that of Usnea subfloridana. Substantial amounts of extracellular matrix are produced and the significance of this is discussed.
ISSN:0024-2829
1096-1135
DOI:10.1017/S0024282987000264