Microscopy Primer
Light and Color
Microscope Basics
Special Techniques
Digital Imaging
Confocal Microscopy
Live-Cell Imaging
Microscopy Museum
Virtual Microscopy
Web Resources
License Info
Image Use
Custom Photos
Site Info
Contact Us

The Galleries:

Photo Gallery
Silicon Zoo
Chip Shots
DNA Gallery
Amino Acids
Religion Collection
Cocktail Collection
Screen Savers
Win Wallpaper
Mac Wallpaper
Movie Gallery

Phase Contrast Image Gallery

White Rust of Crucifers (Albugo candida)

The photomicrograph below illustrates a stained thin section of cabbage stem infected with white rust, a destructive disease of crucifers caused by the fungus Albugo candida. Also known as staghead, white rust is a disease that infects cruciferous plants (such as cabbage, broccoli, and kale) wherever they occur in the world.

The fungus responsible for white rust disease, Albugo candida, belongs to the phylum Oomycetes. This phylum also includes the downy mildews and water molds, which can parasitize living fish. These molds produce both fertilized and asexual spores. The asexual spores, zoospores, have two whip-like flagella that enable them to move about. Infections from these spores appear as pustules or blisters. The fertilized spores, termed oospores, grow into the plant tissues and cause abnormal growth of tissues, called stagheads.

As a plant disease, white rust is not generally a serious problem by itself. However, infections of downy mildew often occur in association with white rust when conditions are damp and cool, which can cause serious crop damage.


Questions or comments? Send us an email.
© 1998-2015 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Friday, Nov 13, 2015 at 01:19 PM
Access Count Since May 10, 2000: 31031
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: