Also available in Digital Download

Running time: 14:05 minutes

 Winner of the 29th International AGROFILM Festival!

Announcing another amazing teaching video
from Professors Verreet and Klink!

Late blight caused by the oomycete Phytophthora infestans is the most serious disease of potato crops worldwide. As a major culprit of the Irish potato famine in the mid-nineteenth century, late blight has had a tremendous effect on human history. Elucidation of the life cycle of P. infestans by German botanist Anton de Bary is claimed as a founding moment of modern plant pathology.

Using computer animations blended with real-life video and time-lapse photography, this teaching video impressively illustrates the life cycle of P. infestans. Your students and extension audiences will gain a clear understanding of the development and epidemiological spread of this fungus-like pathogen and the nature of the devastating disease it causes.

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All stages of the disease cycle are explained in detail:  

Asexual Reproduction:

• Infected tubers as a source of inoculum
• Transmission of mycelium to seedling
• Formation of sporangiophores on leaves
• Detachment and spread of sporangia
• Direct and indirect germination
• Zoospore production and release
• Zoospore locomotion and encystment
• Leaf infection and mycelial growth
• Secondary sporulation and spread of disease
• Infection of tubers

Sexual Reproduction:

• A1 and A2 (opposite) mating types
• Formation of male and female gametangia
• Penetration of antheridium by oogonial initial
• Expansion of oogonium
• Meiosis and fertilization
• Formation of thick-walled oospore
• Dormancy period in soil
• Germination of activated oospore
• Release of zoospores

Potato Late Blight - The disease cycle of Phytophthora Video DVD-ROM

The DVD-ROM compatible with PC and Mac; Contains four video files representing different compression formats for use on both PC and MAC

Running time: 14:05 minutes

Potato Late Blight - The Disease Cycle of Phytophthora infestans DVD-ROM Terms of Use

Standard Limited Use License

The Potato Late Blight - The Disease Cycle of Phytophthora infestans DVD-ROM is protected by copyright and its use is limited solely to the individual purchaser. It may not be loaned, rented, transferred or otherwise shared with other individuals. You, the purchaser, may use the clips in the collection in your own personal, noncommercial work and teaching. This includes searching, viewing, and digitally projecting clips for presentations. No exported video clips may be distributed "as is" directly from the Collection. Rather, all exported clips must be encompassed in a larger application personally developed by the licensed user such as a Microsoft PowerPoint™ presentation.

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