Life Cycle of Phytophthora ramorum - Forest Phytophthoras of the ...

More documents

Recommendations

Info

Phytophthora spore stages • Phytophthora thrives in wet conditions • Spores are spread in irrigation water, streams, rain, and wind. • Many P. ramorum infections initiated by sporangia and zoospores • Chlamydospores can persist in soil and leaf litter • Sexual oospores are resistant to damage Sporangia containing swimming zoospores Chlamydospores Oospores (P. infestans)
Chlamydospore germination after 24 hrs In‐vitro germination is low, between 3‐13% under optimum conditions Smith, Aaron L.; Hansen, Everett M. 2008. The maturation and germination of Phytophthora ramorum Chlamydospores. In: Frankel, Susan J.; Kliejunas, John T.; Palmieri, Katharine M., tech. coords. 2008. Proceedings of the sudden oak death third science symposium. Gen. Tech. Rep. PSW‐GTR‐214. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. pp. 451‐454.
Page 1 and 2: Life Cycle of Phytophthora ramorum
Page 3 and 4: Phytophthora is not a fungus Eukary
Page 5: Some economically important species
Page 9 and 10: Zoospores Zoospore release is stimu
Page 11 and 12: P. ramorum genetics • Two mating
Page 13 and 14: P. ramorum genotypes Percent of sam
Page 15 and 16: Genotype analysis Repetitive elemen
Page 17 and 18: How P. ramorum spreads • Water: w
Page 19 and 20: Spread by animal vectors Snails - c
Page 21 and 22: Foliar hosts Epidemiologically impo
Page 23 and 24: The soil phase of P. ramorum • Pr
Page 25 and 26: Water Possible pathway in water: De
Page 27 and 28: Some invasive plants are low risk f
Page 29 and 30: Results of t-tests on F1 scores fro
Page 31 and 32: Other oomycete species found in soi
Page 33 and 34: Clade 6 Phytophthoras • Soilborne
Page 35 and 36: Clade K Pythiums Intermediate betwe
Page 37 and 38: Nursery Critical Control Points Inc
Page 39 and 40: Clean pots Steam sterilize or hot w
Page 42 and 43: P. ramorum can often be found in ru
Page 44 and 45: Organic soil treatments • Mulches
Page 46 and 47: On the web • Visit our website: h

Life Cycle of Phytophthora ramorum - Forest Phytophthoras of the ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?