By W. Merrill (auth.), Professor Dr. Robert A. Blanchette, Professor Dr. Alan R. Biggs (eds.)
ISBN-10: 3662016427
ISBN-13: 9783662016428
ISBN-10: 3662016443
ISBN-13: 9783662016442
For the earlier decade, it's been obvious to either one of us reference textual content overlaying all features of tree safeguard mechanisms to fungi was once lacking, wanted and lengthy past due. this sort of publication would supply a transparent, entire evaluate of the way dwelling roots, stems and leaves reply to fungal pathogens. the necessity for any such publication grew to become in creasingly transparent to us from our conversations with one another, in addition to from our interactions with scholars and co-workers who wanted a sourcebook containing stories of morphological, biochemical and physiological facets of host-parasite interactions in timber. in the course of a box journey backed through the woodland Pathology Committee of the Ameri can Phytopathological Society, on a bus from one web site to a different, we determined to take the accountability to organize a ebook of this kind and started to devise its composition. To competently deal with the subject of this publication as we had expected it, we believed that well-illustrated chapters have been wanted that allows you to mirror the $64000 advances made via the numerous investigators who've tested the anatomical and physiological adjustments that happen whilst bushes are attacked through fungi. we're thankful to Dr. Tore Timell, the wooden technological know-how editor for Springer-Verlag, for helping our efforts and for supplying an street to post the sort of profusely il lustrated volume.
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Extra info for Defense Mechanisms of Woody Plants Against Fungi
Example text
When oligosaccharides from both the fungal and plant walls are used as a treatment, their effect on the production of phytoalexins is synergistic. Many other substances of host or microbial origin may be involved in the elicitation of defense reactions in plants. Traumatin, trans-2-dodecenedioic acid, or the oxidation product of its aldehyde, 12-oxo-trans-10-dodecenoic acid, have been found in healthy and wounded bean cells (Zimmerman and Coudron 1979). The eicosapolyenoic acids, arachidonic acid and eicosapentaenoic acid, are abundant in the lipids of Phytophthora infestans and related Oomycota (Bostock and Stermer 1989).
Many important and serious diseases of trees are caused by pathogens that initiate infections at wounds caused by insects, humans, fire, lightning, wind, hail, animals, and nutritional and physiological disorders. Therefore, it is possible that more precise information about wound responses could lead to innovative control measures based on a better understanding of the chronology of the wound response, how wound response may be influenced by external factors, or how the wound response could be modified for improved disease control.
Factors influencing the anatomical co-mingling of the new vascular cambia as the calliJS ribs converge on the center of the wound from the perimeter are not understood. It appears that complete closure is prevented if the vascular cambium turns inward. The periderm on the callus surface may prevent physically the co-mingling of vascular cambia in this situation, thus leading to a "bark inclusion", visible as a fine crack between the converged callus ribs. An incompletely closed wound may provide an excellent environment for fungal pathogens and it is possible that pathogenic microorganisms influence the direction of growth of new vascular cambia.
Defense Mechanisms of Woody Plants Against Fungi by W. Merrill (auth.), Professor Dr. Robert A. Blanchette, Professor Dr. Alan R. Biggs (eds.)
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