By Alex L. Shigo (auth.), Professor Dr. Walter Liese (eds.)
This quantity contains the papers offered on the consultation on wooden items Pathology throughout the 2d overseas Congress on Plant Pathology on tenth - twelfth September 1973 in Minneapolis/USA. the subjects have been handled less than 4 heads, viz. interplay of Microorganisms in the course of wooden Decay, Bacterial Degradation of wooden, Decay of Resistant wooden and Enzymatic Mechanisms of decay strategy, through a dialogue consultation on Extension: an obli gation of all wooden items Pathologists •. because of the cooperation of the authors all of the papers will be compiled during this quantity. The convention gave an exact risk to debate extensive the foundations of wooden decay through microorganisms from a few of the angles. The chapters provide designated info at the present development and difficulties in wooden items pathology. they're for that reason gathered jointly during this quantity in order that humans attracted to this box can have speedy entry to the fabric and concepts offered. the subject of this consultation, the degradation of wooden by means of fungi and micro organism, has turn into an increasing number of vital over the past years. wooden is the single renewable usual source and uncooked fabric of guy in order that it needs to be preserved opposed to undesirable deterioration. however, its average decomposition doesn't result in any destructive items yet purely to carbondioxide and water. either facets were handled during this quantity. Hamburg, March 1975 Walter Liese members A.F.BRAVERY, development examine institution, Princes Risborough Laboratory, Princes Risborough, U.K.
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Extra resources for Biological Transformation of Wood by Microorganisms: Proceedings of the Sessions on Wood Products Pathology at the 2nd International Congress of Plant Pathology September 10–12, 1973, Minneapolis/USA
What could be naturally occurring antagonism was observed during a study on the durability of Pinus resinosa untreated sapwood stakes half buried in the ground at 4 areas of a test plot at Petawawa Forest Experiment Station near Chalk River, Ontario. The stakes were 1 m long and equal numbers of 2 or 4cm thickness were used. The buried portions showed moderate decay in 2 of the 4 areas after 2 months summer exposure and advanced decay occurred after 4 months. In contrast all the stakes in the other two areas appeared sound for the entire 5 month exposure period(Table 3).
Globosum, except that attack of earlywood was encouraged in the latter. ACKNOWLEDG:MENT Mrs Jeanette Drysdale is thanked for technical assistance. : Microbiological deterioration of organic materials. Its prevention and method of test. Bureau of Standards Circ. 188 (1948). : Microbiological breakdown of cellulose in the presence of alternative carbon sources. J. Sci. Food Agric. 19 (1965) 133-135. : The ecology of fungi infecting untreated sapwood of Pinus radiata. Canad. J. Bot. 46(12) (1968) 1577-1589.
Prod. J. 15(7) (1965) 255-259. ----Anatomical changes in wood cell walls attacked by fungi and bacteria. Bot. Rev. 36(1) (1970) 1-28. Succession of Microorganisms during Wood Decay A. KAARIK Royal College of Forestry Stockholm, Sweden 1. Introduction Succession of microorganisms, especially of macrofungi on different wood fractions, have been investigated over a long period of time, mainly by sporophore studies (Chesters 1950, Jahn 1962, Spaulding and Hansbrough 1944, Buchanan 1940. Stiwell 1959, Henningsson 1967) • Later, the successions of fungi on decayed wood were investigated by culture studies (Mangenot 1952, Basham 1959, Shigo 1963, 1965, Ueyama 1965, v.