摘要:

AbstractViscum albumwas introduced in about 1900 into an area north of San Francisco, California. By 1984, the gross area covered by the parasite had spread to about 114 sq. km. The average distance of spread from the point of introduction was 5.8 km.Viscumoccurs on at least 22 hosts in California, the most common areAcer saccharinum, Malus sylvestris, Robinia pseudoacacia, Alnus rubra, Populus fremontii, andSalix lasiandra.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1986.tb01045.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractOn the seasonal release of Dothistroma conidia in Pinus radiata plantation in southern Chile. During 3 years continuous sporctrapping was performed in 5 to 8 years oldPinus radiataplantation near Valdivia (Chile). The maxima for the number of conidia as well as their germination occurred constantly in the first week of February, the number of trapped conidia was closely connected with the precipitation, except for the very first opening of the fruiting bodies.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1986.tb01046.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractStudies were made on the effect of bacteria and actinomycetes on growth and spore germination ofCylindrocarpon destructans. The effect of bacteria on growth of this fungus as well as on spore germination was statistically not significant. The actinomycetes in general inhibited or had no influence on growth and germination of conidia of C.destructans.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1986.tb01047.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractAn experiment on the effect of eight inoculum concentrations of basidiospores ofCronartium flaccidum, on development of symptoms onP. nigraspp.nigricansvar.austriaca, P. nigrassp.italica, P. nigrassp.lariciovar.calabrica(from Calabria and Corsica) showed that 60000 basidiospores/ml was the optimum concentration andP. nigrassp.lariciowas the most sensitive.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1986.tb01048.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractA study on biochemical mechanisms of the rubber tree aggression by two root rotting fungiRigidoporus lignosusandPhellinus noxiuswas carried out. The activity of eight enzymes and their spatial distribution in adult tap root tissues were measured. Finally their origin, host or parasite, and physiological signification in the pathogenic process were discussed.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1986.tb01049.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractHevea brasiliensis(rubber tree) differentiates defense reactions against root rot diseases caused byRigidoporus lignosusandPhellinus noxius. These reactions, described at molecular, cellular and histological levels, rarely enable the tree to resist the fungal attack. Trees which initiate new tissues only survive to the infection.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1986.tb01050.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

AbstractDouglas‐fir [Pseudotsuga menziesii (Mirb.) Franco] stumps infested with Phellinus weirii (Murr.) Gilb. were inoculated with pellets formulated from fermented barley and spores of three isolates of Trichoderma viride Pers.: Fr. After one year, Trichoderma spp. were isolated from stumps inoculated in June less frequently (12 %) than those inoculated in February (23 %) or in October (29 %). Isolations of Trichoderma spp. from stumps with advanced decay were more frequent (46 %) than from stained stumps (12 %) or from sound stumps (2 %). Isolation success was directly related to wood decay at point of sampling, nearness to source of inoculum, and nearness to stump surfac

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1986.tb01051.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

Books reviwed in this article:Schubert, R.:Bioindikation in terrestrischen Ökosystemen.Foster, R. G.; Rovira, A. D.; Gock, T. W.:Ultrastructure of the Root‐Soil Inter‐face.Nienhaus, F.:Viren, Mykoplasmen und Rickettsien, Parasiten an der Schwelle des Lebendigen.JülichW.:Die Nitchtblätterpilze, Gallertpilze.Windels, C. E.; Lindow, S. E. (eds.):Biological Control on the Phylloplane.Grosser, D.;Pflanzliche und tierische Bau‐und Werkholzschädlinge.Spaar, D.; Kleinhempel, H.; fritzsche, R. (Hrsg.):Diagnose von Krankheiten und Beschädigungen an Kulturpflanzen. Diagnosemethoden.Deacon, J. W.:Introduction to Modern Mycology.Jennings, D. H.; Rayner, A. D. M. (Hrsg.):The ecology and physiology of the fungal mycelium.Biology of Dwarf Mistletoes: World Directory of Forest Pathologists.World Directory of Forest Pathologists. Compiled by H. O. Batzerand D.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1986.tb01052.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY