摘要:

AbstractThe aggression ofHevea brasiliensisroots by two root‐rot fungi,Rigidoporus lignosusandPhellinus noxiusis studied at cellular level. Ultrastructural observations reveal the root penetration and tissues colonization by the fungal hyphae, showing clearly alteration in the host cell wall, leading to the root decay. This paper describes the different mechanisms used by these two fungi in degrading lignified and non lignified tissue

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1987.tb00722.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractThe effects of chlorine water on mesophyll cells of Scots pine (Pinus sylvestris) were studied with light and electron microscopy. The treatment caused necrotic flecks formed by collapsed cells. Less injured cells showed increase in number of plastoglobuli, swelling of the thylakoids and vacuolization of the cytoplasm.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1987.tb00723.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractInvestigations of plant disease fungi isolated from healthy and affected tissues of young trees in subalpine reforestations indicate that tree damages cannot be traced back primarily to microorganisms.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1987.tb00724.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractThe conventional method of testing susceptibility toXanthomonas populiby means of leaf‐scar inoculation in September is compared with stipule‐scar inoculation in spring. A method for evaluating the resulting disease expression is presen

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1987.tb00725.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractThree collections ofMelampsora larici‐populinaKleb. originating from Belgium, France and the Netherlands were compared for their pathogenicity on eleven poplar clones. Qualitative type reactions suggest the existence of two pathogenic races designated E1 and E2. E2 is able to infect some clones previously considered to be resistan

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1987.tb00726.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractThe pathogenicity ofLophodermium pinastri, L. conigenumand L.seditiosumon 14‐month old transplants was investigated in Scotland. WhileL. seditiosumwas found to be a serious pathogen,L. conigenumandL. pinastriwere not. Under outdoor conditions,L. seditiosumwas found to kill needles five months after inoculatio

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1987.tb00727.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

摘要:

AbstractInhibition of butt rot causing Basidiomycetes and of Gremmeniella abietina by Bacillus subtilis. A zone of inhibition was observed when the fungi were inoculated into the test plates with malt agar either together withB. subtilis(fast growing Basidiomycetes) or two weeks beforeB. subtilis(slow growing fungi). With some of the fast growing Basidiomycetes a zone of inhibition was observed only during the early growth phase.Sparassis crispa, either not growing or with restricted growth when transferred to the plates together withB. subtilis, completely suppressed the Bacillus culture when inoculated into the plates two weeks beforeB. subtilis.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1987.tb00728.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1987.tb00729.x

出版商:Blackwell Publishing Ltd    

年代:1987

数据来源: WILEY