摘要:

AbstractMansonone F (phytoalexin) production in elm callus induced by elicitors of Ophiostoma ulmi is affLited by cultural and experimental conditions. These factors include different fun gal isolates, fungal culture age, elicitor concentration, the time of elicitor treatment, the callus cu Ytured with or without light and the callus subculturing frequency.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00961.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

AbstractThe effect of naphthaleneacetic acid (NAA), benzylaminopurine (BAP), L‐glutamine (L‐gln), and combinations of these substances on mycelial growth ofPhaeolus schweinitziiwas studiedin vitro.NAA (1 mg × 1−1), L‐gln (500 mg × 1−1) and a combination of NAA with L‐gln inhibited the growth of fungal mycelium. BAP (1 mg × 1−1) enhanced the inhibitory effect of NAA while in combination with L‐gln it reduced the inhibito

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00962.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

AbstractYoung plants of 38Eucalyptusseed sources were inoculated in the laboratory with conidia ofCylindrocladium scopariumand C.clavatum. Susceptibility was principally assessed in terms of the severity of leaf spotting.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00963.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

AbstractFungal growth in spruce timber stored under low oxygen atmosphere. Fungal growth and species composition in Norway spruce timber (Picea abies) stored under an atmosphere with low oxygen concentration was monitored by isolation techniques. The results were compared with those from unprotected wood and from living trees. The role of potentially antagonistic fungi is discussed.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00964.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

AbstractThe germination of conidia ofG. abietinaon water agar reached the same germination percentage at 0°C as at 5 °C to 12.5 °C, but required more time. The fungus caused necrosis even at ‐ 4 °C in pine seed

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00965.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

AbstractInfluence of water status of oak trees (Quercus rubra) on the development ofPhytophthora cinnamomilesions was studied. On agar media or excised inner bark, growth ofP. cinnumomiwas reduced by low water potentials. In contrast, on voung saplings or mature oak trees the development ofP. cinnamomilesions was not affected during a period of water stress. But after the end of the water stress treatment, susceptibility of the young saplings toP. cinnamoniincreased.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00966.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

AbstractGremmeniella abietinagrew well in media with pectin as the sole carbon source. The fungus secreted at least one enzyme with polygalacturonase activity, and this was induced by addition of pectin to the culture medium.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00967.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

AbstractA method is described to collect wood samples axenically from standing trees by the use of a Pressler borer in conjunction with protective sterile jackets.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00968.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

AbstractA case of variability in Sphaero sis sapinea. Two isolates (type I and type II) ofSphaeropsis sqineawere isolated from the co lar of a decliningCedrus deo daain the South of France. Cultural characteristics on PDA and MEA as well as conidial dimensions were compared with those of types A and B of S.sapineadescribed to occur in North America.Type II was similar to type A in respect to cultural aspects and growth but distinctly different in conidial dimensions. Slower growing type I was similar to type B. However, type I grew faster on PDA, had smaller conidia and lacked microconidia. Single‐conidia isolates obtained from the four types showed stability of these characteristic

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1993.tb00969.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY