Production ofErwinia chrysanthemi pectinases in potato tubers showing high or low level of resistance to soft-rot Corinne DorelNicole Hugouvieux-Cotte-PattatEwa Lojkowska Research Articles Pages: 511 - 517
Characteristics of the whole cell fatty acid profiles ofPseudomonas corrugate Felipe SiverioEmilio A. CarbonellMaría M. López Research Articles Pages: 519 - 526
Properties of a citrus isolate of olive latent virus 1, a new necrovirus G. P. MartelliM. A. YilmazR. Lafortezza Research Articles Pages: 527 - 536
Possible involvement of salicylic acid in systemic acquired resistance ofCucumis sativus againstSphaerotheca fuliginea Gian Guido ContiAlberto PianezzolaAnna Arnoldi Research Articles Pages: 537 - 544
Factors affecting the incubation period of dark leaf and pod spot (Alternaria brassicae) on oilseed rape (Brassica napus) C. X. HongB. D. L. Fitt Research Articles Pages: 545 - 553
Changes in specific virulence in Polish populations ofPhytophthora infestans: 1985–1991 Ludwik S. SujkowskiStephen B. GoodwinWilliam E. Fry Research Articles Pages: 555 - 561
Purification and serology of virions of impatiens necrotic spot tospovirus P. RoggeroG. AdamV. Lisa Research Articles Pages: 563 - 568
Distribution ofLeptosphaeria maculans in two fields in southern Ontario as determined by the polymerase chain reaction George S. MahukuRobert HallPaul H. Goodwin Research Articles Pages: 569 - 576
Cluster analysis of 36Globodera pallida field populations using two sets of molecular markers Rolf T. FolkertsmaKoen E. de GrootJohannes Helder Research Articles Pages: 577 - 584
Selection forMeloidogyne incognita virulence against resistance genes from tomato and pepper and specificity of the virulence/resistance determinants P. Castagnone-SerenoM. BongiovanniA. Dalmasso Research Articles Pages: 585 - 590
Lettuce chlorosis virus — A new whitefly-transmitted closterovirus James E. DuffusHsing -Yeh LiuRuhui Li Research Articles Pages: 591 - 596
Vegetative compatibility among isolates ofColletotrichum gloeosporioides from almond in Israel Talma KatanEzra Shabi Short Communication Pages: 597 - 600
The double-stranded RNA genome of maize rough dwarfFijivirus contains both mono and dicistronic segments Cristina Marzachì'Sara AntoniazziGuido Boccardo Short Communication Pages: 601 - 605