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Comparison of pectic enzymes in resistant and susceptible mints infected by Verticillium dahliae

Creator:

Highley, Terry L.

Abstract:

Verticillium dahliae Kleb. incites a vascular wilt disease of mints. Susceptible Mentha piperita L. , resistant M. crispa L., and intermediate hybrid 148 were used to study 1) the site of differential resistance and 2) the role of polygalacturonase (PG) in the disease syndrome. Many more V. dahliae propagules were...

Resource Type:

Dissertation
Nature of resistance to Verticillium dahliae Kleb. in strains of peppermint (Mentha piperita L.) developed by irradiation

Creator:

Sherrod, Leslie Lynn, 1940-

Abstract:

Verticillium dahliae Kleb. causes a wilt disease of peppermint. Attempts to control the disease by soil fumigation, crop rotation, flaming of stubble, and deep plowing have met with only limited success. Development of resistant varieties through conventional breeding procedures is difficult because commercial peppermint is male-sterile. Several strains of commercial...

Resource Type:

Dissertation
Production of polygalacturonase and macerating enzymes by Phoma menthae

Creator:

Melouk, Hassan Aly

Abstract:

The fungus Phoma menthae Strasser causes black lesions and cankers on stems and rhizomes of Mentha piperita L. The purpose of this thesis was to: 1) study the production of polygalacturonase (PG) and macerating enzymes (ME) by P. menthae in vivo and in vitro, 2) study the effects of phenolic...

Resource Type:

Dissertation
Inactivation of Verticillium dahliae in peppermint stems by propane gas flaming

Creator:

McIntyre, John Lee

Abstract:

The fungus Verticillium dahliae Kleb. causes a wilt disease of peppermint, Mentha pipertita L. Propane flaming of peppermint stubble is widely used to control Verticillium wilt in the Willamette Valley of Oregon, but little is known about the temperature required for effective control of the fungus. The purposes of this...

Resource Type:

Masters Thesis