In most Brazilian producer states, one of the main diseases of the passion fruit is collar rot caused by Fusarium solani. Little is known about the physiology of this pathogen from yellow passion fruit, which mainly involves the production of extracellular enzymes. The objective of this work was to verify, in individual and appropriate culture media, the production of the extracellular enzymes amylase, lipase, cellulase, proteases (caseinase and gelatinase), lacase (oxydase) and catalase by isolates of F. solani from yellow passion fruit. The experimental design adopted was an entirely randomized two-factor scheme (nine isolates and seven enzymes) with three repetitions. All the isolates of F. solani produced, in a semi-quantitative manner, the extracellular enzymes amylase, lipase, cellulase, caseinase (protease) and lacase. However, the amount of each enzyme produced was significantly different among the isolates. The extracellular enzymes gelatinase (protease) and catalase were produced in a small amount and in an equal manner by all the isolates of the fungus.
Passiflora sp; enzymatic activity; soil-borne plant pathogens
