Purple Stain ofCarica papaya

Publisher Website
Google Scholar
Abstract
A new strain of Erwinia herbicola, which produces an extracellular, water-soluble, purple pigment in culture, is the causal agent of purple-stain disease of papaya (C. papaya) in Hawaii [USA]. Disease incidence was highest during Jan. and Feb., when the pathogen was readily recovered from symptomless as well as purple-stained fruits. In vitro pigment production was greatest when bacteria were grown in liquid shake culture containing 0.5% sucrose and 1% peptone and buffered at pH 5.5 or lower. The pigment has absorbance peaks at 595, 575 and 580 nm in water, ethanol and pyridine, respectively.

This publication has 1 reference indexed in Scilit: