Yeast immobilization in carrier particles of plant origin: an electron-microscopic study (original) (raw)

Microbiology, 1995

Abstract

ABSTRACT Localization of immobilized cells of the yeast Saccharomyces cerevisiae in the particles of a carrier derived from the duckweed Wolffia arrhiza was studied by scanning electron microscopy. Yeast cells were generally immobilized inside the carrier particles, which consisted of cell-wall frameworks and remained cell-structured after protoplasm extraction. Moreover, the carrier particles made from W. arrhiza retained morphological and anatomic structure typical of the intact plant. This ensures a high degree of compartmentalization and, hence, efficient immobilization of yeast cells. These particles were shown to contain various morphological structures, providing for entry, compartmentalization, and exit of yeast cells. The described carrier particles are suggested as models for studying compartmentalization of symbiotic microorganisms in plant tissues.

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