POLYGALACTURONASE IN POLLENS

Survey of airborne pollens in Seoul, Korea.

The daily pollen counts in the air of Seoul, Korea were measured using a rotorod sampler from June 1990 to July 1992. Two distinct pollen periods were noted: tree pollens such as alder, poplar, willow, oak and pine appeared in the spring from March to May, and weed pollens, such as Artemisia spp., Ambrosia spp. and Hop japanese appeared in the autumn from August to September. Various kinds of g...

Polygalacturonase of Erwinia carotovora.

The polygalacturonase, clearly differentiated from polygalacturonic acid trans-eliminase, produced in the culture fluid of Erwinia carotovora was purified 56-fold by means of acetone precipitation, acetate butfer extraction, and two successive treatments by chromatography on carboxymethyl cellulose. The purified enzyme is specific for nonmethoxylated polygalacturonic acid. It shows an optimum p...

Polygalacturonase in normal and abnormal tomato fruit.

Common allergenic pollens, fungi, animals, and arthropods.

Certain plants produce prodigious amounts of pollen. A single plant can produce 1 million to several million pollen grains in a day. In general, brightly colored flowering plants are of little clinical importance in inhalant allergy because their pollen is designed to be carried by insects (entomophilous) rather than by the wind (anemophilous). Many grasses, trees and weeds produce sufficient q...

Pollen allergic disease: pollens and its major allergens.

Patients with grass pollen allergy, commonly called pollinosis, often present reactivity to pollen allergens from a number of grass species due to cross-reactivity of IgE antibodies to pollen proteins present in pollen grasses. In this context, Italian rye grass (Lolium multiflorum) pollen of the Poaceae family cultivated in Southern Brazil has been considered a major sensitizing agent in patie...