ATMOSPHERIC POLLEN OF MORACEAE IN THE CITY OF SAN LUIS, ARGENTINA

ANDREA CELESTE ISAGUIRRE; MARIA FLORENCIA NUÑEZ SADA; MARIA LAURA VAZQUEZ; MARTA MATILDE MOGLIA

Merlo San Luis

Otro; XXXV Reunión Científica anual de la Sociedad de Biología de Cuyo; 2017

Sociedad de Biología de Cuyo

The Moraceae family includes some of the most used trees in the cities, as ornamentals and also for their edible fruits. This familyincludes several genera of anemophilous plants that can cause skin reactivity and pollinosis as red (Morus nigra) and white (Morus alba)mulberries and the paper mulberry (Broussonetia papyrifera). In this work the Moraceae pollen content was analyzed for two years ofcontinuous aerobiological sampling, in the atmosphere of the city of San Luis, Argentina. Pollen samples were taken with a volumetricsensor Lanzoni (VPPS 2000) and were read with an optical microscope at 400 X. The biological content was identified throughpalynological atlases and with the pollen library belonging to Aerobiology´s laboratory. The pollination period extended from August toOctober. Comparatively with others pollen types Moraceae was the first most abundant in the atmosphere of San Luis. The maximumconcentration values were recorded in September, with a peak of 1393 pollen grains/m3of air, while from November to June it was lessthan 1 grain/m3of air. Moraceae pollen exceeded the threshold considered ?very high? for the whole of the trees. We recommended togradually abandon the use of Moraceae specialty the M. alba ?fruitless? and B. papyrifera for afforestation of the city, due to the allergyproblems it causes.