01873nab a2200229 i 4500 acta47893 20260119122609.0 170710s2000 hu o 000 eng d 0866-5443 SZTE Egyetemi Kiadványok Repozitórium hun eng Kedves Miklós Chloroplast thylakoid membranes in the intine of ragweed pollen grains as a Possible constituent in the biosynthesis of its extreme allergenic antigens [elektronikus dokumentum] / Kedves Miklós 2000 87-92 Plant cell biology and development 12 During our experimental Transmission Electron Microscope (TEM) investigations on the partially dissolved ragweed pollen grains chloroplasts were found in the intine. Till this time chloroplasts or other kind of plastids were not observed in the pollen wall. On the surface of the thylakoid membranes different kinds of molecular organizations were observed which may be important in the biosynthesis of antigens. But as an alternative hypothesis it must be mentioned, that the products of assimilation are factors of extreme allergenic character of ragweed pollen grains. The accumulation of extreme allergenic antigens, mainly antigen E in the wall (intine) of ragweed pollen grains have been described by several authors. Direct contact come with the intine of the pollen grains and the mucosa of the human respiratory organs. In consequence of the body temperature and the moist surface of the respiratory passages pollen tube development begins and the antigens enter the human cells. Természettudományok Biológiai tudományok Palinológia - parlagfű, Sejtbiológia - molekuláris Párdutz Árpád aut http://acta.bibl.u-szeged.hu/47893/1/plant_cell_012_087-092.pdf Dokumentum-elérés