X-ray effect on the ultrastructure of the pollen grains of Pinus griffithii McCLELL

The transmission electronmicroscopical results of X-ray irradiated pollen grains of Pinus griffithii MCCLELL pollen grains are presented in this paper. Irradiation with CuKa X-ray, at 35 KV, 20 mA, during 5', 15' 35' and 60'. The sporopollenin biopolymer system is resistant to ir...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Kedves Miklós
Párdutz Árpád
Tóth Anita
Dokumentumtípus: Cikk
Megjelent: 1998
Sorozat:Plant cell biology and development 9
Kulcsszavak:Palinológia, Paleobotanika, Sejtbiológia - molekuláris - himalájai selyemfenyő
Tárgyszavak:
Online Access:http://acta.bibl.u-szeged.hu/47848
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490 0 |a Plant cell biology and development  |v 9 
520 3 |a The transmission electronmicroscopical results of X-ray irradiated pollen grains of Pinus griffithii MCCLELL pollen grains are presented in this paper. Irradiation with CuKa X-ray, at 35 KV, 20 mA, during 5', 15' 35' and 60'. The sporopollenin biopolymer system is resistant to irradiation similarly to that of Ginkgo biloba L. Subunits were not observed in contrast to the partial dissolutions method. But after 60' of irradiation molecular structures (sensu strictu) were observed in particular at the endexine/intine border. Microbial organisms were observed not only on the surface of the pollen grains, but within the ectexine, in the cavities of the infratectal layer, mostly in the alveolar system of the bladders. 
650 4 |a Természettudományok 
650 4 |a Biológiai tudományok 
695 |a Palinológia, Paleobotanika, Sejtbiológia - molekuláris - himalájai selyemfenyő 
700 0 1 |a Párdutz Árpád  |e aut 
700 0 1 |a Tóth Anita  |e aut 
856 4 0 |u http://acta.bibl.u-szeged.hu/47848/1/plant_cell_009_093-102.pdf  |z Dokumentum-elérés