اثر آلودگي هوا بر تكوين بساك ميكروسپورزايي ، تكوين گرده و پروتيين هاي محلول گرده اي در گياه طاووسي

Air pollution effects on microsporogenesis, pollen development and pollen soluble in Spartium junceum L.(Fabaceae)

Abnormality of anther, the pollen number reduction and male sterility were stimulated under air pollution. Anther of Spartium junceum at different stages of development were collected from control (less polluted) and polluted areas (mainly SO, NO2, CO, HC, and Airborn Particulte Material, AAPM). Then structure of anther, walls and pollen were studied and compared. Groups of control pollen were exposed to Tehran polluted air at 10 and 20 days. Under polluted air, the anthers became abnormal and shrinked. The tapetum layer had a premature growth in pollen mother cell stage and a premature digestion at the tetrad stage. In some anther, pollen were fewer, smaller, shrinked and deformed compared to control. Exposure to gaseous pollutants caused collapse and thinning of the exine surface. Agglomereion of polluted particles on to pellen surface under humodity condition induced cellular material release. Protein content and SDS-PAGE patterns in polluted pollen did not show significant difference compared to control ones. Cytoplasmic material release increased in pollen collected of areas pollution.