LM and TEM investigations on experimentally altered pollen grains of Phoenix dactylifera L.
Fresh and partially degraded pollen grains with 2-aminoethanol, KMnOr, merkaptoethanol, and diluted glycerine (50%) were investigated with the LM and TEM method.The new results are the following: 1. The mounted pollen grains were observed in polar position and are opened. 2. Expansion and exudation...
Elmentve itt :
| Szerzők: | |
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2003
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| Sorozat: | Plant cell biology and development
15 |
| Kulcsszavak: | Közönséges datolyapálma, Palinológia, Sejtbiológia - molekuláris |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/47937 |
| Tartalmi kivonat: | Fresh and partially degraded pollen grains with 2-aminoethanol, KMnOr, merkaptoethanol, and diluted glycerine (50%) were investigated with the LM and TEM method.The new results are the following: 1. The mounted pollen grains were observed in polar position and are opened. 2. Expansion and exudation of the intine and the protoplasm was not observed. 3. The partial degradation revealed the biopolymer system of the sporopollenin not only at the infratectal layer of the ectexine but in the outer and inner part of the foot layer. 4. Regular pentagon biopolymer units were observed. The diameter of these units are characteristically smaller than that of Phoenix sylvestris investigated previously. 5. The ultrastructure of the intine particularly in the apertural area is characteristic. |
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| Terjedelem/Fizikai jellemzők: | 81-92 |
| ISSN: | 0866-5443 |