'Pollen world of plants'-2

  • Jasdeep singh

Portulaca plant is also called as rose moss.It is grown as ornamental plant.Main feature of this plant is that it is having fleshy leaves,stem and branches.It is a dicot plant.Here i observed the pollens of this plant.

[caption id=”attachment_43968″ align=”alignnone” width=”300″] 1. Portulaca plant growing in my home.Its stamens are numerous, deep seated and hence, inserted.On touching it’s anthers, yellowish sticky powdery mass get attached to your finger.[/caption]

[caption id=”attachment_43976″ align=”alignnone” width=”225″] 2. Anther teased with the help of needle and yellow pollens oozed out.[/caption]

[caption id=”attachment_43975″ align=”alignnone” width=”225″] 3. Anther is bilobed and pollens are sticky in nature as even after teasing its anther lobes for appropriate time,the pollens did’nt dispersed and remain adhered.[/caption]

[caption id=”attachment_43974″ align=”alignnone” width=”225″] 4. Part of anther lobe zoomed.[/caption]

[caption id=”attachment_43980″ align=”alignnone” width=”300″] 5. These spherical structures seen here are the pollens of portulaca plant.We can see the thick exine covering very clearly here.[/caption]

[caption id=”attachment_43981″ align=”alignnone” width=”266″] 6. Here outer anther wall is visible made up of single layer of cells.And pollens are adhered to it.[/caption]

[caption id=”attachment_43973″ align=”alignnone” width=”225″] 7. Part of another stamen anther lobe showing mass of pollens .[/caption]

[caption id=”attachment_43978″ align=”alignnone” width=”300″] 8. Pollen tube arising from the pollen grain.[/caption]

[caption id=”attachment_43977″ align=”alignnone” width=”300″] 9. Here we can see the branched pollen tube coming from pollen.[/caption]

[caption id=”attachment_43971″ align=”alignnone” width=”225″] 10. Part of anther lobe showing its cellular structure .Filament is pinkish in colour.[/caption]

[caption id=”attachment_43969″ align=”alignnone” width=”272″] 11. Rounded, yellowish pollen grain seen at maximum zooming.[/caption]

[caption id=”attachment_43970″ align=”alignnone” width=”266″] 12.[/caption]

[caption id=”attachment_43982″ align=”alignnone” width=”300″] 13. Sketch of the pollen grain.[/caption]

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