College – Vellalar
College for Women (Autonomous)


 Principal
Investigator – Dr. S. Sharmila


 Project Assistants – E.K. Ramya, S. Mownika.


 I have observed the pollen grains of
 
 Adhatoda vasica, Tecoma stans and Solanum trilobatum
 
 through foldscope.


 
 Pollen grains
 


 Pollen grains represent the male portion of the reproductive process in plants and trees. These tiny bodies are swirling in the air and on the legs of insects so that they can join the female part of the plant to create a new seed. This important process is known as fertilization.


 
 Pollen – 1:
 
 Adhatoda vasica
 
 Nees.
 
 


 Radially symmetrical pollen grains view through the foldscope

<div class="wp-block-image">
 <figure class="aligncenter is-resized">
 <img alt="IMG_20190223_122926" class="wp-image-135568 gcloudimg" data-attachment-id="135568" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"Redmi 4","caption":"","created_timestamp":"1550924966","copyright":"","focal_length":"3.68","iso":"699","shutter_speed":"0.04","title":"","orientation":"0"}' data-image-title="IMG_20190223_122926" height="287" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_135566/IMG_20190223_122926.jpg" width="215"/>
 </figure>
</div>

 
 Pollen – 2:
 
 Tecoma stans
 
 Linn.
 


 Bilateral symmetrical pollen grains

<div class="wp-block-image">
 <figure class="aligncenter is-resized">
 <img alt="IMG_20190223_124120" class="wp-image-135587 gcloudimg" data-attachment-id="135587" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"Redmi 4","caption":"","created_timestamp":"1550925680","copyright":"","focal_length":"3.68","iso":"112","shutter_speed":"0.01","title":"","orientation":"0"}' data-image-title="IMG_20190223_124120" height="300" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_135566/IMG_20190223_124120.jpg" width="256"/>
 </figure>
</div>

 
 Pollen – 3:
 
 Solanum trilobatum
 
 Linn.
 


 Radially symmetrical pollen grains

<div class="wp-block-image">
 <figure class="aligncenter is-resized">
 <img alt="IMG_20190223_130714" class="wp-image-135590 gcloudimg" data-attachment-id="135590" data-comments-opened="1" data-image-meta='{"aperture":"2","credit":"","camera":"Redmi 4","caption":"","created_timestamp":"1550927234","copyright":"","focal_length":"3.68","iso":"124","shutter_speed":"0.03030303030303","title":"","orientation":"0"}' data-image-title="IMG_20190223_130714" height="313" src="https://storage.googleapis.com/microcosmosdelta.appspot.com/images/transfer_135566/IMG_20190223_130714.jpg" width="249"/>
 </figure>
</div>

POLLEN GRAINS UNDER FOLDSCOPE

VINOVINOTHINI

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