![](https://nthumb.tpgimages.com/mid2_com_img/1339/7978/TOP10175536.jpg)
Mallow pollen. Coloured scanning electron micrograph (SEM) of a mallow (Malva sp.) pollen grain on a pistil. The grain has a spiked outer wall (exine), which may assist in its dispersal by improving its adherence to pollinating insects. Each pollen grain contains a male gamete (reproductive cell) that is intended to fertilise an egg or ovule (female gamete), and initiate the formation of a seed for a new plant. Pistils hold a plant's female reproductive structures.
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Creative#:
TOP10175536
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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N/A
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No
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