Journal
MICROSCOPY RESEARCH AND TECHNIQUE
Volume 85, Issue 3, Pages 1056-1064Publisher
WILEY
DOI: 10.1002/jemt.23975
Keywords
anemophilous pollen; entomophilous pollen; morphological differences
Categories
Funding
- National Natural Science Foundation of China [30470106, 31270276]
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The study identified significant differences in the morphology of anemophilous and entomophilous pollen grains, including size, shape, exine thickness, and surface ornamentation, which may be helpful for preliminary identification of these two types of pollen.
In order to provide a palynological guide for the identification of insect-carrying pollen grains, we studied the pollen grains of 10 anemophilous species and 10 entomophilous species in the Beijing urban area using light and scanning electron microscopies. We found that anemophilous pollen grains are small, spheroidal, or oblate spheroidal, while entomophilous pollen grains are medium and oblate. Comparison of the exine thickness and surface ornamentation showed that anemophilous pollen grains have significantly thinner exine and smoother surface ornamentation than entomophilous pollen grains. The results also revealed pollen characteristics adaptive to different pollination types. Overall, our study indicated that pollen morphology might be helpful for preliminary identification of anemophilous and entomophilous pollen.
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