ANGIOSPERM pollen grains have enzymes which are readily leached out by water. The release begins within minutes of immersion, and is not related to the germination of the grains and the growth of the ...

Smithsonian researcher Ingrid Romero studies fossil pollen to reconstruct ancient climates and predict future changes Erin Wunderlich Researcher Ingrid Romero holds a case full of pollen slides at the ...

An electron microscope image, colorized, shows different structures of pollen grains, including sunflower, morning glory and primrose. Dartmouth Electron Microscope Facility If pollen allergies are ...

Pollen grains are far more than allergens — they are also nature’s time capsules, preserving clues about Earth’s past environments for millions of years. Pollen’s tough outer shell enables it to ...

It's no secret that pollen plays a vital role in plant reproduction worldwide, including the production of food. But for decades, scientists have been puzzled about the variety of patterns on the ...

One hundred years ago, naturalists and other outdoor enthusiasts had the foresight to collect and preserve natural specimens unique to the Great Basin. Those collections have been entrusted to the ...

From pollen forecasting, honey analysis and climate-related changes in plant-pollinator interactions, analysing pollen plays an important role in many areas of research. Microscopy is still the gold ...

In a small village called El-Hamoul, surrounded by the green fields of Eygpt’s Nile Delta, a young girl gathered herbs from along the irrigation canal. She arranged similar flowers in neat rows on the ...