How did Earth's earliest seed plants capture pollen to reproduce? A team of scientists has uncovered new clues by ...

Une théorie abondamment diffusée en ligne accuse les arbres mâles d’être responsables des allergies au pollen. L’occasion de ...

But many pollen grains can land on a stigma and germinate. So, how do plants ensure that each ovule is only penetrated by just one pollen tube? Using live cell microscopy along with special ...

This is where pollen grains land, sending their pollen tubes and gametes down into the heart of the flower to fuse and fertilize its ovules like tiny peas inside their pod. The ovules become seeds ...

En effet, après avoir produit ses ovules, le Ginkgo femelle reçoit du pollen que le ginkgo mâle produit en énorme quantité. Arrivé sur l'ovule, le grain de pollen germe et forme un tube pollinique ...

"While much research has focused on male pollen—given its sensitivity to environmental stress—this study sheds new light on the often-overlooked female side of reproduction. Successful grain ...

1989). Local climate and temperature determine the effective pollination period (the time in which the stigma is receptive to pollination, pollen tubes can grow in the style, and the ovule remains ...

ATLANTA — After a warm, breezy Sunday, the pollen count in Atlanta was measured at 3,028 grains per cubic meter, the highest so far this year. Pine, Oak, Birch, Hackberry, and Sweet Gum were the ...