This video segment adapted from NOVA explains how flowers play a central role in the reproductive cycle of plants. Their striking array of colors, patterns, fragrances, and nectar all require lots of ...

Add Yahoo as a preferred source to see more of our stories on Google. Plant reproduction plays a vital role in our food systems and the balance of ecosystems, yet it remains a complex process. Plants ...

Reproductive isolation is essential for the process of speciation and much has been learned in recent years about the ecology and underlying genetics of reproductive barriers. But plant species are ...

Sex in the garden is more straightforward for the birds and the bees than it’s for the plants. Reproductive processes vary among flowering plants; for many, there is more than one option. When ...

Kress, W. John and Beach, J. H. 1994. "Flowering plant reproductive systems at La Selva Biological Station." In La Selva: Ecology and natural history of a neotropical ...

https://doi.org/10.2307/1552142 • https://www.jstor.org/stable/1552142 Copy URL In most alpine and arctic plants there is selection for early flowering because of ...

A gradient (red) in the concentration of the plant hormone auxin determines that only one of the eight nuclei in a plant's embryo sac will become an egg. (The blue island in the image is a cell ...

Terrestrial plants began making a permanent home on land from the sea at least 420 million years ago. Updated methodologies in genetic data research has determined this number could be as old as 500 ...

Background and aims The transition from outcrossing to selfing is a repeated pattern in angiosperm diversification and according to general theory this transition should occur quickly and mixed ...

A Stanford-led study reveals that rather than evolving gradually over hundreds of millions of years, land plants underwent major diversification in two dramatic bursts, 250 million years apart. The ...