Flowers come in a multitude of shapes and colors. Now, an international research team has proposed the novel hypothesis that trade-offs caused by different visitors may play an important role in shaping this floral diversity.
As well as bright colours and subtle scents, flowers possess many invisible ways of attracting their pollinators, and a new study shows that bumblebees may use the humidity of a flower to tell them about the presence of nectar, according to recent research.
People often thing of flowers as a bright and showy splash of contrasting colors. But some plant species actually produce two types of flowers: normal ones with a colorful appearance, and “runts” that are small, never open. Why do some plants produce small and unattractive flowers? Two researchers think they’ve figured out why, supporting a hypothesis dating back 150 years to Charles Darwin.
The origin of flowering plants famously puzzled Charles Darwin, who described their sudden appearance in the fossil record from relatively recent geological times as an “abominable mystery”. This mystery has further deepened with an inexplicable discrepancy between the relatively recent fossil record and a much older time of origin of flowering plants estimated using genome data.
A new study has analyzed one environment-sensitive genic male sterile (EGMS) line that exhibited fertility transition under specified environmental conditions.
From two seeds grew a thousand plants. Researchers used advanced cloning techniques to give the threatened Hill’s thistle a fighting chance. This cutting-edge propagation method could rejuvenate the population of other threatened and endangered plant species.