Free-living insects are able to move between and feed from different plants in the wild, unlike their less mobile endophytic counterparts, which spend a large part of their lives in a restricted area of the plant, often inside the tissues. When plants are targeted by bugs that depend on them for food and shelter, they often rely on defence responses that deter their attackers. However, some insects manipulate these mechanisms to counter the plants’ defence and even create a better nutritional environment around feeding sites. Until now, it was believed that only endophytic insects employed this strategy. … more
The Plant List on going list of all known plant species
P1 Species seeds are from two parents of the same species or self pollination
— breed true
F1 seeds are hybrids created from two unrelated parents ( children )
— hardy crosses, usually vigorous, healthy plants, children usually look like the children
F2 are self pollinated F1s or pollinated by other F1s ( grandchildren )
— might look like parent, might look like mailman, most diverse, greatest diversity in this cross
F3 are self pollinated F2s or by other F2s ( great grandchildren )
— who knows? usually selected to strengthen an F1 trait
F4, F5, F6 can also be found
The ‘F’ is short for filia
Species seeds are the most expensive, each F? gets cheaper the farther you travel down the family tree
S seeds are self fertilized seeds that have been treated chemically, or otherwise, to create a mutation. It’s not an accepted botanical grading, but often used by hobbyists
On July 17, 2014, the world decided it wanted to learn the genomic secrets hidden in the beautiful little, floating water fern, Azolla filiculoides. Not only did they want to know, but they paid for it too – a whopping $22,160 from 123 backers – through a crowdfunding site called Experiment.com (Azolla, a little fern with massive green potential).
Four years later, they have what they paid for, and more! The project was backed at 147% of the budgeted goal, which allowed the researchers to sequence and analyze the first fern genome ever. With the extra funds, they could sequence a second fern, Salvinia cucullata. Their results appear this month in the journal Nature Plants (Fern genomes elucidate land plant evolution and cyanobacterial symbioses).. . . . (read more Fern-tastic!
Interesting, white flowers are white to attract pollinators at night, several orchids I’ve owned have a scent that is very strong after dark but barely there during the day.
We find that the floral scent of the orchid Gymnadenia conopsea differs between day and night, and the increase in scent from day to night is stronger in populations with nocturnal pollination. This is the first study to report genetic variation in floral scent emission rhythms within the same species, and this is an important first step to understand the evolution of floral scent.