linkedin post 2019-11-23 05:59:26

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POLLINATOR SELECTION. "Flower structures can be used to limit the type of visitor to some extent, but such limitation is typically not absolute. In addition, flowers can attempt to obtain some pollinator specificity by using advertising signals that appeal only to certain pollinators and not others. Colors, patterns, scents and even acoustic or electrostatic cues are all known to affect the behavior of different pollinators in different ways." https://lnkd.in/dHD-ddW View in LinkedIn
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linkedin post 2019-11-23 05:55:09

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LUCK IN THE BIRDS AND BEES BUSINESS. "However, there are peculiar challenges that come with such an unusual sex life. Many animals, such as bees, butterflies, flies, birds and bats, might be opportunistically interested in nectar carbohydrates, and plants cannot know or see which ones are in the vicinity, nor can they accept or reject a visitor. They can only offer their commodities to a diverse army of potential visitors from where they stand, and try their luck." https://lnkd.in/dHD-ddW View in LinkedIn
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linkedin post 2019-11-23 05:51:50

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SURROGATE PARTNERS. "This means that the morphology of angiosperm sex organs (flowers), rather than fitting those of the opposite sex, must generate a lock-and-key fit with the animals that visit them. These visitors do not normally come for sex; instead they are paid for their services, typically by means of sugary nectar or surplus pollen. Plants advertise these rewards with showy displays to assist pollinators in finding them." https://lnkd.in/dHD-ddW View in LinkedIn
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linkedin post 2019-11-23 05:49:00

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SEXUAL MESSENGERS. "Plants are immobile, and therefore they cannot choose their own sex partners. To cope with this handicap, several lineages of plants have invented a trick to facilitate the directed transfer of gametes: harnessing animals as go-betweens. This is known in some gymnosperms and even mosses, but it is in the angiosperms where animal pollination is most commonly encountered and where, in many cases, it has evolved exquisite complexity." https://lnkd.in/dHD-ddW View in LinkedIn
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linkedin post 2019-11-23 05:44:02

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FRAGMENT FROM NATURE contemplates plant-pollinator interactions for this and next weekend. The emergence of green plants on Earth changed the world by providing an abundant food source, a habitat, and an ecosystem for nested hierarchies of diverse creatures. Key amongst these were the pollinators that co-evolved with plants, and permitted their complex reproductive cycles. This complex mutualistic co-evolution of flowering plants and pollinators has been pieced together over time and tells the story of how evolution is more about cooperation than competition. View in LinkedIn
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linkedin post 2019-11-22 06:06:33

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PRION-LIKE PROTEINS. “Long-term Memories Are Maintained by Prion-like Proteins. As long as these aggregates are present, Kandel says, long-term memories persist. Prion aggregates renew themselves by continually recruiting newly made soluble prions into the aggregates. "This ongoing maintenance is crucial," said Dr. Kandel. "It's how you remember, for example, your first love for the rest of your life." https://lnkd.in/dgF6U_j View in LinkedIn
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linkedin post 2019-11-24 06:47:37

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THREE APPROACHES. "Genetic analyses of plant-pollinator interactions can be roughly divided into studies that document candidate genes and quantify pollinator response to manipulation, those that explore genetic pathways and mechanisms of floral traits and studies that seek to understand the evolutionary history of species interactions, such as adaptive radiations of plants and their pollinators." https://lnkd.in/dHD-ddW View in LinkedIn
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linkedin post 2019-11-22 06:04:55

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MOLECULES MORPHING INTO MEMORIES. “Efforts to discover how neurons make memories have long confronted a major roadblock: Neurons are extremely sensitive to any kind of disruption, yet only by probing their innermost workings can scientists view the molecular processes that culminate in memories.” https://lnkd.in/dcQaUQX View in LinkedIn
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