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This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute?
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Home-based bird watchers might have mixed up a batch of nectar to attract the feathered objects of their affection.
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It's pretty easy, just mix sugar and water.
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But the real stuff is a lot more complex, nearly all nectars are laced with amino acids, and some contain alkaloids, like nicotine and caffeine.
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So what's the plants' motivation for producing such chemicals?
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"It's possible that this is an antimicrobial adaptation of plants, they're toxifying their nectar to protect it from spoilage by yeast or other microbes."
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Leif Richardson, an ecologist at the University of Vermont.
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He says the compounds might also be a chemical defense.
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"Maybe the compounds are deterrent to nectar robbers, who take nectar without pollinating."
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And yes, "nectar robbing is indeed a thing."
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But Richardson and his colleagues have come up with yet another function for nectar's chemicals: as medicine for bees.
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They found compounds in the nectar of wild tobacco, linden, and white turtlehead flowers that cut the numbers of a common gut parasite in bumblebees by as much as 80 percent.
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The results are in the journal Proceedings of the Royal Society B.
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The big unanswered question here is whether bees might actually self-medicate when they're sick.
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Preliminary work suggests they do.
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And if that notion holds true, farmers and home gardeners alike could boost bee health, simply by growing plants that serve up the right medicine.
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Thanks for the minute, for Scientific American's 60-Second Science. I'm Christopher Intagliata.
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1 / 17
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显示原文 =This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute?
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2 / 17
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显示原文 =Home-based bird watchers might have mixed up a batch of nectar to attract the feathered objects of their affection.
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3 / 17
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显示原文 =It's pretty easy, just mix sugar and water.
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4 / 17
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显示原文 =But the real stuff is a lot more complex, nearly all nectars are laced with amino acids, and some contain alkaloids, like nicotine and caffeine.
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5 / 17
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显示原文 =So what's the plants' motivation for producing such chemicals?
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6 / 17
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显示原文 ="It's possible that this is an antimicrobial adaptation of plants, they're toxifying their nectar to protect it from spoilage by yeast or other microbes."
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7 / 17
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显示原文 =Leif Richardson, an ecologist at the University of Vermont.
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8 / 17
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显示原文 =He says the compounds might also be a chemical defense.
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9 / 17
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显示原文 ="Maybe the compounds are deterrent to nectar robbers, who take nectar without pollinating."
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10 / 17
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显示原文 =And yes, "nectar robbing is indeed a thing."
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11 / 17
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显示原文 =But Richardson and his colleagues have come up with yet another function for nectar's chemicals: as medicine for bees.
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12 / 17
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显示原文 =They found compounds in the nectar of wild tobacco, linden, and white turtlehead flowers that cut the numbers of a common gut parasite in bumblebees by as much as 80 percent.
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13 / 17
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显示原文 =The results are in the journal Proceedings of the Royal Society B.
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14 / 17
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显示原文 =The big unanswered question here is whether bees might actually self-medicate when they're sick.
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15 / 17
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显示原文 =Preliminary work suggests they do.
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16 / 17
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显示原文 =And if that notion holds true, farmers and home gardeners alike could boost bee health, simply by growing plants that serve up the right medicine.
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17 / 17
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显示原文 =Thanks for the minute, for Scientific American's 60-Second Science. I'm Christopher Intagliata.
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- 单句循环：关
- 单句循环：×3
- 单句循环：×5
- 单句循环：∞