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  • 00:08

    Hi guys, I'm Claire, host of this YouTube series and author of the website brilliantbotany.com.
    Hi guys, I'm Claire, host of this YouTube series and author of the website brilliantbotany.com.

  • 00:12

    Today I'm going to be talking about some really cool research into mosses, fertilization and
    Today I'm going to be talking about some really cool research into mosses, fertilization and

  • 00:15

    volatile compounds.
    volatile compounds.

  • 00:17

    You're probably familiar with plant-pollinator relationships.
    You're probably familiar with plant-pollinator relationships.

  • 00:19

    Pollinators, like bees, butterflies, bats or even lemurs, visit the flowers on angiosperms--flowering
    Pollinators, like bees, butterflies, bats or even lemurs, visit the flowers on angiosperms--flowering

  • 00:25

    plants--and transfer pollen between them.
    plants--and transfer pollen between them.

  • 00:27

    This allows that pollen to fertilize egg cells and further reproduction.
    This allows that pollen to fertilize egg cells and further reproduction.

  • 00:30

    Flowers often offer incentives, like nectar, for pollinators and evolved things like bright
    Flowers often offer incentives, like nectar, for pollinators and evolved things like bright

  • 00:34

    colors to attract their attention.
    colors to attract their attention.

  • 00:36

    Hummingbirds, for example, are drawn to bright red flowers, like torch lilies, and bees follow
    Hummingbirds, for example, are drawn to bright red flowers, like torch lilies, and bees follow

  • 00:40

    ultraviolet nectar guides when visiting flowers.
    ultraviolet nectar guides when visiting flowers.

  • 00:43

    Mosses, however, are not angiosperms, so they don't have flowers.
    Mosses, however, are not angiosperms, so they don't have flowers.

  • 00:46

    And if you'd like a quick intro to the moss life cycle, you can check out this video that
    And if you'd like a quick intro to the moss life cycle, you can check out this video that

  • 00:50

    I made a few weeks ago.
    I made a few weeks ago.

  • 00:51

    It has long been assumed that mosses are fertilized only with the help of water.
    It has long been assumed that mosses are fertilized only with the help of water.

  • 00:54

    When it rains, the moss sperm cells swim through the water using their two flagellum to get
    When it rains, the moss sperm cells swim through the water using their two flagellum to get

  • 00:58

    to egg cells and fertilize them.
    to egg cells and fertilize them.

  • 00:59

    Recent research has shown, however, that springtails and mites aid in fertilization of mosses,
    Recent research has shown, however, that springtails and mites aid in fertilization of mosses,

  • 01:03

    much like angiosperm pollinators.
    much like angiosperm pollinators.

  • 01:05

    A study by Todd Rosenstiel and his team, published in Nature, has even shown that mosses produce
    A study by Todd Rosenstiel and his team, published in Nature, has even shown that mosses produce

  • 01:10

    volatile compounds to attract microarthropods like springtails.
    volatile compounds to attract microarthropods like springtails.

  • 01:14

    The study looked at the moss Ceradon purpureus and springtails, tiny arthropods that live
    The study looked at the moss Ceradon purpureus and springtails, tiny arthropods that live

  • 01:18

    in leaf litter.
    in leaf litter.

  • 01:19

    Researchers found that the moss produced sex-specific volatile scents, meaning that the male moss
    Researchers found that the moss produced sex-specific volatile scents, meaning that the male moss

  • 01:23

    and the female moss produce different compounds.
    and the female moss produce different compounds.

  • 01:25

    In part of the experiment, they gave springtails the choice between male moss and female moss,
    In part of the experiment, they gave springtails the choice between male moss and female moss,

  • 01:29

    and found that springtails much preferred the compounds given off by female moss.
    and found that springtails much preferred the compounds given off by female moss.

  • 01:33

    And finally, researchers compared fertilization rates in samples with and without water spray,
    And finally, researchers compared fertilization rates in samples with and without water spray,

  • 01:37

    to simulate rain, or with and without springtails.
    to simulate rain, or with and without springtails.

  • 01:40

    Both water and springtails separately increased fertilization rates, though springtails more-so.
    Both water and springtails separately increased fertilization rates, though springtails more-so.

  • 01:44

    Having both water spray and springtails made the fertilization rates sky rocket.
    Having both water spray and springtails made the fertilization rates sky rocket.

  • 01:48

    What this means is that having both rain and microarthropods like springtails is the optimum
    What this means is that having both rain and microarthropods like springtails is the optimum

  • 01:52

    condition for fertilization in mosses.
    condition for fertilization in mosses.

  • 01:54

    This makes sense, since mosses grow in the leaf litter, where microarthropods live, and
    This makes sense, since mosses grow in the leaf litter, where microarthropods live, and

  • 01:57

    also in damp environments.
    also in damp environments.

  • 01:59

    This is exciting because we already have research that shows that some angiosperms give off
    This is exciting because we already have research that shows that some angiosperms give off

  • 02:02

    scents to attract pollinators, but research into this type of relationship in mosses is
    scents to attract pollinators, but research into this type of relationship in mosses is

  • 02:06

    new.
    new.

  • 02:07

    It's amazing as small as springtails, which are only a few millimeters long, and mosses
    It's amazing as small as springtails, which are only a few millimeters long, and mosses

  • 02:10

    can this complex of a relationship.
    can this complex of a relationship.

  • 02:12

    If you have any questions about mosses, plants or pollinators, please let me know.
    If you have any questions about mosses, plants or pollinators, please let me know.

  • 02:16

    This has been Brilliant Botany Episode Ten, thank you for watching.
    This has been Brilliant Botany Episode Ten, thank you for watching.

  • 02:18

    Don't forget to like and subscribe, and I'll see you next time.
    Don't forget to like and subscribe, and I'll see you next time.

All noun
author
/ˈôTHər/

word

writer of book etc.

Tiny Arthropods Helping Mosses!

1,101 views

Video Language:

  • English

Caption Language:

  • English (en)

Accent:

  • English (US)

Speech Time:

88%
  • 2:12 / 2:29

Speech Rate:

  • 207 wpm - Fast

Category:

  • Education

Intro:

Hi guys, I'm Claire, host of this YouTube series and author of the website brilliantbotany.com.
Today I'm going to be talking about some really cool research into mosses, fertilization and
volatile compounds.. You're probably familiar with plant-pollinator relationships.
Pollinators, like bees, butterflies, bats or even lemurs, visit the flowers on angiosperms--flowering
plants--and transfer pollen between them.. This allows that pollen to fertilize egg cells and further reproduction.
Flowers often offer incentives, like nectar, for pollinators and evolved things like bright
colors to attract their attention.. Hummingbirds, for example, are drawn to bright red flowers, like torch lilies, and bees follow
ultraviolet nectar guides when visiting flowers.. Mosses, however, are not angiosperms, so they don't have flowers.
And if you'd like a quick intro to the moss life cycle, you can check out this video that
I made a few weeks ago.. It has long been assumed that mosses are fertilized only with the help of water.
When it rains, the moss sperm cells swim through the water using their two flagellum to get
to egg cells and fertilize them.. Recent research has shown, however, that springtails and mites aid in fertilization of mosses,
much like angiosperm pollinators.. A study by Todd Rosenstiel and his team, published in Nature, has even shown that mosses produce

Video Vocabulary

/bəˈtwēn/

adverb preposition

in space separating things. at, into, or across space separating things.

/ˌəltrəˈvī(ə)lət/

adjective noun

(of electromagnetic radiation) having wavelength shorter than that of violet end of visible spectrum but longer than that of X-rays. ultraviolet part of spectrum.

/ˈpəbliSHt/

adjective verb

(of book etc.) prepared and issued for public sale. To prepare and make available a book magazine etc..

noun other verb

mixture of elements. Series of buildings that are walled or fenced off. constitute.

/ˈflou(ə)r/

noun other verb

part of plant consisting of reproductive organs. Plants with a pretty head, e.g. a rose. (Flowers) to emerge into full shape; to bloom.

/ˈanjēəˌspərm/

noun

plant of large group that comprises those that have flowers and produce seeds enclosed within carpel, including herbaceous plants.

/ˈfərdlˌīz/

verb

To add chemicals to produce larger, better plants.

noun verb

Picture that is pressed to copy it onto something. To give someone your right to a property.

/ˈfərdlˌīz/

verb

To make pregnant; to put sperm in an egg.

/ˌfərdləˈzāSH(ə)n/

noun

action or process of fertilizing egg, female animal, or plant, involving fusion of male and female gametes.

/ˈvälədl/

adjective noun

easily evaporated at normal temperatures. volatile substance.

/ˈvizidiNG/

adjective verb

(of person) on visit to person. To go to a place for a time, usually for a reason.

/ˈmēniNG/

adjective noun verb

expressive. Idea or thing represented by words or sentences. To express a particular idea or thought.