A team of Japanese researchers has captured real-time footage of plant communication

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According to a January 22, 2024 post on Lemmy.world, a team of Japanese researchers has captured real-time footage of plant communication

Plants communicate in a number of ways, including:

  • Sound Plants emit sounds at a frequency of 40 to 80 kilohertz. When condensed and translated into a frequency humans can hear, the noises are similar to the pop of popcorn being made or bubble wrap bursting. 
  • Substances Plants secrete substances below ground which allows them to absorb nutrients. Other plants can use their roots to taste these. Based on what they taste they can tell how strong and how far away other plants are. 
  • Pheromones Some plants release pheromones, which is a form of chemical communication. Most of the reported plant pheromones are involved in sexual reproduction. 
  • Root networks Plants can share many different resources including carbon, nitrogen, and other nutrients through their root networks. 

In 1901, Indian scientist Jagadish Chandra Bose was the first to prove that plants are living organisms. Bose’s invention, the Crescograph, showed how plants move. 

In 2013, Ian Baldwin and Jack Schultz from Dartmouth University discovered that seedlings of poplar and sugar maple release anti-herbivore phenols when placed in a growth chamber next to saplings with shredded leaves. 

In 2017, Gagliano and colleagues showed that plants can sense the sound of water vibrating via their roots. 

In March 2023, a study showed that many different plant species make ultrasonic sounds to communicate stress.

Here’s some more evidence that plants communicate:

  • Volatile organic compounds Plants release chemicals called volatile organic compounds (VOCs) into the air to warn other plants of danger. Neighboring plants can prepare to defend themselves before they are attacked. 
  • Electrical signaling Plants can use electrical signaling to communicate from their leaves to their stems and roots. 
  • Root exudates Plants secrete tiny amounts of chemicals called root exudates into the soil. These chemicals send signals to other living things in the root zone. 
  • Auxin Plants use the chemical auxin for cell-to-cell communication. 
  • Plasmodesmata Plants have specific mechanisms to exchange information between cells. For long-distance transport, plants use the conductive tissues xylem and phloem. For short-range movement of molecules, plants use apoplastic/transcellular and symplastic pathways. 

Yes, plant communication is real. Plants can communicate with other plants, animals, and people using chemicals and sound

Plants communicate with their surroundings by releasing volatile organic compounds (VOCs) into the air. These chemicals can be smelled by humans and can be used for different purposes. For example, when sagebrush is damaged by pests, it releases chemicals that warn nearby plants of danger. 

Plants can also communicate using electrical signals. When a plant is wounded, it emits electrical signals that can be transmitted to other plants that are touching it. For example, Venus fly traps and sensitive plants (Mimosa pudica) transmit electrical signals when touched. 

Plants can also communicate through their roots by secreting chemicals called root exudates into the soil. These chemicals send signals to other living things in the root zone

Here are some examples of plant communication:

  • Floral fragrances Plants use floral fragrances to communicate with pollinators. This fragrance can also be used as a signal for crossbreeding. 
  • Stress chemicals When plants are stressed, they release soluble chemicals from their roots into the soil. These chemicals are then absorbed by the roots of other neighboring plants. 
  • Thread-like fungi Plants can also send signals to other plants with the help of thread-like fungi that connect the plant’s root to the soil. 
  • Chemical signals Plants emit chemical signals that call out to insects to eat whatever is eating them. For example, the wild tobacco plant can identify the hornworm caterpillar by its saliva and then gives off a chemical signal that attracts the caterpillar’s enemies. 
  • Warning messages When an individual plant is attacked by a caterpillar, the plant sends warning messages to its plant neighbors. The warning messages could be in the form of odors or sounds. 
  • Volatiles underground Plants release volatiles underground to send a “come here” signal to fungi. Many fungi can stretch and gather nutrients, delivering it back to the plant in exchange for sugar the plant made through photosynthesis

Yes, plants can communicate with sound. Plants can emit ultrasonic vibrations of 20–100 kHz. They can release sound emissions from different organs and at different growth stages or in response to different situations

Plants can also respond to sounds. For example, a study found that plants emit popping sounds when they’re cut or when they become dehydrated or infected. Researchers say these noises might be their version of a call for help. 

Plants can also respond to human voices. In a study conducted by the Royal Horticultural Society, research demonstrated that plants did respond to human voices

Yes, plants can respond to human voices. However, plants don’t understand human language or consciously react to it. 

According to a study by the Royal Horticultural Society, plants grow faster when spoken to. The study also found that plants grow faster to the sound of a female voice than to the sound of a male voice. 

According to Frisella Nursery, many studies have shown that plant growth is influenced by sound. Some studies have found that at the average human conversational tone (70 decibels) there was increased production in plants. 

According to Dr. Hes, mild vibrations increase growth in plants while harsher, stronger vibrations have a negative effect. The vibrations improve communication and photosynthesis, which improves growth and the ability to fight infection. 

According to the California Academy of Sciences, plants can perceive light, scent, touch, wind, even gravity, and are able to respond to sounds, too

Some research suggests that speaking nicely to plants can support their growth, while yelling at them won’t. However, there is no consistent scientific evidence that talking or singing to plants helps them grow better or produce more fruit. 

Plants respond to the vibrations of nearby sound, which turns on two key genes inside of them that influence their growth. Plants also increase photosynthesis production in response to carbon dioxide, which is a by-product of human speech. 

According to a professor of environmental sciences at the University of Toledo, plants definitely respond to vibrations in their environment. These vibrations can cause plants to grow differently and become more resistant to falling over

Some say that talking to your plants can be good for you. Spending time with plants can be calming and promote good mental and physical health. Talking or singing to your plants can also help you pay more attention to them, which can help you notice when they need water or weeding. 

However, there is no conclusive evidence that talking to plants helps them grow. Some say that plants don’t benefit from being spoken to, even gently, because they don’t have a nervous system, emotions, or intellect. Others say that plants react favorably to low levels of vibrations, around 115-250hz being ideal.

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