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Fungal Ice-Nucleating Proteins: A Groundbreaking Rain Discovery

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Fungal Ice-Nucleating Proteins: A Groundbreaking Rain Discovery

Generated: 2026-04-26 · API: Gemini 2.5 Flash · Modes: Summary

Fungal Ice-Nucleating Proteins: A Groundbreaking Rain Discovery

Clip title: Mushrooms Have an Ability to Control Rain According to New Study Author / channel: Anton Petrov URL: https://www.youtube.com/watch?v=3qYyhOjTtSk

Summary

This video explores the fascinating and surprising role of biological organisms, particularly fungi, in influencing Earth’s weather patterns, specifically rainfall. Building on previous discussions about fungi being among the first terrestrial life forms, the presenter introduces a new, even more “mind-blowing” discovery: certain fungi actively contribute to the formation of rain. This revelation challenges the traditional understanding of meteorological processes, bridging the gap between life on the ground and atmospheric phenomena.

The video first explains the fundamental process of rain formation, highlighting the concept of supercooled water in clouds needing “ice nucleating particles” (INPs) or “cloud condensation nuclei” (CCN) to crystallize into ice or rain. While physical particles like dust, soot from volcanoes, and sea salt are known to act as these seeds, they require extremely cold temperatures to be effective. The discussion then introduces a well-known biological rainmaker: Pseudomonas syringae, a bacterium that produces specific ice-nucleating proteins (INPs). These bacterial proteins can trigger ice formation at much warmer temperatures (around -2°C), causing frost damage to plants, which the bacteria then consume. When these bacteria are swept into the atmosphere, they act as efficient rain seeds, creating a “bioprecipitation cycle” that waters the plants they inhabit, inadvertently aiding their own propagation.

A groundbreaking recent study, published in Science Advances, reveals that fungi also produce highly effective ice-nucleating proteins. Unlike bacteria, these fungi, such as Fusarium and Mortierella species, secrete smaller, water-soluble INPs into the soil around them. These fungal proteins are even more efficient at traveling into the atmosphere and initiating ice crystallization at temperatures just below freezing. Intriguingly, genetic analysis suggests these fungi likely acquired this ability through horizontal gene transfer from bacteria, adapting it for their own survival. For fungi, this controlled ice formation appears to be a protective mechanism against flash freezing, safeguarding their delicate cells and, in turn, benefiting the plants they often live in symbiosis with by keeping the soil moist through increased rainfall.

The implications of this research are profound. It suggests a vast “bioprecipitation feedback cycle” where landscapes, particularly forests, are not merely passive recipients of weather but active participants in shaping it. By emitting water vapor and these biological INPs, forests can promote cloud formation and precipitation, which in turn supports more plant and fungal growth. This understanding could lead to more accurate weather prediction models and offers a non-toxic, biological alternative for cloud seeding, moving away from potentially harmful chemical methods like silver iodide. Ultimately, this discovery underscores the critical importance of conservation, reminding us that destroying forests means losing a powerful biological engine that drives regional rainfall and maintains the delicate balance of Earth’s climate in ways we are only just beginning to comprehend.

Video Description & Links

Description

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Hello and welcome! My name is Anton and in this video, we will talk about a surprising discovery about fungi…do they control the rain? Links: https://www.science.org/doi/epdf/10.1126/sciadv.aed9652 https://theconversation.com/how-hidden-soil-fungi-steal-bacterial-dna-to-control-the-rain-279618 https://www.pnas.org/doi/epdf/10.1073/pnas.2303243120 #fungi biology #science

0:00 Do fungi control the rain? 1:40 How rain usually forms 2:38 Biological rainmakers - bacteria 4:35 Fungi can do this too?! 5:25 Fungal proteins and why this is so important 6:20 Where these proteins came from 7:40 What this tells us and why this important for fungi 9:50 Conclusions and implications

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Credit: Mark Garlick www.markgarlick.com Bevan Weir - https://scd.landcareresearch.co.nz/Specimen/PDD_103391 CC BY 4.0 https://mycology.adelaide.edu.au/fungal-descriptions-and-antifungal-susceptibility/zygomycota-pin-moulds/mortierella-wolfii

Licenses used: https://creativecommons.org/licenses/by/4.0/ and relevant Creative Commons licenses

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anton petrov, science, physics, astrophysics, astronomy, universe, whatdamath, what da math, technology, space engine, anton, petrov, biology

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