heat stress – mycolab.ai

Effects of dietary Fibrafid as phytogenic supplementation in standard and nutrient-reduced diets on breast meat quality, carcass traits, histopathology, and feed efficiency in heat-stressed broilers

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This research tested a plant-based feed additive called Fibrafid in broiler chickens raised in hot conditions. When included at 0.25% in their diet, Fibrafid improved meat quality by increasing its ability to retain moisture and enhancing tenderness, while also supporting growth even when using lower-nutrition diets. The additive maintained healthy intestines and improved feed efficiency, offering a practical and sustainable solution for poultry farmers in hot climates.

Comparative analysis of genome-wide transcriptional responses to continuous heat stress in Pleurotus tuoliensis

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Researchers studied how oyster mushrooms respond to heat stress at the genetic level by analyzing which genes turn on and off when exposed to different temperatures. They found that at moderate heat (32°C), the mushrooms could maintain normal growth, but at severe heat (36°C), growth almost completely stopped. The study identified specific genes related to heat shock proteins and cell membrane composition that appear crucial for helping mushrooms survive heat, which could eventually help farmers grow heat-resistant mushroom varieties.

Analysis of Volatile Organic Compounds and Comparison of Heat Resistance Related Gene Expression in Pleurotus ostreatus Under Heat Stress

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This study examined how oyster mushrooms respond to high temperatures at different growth stages. Researchers found that young mycelium and mature fruiting bodies use different strategies to survive heat stress, which affects the flavor compounds they produce. Mycelium produces more of certain volatile compounds under heat stress, while fruiting bodies actually lose their characteristic mushroom flavor compound called 1-Octen-3-ol.

Genome-wide analysis of bZIP gene family members in Pleurotus ostreatus, and potential roles of PobZIP3 in development and the heat stress response

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Scientists identified 11 genes that code for special proteins called bZIP transcription factors in oyster mushrooms. One particular protein, PobZIP3, was found to help mushrooms survive high temperatures and grow faster. When researchers increased this protein in mushroom strains, the mushrooms became more heat-resistant and produced edible fruiting bodies more quickly, suggesting this discovery could help farmers grow oyster mushrooms more reliably.

Autophagy and the Mitochondrial Lon1 Protease Are Necessary for Botrytis cinerea Heat Adaptation

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Scientists studied how a fungus that causes gray mold disease adapts to heat stress by examining two key cellular processes: autophagy (cellular cleanup) and a mitochondrial protease called Lon1. They found that both processes work together to help the fungus survive high temperatures by removing damaged cellular components and maintaining healthy mitochondria. When either process was disrupted, the fungus became much more vulnerable to heat and could not survive as well.

Autophagy and the Mitochondrial Lon1 Protease Are Necessary for Botrytis cinerea Heat Adaptation

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Researchers studied how a common plant-damaging fungus called Botrytis cinerea survives high temperatures. They found that two cellular cleanup systems—autophagy (which recycles damaged components) and a mitochondrial protease called Lon1—work together to help the fungus survive heat stress. When either system was disabled, the fungus was much more sensitive to heat and showed increased cell death, suggesting these processes are essential for the fungus’s survival strategy.

iTRAQ-Based Quantitative Proteomic Analysis Reveals Proteomic Changes in Mycelium of Pleurotus ostreatus in Response to Heat Stress and Subsequent Recovery

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This study examined how oyster mushrooms respond to high temperatures using advanced protein analysis techniques. Researchers found that when mushroom mycelium was exposed to 40°C heat, it damaged cell membranes and changed the levels of hundreds of proteins. However, when the temperature returned to normal, the mushrooms could repair the damage and recover. Key proteins including heat shock proteins and stress-response enzymes played important roles in protecting the mushroom cells and helping them survive heat stress.

Integrated Transcriptomic and Proteomic Analyses Reveal Molecular Mechanism of Response to Heat Shock in Morchella sextelata

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Morels are delicious edible mushrooms, but growing them is challenging when temperatures get too high. Scientists studied two morel strains to understand how they respond to heat stress by examining their genes and proteins. They found that heat-tolerant strains activate special protective proteins and metabolic pathways, with one strain particularly good at activating a protein called Rsp5 that helps other protective proteins work better. These findings could help farmers grow better morels even as climate change makes temperatures warmer.

Construction of a heat-resistant strain of Lentinus edodes by fungal Hsp20 protein overexpression and genetic transformation

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Scientists successfully created a heat-resistant version of shiitake mushrooms by adding extra copies of a heat-protection gene from button mushrooms. The modified mushrooms can survive higher temperatures and recover better after heat stress compared to regular shiitake strains. This genetic improvement could help shiitake farming expand to warmer regions and times of year, potentially increasing production worldwide.

New insights into temperature-impacted mycovirus-fungus interactions regulated by a microRNA in Lentinula edodes

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When shiitake mushrooms are infected with a virus and exposed to heat stress, the virus replicates more aggressively, which makes the mushrooms more susceptible to heat damage and competitive fungi. Researchers discovered that a small regulatory RNA molecule called led-milR-21 plays a key role in this process by suppressing the mushroom’s heat defense mechanisms when the virus is present. This discovery is important because it shows how viruses can exploit heat stress to overcome fungal defenses, with implications for mushroom cultivation in a warming climate.

Research Keyword: heat stress