Why does fungal growth cause decline in pH values of media?
Best insight from top research papers
Fungal growth causes a decline in pH values of media due to the production of organic acids by the fungi . These organic acids are released as byproducts of fungal metabolism and can acidify the surrounding environment . The pH of the culture medium strongly influences fungal growth, sporulation, and metabolite production . Conventional culture media used for fungal growth studies have relatively low buffering capacities, leading to large changes in pH . The acidification of the media by fungi can vary depending on the fungal strain, its growth rate, the substrate, and environmental conditions . The decline in pH values can have significant effects on fungal growth and colony development . Understanding the impact of pH on fungal growth is important for the selection and cultivation of fungi in various applications .
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
| The paper does not provide an answer to the query. The paper is about using alkaline pH values to isolate dermatophytes and prevent overgrowth by mold. | |
| The paper does not provide an explanation for why fungal growth causes a decline in pH values of the media. The paper focuses on the effect of pH on the growth of ectomycorrhizal fungi collected from Pinus radiata plantations. | |
| The provided paper does not directly explain why fungal growth causes a decline in pH values of media. | |
107 Citations | The provided paper does not provide information on why fungal growth causes a decline in pH values of media. The paper primarily focuses on the evolution of bacterial and fungal growth media, exploring alternative nutrient sources and highlighting areas for future research. |
| The paper does not provide a specific answer to why fungal growth causes a decline in pH values of media. |
Related Questions
What is the effect of pH on Rhizoctonia?4 answersThe effect of pH on Rhizoctonia solani varies based on different factors. Research indicates that the mycelial growth of Rhizoctonia solani is influenced by pH levels, with optimal growth observed between pH 4.0 and 9.0, peaking at pH 5.6. Additionally, the study on Bacillus subtilis strains showed that the inhibitory effect on Rhizoctonia solani was most prominent during the stationary phase, suggesting a pH-dependent antagonistic activity. Furthermore, the study on the effects of soil pH on damping-off of sugar beet by R. solani highlighted that in vitro mycelial growth of the pathogen was optimal at pH 4.5–5.5, indicating a preference for slightly acidic conditions. Overall, pH plays a crucial role in influencing the growth and activity of Rhizoctonia solani, with varying effects observed across different studies.
How many pH level that grow in algae?5 answersAlgae can grow at various pH levels based on the species and environmental conditions. Research indicates that different algae species exhibit growth preferences at specific pH ranges. For instance, some acidophilic species like Coccomyxa sp., Euglena mutabilis, and Euglena gracilis thrive in more acidic conditions, while alkaliphilic species such as Thalassiosira pseudonana, Phaeodactylum tricornutum, and Chlamydomonas sp. prefer alkaline environments. Optimal pH values for various algae species range from 6.0 to 10.0, with different species showing distinct preferences. Maintaining suitable pH levels is crucial for maximizing algae growth and productivity, with pH 8 to 9 being identified as conducive for increased production and reduced invasion by competing organisms. Additionally, pH manipulation can impact lipid accumulation, biomass productivity, and even the quality of biodiesel produced from algae.
How does mold influence the ph value?5 answersMold can influence the pH value in different ways. Some compounds with antifungal activity lose their efficacy against mold contaminants as the pH increases, rendering them ineffective in neutral and alkaline conditions. In the case of Gigaspora margarita, low pH inhibits hyphal growth and decreases the polyphosphate (polyP) content in both hyphae and spores, restricting the functions of the AM fungi. Additionally, the pH value can affect the solubility of materials like white mineral trioxide aggregate (WMTA) and Biodentine (BD), commonly used in clinical applications. Both WMTA and BD exhibit higher solubility in acidic pH, which can jeopardize their sealing characteristics in procedures like perforation repair and blunderbuss canals. Therefore, mold can have an impact on pH levels, influencing the physiological and ecological processes of organisms like AM fungi and affecting the properties of materials used in various applications.
How pH affects trichoderma growth?5 answersThe pH level has a significant impact on the growth of Trichoderma fungi. Different studies have shown that Trichoderma strains exhibit varying responses to different pH levels. For example, T. harzianum strains showed outstanding capabilities to adapt to alkalinity stress. Another study found that the growth inhibition of a Fusarium sp. by Trichoderma was most effective at pH 6. Additionally, Trichoderma guizhouense NJAU4742 had significantly higher growth speed and enzyme activities under acidic conditions. The pH also plays a role in the interaction between Trichoderma and plants. Acidification by Trichoderma induced auxin redistribution in Arabidopsis root cap cells, leading to root tip bending and growth inhibition. Overall, these findings highlight the importance of pH in influencing the growth and interactions of Trichoderma fungi.
The effect of growth media on the mycellia growth of fungal pathogen?5 answersDifferent growth media have varying effects on the mycelial growth of fungal pathogens. For example, in the study by Bousset et al., the growth kinetics and pigment production of fungal species were found to depend on the media used. Similarly, Fletcher found that potato dextrose agar (PDA) was the most suitable growth medium for mycelium growth of Pleurotus ostreatus and Ganoderma lucidum, with different media resulting in different mycelium morphology and radial growth. Shabana et al. observed that V-8 medium was the best for sporulation of Alternaria solani isolates, while different media affected mycelial growth differently. Additionally, Oliveira et al. found that light conditions during fungal growth, such as white and blue light, influenced conidial production and germination speed of Metarhizium robertsii. Therefore, the choice of growth media can significantly impact the mycelial growth and other characteristics of fungal pathogens.
What is the effect of pH on fermentation?3 answersThe effect of pH on fermentation varies depending on the specific conditions and microorganisms involved. In the case of Clostridium autoethanogenum, controlling the pH at 5.8 during electro-fermentation resulted in higher substrate consumption and biomass concentration compared to applying an external potential. Similarly, in the study on hydrogen production by dark fermentation, the highest hydrogen production, COD removal rate, and nitrate reduction rate were achieved at pH 5. For the coupled process of Cr(VI) removal driven by henna fermentation, pH 9 was found to be optimum for Cr(VI) removal, with the highest specific removal rate achieved. In the ethanol-lactic type fermentation study, the sum of ethanol and lactic acid yield was highest at pH 4.0. Finally, in the production of lactic acid through simultaneous saccharification and fermentation, adjusting the pH to 8.5 resulted in higher lactic acid concentration and lower ethanol concentration.