We studied the effect of apatite amendment on ectomycorrhizal (EM) mycelial biomass production and species composition in a phosphorus-poor spruce forest using sand-filled mesh bags. Control and apatite-amended bags were buried in pairs in the lower part of the organic horizon for one growth season. DNA extraction, PCR of the ITS region, cloning and random sequencing were used to examine the fungal species composition in each bag. Sequences were identified by comparison with the UNITE database and GenBank. Our study confirmed previous results that the major fungal ingrowth in mesh bags was of EM origin. On average 13 species were detected in each bag. Tylospora fibrillosa, Amphinema sp., Tomentellopsis submollis, and Xerocomus badius made up almost 80% of the EM sequences. High biomass was related to increased dominance of specific species. There were no statistically significant differences in biomass production estimated from PLFA 18:2omega6, 9, or between fungal communities of apatite-amended and control bags estimated from DNA after one growth season. The potential of the mesh bag method in studies of functional diversity of EM mycelia in the field is discussed.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.mycres.2007.11.008 | DOI Listing |
Sci Rep
January 2025
Center for Research and Conservation of Biodiversity, Department of Environmental Biology, Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 25-406, Kielce, Poland.
Our understanding of the basic relationships of microbiota associated with flowers is still quite limited, especially regarding parasitic plant species. The transient nature of flower parts such as pistil stigmas provides a unique opportunity for temporal investigations. This is the first report of the analysis of bacterial and fungal communities associated with the pistil stigmas of the lucerne parasite, Orobanche lutea.
View Article and Find Full Text PDFZ Naturforsch C J Biosci
January 2025
Armauer Hansen Research Institute, P.O. Box 1005, Addis Ababa, Ethiopia.
, known as "Dhumuugaa" in Afan Oromo and "Sensel" or "Smiza" in Amharic, is traditionally used to treat ailments such as scabies, fever, asthma, diarrhea, malaria, and more. This study explored the chemical composition and biological activity of its extracts and isolated compounds. The essential oils were extracted using the hydrodistillation method, and their chemical composition was evaluated using GC-MS.
View Article and Find Full Text PDFEnviron Res
January 2025
Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain. Electronic address:
The negative effects associated with cyanobacterial blooms are of particular concern in protected ecosystems, as these areas are ecologically significant and attract a high number of visitors. This study aims to explore the cyanobacterial communities and associated toxicity in three reservoirs located within a Mediterranean National Park with a compromised situation at basin-level. Our results demonstrate the occurrence of dense toxic blooms containing microcystins (reaching values close to 280 μg L) and low levels of anatoxin-a and saxitoxins (up to 0.
View Article and Find Full Text PDFNeuroimage
January 2025
Department of Neuroscience, Monash University, Melbourne, VIC, Australia; Gastroenterology, Immunology, Neuroscience (GIN) Discovery Program. Electronic address:
Persistent post-surgical pain (PPSP) occurs in a proportion of patients following surgical interventions. Research suggests that specific microbiome components are important for brain development and function, with recent studies demonstrating that chronic pain results in changes to the microbiome. Consumption of a high fat, high sugar (HFHS) diet can drastically alter composition of the microbiome and is a modifiable risk factor for many neuroinflammatory conditions.
View Article and Find Full Text PDFMol Plant Microbe Interact
January 2025
USDA ARS, Horticultural Crops Research Laboratory, 3420 NW Orchard Ave., Corvallis, Oregon, United States, 97330;
Members of the genus are responsible for many important diseases in agricultural and natural ecosystems. causes devastating diseases of oak, and tanoak stands in US forests and larch in the UK. The four evolutionary lineages involved express different virulence phenotypes on plant hosts, and characterization of gene content is foundational to understanding the basis for these differences.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!