Our research is directed on understanding the genetics of edible mushrooms in order to improve breeding efficiency. The focus is on button mushrooms (Agaricus bisporus) and oyster mushrooms (Pleurotus ostreatus). For this we also explore the biological variation within our large collection of varieties (>5000 strains representing 125 species) by assessing genetic relatedness within species and quantifying several phenotypic characteristics.
We also explore the utilisation of fungi for selective degradation of lignin in organic (waste) materials. Research done so far has shown that a number of species degrade substantial portions of lignin while hardly consuming cellulose. These fungi can thus be used to make cellulose bioavailable in low value organic waste, upgrading it into animal feed or feedstock for the production of bioenergy.
Button mushroom is represented by two compatible subspecies differing in the interchromosomal crossovers. In commercial lines and most wild isolates, crossovers are mainly restricted to chromosome ends whereas in the other subspecies crossovers take place over the entire chromosome. Segregating populations are used now to study mechanisms behind these two recombination landscapes. This might generate knowledge to control meiosis either to enhance or retain allele combinations.
Almost all button mushroom cultivars used worldwide are very similar. Want to know why? Read the article Why are all button mushroom cultivars similar?
The utilisation of lignocellulose is limited by the presence of recalcitrant lignin. Physical and chemical pretreatments are now used to reduce/modify lignin and enhancing the access to (hemi)cellulose. White rot fungi (including many edible fungi) selectively degrade lignin during vegetative growth and can thus be used to valorise lignocellulose in a low tech, low cost and sustainable way.
Research is directed to:
- Screening optimal fungal-organic matter combinations
- Optimize conditions for selectively degrading lignin
- Using biological diversity within each fungal species to optimize lignin degradation (including breeding)
Chitosan nanoparticles-loaded Citrus aurantium essential oil : a novel delivery system for preserving the postharvest quality of Agaricus bisporus
Journal of the Science of Food and Agriculture 98 (2018)13. - ISSN 0022-5142 - p. 5112 - 5119.
Adaptation of goat rumen fluid to the fermentation of fungi treated wheat straw
pH of wheat straw during fungal treatment and storage at different temperatures
Screening of white-rot fungi for bioprocessing of wheat straw into ruminant feed
Journal of Applied Microbiology 125 (2018)2. - ISSN 1364-5072 - p. 468 - 479.
Variation in the solubilization of crude protein in wheat straw by different white-rot fungi
Animal Feed Science and Technology 242 (2018). - ISSN 0377-8401 - p. 135 - 143.
Nucleus-specific expression in the multinuclear mushroom-forming fungus Agaricus bisporus reveals different nuclear regulatory programs
Proceedings of the National Academy of Sciences of the United States of America 115 (2018)17. - ISSN 0027-8424 - p. 4429 - 4434.
Variation in the solubilisation of nitrogenous compounds in wheat straw by different white-rot fungi
Milk yield and composition of dairy goats fed <em>Lentinula</em> <em>Edodes</em> and <em>Ceriporiopsis</em> <em>subvermispora</em> treated wheat straw
A genetic linkage map of Pleurotus tuoliensis integrated with physical mapping of the de novo sequenced genome and the mating type loci
BMC Genomics 19 (2018). - ISSN 1471-2164
Preservation of Ceriporiopsis subvermispora and Lentinula edodes treated wheat straw under anaerobic conditions
Journal of the Science of Food and Agriculture 98 (2018)3. - ISSN 0022-5142 - p. 1232 - 1239.
- Karin Scholtmeijer
- Nardes Sedaghat Telgerd