P. Nieminena, V. Kärjäb, and A.-M. Mustonena
Food and Chemical Toxicology
Volume 46, Issue 2, February 2008, Pages 781-786
The confirmed finding of increased plasma CK activities and the novel observations of the present study – increased CK-MB activities, elevated plasma bilirubin concentrations and signs of pericardial inflammation – indicate that regular T. flavovirens consumption should not be recommended.
The results also enforce previous findings that the harmful effects probably require prolonged exposure and high amounts of ingested mushroom. In this context, occasional consumption of T. flavovirens would probably be harmless except in sensitive individuals, such as persons on medication, children or during pregnancy (see also Tofani, 2003).
Due to the findings of toxicity after repeated meals and controversy regarding the taxonomical position of T. flavovirens, the marketing of T. equestre (or T. flavovirens or T. auratum) was recently prohibited in Italy (Ministero della Salute, 2002), France (Ministère de la Sante et des Solidarites, 2004) and Spain (Ministerio de Sanidad y Consumo, 2006) and, in contrast to the situation after the first findings of toxicity (Korhonen, 2002), T. flavovirens is no longer considered edible in the most
recent Finnish textbooks (Salo et al., 2006).
(1) No morbidity or mortality could be detected in the mice consuming freshly frozen T. flavovirens at 12 g kg?1 d?1 for 4 weeks. (2) The exposed mice had higher plasma bilirubin concentrations and higher CK and CK-MB activities than the control mice indicating hepato-, myo- and cardiotoxicity. (3) Signs of hepato- or myotoxicity were not present in the histological samples, but the cardiac samples showed increased incidence of pericardial inflammation in the T. flavovirens-fed mice. (4) Repeated consumption of T. flavovirens should be avoided.
Between 1964 and 1992, Texaco spilled over 18.5 billion gallons of highly toxic waste into 600 open unlined pits. Little has been cleaned up. These pools contain a mixture of oil, heavy metals and radioactive substances that continues to overflow and seep into the water table, resurfacing in rivers and wells.
The Amazon Mycorenewal Project brings this exciting technique to the Amazon for
the first time ever. A coalition of Ecuadorian and international non-governmental organizations is partnering with local people to remediate their lands using mycelium as well as grow edible and medicinal mushrooms for consumption and income generation.
The Deschutes National Forest, in conjunction with , is conducting surveys of matsutake fruiting grounds to identify the impact of forest thinning. The American matsutake is a highly prized edible mushroom, the commercial harvest representing a multimillion dollar industry. Volunteers will help locate matsutake mushrooms and collect soil samples and field data. Matsutake have a symbiotic relationship with “candystick” plants (see below), which are used by volunteers and mushroom harvesters, to locate the mushrooms.
When: Mid Sept – Mid Oct
Contact: Desiree Johnson –at- 541-678-3003 -or- email@example.com
We have updated species lists for the Mt. Pisgah Mushroom Show, Hendricks Park and the Common Mushroom Check List:
Thanks to Bruce for providing this excellent resource! The lists now contain data for 25 years at the Mt. Pisgah.