Skip to content

Kazumasa Yokoyama

5 papers in the library · 59 citations · publishing 1981-2006

Papers

Sort Most recent Most cited

Phylogenetic relationship of psychoactive fungi based on rRNA gene for a large subunit and their identification using the TaqMan assay (II).

Forensic Science International November 10, 2006 Takuro Maruyama, Nobuo Kawahara, Kazumasa Yokoyama et al.

"Magic mushroom (MM)" is the name most commonly given to psychoactive fungi containing the hallucinogenic components: psilocin (1) and psilocybin (2). We investigated the rRNA gene (internal transcribed spacer (ITS) and large subunit (LSU)) of two Panaeolus species and four Psilocybe species fungi (of these, two are non-psilocybin species). On the basis of sequence alignment, we improved the...

[DNA and chemical analyses of commercial fly agaric-related products].

Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan April 1, 2005 Takuro Maruyama, Nobuo Kawahara, Toshimitsu Fukiharu et al.

Since June 6, 2002, psilocin and psilocybin-containing fungi (commonly called "magic mushrooms") have been regulated by the Narcotics and Psychotropics Control Law in Japan. However, various fly agaric-related products are now entering the Japanese market via the internet. In this study, fly agaric-related products available in this way were investigated for raw materials by DNA analysis and...

Phylogenetic relationship of psychoactive fungi based on the rRNA gene for a large subunit and their identification using the TaqMan assay.

Chemical & pharmaceutical bulletin June 1, 2003 Takuro Maruyama, Kazumasa Yokoyama, Yukiko Makino et al.

"Magic mushrooms" (MMs) are psychoactive fungi containing the and Psychotropics Control Law in Japan. Because there are many kinds of MMs and they are often sold even as dry powders in local markets, it is very difficult to identify the original species of the MMs by morphological observation. Therefore, we investigated the rRNA gene for a large subunit (LSU) of several MMs to classify them by...

DOI: 10.1248/cpb.51.710 (opens in new tab) Full text (opens in new tab) Agaricales Rna, fungal Hallucinogens Phylogeny +5

Discrimination of Psychoactive Fungi (Commonly Called "Magic Mushrooms") Based on the DNA Sequence of the Internal Transcribed Spacer Region.

Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2003 Takuro Maruyama, Osamu Shirota, Nobuo Kawahara et al. 14 citations

'Magic mushrooms' (MMs) are psychoactive fungi containing the hallucinogenic compounds, psilocin (1) and psilocybin (2). Since June 6, 2002, these fungi have been regulated by the Narcotics and Psychotropics Control Law in Japan. Because there are many kinds of MMs and they are sold even as dry powders in local markets, it is very difficult to identify the original species of the MMs by...

DOI: 10.3358/shokueishi.44.44 (opens in new tab) Internal transcribed spacer Sequence biology Genetics

Isolation of Psilocybin From Psilocybe argentipes and Its Determination in Specimens of Some Mushrooms

Journal of Natural Products May 1, 1981 Yutaka Koike, Kohko Wada, Genjiro Kusano et al. 45 citations

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsolation of Psilocybin From Psilocybe argentipes and Its Determination in Specimens of Some MushroomsYutaka Koike, Kohko Wada, Genjiro Kusano, Shigeo Nozoe, and Kazumasa YokoyamaCite this: J. Nat. Prod. 1981, 44, 3, 362–365Publication Date (Print):May 1, 1981Publication History Published online1 July 2004Published inissue 1 May...

DOI: 10.1021/np50015a023 (opens in new tab) Psilocybin Citation Social media Library science +3