• YAKHAK HOEJI
• /
• v.45 no.6
• /
• pp.617-622
• /
• 2001

A protein-polysaccharide fraction of a Korean wild mushroom Psathyrella velutina, PVP, was prepared and its antitumor immunomodulatory activity was investigated. When PVP was administered once daily for seven days from day 1 to day 7 into male ICR mice implanted with 1 $\times$ 10$^{5}$ cells of sarcom 180 tumor cells into the peritoneum on day 4, it inhibited the growth of sarcoma 180 cells by 92.8%. In XTT assay, PVP also exhorted in vitro anti-proliferation activity on U-937, a human monoblastoid cell line, as well as sarcoma 180 cells. PVP showed marked stimulatory activity on the immune system in that it induced the accumulation of PEC (the stimulation index, Sl=4.90 at 100 mg/kg), stimulated the BALB/c mouse splenic lymphocytes to form lymphoblasts (Sl=5.75 at 100$\mu\textrm{g}$/ml), and upergulated the expression of CD25 molecules. All these results strongly support that PVP exhorts its antitumor activity through stimulation of the immune system as well as anti-proliferative activity on the tumor cells.

• YAKHAK HOEJI
• /
• v.48 no.5
• /
• pp.261-265
• /
• 2004

In the previous report, we described the marked antitumor and immunomodulatory activities of PVp, a protein-polysaccharide fraction of a Korean wild mushroom Psathyrella velutina. In this study, a protein-polysaccharide fraction, PVMP, was prepared from the shake-cultured mycelia of the same mushroom and its immunoactivities as well as chemical compositions were investigated. At 200 $\mu\textrm{g}$/ml, PVMP weakly stimulated the BALB/c mouse splenic lymphocytes to form lymphoblasts and upregulated the expression of CD25 molecules, but failed to stimulate peritoneal macrophages. In chemical analysis these two protein-polysaccharide fractions were found to be quite different in that the carbohydrate contents of PVMP and PVP, respectively, was 85.3% and 41.2%. These results reveals that PVMP, unlike PVP, is a moderate immunostimulator on the immune system.

• Mycobiology
• /
• v.38 no.4
• /
• pp.249-255
• /
• 2010

We identified Lacrymaria velutina of the Coprinaceae in Korea. The unusually large and sturdy fruiting body, fibrillose to fibrillose-scaly cap and stalk without a volva with an obscure superior hairy ring zone or hairy annulus, and blackish brown, warted spores distinguished this species from closely related Psathyrella species. An illustrated account of the microscopic traits is presented. Fruiting bodies with obtusely hemispherical caps, 2.5~6 cm, becoming convex with age; surface dry, densely fibrillose-scaly with split margin; stipe, 4.5~6 cm, equal, hollow, fibrillose, dry, whitish above the superior ring zone, light brown below; crowded gills, adnexed, dark black at maturity. Pileipellis typically cellular with the gill edge appearing white and beaded. Blackish brown basidiospores that discolor in concentrated sulfuric acid. Spores elliptical, warted, $9\sim11{\times}6\sim8{\mu}m$, with prominent snout-like germpores. Cheilocystidia abundant, $57\sim68{\times}19\sim25{\mu}m$, and narrowly elongated clavate, often clustered in threes or fours. Pleurocystidia rarely present, $45\sim47.5{\times}12\sim13{\mu}m$, and clavate to utriform. This trait distinguishes our sample as L. velutina from other Psathyrella spp. of the Coprinaceae, which have smooth spores. This taxon was clarified by the observation that Psathyrella spores fade in concentrated sulfuric acid. A molecular phylogenetic study revealed that our specimen was Lacrymria velutipes, which is closely related to Lacrymaria lacrymabunda. Moreover, those two species are clearly distinguishable from other Psathyrella species, which agreed with the morphologically distinctive traits described above. We believe that this is the first report of this taxon, which has not been described in Korea.

• Proceedings of the PSK Conference
• /
• 2001.10a
• /
• pp.197.1-197.1
• /
• 2001

• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2003.10b
• /
• pp.60-60
• /
• 2003

큰눈물버섯(Psathyrella velutina)의 균사생장 실험을 감자배지, 고구마배지, 대두박 배지를 이용하여 펠릿형성 상태를 관찰한 결과는 다음과 같다. 감자배지에서 펠릿의 수가 가장 뛰어났으며 밀도 역시 1.3g/$\ell$로 가장 높게 나타났다. 고구마 배지에서의 펠릿의 수가 가장 저조했으며 밀도 또한 0.3g/$\ell$로 가장 낮게 나타났다. 대두박 배지에서 펠릿의 수는 비교적 양호한 상태를 보였고, 그 밀도는 0.9g/$\ell$ 이었다. 공중균사의 굵기는 세 액체배지에서 5mm로 비슷한 결과를 보였지만, 고구마 배지의 공중균사는 색깔의 변색을 보여 이산화탄소가 과다 발생했음을 알 수 있었다. 큰눈물버섯의 균사생장은 감자로 만든 액체배지에서 가장 좋은 발육상태를 보였다.

• The Korean Journal of Mycology
• /
• v.42 no.4
• /
• pp.289-305
• /
• 2014

This survey was conducted in order to clarify the species diversity and distribution of mushrooms at Worldcup Park in Seoul, from May to November 2010 and 2014. In the survey, a total of 98 taxa, 98 species, 86 genera, 38 families, 12 orders, three classes, and two phyla were identified. A total of 250 specimens of Mushrooms were collected from Pyonghwa Park and 63 species, 71 genera, 36 families, 13 orders, three classes, and two phyla were identified. Coprinus atramentarius and Psathyrella candolleana were high in frequency, as ten times and nine times, respectively. In Noeul Park, 102 specimens were collected, 41 species, 42 genera, 19 families, 19 orders, two classes, and two phyla were identified. In Noeul Park mostly layed with lawn, Agrocybe semiorbicularis and Agaricus campestris were high in frequency, as ten times and nine times, respectively. There were no mushrooms in succession during three years. In Haneul Park, a total of 128 specimens of mushrooms were collected. 49 species, 57 genera, 30 families, 11 orders, three classes, and two phyla were identified. Agrocybe semiorbicularis and Phallus rugulosus were high in frequency, as four times. In Nanjicheon Park, a total of 68 specimens of mushrooms were collected. 31 species, 34 genera, 30 families, nine orders, one class, and one phylum were identified. Coprinus atramentarius and Psathyrella velutina were high in frequency, as three times. Investigation on the diversity of mushrooms at the Worldcup Park, piled up with the city's waste, will be of the great significance in the aspect of the ecological change. All specimens examined in this work are preserved in HCCN (Herbarium Conservation Center of National Academy of Agricultural Science).