• 제목/요약/키워드: Agricultural Environment

검색결과 5,375건 처리시간 0.03초

An Unrecorded Species of Nematode-trapping Fungus, Dactylella pseudoclavata in Korea

  • Kim, Dong-Geun;Lee, Joong-Hwan;Kim, Hyun-Ok
    • The Plant Pathology Journal
    • /
    • 제23권3호
    • /
    • pp.210-211
    • /
    • 2007
  • Dactylella pseudoclavata that captures nematodes in adhesive networks was isolated from nematode-infested strawberry plants from Andong, Korea. It produces obclavate, 0-1 septate conidia, $30-40{\mu}m$ long and $8-11{\mu}m$ wide, with round distal ends and bases shaped like bottle-necks. The conidiophores were simple, occasionally branched, $150-300{\mu}m$ long, producing 1-4 conidia at the apex. Chlamydospores were abundant, intercalary or catenulate, yellowish to brown, globate or subglobate, wart on the surface, $30-35{\times}25-30{\mu}m$ in size. This is the first report of Dactylella pseudoclavata in Korea.

Detection of Extracellular Enzyme Activities in Ganoderma neo-japonicum

  • Jo, Woo-Sik;Park, Ha-Na;Cho, Doo-Hyun;Yoo, Young-Bok;Park, Seung-Chun
    • Mycobiology
    • /
    • 제39권2호
    • /
    • pp.118-120
    • /
    • 2011
  • The ability of Ganoderma to produce extracellular enzymes, including ${\beta}$-glucosidase, cellulase, avicelase, pectinase, xylanase, protease, amylase, and ligninase was tested in chromogenic media. ${\beta}$-glucosidase showed the highest activity, among the eight tested enzymes. In particular, Ganoderma neo-japonicum showed significantly stronger activity for ${\beta}$-glucosidase than that of the other enzymes. Two Ganoderma lucidum isolates showed moderate activity for avicelase; however, Ganoderma neojaponicum showed the strongest activity. Moderate ligninase activity was only observed in Ganoderma neo-japonicum. In contrast, pectinase, amylase, protease, and cellulase were not present in Ganoderma. The results show that the degree of activity of the tested enzymes varied depending on the Ganoderma species tested.

톱밥재배에 의한 목이의 자실체 생산 (Fruit-body Production of Auricularia auricula-judae by Sawdust Cultivation)

  • 조우식;황억금;강민진;최성용
    • 한국균학회지
    • /
    • 제38권1호
    • /
    • pp.5-7
    • /
    • 2010
  • Auricularia auricula-judae is an edible mushroom, which is known as wood ear, free ear, black ear mushroom, and free jelly fish. Present experiments were conducted to determine the possibility of artificial cultivation with oak sawdust of A. auricula-judae. The duration of mycelial growth and days of pinhead formation on oak sawdust bag (1.4 kg) were 29~32 days and 13~17 days, respectively. The yield of fresh fruit-body was 275~350 g.

Bloomless 대목에 접목 재배한 백침계 오이의 생육과 품질에 미치는 재식밀도와 정지방법 (Effects of Training Method and Planting Density on the Growth and Fruit Quality of White Spined Cucumber (Cucumis sativus L. ; White spined group) Grafted on Bloomless Rootstocks)

  • 정종모;서종분;서윤원;이숙재;김정근
    • 한국생물환경조절학회:학술대회논문집
    • /
    • 한국생물환경조절학회 2006년도 춘계 학술대회 및 정기총회
    • /
    • pp.235-241
    • /
    • 2006
  • PDF