• Mycobiology
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• 제32권4호
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• pp.199-201
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• 2004

The genus Biscogniauxia is a member of the Xylariaceae that has brown to dark brown and phaseoliform single cell ascospores with a conspicuous full germ slit. The isolates of Biscogniauxia collected from Mt. Nejang-san in Korea are compared with similar taxa and described. The isolation of B. nummularia var. merrillii is the first record with a precise description in Korea.

• Applied Microscopy
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• 제34권4호
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• pp.271-276
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• 2004

Biscogniauxia속에 속한 대다수의 종들은 목재를 분해균으로 알려져 있으며, 목질내지는 탄소질이며 암갈색의 자좌를 가진 Xylariales에 속하여 있다. Daldinia concentrica와 Biscogniauxia에 속한 목재부후균이 심하게 부후된 활엽수에서 분리되었으며 이는 광학현미경 및 전자현미경을 이용하여 고찰하였다. Daldinia concentrica는 국내 최초의 전자현미경을 이용한 미세구조학적 고찰이다. 또한, Biscogniauxia속 미동정 부후균은 $11.4\;15.6{\times}9.6\;12.0{\mu}m$ 크기의 자낭포자를 가지고 있으며, 국내에서 발견된 비슷한 종들과 비교 분석하였다.

• 한국균학회지
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• 제48권1호
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• pp.55-61
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• 2020

꼬마초롱이끼의 헛뿌리와 가는털깃털이끼의 잎에서 내생균을 분리하였다. 분리된 균주는 형태적 특성과 internal transcribed spacer, large subunit rDNA, Beta-tublin 영역 및 RNA polymerase II second largest subunit gene의 분자적 분석을 토대로 동정하였다. 연구 과정에서 2종의 국내 미기록종 내생균인 Cercophora thailandica와 Biscogniauxia petrensis를 확인하였다. 분리된 미기록종 내생균 균주의 형태적 특성 확인 및 계통 분석 결과에 대해 기술하였다.

• 한국균학회지
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• 제44권1호
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• pp.51-56
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• 2016

본 연구에서는 강원도의 설악산에서 주목(Taxus cuspidata Siebold & Zucc.)과 잣나무(Pinus koraiensis Siebold & Zucc.), 경기도 화악산에서 분비나무(Abies nephrolepis(Traut.) Maxim.), 경북 울릉도에서 주목 등의 침엽을 채취하여 내생균을 분리하였고, 분리된 균주의 형태학적 특징을 관찰하고, ITS rDNA와 LSU rDNA지역의 염기서열 분석하여 균을 동정하였다. 그 결과 Biscogniauxia maritime, Nemania diffusa, Pezicula carpinea, Phomopsis juglandina, Sydowia polyspora 등의 5종의 국내 미기록 내생균을 확인하였고, 이를 보고하고자 한다.

• 한국균학회지
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• 제48권2호
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• pp.87-93
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• 2020

A fungal strain designated KNU-WDM2A2 was isolated from mosquitoes in Gimcheon, Korea. The pure culture was transferred to potato dextrose agar (PDA) and synthetic nutrient agar (SNA) media and attained a diameter of 90 mm after 10 days of incubation at 25℃. The colonies were whitish to light pink and cottony to wooly, with an abundant production of aerial mycelia. The strain produced hyaline to slightly yellowish conidiophores that were rough-walled and branched, with conidiogenous cells arising terminally or laterally. Conidia were unicellular, hyaline to light brown, smooth, and oval or ovoid to clavate, with a size of 4.1-6.9×2.5-3.3 ㎛ (n=65). A phylogenetic analysis was conducted using the internal transcribed spacer (ITS) regions and 28S rDNA of large subunit (LSU) sequences, to support the cultural and morphological characteristics. The KNU-WDM2A2 strain was identified here as Biscogniauxia petrensis, new to Korea.

• 식물병연구
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• 제28권4호
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• pp.209-220
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• 2022

Charcoal canker of oak, which has recently increased in southern Iran, could pose a serious threat to the entire forest ecosystem in the near future. In addition, it seems that climate change and its consequences, such as drought in the southern regions of Iran, have exacerbated this phenomenon. Consequently, the objective of this study was to identify the fungal pathogens that could cause charcoal canker disease in the oak forests of South Zagros. It was also sought to find associations between changes in the occurrence/exacerbation of charcoal canker disease under non and intense drought stress in non-inoculated or inoculated Quercus brantii seedlings. In total, 120 isolates were obtained from eight oak forests located in the Zagros Mountains of Southern Iran, Kohgiluyeh & Boyer-Ahmad and Fars provinces, which were classified as Biscogniauxia mediterranea based on morphological assessment. Subsequently, molecular assay confirmed the result by phylogenetic inference of internal transcribed spacer-rDNA regions, α-actin, and β-tubulin genes. The results of the pathogenicity test showed that the response of isolates of B. mediterranea (Iran-G1 and Iran-M70) was varied in different environments for the measured necrotic lesion length. In comparison with the control moisture treatments (non-stress), the necrotic lesion length in inoculated treatments increased under intense drought stress. In general, inoculated oak seedlings' exposure to water-deficient stress by the pathogen of B. mediterranea could affect the spread/severity of the charcoal canker disease.

• 한국균학회지
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• 제51권4호
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• pp.511-519
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• 2023

우리나라 산림에 가장 많이 서식하고 있는 수종인 소나무(Pinus densiflora)의 내생균 다양성을 분석할 목적으로 강원도 춘천에 서식하고 있는 소나무 시료를 봄철과 가을철에 침엽, 가지, 줄기 등 부위별로 구분하여 채집하였다. 채집 시료에서 내생균 152 균주를 분리하여 29속 42종으로 동정하였다. Daldinia childiae가 44균주(28.9%)로 가장 많이 분리된 우점종이었고, Biscogniauxia maritima가 15균주(9.8%)로 분리빈도가 높았다. 부위별로는 가지에서 74균주(49%), 잎에서 47균주(31%), 줄기에서 31균주(20%)로 가지에서 가장 많은 내생균이 분리되었다. 부위별 우점종은 가지와 잎에서는 D. childiae (각각 20균주, 19균주)이었고 가지에서는 B. maritima (7균주)도 자주 분리가 되었다. 잎에서는 B. maritima가 6균주, D. childiae가 5균주로 자주 분리되었다. 채집시기에 따른 소나무 내생균의 다양성은 봄철에는 57균주가 분리되어 17속 19종으로 동정되었고 가을철에는 95균주가 분리되어 24속 35종으로 동정되었다. 자주 분리된 종으로는 봄철과 가을철 모두 공통적으로D. childiae (각각 21균주, 23균주)의 분리빈도가 가장 높았고 Biscogniauxia maritima (7균주, 8균주)도 자주 분리되었다.

• 펄프종이기술
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• 제42권2호
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• pp.20-26
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• 2010

Paper composed mainly of organic materials and they can be used as nutrient by microorganisms. Therefore microorganisms are damaging the important documents and works of art irreversibly. Previous research reported that mycelium or spores of the fungi were observed on the wax of the volumes of King Sejong especially were heavily deteriorated by fungi. Fungal strains isolated from the annals of Joseon dynasty were identified as Biscogniauxia atropunctata, Aspergillus versicolor, Penicillium polonicum, Ceriporia lacerata, Irpex lacteus. Especially Aspergillus and Penicillium are able to grow on the substrates having a 7-8% moisture content, which is much lower than the general storage condition (RH55-60%) of the paper cultural properties. Moreover, they are known as fungi cause paper deterioration and discoloration. In this study, we selected Aspergillus versicolor and Penicillium polonicum among five strains, then biological aging has been executed for 30 days. The growth of Aspergillus versicolor and Penicillium polonicum in wax was lower than wax treated paper and Hanji. The growth of them in beeswax treated paper and Hanji both were excellent.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2003년도 제10차 국제학술회의 및 추계정기 학술발표회
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• pp.19-19
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• 2003

The Xylariaceae Tul. & C. Tul is a family of sphaeriaceous genera with obscure but apparently common ancestry (Rogers, 1979), A central core of genera - Xylaria, Hypoxylon, Rosellinia, Poronia, Podosordaria, Hypocopra, Daldinia, Biscogniauxia, Kretzschmaria, Camillea, Penzigia - are obviously related, regardless of the fact that the generic limits are arguable (Rogers, 1979; Barr, 1990; Eriksson & Hawksworth, 1991; Laessoe, 1994). In general, the family Xylariaceae is primarily defined as a group of stromatic pyrenomycetes with unitunicate asci characterized by a typical apical apparatus and pigmented ascospores having a germ slit (Rogers, 1979). Since Winter (1887) circumscribed the family to include Pyrenomycetes with predominately a dark stroma, dark unveiled spores containing 5 genera: Nummularia Tul. & C. Tul., Hypoxylon Bull., Ustulina Tul. & C.Tul., Poronia Willd. and XylariaHill ex Schrank, many more genera has been added to the family (Dennis, 1961; Eriksson & Hawksworth, 1993; Whalley, 1996). In the absence of a clear circumscription of the family (Rogers, 1994) the agreed number of accepted genera is governed by individual views and there are therefore difference between the proposals for the ascomycetes recognized 35 genera and indicated a further 3 which might belong there. Laessoe reviewed the family and included 37 genera but a few of these were listed as uncertain (Laessoe, 1994). In the most recent accounts Whalley (1996) listed 41 genera but again a number of these were considered uncertain and Ju and Rogers (1996) accepted 39 genera in their interpretation of the family. Since Laessoe (1994) merged Daldinia and Versiomyces with Hypoxylonand Ju and Rogers (1996) combined Astrocystis with Rosellinia and Helicogermslita, which can be argued strongly against, it is likely that a realistic number of genera will be close to 40 (Whalley, 1996; Table 1).

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2003년도 심포지엄
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• pp.43-49
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• 2003

The Xylariaceae Tul. & C. Tul is a family of sphaeriaceous genera with obscure but apparently common ancestry (Rogers, 1979). A central core of genera - Xylaria, Hypoxylon, Rosellinia, Poronia, Podosordaria, Hypocopra, Daldinia, Biscogniauxia, Kretzschmaria, Camillea, Penzigia - are obviously related, regardless of the fact that the generic limits are arguable (Rogers, 1979; Barr, 1990; Eriksson & Hawksworth, 1991; Laessoe, 1994). In general, the family Xylariaceae is primarily defined as a group of stromatic pyrenomycetes with unitunicate asci characterized by a typical apical apparatus and pigmented ascospores having a germ slit (Rogers, 1979). Since Winter (1887) circumscribed the family to include Pyrenomycetes with predominately a dark stroma, dark unveiled spores containing 5 geners: Nummularia Tul, & C. Tul., Hypoxylon Bull., ustulina Tul. & C.Tul., Poronia Willd. and XylariaHill ex Schrank, many more genera has been added to the family (Dennis, 1961; Eriksson & Hawksworth, 1993; Whalley, 1996). In the absence of the clear circumscription of the family (Rogers, 1994) the agreed number of accepted genera is governed by individual views and there are therefore difference between the proposals for the ascomycetes recognized 35 genera and indicated a further 3 which might belong there. Laessore reviewed the family and included 37 genera but a few of these were listed as uncertain (Laessoe, 1994). In the most recent accounts Whalley (1996) listed 41 genera but again a number of these were considered uncertain and Ju and Rogers (1996) accepted 39 genera in their interpretation of the family. Since Laessoe (1994) merged Daldinia and Versiomyces with Hypoxylonand Ju and Rogers (1996) combined Astrocystis with Resellinia and Helicogermslita, which can be argued strongly against, it is likely that a realistic number of genera will be close to 40(Whalley, 1996; table 1).